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Toshiba Corp

Toshiba Co
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774

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
EP1168840A2 Method and apparatus for special video reproduction modes Expired / Lapsed 2001-06-29 — 25 Details
EP1077539A1 Radio communication system using point-to-point and point-t… Expired / Lapsed 2000-08-15 — 18 Details
EP0923145A2 Joined structure of dissimilar metallic materials Expired / Lapsed 1998-11-19 — 46 Details
EP0921659A1 Multimedia information communication system Expired / Lapsed 1998-06-16 — 43 Details
EP0883270A1 A distributed network computing system Expired / Lapsed 1998-05-27 — 63 Details
EP0871309A2 Router device and frame transfer method using datalink laye… Expired / Lapsed 1998-04-07 — 38 Details
EP0866446A2 A disk apparatus having a single recording head and capable… Expired / Lapsed 1998-03-17 — 22 Details
EP0930768A1 Communication terminal Expired / Lapsed 1998-03-03 — 27 Details
EP0903873A1 Frame synchronization system between base stations of mobil… Expired / Lapsed 1997-12-26 — 16 Details
EP0849946A2 Interactive TV broadcasting system and file access method a… Expired / Lapsed 1997-11-19 — 9 Details
EP0837579A2 Data transfer control device, relay device and control devi… Expired / Lapsed 1997-10-15 — 78 Details
JPH1194941A Scale extraction type radar image analyzer Expired / Lapsed 1997-09-24 — 0 Details
EP0795809A2 Secure software distribution system and software utilizatio… Expired / Lapsed 1997-03-11 — 16 Details
EP0793357A2 Correlator and synchronous tracking apparatus for a spread … Expired / Lapsed 1997-02-28 — 28 Details
EP0814474A1 Method and apparatus for dubbing control Expired / Lapsed 1996-12-11 — 116 Details
EP0775962A2 Information print apparatus and method Expired / Lapsed 1996-11-19 — 8 Details
EP0773503A2 File transfer method, file requesting client device, and fi… Expired / Lapsed 1996-11-08 — 44 Details
EP0766463A2 Television receiver with superimposition of text and/or gra… Expired / Lapsed 1996-09-26 — 12 Details
EP0763915A2 Packet transfer device and method adaptive to a large numbe… Expired / Lapsed 1996-09-18 — 21 Details
EP0757485A2 Interactive television system Expired / Lapsed 1996-07-26 — 47 Details
JPH103920A Lithium secondary battery and method of manufacturing the s… Expired / Lapsed 1996-06-17 — 0 Details
JPH10291A Drum type washing machine Expired / Lapsed 1996-06-14 — 0 Details
EP0738078A2 Recording medium, apparatus and method for recording data o… Expired / Lapsed 1996-04-12 — 53 Details
EP0737975A2 Recording medium, recording apparatus and recording method … Expired / Lapsed 1996-04-10 — 28 Details
EP0732660A1 Communication method and the system thereof applied for the… Expired / Lapsed 1996-03-15 — 29 Details
EP0729250A2 OFDM transmission/reception system and transmitting/receivi… Expired / Lapsed 1996-02-23 — 15 Details
EP0739141A2 Image data coding and/or decoding system capable of high-ef… Expired / Lapsed 1996-02-22 — 13 Details
EP0724264A2 A recording medium on which a data containing navigation da… Expired / Lapsed 1996-01-30 — 169 Details
EP0766471A1 Transmitter, receiver, communication processing system inte… Expired / Lapsed 1995-12-26 — 24 Details
EP0720092A1 Microprocessor with debugging system Expired / Lapsed 1995-12-21 — 4 Details
EP0716543A2 Multi-picture television receiver Expired / Lapsed 1995-12-05 — 8 Details
EP0683389A1 Laminograph and inspection and repair device using the same Expired / Lapsed 1995-05-11 — 37 Details
EP0750304A1 Recording medium and reproducing apparatus thereof Expired / Lapsed 1995-04-13 — 2 Details
EP0677954A2 Method for forming sub image data packet including data of … Expired / Lapsed 1995-04-13 — 19 Details
EP0675644A2 Television receiver with picture-in-picture Expired / Lapsed 1995-03-23 — 4 Details
EP0673131A2 Hierarchical OFDM system Expired / Lapsed 1995-03-15 — 12 Details
EP0677961A2 Method for recording and reproducing data Expired / Lapsed 1995-02-02 — 21 Details
EP0653858A2 OFDM Synchronization demodulation circuit Expired / Lapsed 1994-11-15 — 8 Details
EP0656706A2 Synchronisation of OFDM signals Expired / Lapsed 1994-11-11 — 4 Details
EP0651391A2 Screw-threaded fastening device Expired / Lapsed 1994-10-27 — 10 Details
JPH0879387A Exchange system Expired / Lapsed 1994-09-09 — 0 Details
EP0674207A1 Display device and its driving method Expired / Lapsed 1994-09-09 — 22 Details
EP0639030A2 Two-way CATV system and remote control system Expired / Lapsed 1994-08-10 — 75 Details
EP0615209A2 Information input device, position information holding devi… Expired / Lapsed 1994-03-11 — 33 Details
EP0614318A2 Video encoder, video decoder, and video motion estimation a… Expired / Lapsed 1994-03-03 — 15 Details
EP0616290A2 Medical information processing system for supporting diagno… Expired / Lapsed 1994-02-28 — 28 Details
EP1001628A1 Television signal transmission and reception system Expired / Lapsed 1993-11-15 — 10 Details
EP0598576A2 Television signal transmission and reception system with mu… Expired / Lapsed 1993-11-15 — 19 Details
EP0677842A1 Multi-scene recording medium and reproduction apparatus Expired / Lapsed 1993-10-29 — 38 Details
EP0593013A2 Coding apparatus Expired / Lapsed 1993-10-12 — 13 Details
EP0590974A2 Coded data editing apparatus and edited coded data decoding… Expired / Lapsed 1993-09-30 — 4 Details
JPH078497A Ultrasonic diagnostic equipment Expired / Lapsed 1993-06-25 — 0 Details
EP0574002A2 Semiconductor memory device with voltage stress test mode Expired / Lapsed 1993-06-11 — 18 Details
EP0572024A2 Multimedia display control system for storing image data in… Expired / Lapsed 1993-05-27 — 48 Details
EP0569040A2 Memory card device Expired / Lapsed 1993-05-10 — 13 Details
EP0615193A1 Memory card device Expired / Lapsed 1992-11-30 — 8 Details
EP0543329A2 Speech dialogue system for facilitating human-computer inte… Expired / Lapsed 1992-11-17 — 45 Details
EP0535622A2 A flat panel display control system Expired / Lapsed 1992-09-30 — 18 Details
EP0667695A1 Radio information and communication system using multicarri… Expired / Lapsed 1992-08-24 — 29 Details
JPH067337A X-ray CT system Expired / Lapsed 1992-06-25 — 0 Details
EP0517141A2 High efficiency coding signal processing apparatus with err… Expired / Lapsed 1992-06-01 — 4 Details
EP0516159A2 Resume processing function for the OS/2 operating system Expired / Lapsed 1992-05-29 — 32 Details
EP0506102A3 Drawing preparing system in a data processing apparatus Expired / Lapsed 1992-03-27 — 0 Details
JPH05175853A Audio signal error correction coding system Expired / Lapsed 1991-12-25 — 0 Details
EP0487110A2 Computer-aided diagnosis system for medical use Expired / Lapsed 1991-11-22 — 13 Details
EP0489301A1 Moving picture managing device Expired / Lapsed 1991-11-19 — 3 Details
DE4135803A1 DEVICE FOR CONTROLLING A POWER PLANT FROM A MULTIPLE NUMBER… Expired / Lapsed 1991-10-30 — 0 Details
EP0482773A1 Communication control system using an asynchronous transfer… Expired / Lapsed 1991-09-27 — 7 Details
EP0477039A2 Computer network Expired / Lapsed 1991-09-20 — 6 Details
EP0473188A1 Method of controlling data transmission in ATM network with… Expired / Lapsed 1991-08-30 — 14 Details
EP0468802A2 Broadband switching networks Expired / Lapsed 1991-07-26 — 19 Details
EP0466139A2 Mobile radio communication system Expired / Lapsed 1991-07-10 — 7 Details
JPH054181A Robot controller Expired / Lapsed 1991-06-24 — 0 Details
EP0458623A2 A method for adjusting current clock counts in a distribute… Expired / Lapsed 1991-05-22 — 18 Details
EP0458316A2 Computer having integral type hand write input/display devi… Expired / Lapsed 1991-05-22 — 9 Details
EP0456491A2 A distributed database management system Expired / Lapsed 1991-05-09 — 7 Details
EP0454120A2 Portable computer comprising keyboard and coordinate input … Expired / Lapsed 1991-04-25 — 27 Details
EP0446934A2 Fabricating method of composite material, and heat conducti… Expired / Lapsed 1991-03-14 — 11 Details
EP0435182A2 Control system for high-efficiency operation of generating … Expired / Lapsed 1990-12-21 — 11 Details
EP0443184A2 Data-base system for fuzzy data Expired / Lapsed 1990-12-21 — 7 Details
EP0435174A2 Image forming/storing apparatus which can store image data … Expired / Lapsed 1990-12-20 — 1 Details
DE4040547A1 LOW-NOISE REFRIGERATOR AND NOISE CONTROL PROCEDURE THEREFOR Expired / Lapsed 1990-12-18 — 0 Details
EP0431638A2 Method and apparatus for document formatting Expired / Lapsed 1990-12-07 — 20 Details
EP0415237A2 Active noise control apparatus for domestic appliance Expired / Lapsed 1990-08-21 — 15 Details
EP0409232A2 Car-mounted video displaying apparatus Expired / Lapsed 1990-07-19 — 6 Details
EP0407161A2 Packet communication system Expired / Lapsed 1990-07-04 — 19 Details
EP0402764A2 Control apparatus for plane working robot Expired / Lapsed 1990-06-07 — 11 Details
JPH047862A Lead forming method for semiconductor device Expired / Lapsed 1990-04-25 — 0 Details
EP0395033A2 Portable computer to which different types of flat display … Expired / Lapsed 1990-04-25 — 13 Details
JPH044288A Production of zinc sulfide phosphor activated with silver Expired / Lapsed 1990-04-21 — 0 Details
JPH04491A Information display device Expired / Lapsed 1990-04-18 — 0 Details
EP0392538A2 Quadrature amplitude modulation communication system with t… Expired / Lapsed 1990-04-12 — 20 Details
EP0390164A2 Image display system Expired / Lapsed 1990-03-29 — 16 Details
EP0384758A2 Call admission control method and cell flow monitoring meth… Expired / Lapsed 1990-02-22 — 5 Details
EP0383232A2 Computerized tomographic apparatus Expired / Lapsed 1990-02-12 — 7 Details
EP0378393A2 Dynamic image editor apparatus Expired / Lapsed 1990-01-10 — 18 Details
EP0371383A2 Power and signal supply control device Expired / Lapsed 1989-11-21 — 14 Details
EP0361968A2 Noise cancellor Expired / Lapsed 1989-09-29 — 36 Details
EP0361464A2 Method and apparatus for producing an abstract of a document Expired / Lapsed 1989-09-28 — 12 Details
DE3930648A1 Portable computer or word-processor with removable display … Expired / Lapsed 1989-09-13 — 0 Details
DE3928924A1 BOX-SHAPED ELECTRONIC DEVICE Expired / Lapsed 1989-08-31 — 0 Details
JPH038094A Managing device for start / end of work Expired / Lapsed 1989-06-06 — 0 Details
EP0344989A2 Radio telecommunication apparatus Expired / Lapsed 1989-05-26 — 28 Details
EP0342923A2 Fe-based soft magnetic alloy Expired / Lapsed 1989-05-16 — 10 Details
EP0340720A2 Interface circuit Expired / Lapsed 1989-05-02 — 8 Details
DE3910052A1 TELEVISION RECEIVER WITH SCREEN TEXT RECEPTION FUNCTION AND… Expired / Lapsed 1989-03-28 — 0 Details
EP0333225A2 Packet communication exchange including dummy packet transm… Expired / Lapsed 1989-03-17 — 36 Details
DE3905602A1 NAVIGATION DEVICE AND ADJUSTMENT OR TRACKING PROCEDURE THER… Expired / Lapsed 1989-02-23 — 0 Details
EP0324185A2 Input protecting circuit in use with a MOS semiconductor de… Expired / Lapsed 1988-12-30 — 11 Details
JPH021068A Picture display device Expired / Lapsed 1988-12-27 — 0 Details
JPH021065A Picture display device Expired / Lapsed 1988-12-27 — 0 Details
EP0319219A2 Paging apparatus having a battery saving function Expired / Lapsed 1988-11-28 — 19 Details
EP0316609A2 Integrated circuit with built-in trace data collecting circ… Expired / Lapsed 1988-10-20 — 11 Details
EP0311416A2 Translating communication system having central translating… Expired / Lapsed 1988-10-07 — 14 Details
JPH0259978A Line detecting device Expired / Lapsed 1988-08-26 — 0 Details
EP0304289A2 Half-tone image reproduction method and apparatus Expired / Lapsed 1988-08-17 — 30 Details
JPH028922A Input device Expired / Lapsed 1988-06-27 — 0 Details
JPH01310638A Endoscope device Expired / Lapsed 1988-06-10 — 0 Details
EP0291965A1 Method and system for controlling robot for constructing pr… Expired / Lapsed 1988-05-18 — 9 Details
DE3813980A1 PROGRAMMABLE CONTROL DEVICE Expired / Lapsed 1988-04-26 — 0 Details
DE3810877A1 VIDEO SYSTEM WITH SELF-DIAGNOSTIC FUNCTION Expired / Lapsed 1988-03-30 — 0 Details
JPH01249285A Laser beam machine for tubular body to be rolled Expired / Lapsed 1988-03-29 — 0 Details
DE3809226A1 HIGH TEMPERATURE COMBUSTION CATALYST AND METHOD FOR PRODUCI… Expired / Lapsed 1988-03-18 — 0 Details
EP0283267A2 Information retrieval apparatus and interface for informati… Expired / Lapsed 1988-03-16 — 10 Details
DE3803179A1 VIBRATION CIRCUIT FOR AN INTEGRATED CIRCUIT ARRANGEMENT Expired / Lapsed 1988-02-03 — 0 Details
EP0269978A2 Network adapter for connecting local area network to backbo… Expired / Lapsed 1987-11-24 — 12 Details
EP0263666A2 Cordless telephone apparatus Expired / Lapsed 1987-10-05 — 10 Details
EP0262619A2 Shading circuit for shading a plurality of polygons which c… Expired / Lapsed 1987-09-25 — 10 Details
EP0274571A2 Electronic document filing apparatus Expired / Lapsed 1987-09-24 — 22 Details
EP0263312A2 Semiconductor memory device with a self-testing function Expired / Lapsed 1987-09-08 — 17 Details
DE3726210A1 Calculus crushing device Expired / Lapsed 1987-08-06 — 0 Details
DE3725691A1 Endoscope surgical heating probe, treating diseased biologi… Expired / Lapsed 1987-08-03 — 0 Details
DE3723778A1 CIRCUIT FOR THE AUTOMATIC SETTING OF TIME CONSTANTS FOR A F… Expired / Lapsed 1987-07-17 — 0 Details
JPS647226A Image displaying device Expired / Lapsed 1987-06-30 — 0 Details
DE3721170A1 PORTABLE STORAGE MEDIUM Expired / Lapsed 1987-06-26 — 0 Details
JPS64909A Optical device in image forming device Expired / Lapsed 1987-06-24 — 0 Details
EP0249356A1 Data card with inductive signal transfer device Expired / Lapsed 1987-05-26 — 12 Details
EP0247827A2 Computer system with multiwindow presentation manager Expired / Lapsed 1987-05-26 — 17 Details
EP0246744A2 IC card and method of manufacturing the same Expired / Lapsed 1987-03-31 — 13 Details
EP0240319A2 Magnetic resonance imaging system Expired / Lapsed 1987-03-31 — 6 Details
EP0240145A2 Processor-selection system Expired / Lapsed 1987-02-25 — 9 Details
DE3702355A1 ULTRASONIC IMAGE DEVICE Expired / Lapsed 1987-01-27 — 0 Details
DE3700504A1 PORTABLE ELECTRONIC DEVICE Expired / Lapsed 1987-01-09 — 0 Details
JPS63166219A Manufacture of semiconductor device Expired / Lapsed 1986-12-26 — 0 Details
EP0224377A2 Speed detecting device Expired / Lapsed 1986-11-19 — 8 Details
DE3635409A1 PORTABLE ELECTRONIC DEVICE Expired / Lapsed 1986-10-17 — 0 Details
EP0218176A2 Portable electronic device Expired / Lapsed 1986-09-30 — 15 Details
EP0217351A2 Communication control apparatus Expired / Lapsed 1986-09-30 — 9 Details
EP0219692A2 Method for producing heat sink and heat sink thus produced Expired / Lapsed 1986-09-17 — 11 Details
JPS6363432A Stereoscopic television Expired / Lapsed 1986-09-03 — 0 Details
EP0225969A1 Apparatus and method for controlling irradiation of electro… Expired / Lapsed 1986-08-14 — 11 Details
DE3621046A1 Method and device for storing and processing image informat… Expired / Lapsed 1986-06-24 — 0 Details
EP0200389A2 Proofreading/correction apparatus Expired / Lapsed 1986-04-08 — 5 Details
EP0194897A2 Ultrasound therapy system Expired / Lapsed 1986-03-14 — 9 Details
EP0196781A2 Method & apparatus for automatically transmitting a message… Expired / Lapsed 1986-02-27 — 30 Details
JPS6264558A Recorder Expired / Lapsed 1985-09-18 — 0 Details
JPS6261231A Circuit breaker Expired / Lapsed 1985-09-10 — 0 Details
JPS6252622A Input device Expired / Lapsed 1985-08-30 — 0 Details
EP0168818A2 Color image copying apparatus Expired / Lapsed 1985-07-16 — 15 Details
EP0170416A1 Ultrasound hyperthermia apparatus Expired / Lapsed 1985-06-28 — 16 Details
JPS62185A Tv signal broadcasting system Expired / Lapsed 1985-06-26 — 0 Details
DE3518084A1 IMAGE GENERATION DEVICE Expired / Lapsed 1985-05-20 — 0 Details
EP0157303A2 Data processing device Expired / Lapsed 1985-03-21 — 10 Details
EP0157539A2 Electronic document filing system Expired / Lapsed 1985-03-19 — 12 Details
EP0153859A2 Image building apparatus Expired / Lapsed 1985-02-26 — 13 Details
DE3447266A1 IMAGE GENERATION DEVICE Expired / Lapsed 1984-12-22 — 0 Details
JPS61136714A Piping cutting unit Expired / Lapsed 1984-12-10 — 0 Details
EP0144084A2 Reagent for immunoassay and analytical method using the same Expired / Lapsed 1984-11-30 — 14 Details
EP0142975A2 Apparatus and method for reproducing an original colour ima… Expired / Lapsed 1984-11-13 — 6 Details
DE3439685A1 IMAGE GENERATION DEVICE Expired / Lapsed 1984-10-30 — 0 Details
EP0138219A2 Method of storing encrypted data on a card Expired / Lapsed 1984-10-15 — 6 Details
DE3435740A1 PRINTING DEVICE Expired / Lapsed 1984-09-28 — 0 Details
JPS6180221A Endoscope device Expired / Lapsed 1984-09-28 — 0 Details
EP0139242A2 Ultrasonic imaging device Expired / Lapsed 1984-09-25 — 12 Details
EP0138386A2 Identification card Expired / Lapsed 1984-09-13 — 6 Details
DE3431968A1 Image-producing device Expired / Lapsed 1984-08-30 — 0 Details
EP0132401A2 Information transmission system Expired / Lapsed 1984-07-23 — 37 Details
DE3425951A1 IMAGE GENERATION DEVICE Expired / Lapsed 1984-07-13 — 0 Details
DE3425006A1 ELECTROPHOTOGRAPHIC METHOD AND DEVICE Expired / Lapsed 1984-07-06 — 0 Details
JPS61581A Corrosion resistant beryllium substrate Expired / Lapsed 1984-06-14 — 0 Details
DE3421925A1 TRANSFER MATERIAL FEEDER Expired / Lapsed 1984-06-13 — 0 Details
EP0131387A2 Solid state image sensor with high resolution Expired / Lapsed 1984-06-11 — 11 Details
DE3420335A1 IMAGE GENERATION DEVICE Expired / Lapsed 1984-05-30 — 0 Details
GB2141385A Image forming device Expired / Lapsed 1984-05-23 — 9 Details
EP0125857A2 Grain counter Expired / Lapsed 1984-05-04 — 12 Details
EP0121411A2 Stereoscopic vision system Expired / Lapsed 1984-03-28 — 10 Details
EP0121798A2 Dynamic type semiconductor memory device Expired / Lapsed 1984-03-09 — 21 Details
EP0112729A1 Control system for grasping force of a manipulator for gras… Expired / Lapsed 1983-12-23 — 6 Details
EP0113186A2 Method of manufacturing fine filamentary Nb-Ti based alloy … Expired / Lapsed 1983-11-29 — 13 Details
JPS60108400A Molecular-beam apparatus for crystal growth Expired / Lapsed 1983-11-15 — 0 Details
EP0109245A2 Radiation sensitive record disc with improved internal stru… Expired / Lapsed 1983-11-07 — 19 Details
EP0106213A1 Decentralized information processing system and initial pro… Expired / Lapsed 1983-09-23 — 10 Details
EP0103759A2 Document issuing apparatus Expired / Lapsed 1983-08-18 — 15 Details
DE3326943A1 SEMICONDUCTOR ARRANGEMENT Expired / Lapsed 1983-07-26 — 0 Details
EP0097044A1 Diagnostic X-ray apparatus Expired / Lapsed 1983-06-10 — 11 Details
JPS59201689A Controlling method of ac motor Expired / Lapsed 1983-04-30 — 0 Details
EP0091619A2 Remote control device Expired / Lapsed 1983-03-30 — 7 Details
EP0086619A2 Display device Expired / Lapsed 1983-02-08 — 13 Details
EP0083989A2 Image editing apparatus Expired / Lapsed 1983-01-10 — 11 Details
EP0083804A1 An AC current detection circuit for a rotor driving supply … Expired / Lapsed 1982-12-30 — 6 Details
DE3248680A1 MICROCOMPUTER WITH ENERGY SAVING OPERATING CONDITION Expired / Lapsed 1982-12-30 — 0 Details
EP0083240A2 Solid state image sensor with high resolution Expired / Lapsed 1982-12-24 — 22 Details
DE3246302A1 DYNAMIC FIXED MEMORY Expired / Lapsed 1982-12-14 — 0 Details
EP0081329A2 Method of making a two mask structure for cathode ray tube Expired / Lapsed 1982-11-26 — 11 Details
EP0075945A2 Stacked semiconductor device and method for manufacturing t… Expired / Lapsed 1982-09-29 — 9 Details
JPS5945563A Automatic bus switching device for testing bus connecting e… Expired / Lapsed 1982-09-08 — 0 Details
JPS599976A Absolute pressure type semiconductor pressure sensor Expired / Lapsed 1982-07-09 — 0 Details
JPS59638A Sampling unit Expired / Lapsed 1982-06-26 — 0 Details
EP0058958A2 Complementary MOSFET logic circuit Expired / Lapsed 1982-02-19 — 48 Details
EP0060408A1 Electrically erasable programmable read only memory Expired / Lapsed 1982-02-19 — 13 Details
EP0052519A2 Pulse code modulation signal recording and reproducing Expired / Lapsed 1981-11-18 — 18 Details
JPS57115518A Screw for spectacles Expired / Lapsed 1981-11-16 — 0 Details
JPS57115517A Nose pad and leg for spectacles Expired / Lapsed 1981-11-16 — 0 Details
EP0050005A2 Semiconductor memory with improved data programming time Expired / Lapsed 1981-10-07 — 28 Details
EP0048992A2 Printed circuit board and method for fabricating the same Expired / Lapsed 1981-09-29 — 23 Details
EP0048896A2 Clock synchronization signal generating circuit Expired / Lapsed 1981-09-16 — 38 Details
JPS5831955U abrasive belt Expired / Lapsed 1981-08-20 — 0 Details
EP0046570A2 Respiration monitoring apparatus Expired / Lapsed 1981-08-19 — 14 Details
JPS587182A Message display method Expired / Lapsed 1981-07-07 — 0 Details
JPS582060A Manufacture of c-mos semiconductor device Expired / Lapsed 1981-06-27 — 0 Details
EP0029568A1 Image sensor device Expired / Lapsed 1980-11-17 — 11 Details
JPS5740964A Cooling device for semiconductor power element Expired / Lapsed 1980-08-26 — 0 Details
JPS56106646A Laser knife for operation Expired / Lapsed 1980-01-31 — 0 Details
DE2944810A1 METHOD AND DEVICE FOR ASSEMBLING ELECTRONIC COMPONENTS Expired / Lapsed 1979-11-06 — 0 Details
JPS5655896A Freez vent device Expired / Lapsed 1979-10-15 — 0 Details
WO1980002461A1 Automatic testing system for printed circuit boards Expired / Lapsed 1979-06-30 — 0 Details
JPS5548725A Spectacle parts Expired / Lapsed 1978-10-02 — 0 Details
JPS5535332A Spectacle parts Expired / Lapsed 1978-09-04 — 0 Details
JPS5521802A High frequency heater Expired / Lapsed 1978-08-01 — 0 Details
JPS54160167A Bonding device Expired / Lapsed 1978-06-09 — 0 Details
DE2812346A1 LIGHT DISTRIBUTOR Expired / Lapsed 1978-03-21 — 0 Details
FR2336801A1 INTEGRATED CIRCUIT Expired / Lapsed 1976-12-24 — 0 Details
DE2658669A1 DEVICE FOR IDENTIFYING A FOREGROUND OBJECT Expired / Lapsed 1976-12-23 — 0 Details
DE2654481B2 Remote facsimile image transmission apparatus Expired / Lapsed 1976-12-01 — 0 Details
JPS5365089A Semiconductor pressure transducer Expired / Lapsed 1976-11-24 — 0 Details
JPS5335458A Antenna Expired / Lapsed 1976-09-14 — 0 Details
JPS5330875A Production of semiconductor device Expired / Lapsed 1976-09-03 — 0 Details
DE2630632A1 METHOD OF MANUFACTURING A LIGHT GUIDING GLASS FIBER Expired / Lapsed 1976-07-07 — 0 Details
JPS5387A Automatic design system Expired / Lapsed 1976-06-24 — 0 Details
JPS52130179A Water tank for measuring ultrasonic wave Expired / Lapsed 1976-04-23 — 0 Details
DE2557604A1 ARTIFICIAL KIDNEY Expired / Lapsed 1975-12-20 — 0 Details
JPS5121167A JPS5121167A - - Google Patents Expired / Lapsed 1974-08-14 — 0 Details
JPS5114597A JPS5114597A - - Google Patents Expired / Lapsed 1974-07-26 — 0 Details
JPS517892A JPS517892A - - Google Patents Expired / Lapsed 1974-07-08 — 0 Details
DE2424582A1 TRANSMITTER AND RECEIVER FOR ULTRASONIC WAVES Expired / Lapsed 1974-05-21 — 0 Details
DE2402829A1 INDUSTRIAL MANIPULATOR Expired / Lapsed 1974-01-22 — 0 Details
DE2008611A1 Linear synchronous motor in comb arrangement Expired / Lapsed 1970-02-24 — 0 Details
DE1905008A1 Identification system Expired / Lapsed 1969-02-01 — 0 Details
DE1549930A1 Device for reading handwritten characters Expired / Lapsed 1967-10-30 — 0 Details
US7089536B2 Computer system and method for aiding log base debugging Expired / Lapsed 2001-05-31 2006-08-08 24 Details
US6983108B2 Optical switching apparatus and optical transmission appara… Expired / Lapsed 2001-10-18 2006-01-03 47 Details
US6965829B2 On-vehicle electronic apparatus Expired / Lapsed 2003-08-04 2005-11-15 27 Details
US6912327B1 Imagine information describing method, video retrieval meth… Expired / Lapsed 2000-01-28 2005-06-28 62 Details
US6795663B2 Multi-function peripheral and method for controlling the sa… Expired / Lapsed 2002-09-12 2004-09-21 17 Details
US6692841B2 Joined structure of dissimilar metallic materials Expired / Lapsed 2002-10-15 2004-02-17 28 Details
US6683874B1 Router device and label switched path control method using … Expired / Lapsed 1999-10-29 2004-01-27 23 Details
US6643258B1 Communication resource management method and node device us… Expired / Lapsed 1998-10-22 2003-11-04 8 Details
US6639893B1 Communication network system including ring network that pe… Expired / Lapsed 1999-03-29 2003-10-28 50 Details
US6633759B1 Communication system, and mobile communication device, port… Expired / Lapsed 2000-09-01 2003-10-14 30 Details
US6598080B1 Network interconnection apparatus network node apparatus an… Expired / Lapsed 1999-12-27 2003-07-22 5 Details
US6594463B2 Image forming apparatus and method with intermediate transf… Expired / Lapsed 2001-08-23 2003-07-15 38 Details
US6580870B1 Systems and methods for reproducing audiovisual information… Expired / Lapsed 1998-11-27 2003-06-17 36 Details
US6570837B1 Information recording medium including playback interrupt i… Expired / Lapsed 2000-07-21 2003-05-27 8 Details
US6565763B1 Method for manufacturing porous structure and method for fo… Expired / Lapsed 2000-06-07 2003-05-20 12 Details
US6541157B1 Nonaqueous electrolyte battery having large capacity and lo… Expired / Lapsed 2000-08-09 2003-04-01 21 Details
US6539416B1 Managing system and managing method of mobile agent Expired / Lapsed 1998-12-17 2003-03-25 28 Details
US6529958B1 Label switched path set up scheme with reduced need for lab… Expired / Lapsed 1999-07-16 2003-03-04 27 Details
US6515974B1 Mobile computer communication scheme supporting moving amon… Expired / Lapsed 1999-06-16 2003-02-04 14 Details
US6501756B1 Method of managing hop-count in label switching network and… Expired / Lapsed 1999-06-29 2002-12-31 16 Details
US6501760B1 Node device and packet transfer method using priority infor… Expired / Lapsed 1998-11-18 2002-12-31 35 Details
US6501754B1 Scheme for label switched path loop detection at node device Expired / Lapsed 1998-08-07 2002-12-31 16 Details
US6490622B1 Node device and scheme for sharing common virtual connectio… Expired / Lapsed 1998-03-11 2002-12-03 31 Details
US6477563B1 Agent system and information processing method for same Expired / Lapsed 1999-04-12 2002-11-05 22 Details
US6471126B2 Method and apparatus for reading invisible symbol Expired / Lapsed 2001-01-02 2002-10-29 24 Details
US6473411B1 Router device, datagram transfer method and communication s… Expired / Lapsed 1998-05-12 2002-10-29 8 Details
US6452632B1 Solid state image sensor and video system using the same Expired / Lapsed 1998-01-30 2002-09-17 15 Details
US6384868B1 Multi-screen display apparatus and video switching processi… Expired / Lapsed 1998-07-09 2002-05-07 20 Details
EP0793387B1 Tv mail system Expired / Lapsed 1997-02-28 2002-05-02 16 Details
US6370587B1 Network interconnection device Expired / Lapsed 1999-01-22 2002-04-09 22 Details
US6349321B1 Data processing system and scheduling method Expired / Lapsed 1998-04-29 2002-02-19 16 Details
US6345308B1 Network computer system and method for executing data synch… Expired / Lapsed 1999-02-26 2002-02-05 8 Details
US6341127B1 Node device and method for controlling label switching path… Expired / Lapsed 1998-07-13 2002-01-22 39 Details
US6339746B1 Route guidance system and method for a pedestrian Expired / Lapsed 2000-08-30 2002-01-15 37 Details
US6335985B1 Object extraction apparatus Expired / Lapsed 1998-12-30 2002-01-01 44 Details
US6310929B1 In-core fixed nuclear instrumentation system and power dist… Expired / Lapsed 1999-08-25 2001-10-30 7 Details
US6304577B1 Node apparatus and method of using a virtual connection to … Expired / Lapsed 1997-07-21 2001-10-16 32 Details
US6297797B1 Computer system and closed caption display method Expired / Lapsed 1998-10-21 2001-10-02 18 Details
US6292514B1 Video encoding apparatus and video decoding apparatus Expired / Lapsed 2000-08-08 2001-09-18 4 Details
US6287482B1 Semiconductor device Expired / Lapsed 2000-02-10 2001-09-11 14 Details
US6288702B1 Information device having enlargement display function and … Expired / Lapsed 1997-09-26 2001-09-11 33 Details
US6289105B1 Method and apparatus for encrypting and transferring electr… Expired / Lapsed 1996-07-26 2001-09-11 18 Details
US6285407B1 Multi-function TV receiver Expired / Lapsed 1998-02-27 2001-09-04 4 Details
US6272148B1 Scheme for reliable communications via radio and wire netwo… Expired / Lapsed 1998-09-22 2001-08-07 26 Details
US6272470B1 Electronic clinical recording system Expired / Lapsed 1997-09-03 2001-08-07 30 Details
US6269371B1 Computer system, and file resources switching method applie… Expired / Lapsed 1998-09-18 2001-07-31 25 Details
US6262986B1 Method and apparatus for packet scheduling using queue leng… Expired / Lapsed 1996-07-08 2001-07-17 50 Details
US6259858B1 Optical disc for storing moving pictures with text informat… Expired / Lapsed 1999-12-15 2001-07-10 33 Details
US6249905B1 Computerized accounting system implemented in an object-ori… Expired / Lapsed 1998-01-16 2001-06-19 32 Details
US6243755B1 Information processing system using information caching bas… Expired / Lapsed 1998-07-15 2001-06-05 23 Details
US6240022B1 Non-volatile semiconductor memory device with block erase f… Expired / Lapsed 1998-04-06 2001-05-29 39 Details
US6240514B1 Packet processing device and mobile computer with reduced p… Expired / Lapsed 1997-10-20 2001-05-29 28 Details
US6230279B1 System and method for dynamically controlling processing sp… Expired / Lapsed 2000-05-03 2001-05-08 23 Details
US6230064B1 Apparatus and a method for analyzing time series data for a… Expired / Lapsed 1998-06-29 2001-05-08 34 Details
US6223286B1 Multicast message transmission device and message receiving… Expired / Lapsed 1997-03-18 2001-04-24 31 Details
US6219043B1 Method and system to replace sections of an encoded video b… Expired / Lapsed 2000-02-15 2001-04-17 10 Details
US6212680B1 Multi-channel electronic programming guide and soft picture… Expired / Lapsed 1998-03-04 2001-04-03 3 Details
US6208619B1 Packet data flow control method and device Expired / Lapsed 1998-03-26 2001-03-27 23 Details
US6208360B1 Method and apparatus for graffiti animation Expired / Lapsed 1998-03-09 2001-03-27 92 Details
US6197399B1 Recording medium and method of manufacturing the same Expired / Lapsed 1999-03-11 2001-03-06 14 Details
US6196715B1 X-ray diagnostic system preferable to two dimensional x-ray… Expired / Lapsed 1998-04-27 2001-03-06 28 Details
US6195704B1 Methods and systems for a loop-type network using a spare c… Expired / Lapsed 1997-11-12 2001-02-27 8 Details
US6195432B1 Software distribution system and software utilization schem… Expired / Lapsed 1997-03-10 2001-02-27 25 Details
JP3135248B2 Ultrasound therapy equipment Expired / Lapsed 1990-07-23 2001-02-13 0 Details
US6185563B1 Document management method and apparatus for ensuring consi… Expired / Lapsed 1998-07-21 2001-02-06 4 Details
US6185702B1 Method and system for process state management using checkp… Expired / Lapsed 1998-01-23 2001-02-06 15 Details
US6185213B1 Packet transfer control method and node device using plural… Expired / Lapsed 1997-10-29 2001-02-06 16 Details
US6182099B1 Multiple language computer-interface input system Expired / Lapsed 1998-02-26 2001-01-30 6 Details
US6178273B1 Image forming apparatus for storing document image in memor… Expired / Lapsed 1997-09-22 2001-01-23 10 Details
US6175918B1 Client computer, initialization processing method applied t… Expired / Lapsed 1998-08-05 2001-01-16 50 Details
US6170057B1 Mobile computer and method of packet encryption and authent… Expired / Lapsed 1997-10-16 2001-01-02 33 Details
US6118888A Multi-modal interface apparatus and method Expired / Lapsed 1998-02-25 2000-09-12 35 Details
US6097138A Field emission cold-cathode device Expired / Lapsed 1997-09-18 2000-08-01 23 Details
US6098061A Computer system for interactive help using human-understand… Expired / Lapsed 1997-03-13 2000-08-01 36 Details
US6081901A System and method for dynamically controlling processing sp… Expired / Lapsed 1998-05-07 2000-06-27 32 Details
JP3011422B2 Waveform equalizer and waveform equalization method Expired / Lapsed 1989-09-30 2000-02-21 0 Details
US5987475A Apparatus and method for processing hypertext and recording… Expired / Lapsed 1997-09-16 1999-11-16 24 Details
EP0505985B1 High efficiency coding recording and reproducing apparatus Expired / Lapsed 1992-03-24 1999-01-27 1 Details
US5826236A Method for allocating resources and processes for design an… Expired / Lapsed 1995-12-08 1998-10-20 28 Details
US5807256A Medical information processing system for supporting diagno… Expired / Lapsed 1997-01-02 1998-09-15 5 Details
US5804804A Device for supplying and receiving medium between a plurali… Expired / Lapsed 1996-04-17 1998-09-08 16 Details
US5796579A Portable electronic apparatus having expansion connector co… Expired / Lapsed 1997-02-07 1998-08-18 4 Details
USD396452S Portable character and image processing apparatus Expired / Lapsed 1997-07-29 1998-07-28 1 Details
US5779634A Medical information processing system for supporting diagno… Expired / Lapsed 1994-09-30 1998-07-14 57 Details
USD392947S Electronic computer Expired / Lapsed 1997-02-03 1998-03-31 1 Details
USD389463S Information input/output managing machine equipped with a t… Expired / Lapsed 1996-11-26 1998-01-20 1 Details
US5694936A Ultrasonic apparatus for thermotherapy with variable freque… Expired / Lapsed 1995-09-14 1997-12-09 25 Details
US5677735A Motion picture coding apparatus Expired / Lapsed 1995-01-19 1997-10-14 13 Details
US5644193A Phosphor, cathode-ray tube, fluorescent lamp and radiation … Expired / Lapsed 1994-12-16 1997-07-01 12 Details
EP0482773B1 Communication control system using an asynchronous transfer… Expired / Lapsed 1991-09-27 1997-01-08 3 Details
US5583474A Planar magnetic element Expired / Lapsed 1994-05-25 1996-12-10 21 Details
US5528631A π/4 shifted DQPSK modulator Expired / Lapsed 1994-02-23 1996-06-18 5 Details
US5491496A Display control device for use with flat-panel display and … Expired / Lapsed 1994-05-02 1996-02-13 11 Details
US5489867A Display data driving integrated circuit Expired / Lapsed 1994-06-21 1996-02-06 9 Details
US4509148B1 Semiconductor memory device Expired / Lapsed 1983-05-11 1996-01-02 0 Details
US5469849A Ultrasound diagnosis apparatus Expired / Lapsed 1994-06-14 1995-11-28 30 Details
US5456258A Catheter type ultrasound probe Expired / Lapsed 1994-12-20 1995-10-10 5 Details
US5457801A Power saving system Expired / Lapsed 1994-11-18 1995-10-10 18 Details
US5456255A Ultrasonic diagnosis apparatus Expired / Lapsed 1994-07-11 1995-10-10 48 Details
US5450850A System for examining cardiac function Expired / Lapsed 1994-11-07 1995-09-19 27 Details
EP0400959B1 Broadband information communications network system with co… Expired / Lapsed 1990-05-29 1995-08-23 11 Details
USD361552S Electronic computer Expired / Lapsed 1994-06-28 1995-08-22 1 Details
US5444654A ROM with Bi-CMOS gate arrays Expired / Lapsed 1994-02-24 1995-08-22 9 Details
US5437276A Apparatus for measuring magnetic sources Expired / Lapsed 1993-07-23 1995-08-01 30 Details
US5436665A Motion picture coding apparatus Expired / Lapsed 1993-11-19 1995-07-25 8 Details
US5428618A Debugger apparatus and method having an event history recor… Expired / Lapsed 1994-01-27 1995-06-27 16 Details
USD359034S Unit for extending the function of an electronic computer Expired / Lapsed 1994-01-12 1995-06-06 1 Details
USD358144S Electronic computer stand Expired / Lapsed 1993-06-04 1995-05-09 1 Details
USD355184S Portable radio telephone Expired / Lapsed 1993-12-21 1995-02-07 1 Details
USD355182S Portable radio telephone Expired / Lapsed 1992-09-15 1995-02-07 1 Details
US5363410A Modulation circuit for a digital radio communications appar… Expired / Lapsed 1992-05-26 1994-11-08 5 Details
US5358466A Apparatus for destroying a calculus Expired / Lapsed 1992-04-15 1994-10-25 4 Details
US5348013A Ultrasonic diagnostic apparatus capable of acquiring high q… Expired / Lapsed 1991-08-28 1994-09-20 29 Details
US5345938A Diagnostic apparatus for circulatory systems Expired / Lapsed 1992-09-28 1994-09-13 13 Details
US5331436A Encoder and decoder Expired / Lapsed 1993-09-29 1994-07-19 6 Details
USD346793S Electronic computer Expired / Lapsed 1992-09-30 1994-05-10 1 Details
USD346382S Portable radio telephone Expired / Lapsed 1992-09-15 1994-04-26 1 Details
USD345555S Portable radio telephone Expired / Lapsed 1992-09-15 1994-03-29 1 Details
USD345355S Portable radio telephone Expired / Lapsed 1992-09-15 1994-03-22 1 Details
USD345158S Portable radio telephone Expired / Lapsed 1992-09-15 1994-03-15 1 Details
USD345157S Portable radio telephone Expired / Lapsed 1992-09-15 1994-03-15 1 Details
US5285284A Television receiver with a dual tuner system Expired / Lapsed 1992-11-09 1994-02-08 9 Details
USD342487S Expansion unit for increasing the functions of an electroni… Expired / Lapsed 1992-02-28 1993-12-21 1 Details
USD342070S Remote controller for a video tape recorder Expired / Lapsed 1992-12-07 1993-12-07 1 Details
USD342060S Magnetic memory unit for the extension of electronic comput… Expired / Lapsed 1992-09-24 1993-12-07 1 Details
USD342069S Mobile telephone set Expired / Lapsed 1992-06-17 1993-12-07 1 Details
US5266756A Control apparatus for hydraulic elevators using fuzzy logic… Expired / Lapsed 1991-03-07 1993-11-30 3 Details
US5253201A Writing control circuit employed in non-volatile semiconduc… Expired / Lapsed 1992-07-24 1993-10-12 15 Details
US5243418A Display monitoring system for detecting and tracking an int… Expired / Lapsed 1991-11-27 1993-09-07 16 Details
USD337096S Electronic computer Expired / Lapsed 1991-04-15 1993-07-06 1 Details
US5204629A Automatic aligning mechanism for nuclear magnetic resonance… Expired / Lapsed 1990-12-03 1993-04-20 13 Details
US5203020A Method and apparatus for reducing power consumption in a ra… Expired / Lapsed 1991-10-02 1993-04-13 13 Details
US5200994A Communication terminal apparatus and control method with pa… Expired / Lapsed 1989-08-02 1993-04-06 22 Details
US4883980B1 US4883980B1 - - Google Patents Expired / Lapsed 1988-08-26 1993-02-23 0 Details
US5186175A Ultrasonic diagnostic apparatus Expired / Lapsed 1991-07-10 1993-02-16 14 Details
USD331920S Magnetic memory expansion unit for increasing the functions… Expired / Lapsed 1990-07-27 1992-12-22 1 Details
US5170793A Ultrasonic probe Expired / Lapsed 1991-02-07 1992-12-15 22 Details
USD331393S Electronic computer Expired / Lapsed 1989-10-02 1992-12-01 1 Details
US5163436A Ultrasonic probe system Expired / Lapsed 1991-03-21 1992-11-17 19 Details
USD330197S Electronic computer Expired / Lapsed 1990-02-13 1992-10-13 1 Details
USD330194S Electronic computer Expired / Lapsed 1989-12-06 1992-10-13 1 Details
US5140518A Method and apparatus for processing data in medical informa… Expired / Lapsed 1991-07-23 1992-08-18 15 Details
USD328592S Electronic computer Expired / Lapsed 1990-02-13 1992-08-11 1 Details
USD328455S Electronic computer Expired / Lapsed 1990-02-13 1992-08-04 1 Details
US5119337A Semiconductor memory device having burn-in test function Expired / Lapsed 1990-04-16 1992-06-02 12 Details
US5115809A Ultrasonic probe Expired / Lapsed 1990-03-29 1992-05-26 13 Details
US5115306A Projection crt with a green emitting terbium activated lant… Expired / Lapsed 1986-05-29 1992-05-19 5 Details
US5111804A Electronic endoscope Expired / Lapsed 1990-02-13 1992-05-12 20 Details
US5105817A Ultrasonic bloodstream imaging apparatus Expired / Lapsed 1989-06-06 1992-04-21 7 Details
US5105335A Hard case for housing and carrying electronic devices Expired / Lapsed 1990-09-21 1992-04-14 20 Details
US5103305A Moving object detecting system Expired / Lapsed 1990-09-26 1992-04-07 16 Details
USD324673S Electronic computer Expired / Lapsed 1990-01-05 1992-03-17 1 Details
USD324674S Electronic computer Expired / Lapsed 1990-01-05 1992-03-17 1 Details
US5095461A Erase circuitry for a non-volatile semiconductor memory dev… Expired / Lapsed 1989-12-27 1992-03-10 45 Details
US5090414A Intracavitary ultrasound probe Expired / Lapsed 1989-08-21 1992-02-25 12 Details
US5090433A Compact endoscope cleaning apparatus Expired / Lapsed 1989-01-30 1992-02-25 5 Details
US5088495A Mechanical ultrasonic scanner Expired / Lapsed 1990-01-31 1992-02-18 29 Details
USD324035S Electronic computer Expired / Lapsed 1989-12-06 1992-02-18 1 Details
USD324036S Combined electronic computer and telephone Expired / Lapsed 1989-12-06 1992-02-18 1 Details
US5083290A Lunch box type electronic apparatus Expired / Lapsed 1991-06-20 1992-01-21 14 Details
US5083266A Microcomputer which enters sleep mode for a predetermined p… Expired / Lapsed 1987-12-24 1992-01-21 19 Details
USD323156S Combined electronic computer and video telephone Expired / Lapsed 1989-12-06 1992-01-14 1 Details
US5078141A Method and system for acquiring image representing brain su… Expired / Lapsed 1991-05-03 1992-01-07 18 Details
US5065435A Method and apparatus for analyzing ventricular function Expired / Lapsed 1989-11-14 1991-11-12 18 Details
US5060515A Image signal processing circuit for ultrasonic imaging appa… Expired / Lapsed 1990-03-01 1991-10-29 21 Details
US5049863A Cursor key unit for a computer having a mouse function remo… Expired / Lapsed 1990-02-09 1991-09-17 21 Details
US5050125A Electrically erasable programmable read-only memory with NA… Expired / Lapsed 1988-11-17 1991-09-17 7 Details
US5047916A Method and apparatus of free space enumeration for collisio… Expired / Lapsed 1989-03-24 1991-09-10 90 Details
US5045935A Electronic endoscope system including image processing unit… Expired / Lapsed 1990-04-09 1991-09-03 13 Details
US5042915A Light source apparatus for an endoscope Expired / Lapsed 1988-01-25 1991-08-27 9 Details
USD319234S Portable radiotelephone Expired / Lapsed 1990-05-25 1991-08-20 1 Details
US5035633A Data-processing apparatus in which a card-shaped recording … Expired / Lapsed 1990-02-23 1991-07-30 13 Details
US5033111A Radio telecommunication apparatus Expired / Lapsed 1989-02-28 1991-07-16 19 Details
US5022382A Endoscope Expired / Lapsed 1989-05-23 1991-06-11 7 Details
USD316714S Television receiver Expired / Lapsed 1989-06-20 1991-05-07 1 Details
US5005558A Endoscope Expired / Lapsed 1989-05-16 1991-04-09 21 Details
EP0166541B1 Communications network using an enciphering and deciphering… Expired / Lapsed 1985-05-30 1991-03-20 10 Details
US4999813A Nonvolatile semiconductor memory having a stress test circu… Expired / Lapsed 1989-04-20 1991-03-12 13 Details
US4996975A Electronic endoscope apparatus capable of warning lifetime … Expired / Lapsed 1990-06-01 1991-03-05 24 Details
US4998291A Radio telephone apparatus Expired / Lapsed 1988-11-23 1991-03-05 36 Details
US4996600A Two dimensional solid state image sensing device Expired / Lapsed 1989-06-08 1991-02-26 18 Details
USD314558S Electronic computer Expired / Lapsed 1988-08-22 1991-02-12 1 Details
US4990867A Modulator Expired / Lapsed 1990-05-10 1991-02-05 6 Details
US4990902A Display area control system for flat panel display device Expired / Lapsed 1988-06-17 1991-02-05 12 Details
US4982149A Electric supply apparatus having means for correcting suppl… Expired / Lapsed 1990-01-09 1991-01-01 7 Details
US4982397A Apparatus for focusing a light beam onto an information mem… Expired / Lapsed 1988-11-29 1991-01-01 11 Details
US4980678A Display controller for CRT/flat panel display apparatus Expired / Lapsed 1988-06-17 1990-12-25 21 Details
US4976191A Elastically deformable fluid actuator Expired / Lapsed 1989-10-17 1990-12-11 50 Details
US4975381A Method of manufacturing super self-alignment technology bip… Expired / Lapsed 1990-03-12 1990-12-04 8 Details
USD312249S Electronic computer Expired / Lapsed 1987-10-13 1990-11-20 1 Details
USD312083S Digital audio disc player Expired / Lapsed 1988-05-27 1990-11-13 1 Details
USD311906S Electronic computer Expired / Lapsed 1988-10-06 1990-11-06 1 Details
US4969181A Loudspeaker apparatus and method for a radio telephone appa… Expired / Lapsed 1987-07-08 1990-11-06 25 Details
US4967288A Facsimile storage and exchange system Expired / Lapsed 1988-04-29 1990-10-30 21 Details
USD311528S Electronic computer Expired / Lapsed 1987-08-03 1990-10-23 1 Details
US4959631A Planar inductor Expired / Lapsed 1988-09-28 1990-09-25 5 Details
US4958307A Roll mark inspection apparatus Expired / Lapsed 1988-11-18 1990-09-18 26 Details
US4958327A Ultrasonic imaging apparatus Expired / Lapsed 1988-08-31 1990-09-18 16 Details
USD310667S Combined tape player and tuner Expired / Lapsed 1988-03-11 1990-09-18 1 Details
USD310527S Combined tape player and tuner Expired / Lapsed 1988-04-26 1990-09-11 1 Details
USD310526S Combined tape player and tuner Expired / Lapsed 1988-03-07 1990-09-11 1 Details
US4954945A Processor-selection system Expired / Lapsed 1987-03-05 1990-09-04 4 Details
DE3744841C2 DE3744841C2 - - Google Patents Expired / Lapsed 1987-09-28 1990-08-23 0 Details
US4948330A Alignment stage device Expired / Lapsed 1989-02-03 1990-08-14 16 Details
USD309729S Data entry terminal Expired / Lapsed 1988-08-26 1990-08-07 1 Details
USD308367S Pocket television receiver Expired / Lapsed 1988-06-22 1990-06-05 1 Details
US4924290A Semiconductor device having improved multilayered wirings Expired / Lapsed 1988-08-30 1990-05-08 28 Details
US4918646A Information retrieval apparatus Expired / Lapsed 1987-08-21 1990-04-17 21 Details
US4915115A Ultrasonic imaging apparatus for displaying B-mode and Dopp… Expired / Lapsed 1987-01-27 1990-04-10 9 Details
US4907183A Battery powered computer system wherein a power supply is s… Expired / Lapsed 1988-03-24 1990-03-06 10 Details
US4896674A Ultrasonic diagnosing system Expired / Lapsed 1988-10-11 1990-01-30 13 Details
US4891992A Torque detecting apparatus Expired / Lapsed 1989-01-25 1990-01-09 18 Details
US4893232A Data management system for efficiently searching data eleme… Expired / Lapsed 1988-08-19 1990-01-09 27 Details
USD305329S Image scanner Expired / Lapsed 1988-01-28 1990-01-02 1 Details
USD305231S Portable handset radio telephone Expired / Lapsed 1988-09-22 1989-12-26 1 Details
US4884934A Junction bolt with adjustable clamping force Expired / Lapsed 1987-09-25 1989-12-05 23 Details
US4883980A Semiconductor IC (integrated circuit) device Expired / Lapsed 1988-08-26 1989-11-28 6 Details
US4881029A Semiconductor integrated circuit devices and methods for te… Expired / Lapsed 1986-09-26 1989-11-14 18 Details
US4875485A Magnetic resonance system Expired / Lapsed 1988-04-19 1989-10-24 12 Details
USD304188S Portable handset radio telephone Expired / Lapsed 1988-03-24 1989-10-24 1 Details
US4873985A Ultrasonic imaging apparatus utilizing doppler flow metering Expired / Lapsed 1988-01-04 1989-10-17 11 Details
US4872123A Commutation compensation device for a DC machine Expired / Lapsed 1988-02-16 1989-10-03 17 Details
US4868773A Digital filtering by threshold decomposition Expired / Lapsed 1987-10-22 1989-09-19 16 Details
US4867169A Attachment attached to ultrasound probe for clinical applic… Expired / Lapsed 1987-07-07 1989-09-19 8 Details
US4863882A Rare earth oxysulfide ceramics Expired / Lapsed 1988-03-15 1989-09-05 4 Details
US4858129A X-ray CT apparatus Expired / Lapsed 1987-09-22 1989-08-15 10 Details
US4847809A Image memory having standard dynamic RAM chips Expired / Lapsed 1986-07-09 1989-07-11 20 Details
US4844052A Apparatus for transmitting liquid and gas in an endoscope Expired / Lapsed 1988-03-11 1989-07-04 5 Details
US4837628A Electronic still camera for recording still picture on memo… Expired / Lapsed 1987-07-14 1989-06-06 11 Details
US4834071A Illuminance controller for light source and endoscope inclu… Expired / Lapsed 1988-07-13 1989-05-30 17 Details
US4835450A Method and system for controlling robot for constructing pr… Expired / Lapsed 1988-05-19 1989-05-30 9 Details
US4830015A Method and system for measuring an ultrasound tissue charac… Expired / Lapsed 1987-09-09 1989-05-16 23 Details
US4819210A Optical information writing method Expired / Lapsed 1988-06-06 1989-04-04 40 Details
US4819212A Nonvolatile semiconductor memory device with readout test c… Expired / Lapsed 1987-05-18 1989-04-04 20 Details
US4817050A Database system Expired / Lapsed 1986-11-21 1989-03-28 24 Details
US4814591A Portable medium Expired / Lapsed 1988-03-30 1989-03-21 24 Details
USD300217S Telephone set Expired / Lapsed 1987-10-19 1989-03-14 1 Details
US4807634A Mechanical type ultrasonic scanner Expired / Lapsed 1987-02-03 1989-02-28 9 Details
US4803375A Image sensors and methods of manufacturing same including s… Expired / Lapsed 1986-12-12 1989-02-07 31 Details
US4803529A Electrically erasable and electrically programmable read on… Expired / Lapsed 1981-11-13 1989-02-07 31 Details
US4802201A Control system of a radio telephone apparatus Expired / Lapsed 1986-09-29 1989-01-31 19 Details
US4802200A Radio telephone system control apparatus and method Expired / Lapsed 1986-08-26 1989-01-31 42 Details
US4802239A Switch distributing apparatus for community reception Expired / Lapsed 1986-07-09 1989-01-31 5 Details
US4799195A Semiconductor memory device with a sense amplifier Expired / Lapsed 1988-03-04 1989-01-17 7 Details
US4797009A Dynamic pressure air bearing Expired / Lapsed 1987-09-28 1989-01-10 22 Details
USD299031S Electronic computer Expired / Lapsed 1986-06-27 1988-12-20 1 Details
US4787394A Ultrasound therapy apparatus Expired / Lapsed 1987-04-23 1988-11-29 7 Details
US4787070A Coupler for ultrasonic transducer probe Expired / Lapsed 1987-06-29 1988-11-22 5 Details
US4783646A Stolen article detection tag sheet, and method for manufact… Expired / Lapsed 1987-03-04 1988-11-08 18 Details
US4779623A System for measuring sound velocity of tissue in an object … Expired / Lapsed 1986-08-08 1988-10-25 25 Details
US4779947A Optical-fiber coupling device Expired / Lapsed 1984-12-24 1988-10-25 23 Details
US4774957A Material for diagnosis by nuclear magnetic resonance imaging Expired / Lapsed 1987-09-11 1988-10-04 21 Details
USD297435S Electronic copying machine Expired / Lapsed 1985-12-09 1988-08-30 1 Details
US4764912A Optical focusing in magneto-optic disk system Expired / Lapsed 1986-10-06 1988-08-16 16 Details
US4755980A Optical disk and recording/reproducing device for optical d… Expired / Lapsed 1986-02-18 1988-07-05 10 Details
US4754319A IC card and method for manufacturing the same Expired / Lapsed 1987-09-11 1988-06-28 10 Details
US4752424A Method of manufacturing a rare earth oxysulfide ceramic Expired / Lapsed 1987-01-20 1988-06-21 6 Details
USD296334S Electronic copying machine Expired / Lapsed 1985-10-31 1988-06-21 1 Details
US4743966A Endoscope apparatus for imaging internal portions of a pati… Expired / Lapsed 1987-01-08 1988-05-10 13 Details
US4742277A Pulse generating apparatus for xenon lamp and lighting meth… Expired / Lapsed 1987-07-29 1988-05-03 8 Details
USD295412S Optical character reader for an electronic computer Expired / Lapsed 1986-10-14 1988-04-26 1 Details
USD295174S Cable television converter Expired / Lapsed 1985-06-07 1988-04-12 1 Details
US4736461A Method of transmitting terminating call signals within a re… Expired / Lapsed 1987-02-12 1988-04-05 2 Details
US4734898A Autochanger type disc player Expired / Lapsed 1985-06-14 1988-03-29 18 Details
US4733387A Disc loading/unloading apparatus Expired / Lapsed 1986-09-10 1988-03-22 17 Details
US4733082A Gamma ray camera methods and apparatus employing cooled sci… Expired / Lapsed 1986-05-22 1988-03-22 8 Details
US4729082A Control device for power converter Expired / Lapsed 1986-11-20 1988-03-01 9 Details
US4729018A Endoscope apparatus with rotating shutter Expired / Lapsed 1986-09-19 1988-03-01 17 Details
US4725942A Controller for multidegree of freedom nonlinear mechanical … Expired / Lapsed 1986-01-23 1988-02-16 25 Details
EP0051228B1 Document information filing system Expired / Lapsed 1981-10-23 1988-01-13 13 Details
US4718416A Laser treatment apparatus Expired / Lapsed 1985-01-11 1988-01-12 11 Details
USD293576S Image scanner for electronic copying machine Expired / Lapsed 1985-10-31 1988-01-05 1 Details
US4716456A CCD Color image sensor with a light source having a spectru… Expired / Lapsed 1986-09-22 1987-12-29 25 Details
US4716452A Semiconductor integrated circuit device constructed by poly… Expired / Lapsed 1985-11-08 1987-12-29 30 Details
USD293437S Operation machine console for telephone information Expired / Lapsed 1985-06-07 1987-12-29 1 Details
US4710804A Color filter arrays for use in a single chip color televisi… Expired / Lapsed 1987-02-09 1987-12-01 10 Details
US4709264A Picture processing apparatus Expired / Lapsed 1986-10-01 1987-11-24 20 Details
USD292289S Electronic computer Expired / Lapsed 1985-01-04 1987-10-13 1 Details
US4697902A Device for containing a radiation recording medium Expired / Lapsed 1986-02-19 1987-10-06 21 Details
USD291564S Combination handset and stand mobile telephone unit Expired / Lapsed 1986-01-29 1987-08-25 1 Details
US4689670A Method and apparatus for measuring a biological function of… Expired / Lapsed 1985-01-22 1987-08-25 20 Details
US4688070A Semiconductor integrated circuit device Expired / Lapsed 1984-05-23 1987-08-18 36 Details
US4682321A Optical recording medium Expired / Lapsed 1985-01-24 1987-07-21 11 Details
US4680720A Dot interpolation control system Expired / Lapsed 1984-10-15 1987-07-14 20 Details
US4679244A Method of transmitting terminating call signals within a re… Expired / Lapsed 1985-02-26 1987-07-07 6 Details
US4677592A Dynamic RAM Expired / Lapsed 1985-05-30 1987-06-30 4 Details
US4664122A Ultrasonic transducer array used in ultrasonic diagnosis ap… Expired / Lapsed 1985-07-24 1987-05-12 4 Details
US4663535A Color image sensor Expired / Lapsed 1985-05-22 1987-05-05 14 Details
US4660998A Dot-matrix printer with font cartridge unit Expired / Lapsed 1985-08-30 1987-04-28 7 Details
US4660999A Dot-matrix printer with font cartridge unit Expired / Lapsed 1985-08-30 1987-04-28 13 Details
US4661950A Information transmission system in a local area network sui… Expired / Lapsed 1985-08-26 1987-04-28 17 Details
US4653505A System and method for measuring sound velocity of tissue in… Expired / Lapsed 1985-05-24 1987-03-31 18 Details
US4653000A Image signal-processing system based on synthetic aperture … Expired / Lapsed 1984-08-31 1987-03-24 7 Details
US4653021A Data management apparatus Expired / Lapsed 1984-06-15 1987-03-24 8 Details
US4647947A Optical protuberant bubble recording medium Expired / Lapsed 1985-09-13 1987-03-03 19 Details
US4644205A Positioning device of magnetic suspension type Expired / Lapsed 1985-09-26 1987-02-17 13 Details
US4633883A Ultrasonic diagnostic equipment Expired / Lapsed 1985-02-08 1987-01-06 9 Details
US4635293A Image processing system Expired / Lapsed 1985-01-30 1987-01-06 13 Details
US4633307A Digital subtraction fluorographic method and apparatus Expired / Lapsed 1985-09-05 1986-12-30 8 Details
US4620546A Ultrasound hyperthermia apparatus Expired / Lapsed 1985-06-27 1986-11-04 16 Details
US4621331A Control system for grasping force of a manipulator for gras… Expired / Lapsed 1983-12-28 1986-11-04 9 Details
US4621318A Multiprocessor system having mutual exclusion control funct… Expired / Lapsed 1983-02-01 1986-11-04 5 Details
USD286290S Season ticket issuing machine Expired / Lapsed 1983-07-01 1986-10-21 1 Details
USD286048S Reader for image information storing/retrieving machine Expired / Lapsed 1984-05-24 1986-10-07 1 Details
USD286042S Telephone Expired / Lapsed 1982-05-03 1986-10-07 1 Details
USD285923S Arithmetic operation control machine for electronic compute… Expired / Lapsed 1984-03-07 1986-09-30 1 Details
US4611494A Ultrasonic imaging apparatus using digital control Expired / Lapsed 1984-11-08 1986-09-16 5 Details
USD285555S Telephone for automobiles Expired / Lapsed 1984-03-07 1986-09-09 1 Details
US4608485A Automatic transfer transaction processing apparatus Expired / Lapsed 1984-07-25 1986-08-26 7 Details
US4601003A Document rearrangement system Expired / Lapsed 1983-11-22 1986-07-15 21 Details
US4595601A Method of selectively forming an insulation layer Expired / Lapsed 1985-05-20 1986-06-17 22 Details
US4586160A Method and apparatus for analyzing the syntactic structure … Expired / Lapsed 1983-04-05 1986-04-29 11 Details
US4584712A Interference signal supressor system Expired / Lapsed 1984-11-08 1986-04-22 6 Details
US4583552A Apparatus for observing blood flow patterns Expired / Lapsed 1984-08-21 1986-04-22 9 Details
US4575181A Optical fiber assembly with cladding light scattering means Expired / Lapsed 1983-04-26 1986-03-11 10 Details
US4573191A Stereoscopic vision system Expired / Lapsed 1984-03-29 1986-02-25 10 Details
US4568880A Diagnostic apparatus for utilizing nuclear magnetic resonan… Expired / Lapsed 1983-08-25 1986-02-04 8 Details
US4567584A Autochanger type disc player Expired / Lapsed 1984-06-08 1986-01-28 14 Details
US4566127A Complex system having the functions of optical character re… Expired / Lapsed 1982-08-30 1986-01-21 2 Details
US4562464A X-Ray diagnostic apparatus Expired / Lapsed 1982-12-22 1985-12-31 7 Details
US4559693A Process for fabricating field effect transistors Expired / Lapsed 1984-08-07 1985-12-24 4 Details
US4558709A Gas introducing apparatus for respiratory gas analyzer Expired / Lapsed 1983-10-25 1985-12-17 11 Details
US4558178A Wireless telephone apparatus including both a telephone han… Expired / Lapsed 1984-01-04 1985-12-10 10 Details
US4558458A Positioning unit for radiation tomography apparatus Expired / Lapsed 1983-12-08 1985-12-10 5 Details
US4555653A Pulse motor driving apparatus Expired / Lapsed 1983-12-01 1985-11-26 3 Details
US4549137A Nuclear magnetic resonance diagnostic apparatus Expired / Lapsed 1983-06-21 1985-10-22 8 Details
US4548210A Probe for ultrasonic-echo planigraphic imaging apparatus Expired / Lapsed 1981-08-05 1985-10-22 4 Details
US4546450A Priority determination circuit Expired / Lapsed 1984-09-20 1985-10-08 6 Details
US4545384A Nuclear magnetic resonance diagnostic apparatus Expired / Lapsed 1984-02-23 1985-10-08 7 Details
US4545251A Electronic scanning type ultrasonic non-destructive testing… Expired / Lapsed 1983-07-08 1985-10-08 15 Details
US4544949A X-Ray diagnostic apparatus and method Expired / Lapsed 1983-03-04 1985-10-01 12 Details
US4542746A Ultrasonic diagnostic apparatus Expired / Lapsed 1983-02-24 1985-09-24 14 Details
US4542485A Semiconductor integrated circuit Expired / Lapsed 1982-01-08 1985-09-17 20 Details
US4539476A Module for a fiber optic link Expired / Lapsed 1984-05-14 1985-09-03 16 Details
US4539453A Control circuit for a microwave oven Expired / Lapsed 1984-04-06 1985-09-03 11 Details
US4537203A Abnormal cell detecting device Expired / Lapsed 1984-06-25 1985-08-27 11 Details
US4538144A Graphic display device having graphic generator for shading… Expired / Lapsed 1982-01-18 1985-08-27 11 Details
US4532199A Method of forming amorphous silicon film Expired / Lapsed 1984-02-27 1985-07-30 6 Details
US4531203A Semiconductor memory device and method for manufacturing th… Expired / Lapsed 1981-11-13 1985-07-23 5 Details
US4526805A Film-fabricating method and apparatus for the same Expired / Lapsed 1983-10-12 1985-07-02 27 Details
US4527263A Eccentricity correction for an optical disk device Expired / Lapsed 1982-07-01 1985-07-02 6 Details
US4523800A Polygonal mirror optical deflector Expired / Lapsed 1983-07-14 1985-06-18 8 Details
US4517017A Temperature sensitive amorphous magnetic alloy Expired / Lapsed 1982-02-08 1985-05-14 8 Details
US4516074A Nuclear magnetic resonance diagnostic apparatus Expired / Lapsed 1982-08-31 1985-05-07 9 Details
US4510422A DC Motor soft-start circuit Expired / Lapsed 1984-02-06 1985-04-09 5 Details
US4509525A Ultrasonic diagnostic equipment Expired / Lapsed 1982-09-23 1985-04-09 9 Details
USD278152S Electronic copying machine Expired / Lapsed 1983-01-19 1985-03-26 1 Details
USD278051S Cassette player Expired / Lapsed 1984-06-20 1985-03-19 1 Details
US4506342A Document information filing system Expired / Lapsed 1981-11-02 1985-03-19 10 Details
US4501277A Selected beam marking system for rapid ultrasound measureme… Expired / Lapsed 1982-09-28 1985-02-26 13 Details
US4501279A Ultrasonic blood flow sensing apparatus Expired / Lapsed 1982-09-14 1985-02-26 8 Details
US4500905A Stacked semiconductor device with sloping sides Expired / Lapsed 1982-09-28 1985-02-19 4 Details
USD277189S Memory unit cartridge for electronic computers Expired / Lapsed 1982-03-15 1985-01-15 1 Details
US4494219A Nonvolatile read only memory device Expired / Lapsed 1982-01-29 1985-01-15 13 Details
US4491137A Adaptor for ultrasonic transducer probe Expired / Lapsed 1983-08-10 1985-01-01 11 Details
US4489730A Ultrasonic transducer probe Expired / Lapsed 1983-07-06 1984-12-25 13 Details
USD276808S Telephone for automobiles Expired / Lapsed 1982-09-29 1984-12-18 1 Details
US4487073A Ultrasonic system Expired / Lapsed 1983-01-25 1984-12-11 6 Details
USD276521S Radio tuner Expired / Lapsed 1982-05-27 1984-11-27 1 Details
USD276341S Passenger ticket classifying and totalizing machine Expired / Lapsed 1982-09-29 1984-11-13 1 Details
USD276347S Electronic copying machine Expired / Lapsed 1982-09-09 1984-11-13 1 Details
US4480269A Television camera Expired / Lapsed 1983-01-31 1984-10-30 7 Details
US4477832A Solid-state color image pickup device N Expired / Lapsed 1982-05-20 1984-10-16 10 Details
USD275960S Electronic copying machine Expired / Lapsed 1982-04-30 1984-10-16 1 Details
US4477884A Semiconductor memory with improved data programming time Expired / Lapsed 1981-10-13 1984-10-16 14 Details
US4472737A Stereographic tomogram observing apparatus Expired / Lapsed 1982-08-31 1984-09-18 11 Details
USD275009S Keyboard-equipped arithmetic operation control machine for … Expired / Lapsed 1982-03-15 1984-08-07 1 Details
US4460919A Solid-state color television camera device Expired / Lapsed 1982-05-20 1984-07-17 12 Details
US4455740A Method of manufacturing a self-aligned U-MOS semiconductor … Expired / Lapsed 1982-09-29 1984-06-26 16 Details
US4453230A Address conversion system Expired / Lapsed 1982-06-21 1984-06-05 4 Details
US4448201A Digital scan converter Expired / Lapsed 1981-10-26 1984-05-15 10 Details
US4448075A Ultrasonic scanning apparatus Expired / Lapsed 1981-05-06 1984-05-15 11 Details
US4444201A Respiration monitoring apparatus and method Expired / Lapsed 1981-08-19 1984-04-24 14 Details
US4443043A Electric motor unit Expired / Lapsed 1982-08-26 1984-04-17 7 Details
US4437348A Ultrasonic imaging apparatus Expired / Lapsed 1982-06-07 1984-03-20 16 Details
US4437174A Semiconductor memory device Expired / Lapsed 1981-11-13 1984-03-13 7 Details
US4432610A Liquid crystal display device Expired / Lapsed 1981-02-19 1984-02-21 22 Details
US4431473A RIE Apparatus utilizing a shielded magnetron to enhance etc… Expired / Lapsed 1982-07-07 1984-02-14 14 Details
US4428225A Device for measuring the imbalance of an object Expired / Lapsed 1982-02-25 1984-01-31 2 Details
US4425805A Respiration flowmeter Expired / Lapsed 1981-10-29 1984-01-17 8 Details
US4425547A Nuclear magnetic resonance apparatus having means for compe… Expired / Lapsed 1981-06-09 1984-01-10 4 Details
US4424461A Semiconductor integrated circuit providing temperature comp… Expired / Lapsed 1981-02-23 1984-01-03 14 Details
US4423303A Apparatus for treating powdery materials utilizing microwav… Expired / Lapsed 1981-05-05 1983-12-27 10 Details
US4422112A Magnetic recording and reproducing apparatus Expired / Lapsed 1981-06-09 1983-12-20 19 Details
US4422106A Magnetic transcription-recording method Expired / Lapsed 1980-07-01 1983-12-20 10 Details
US4418392A Measuring device Expired / Lapsed 1981-06-23 1983-11-29 3 Details
US4417283A Digital signal processing system Expired / Lapsed 1981-07-14 1983-11-22 12 Details
US4413352A X-Ray stereoscopic cinematography apparatus Expired / Lapsed 1981-10-30 1983-11-01 8 Details
US4408611A Probe for ultrasonic imaging apparatus Expired / Lapsed 1981-02-26 1983-10-11 2 Details
US4408181A Document data filing/retrieval system Expired / Lapsed 1980-04-09 1983-10-04 8 Details
USD270541S Electronic copying machine or the like Expired / Lapsed 1981-06-16 1983-09-13 1 Details
USD270538S Electronic copying machine or the like Expired / Lapsed 1981-06-16 1983-09-13 1 Details
USD270537S Combined electronic copying machine and sorter Expired / Lapsed 1981-06-11 1983-09-13 1 Details
US4400775A Shared system for shared information at main memory level i… Expired / Lapsed 1981-02-26 1983-08-23 5 Details
US4400771A Multi-processor system with programmable memory-access prio… Expired / Lapsed 1980-11-21 1983-08-23 11 Details
US4397885A Method and apparatus for treating fluorescent substance Expired / Lapsed 1981-07-22 1983-08-09 14 Details
US4390025A Ultrasonic display apparatus having means for detecting the… Expired / Lapsed 1981-04-17 1983-06-28 9 Details
US4389595A Fluorescent lamp Expired / Lapsed 1980-09-24 1983-06-21 23 Details
US4387721A Ultrasonic probe having means for receiving a puncturing ca… Expired / Lapsed 1981-04-08 1983-06-14 5 Details
US4383886A Method of manufacturing a semiconductor element Expired / Lapsed 1981-11-05 1983-05-17 11 Details
US4373533A Ultrasonic diagnosing apparatus Expired / Lapsed 1981-02-24 1983-02-15 7 Details
US4372323A Ultrasonic diagnosing apparatus Expired / Lapsed 1980-07-18 1983-02-08 9 Details
US4365587A Apparatus for forming organic polymer thin films utilizing … Expired / Lapsed 1979-07-25 1982-12-28 7 Details
US4354758A Exposure control device for a photocopier Expired / Lapsed 1981-01-21 1982-10-19 13 Details
US4352553A Quality control copying apparatus Expired / Lapsed 1980-12-15 1982-10-05 20 Details
US4352988A Apparatus for discriminating sheets Expired / Lapsed 1980-11-14 1982-10-05 12 Details
US4339501A Filter-coated phosphor Expired / Lapsed 1980-01-28 1982-07-13 9 Details
US4334781A Optical sensing system Expired / Lapsed 1980-06-03 1982-06-15 18 Details
US4330205A Optical apparatus for measuring the size and location of op… Expired / Lapsed 1980-01-03 1982-05-18 4 Details
US4318413A Ultrasonic diagnostic apparatus Expired / Lapsed 1979-10-12 1982-03-09 11 Details
US4309481A Filter-coated phosphor Expired / Lapsed 1980-04-09 1982-01-05 9 Details
US4300395A Semiconductor pressure detection device Expired / Lapsed 1979-10-25 1981-11-17 13 Details
US4298947A Intrabox temperature display device Expired / Lapsed 1979-11-15 1981-11-03 4 Details
US4289139A Ultrasonic transducer probe Expired / Lapsed 1979-02-22 1981-09-15 14 Details
US4287594A Function test evaluation apparatus for evaluating a functio… Expired / Lapsed 1979-12-12 1981-09-01 2 Details
US4284473A Submerged ultrasonic viewer for a nuclear reactor Expired / Lapsed 1979-03-27 1981-08-18 5 Details
US4285011A Apparatus for producing an image of an object scanned by ul… Expired / Lapsed 1979-01-23 1981-08-18 5 Details
US4272816A Overcurrent protecting apparatus Expired / Lapsed 1979-04-23 1981-06-09 9 Details
US4269195A Apparatus for measuring a pulmonary function Expired / Lapsed 1979-05-23 1981-05-26 9 Details
US4255619A Telephone reservation-processing system Expired / Lapsed 1979-09-05 1981-03-10 7 Details
US4253873A Titanium-based alloy having high mechanical strength Expired / Lapsed 1979-07-25 1981-03-03 12 Details
US4253338A Ultrasonic diagnostic equipment Expired / Lapsed 1977-04-27 1981-03-03 7 Details
US4250832A Apparatus for storing radioactive materials Expired / Lapsed 1978-11-28 1981-02-17 9 Details
US4243997A Semiconductor device Expired / Lapsed 1978-10-30 1981-01-06 16 Details
US4237902A Ultrasonic diagnosing apparatus Expired / Lapsed 1978-10-03 1980-12-09 6 Details
US4234940A Ultrasound transmitting or receiving apparatus Expired / Lapsed 1978-03-16 1980-11-18 20 Details
US4231097A Apparatus for calculating a plurality of interpolation valu… Expired / Lapsed 1978-12-07 1980-10-28 6 Details
US4223388A Scintillation camera Expired / Lapsed 1978-04-04 1980-09-16 9 Details
US4217516A Probe for ultrasonic diagnostic apparatus Expired / Lapsed 1977-04-25 1980-08-12 23 Details
US4215585A Ultrasonic scanner Expired / Lapsed 1977-04-21 1980-08-05 12 Details
US4196430A Roll-up method for a display unit Expired / Lapsed 1978-01-19 1980-04-01 7 Details
US4189775A Method and apparatus for subsection analysis using computed… Expired / Lapsed 1978-01-31 1980-02-19 8 Details
US4187857A Ultrasonic wave diagnostic apparatus to concurrently displa… Expired / Lapsed 1977-11-29 1980-02-12 14 Details
US4179731A Microprogrammed control system Expired / Lapsed 1977-04-04 1979-12-18 7 Details
US4175235A Apparatus for the plasma treatment of semiconductors Expired / Lapsed 1977-08-29 1979-11-20 11 Details
US4158801A Control system of alternating current motors Expired / Lapsed 1978-02-07 1979-06-19 8 Details
US4151834A Ultrasonic diagnostic apparatus Expired / Lapsed 1977-07-15 1979-05-01 15 Details
US4151034A Continuous gas plasma etching apparatus Expired / Lapsed 1977-12-19 1979-04-24 15 Details
US4150573A Electronic digital thermometer Expired / Lapsed 1977-12-02 1979-04-24 29 Details
US4151592A Data transfer control system Expired / Lapsed 1976-10-15 1979-04-24 3 Details
US4142233A Refreshing system for dynamic memory Expired / Lapsed 1976-10-19 1979-02-27 9 Details
US4141018A Thermal recording head and drive circuit Expired / Lapsed 1977-11-07 1979-02-20 9 Details
US4136325A Ultrasonic wave transmitting and receiving apparatus Expired / Lapsed 1976-06-23 1979-01-23 12 Details
US4131951A High speed complementary MOS memory Expired / Lapsed 1977-05-17 1978-12-26 8 Details
US4131906A Dynamic random access memory using MOS FETs and method for … Expired / Lapsed 1977-02-02 1978-12-26 7 Details
US4130348A Optical system for a coherent light illuminating source Expired / Lapsed 1977-08-02 1978-12-19 8 Details
US4130900A Memory with common read/write data line and write-in latch … Expired / Lapsed 1977-04-25 1978-12-19 7 Details
US4130866A Data processor having a circuit structure suitable for fabr… Expired / Lapsed 1977-04-19 1978-12-19 9 Details
US4124802A Method and apparatus for implanting radioactive gas in a ba… Expired / Lapsed 1976-06-24 1978-11-07 19 Details
US4123794A Multi-computer system Expired / Lapsed 1976-12-21 1978-10-31 12 Details
US4120040A Electronic calculator Expired / Lapsed 1977-11-07 1978-10-10 2 Details
US4117542A Electronic pocket directory Expired / Lapsed 1977-07-07 1978-09-26 18 Details
US4115795A Semiconductor memory device Expired / Lapsed 1976-12-27 1978-09-19 9 Details
US4069472A Foreground subject-identifying apparatus Expired / Lapsed 1976-12-22 1978-01-17 15 Details
US4065369A Activated gas reaction apparatus & method Expired / Lapsed 1976-07-15 1977-12-27 12 Details
US4065809A Multi-processing system for controlling microcomputers and … Expired / Lapsed 1976-05-27 1977-12-27 6 Details
US4062103A Method for manufacturing a semiconductor device Expired / Lapsed 1975-09-02 1977-12-13 7 Details
US4044343A Non-volatile random access memory system Expired / Lapsed 1976-04-29 1977-08-23 6 Details
US4031470A Operation program-presetting system Expired / Lapsed 1975-04-15 1977-06-21 11 Details
US4023108A Electronically controllable tuning device having a frequenc… Expired / Lapsed 1976-01-21 1977-05-10 9 Details
US4019169A Ultrasonic wave transmitting and receiving apparatus Expired / Lapsed 1975-09-24 1977-04-19 11 Details
US4019198A Non-volatile semiconductor memory device Expired / Lapsed 1974-07-03 1977-04-19 8 Details
US4013367A Apparatus for detecting irregularities in the surfaces of m… Expired / Lapsed 1975-05-13 1977-03-22 9 Details
US3989955A Logic circuit arrangements using insulated-gate field effec… Expired / Lapsed 1976-03-18 1976-11-02 5 Details
US3988024A Turntable apparatus Expired / Lapsed 1975-02-26 1976-10-26 13 Details
US3986956A Artificial kidney device Expired / Lapsed 1974-12-04 1976-10-19 15 Details
US3985999A Code readout apparatus Expired / Lapsed 1974-03-21 1976-10-12 3 Details
US3973725A Apparatus for discriminating the type of white blood corpus… Expired / Lapsed 1974-11-12 1976-08-10 14 Details
US3973127A X-ray tomography apparatus Expired / Lapsed 1975-10-06 1976-08-03 12 Details
US3944816A Charge transfer apparatus having light sensitivity control … Expired / Lapsed 1974-10-02 1976-03-16 4 Details
US3945000A Series logic circuit arrangement using a plurality of compl… Expired / Lapsed 1974-07-30 1976-03-16 5 Details
US3943344A Apparatus for measuring the elevation of a three-dimensiona… Expired / Lapsed 1974-06-26 1976-03-09 5 Details
US3939319A High-frequency heating device for variably controlling a hi… Expired / Lapsed 1974-01-31 1976-02-17 9 Details
US3924196A High frequency therapeutic apparatus Expired / Lapsed 1974-03-04 1975-12-02 8 Details
US3919683A Ultrasonic wave transmitting and receiving apparatus Expired / Lapsed 1974-05-13 1975-11-11 6 Details
US3909806A Analogue memory device Expired / Lapsed 1974-07-15 1975-09-30 13 Details
US3906323A Industrial robot Expired / Lapsed 1974-01-25 1975-09-16 11 Details
US3889222A Surge voltage absorber Expired / Lapsed 1973-11-07 1975-06-10 8 Details
US3889227A Ultrasonic wave receiving apparatus Expired / Lapsed 1973-09-18 1975-06-10 6 Details
US3864636A Local oscillation device for a television receiver set Expired / Lapsed 1973-03-20 1975-02-04 18 Details
US3856985A Ultrasonic diagnostic apparatus Expired / Lapsed 1973-05-17 1974-12-24 41 Details
US3845284A Positioning apparatus Expired / Lapsed 1973-03-15 1974-10-29 7 Details
US3833389A Heat resistant and strengthened composite materials and met… Expired / Lapsed 1971-12-23 1974-09-03 3 Details
US3832636A Transceiver with time division means for indicating the pre… Expired / Lapsed 1972-11-02 1974-08-27 15 Details
US3831155A Nonvolatile semiconductor shift register Expired / Lapsed 1972-12-29 1974-08-20 7 Details
US3829649A Microwave oven Expired / Lapsed 1973-02-09 1974-08-13 2 Details
US3825341A Doppler radar using laser Expired / Lapsed 1971-06-11 1974-07-23 10 Details
US3813651A Data processing system Expired / Lapsed 1972-12-26 1974-05-28 9 Details
US3810114A Data processing system Expired / Lapsed 1972-12-29 1974-05-07 11 Details
US3806714A Sequence controller Expired / Lapsed 1972-07-19 1974-04-23 7 Details
US3805239A Pattern treating apparatus Expired / Lapsed 1973-01-24 1974-04-16 11 Details
US3794761A Pattern processing apparatus Expired / Lapsed 1972-07-11 1974-02-26 18 Details
US3784031A Machine for performing work Expired / Lapsed 1971-09-23 1974-01-08 8 Details
US3777587A Screw driving apparatus having magnet nut Expired / Lapsed 1972-02-10 1973-12-11 14 Details
US3774376A Centrifugal gas separator Expired / Lapsed 1971-06-16 1973-11-27 10 Details
US3737673A Logic circuit using complementary type insulated gate field… Expired / Lapsed 1971-04-22 1973-06-05 14 Details
US3737911A Object identification system Expired / Lapsed 1970-08-17 1973-06-05 10 Details
US3720841A Logical circuit arrangement Expired / Lapsed 1971-12-28 1973-03-13 6 Details
US3717413A Sun sensing system for a flying body Expired / Lapsed 1970-11-20 1973-02-20 7 Details
US3711657A Control device for a tape recorder for detecting the beginn… Expired / Lapsed 1971-05-05 1973-01-16 7 Details
US3706922A Linear comb-shaped synchronous motor Expired / Lapsed 1971-06-08 1972-12-19 10 Details
US3696340A Microprogram execution control for fault diagnosis Expired / Lapsed 1970-11-09 1972-10-03 13 Details
US3688266A Preprocessing system for pattern recognition Expired / Lapsed 1970-03-30 1972-08-29 4 Details
US3683360A Control devices for display apparatus Expired / Lapsed 1971-07-01 1972-08-08 2 Details
US3670719A Catheter type semiconductor radiation detector Expired / Lapsed 1969-10-22 1972-06-20 6 Details
US3668637A Character reader having optimum quantization level Expired / Lapsed 1970-09-14 1972-06-06 10 Details
US3665916A Catheter type semiconductor radiation detector Expired / Lapsed 1969-08-28 1972-05-30 8 Details
US3663767A Magnetic head Expired / Lapsed 1969-11-12 1972-05-16 4 Details
US3657658A Program control apparatus Expired / Lapsed 1970-12-11 1972-04-18 13 Details
US3617753A Semiconductor photoelectric converting device Expired / Lapsed 1970-01-12 1971-11-02 9 Details
US3594622A A linear comb-shaped synchronous motor Expired / Lapsed 1970-02-24 1971-07-20 14 Details
US3578871A Control device for an object such as a rotor in a prime mov… Expired / Lapsed 1969-02-06 1971-05-18 16 Details
US3577153A Image pickup apparatus Expired / Lapsed 1968-08-19 1971-05-04 9 Details
US3571504A Infrared ray television apparatus Expired / Lapsed 1968-11-18 1971-03-16 4 Details
US3567868A Interphone device having presence indicator means Expired / Lapsed 1968-08-27 1971-03-02 5 Details
US3566085A Photoelectric reading apparatus Expired / Lapsed 1968-12-13 1971-02-23 5 Details
US3541511A Apparatus for recognising a pattern Expired / Lapsed 1967-10-26 1970-11-17 0 Details
US3522446A Current switching logic circuit Expired / Lapsed 1968-08-28 1970-08-04 0 Details
US3494354A Flexible endoscope for use in cancer diagnosis Expired / Lapsed 1965-09-30 1970-02-10 0 Details
US3463879A Image transmitting system utilizing one tube for display an… Expired / Lapsed 1966-04-15 1969-08-26 0 Details
US3456641A Flexible endoscope for photographing diseased parts in canc… Expired / Lapsed 1965-09-30 1969-07-22 0 Details
US3427613A Object identification system Expired / Lapsed 1967-02-27 1969-02-11 0 Details
US3383752A Method of preparing styluses for reproducing phonograph rec… Expired / Lapsed 1965-09-17 1968-05-21 0 Details
US3364406A Protective system for motors of electric cars Expired / Lapsed 1964-11-09 1968-01-16 0 Details
US2993234A Method of manufacturing antistatic record disks Expired / Lapsed 1958-10-27 1961-07-25 1 Details