Sony Corp
Sony CorpActive Patents
0
Total Holdings
232
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| EP0889649A2 | Control system and method, reproducing apparatus, output ap… | Expired / Lapsed | 1998-07-01 | — | 10 | Details |
| EP0859365A2 | Recording/reproducing apparatus and method | Expired / Lapsed | 1998-02-12 | — | 12 | Details |
| US20020031333A1 | On-the fly video editing device for capturing and storing i… | Expired / Lapsed | 1997-09-30 | — | 26 | Details |
| EP0825741A2 | Communication method and apparatus | Expired / Lapsed | 1997-08-22 | — | 19 | Details |
| EP0792056A2 | Portable communication apparatus | Expired / Lapsed | 1997-02-25 | — | 11 | Details |
| EP0772360A2 | Video data receiving apparatus, video data transmitting app… | Expired / Lapsed | 1996-10-28 | — | 13 | Details |
| JPH104126A | Mounting board, electronic component mounting method, and s… | Expired / Lapsed | 1996-06-14 | — | 0 | Details |
| EP0764951A1 | Editing system | Expired / Lapsed | 1996-04-08 | — | 6 | Details |
| EP0706273A2 | Method of and apparatus for demodulating a signal conveyed … | Expired / Lapsed | 1995-10-02 | — | 14 | Details |
| EP0656728A2 | Bi-directional broadcasting system | Expired / Lapsed | 1994-11-16 | — | 14 | Details |
| JPH0746146A | Decryption device | Expired / Lapsed | 1993-09-27 | — | 0 | Details |
| JPH0757631A | Phosphor electrodeposition method for field emission display | Expired / Lapsed | 1993-08-18 | — | 0 | Details |
| EP0521732A2 | Antenna system for receiving broadcast or communication sig… | Expired / Lapsed | 1992-07-03 | — | 7 | Details |
| EP0499278A2 | Method for recording sector control information on magneto-… | Expired / Lapsed | 1992-02-14 | — | 9 | Details |
| EP0462601A2 | Radiotelephone communication system | Expired / Lapsed | 1991-06-19 | — | 1 | Details |
| EP0393646A2 | Method of and apparatus for transmitting video data | Expired / Lapsed | 1990-04-19 | — | 10 | Details |
| EP0387047A2 | Magneto-optical recording apparatus | Expired / Lapsed | 1990-03-08 | — | 25 | Details |
| JPH0380443A | Optical disk | Expired / Lapsed | 1989-08-22 | — | 0 | Details |
| JPH024285A | Device for displaying map information | Expired / Lapsed | 1988-06-21 | — | 0 | Details |
| EP0261893A2 | Picture-in-picture television receivers | Expired / Lapsed | 1987-09-18 | — | 7 | Details |
| JPS647841A | Video exchanging device | Expired / Lapsed | 1987-06-30 | — | 0 | Details |
| JPS64884A | Receiver | Expired / Lapsed | 1987-06-23 | — | 0 | Details |
| JPS63276732A | Information recording medium | Expired / Lapsed | 1987-05-08 | — | 0 | Details |
| EP0213731A1 | Index signal detecting system | Expired / Lapsed | 1986-07-25 | — | 6 | Details |
| EP0199565A2 | Semiconductor laser apparatus for optical heads | Expired / Lapsed | 1986-04-18 | — | 8 | Details |
| EP0194143A2 | Videotex system | Expired / Lapsed | 1986-03-05 | — | 15 | Details |
| EP0166300A2 | Receiver for global positioning system and method for deter… | Expired / Lapsed | 1985-06-11 | — | 20 | Details |
| JPS6151668A | Floppy disc and floppy disc drive | Expired / Lapsed | 1984-08-22 | — | 0 | Details |
| JPS601666A | Data recording and repoducing device | Expired / Lapsed | 1983-06-17 | — | 0 | Details |
| EP0084969A1 | Method of and apparatus for reproducing an information sign… | Expired / Lapsed | 1983-01-21 | — | 12 | Details |
| JPS58222331A | Reproducer of character information | Expired / Lapsed | 1982-06-21 | — | 0 | Details |
| FR2507714A1 | BEARING FOR A ROTATING BODY | Expired / Lapsed | 1982-06-07 | — | 0 | Details |
| JPS5893477A | Piezoelectric motor | Expired / Lapsed | 1981-11-26 | — | 0 | Details |
| JPS5423020A | Amorphous magnetic alloy | Expired / Lapsed | 1977-07-21 | — | 0 | Details |
| JPS5314A | Heterodyne receiver | Expired / Lapsed | 1976-06-24 | — | 0 | Details |
| US7365782B2 | Image pickup device and method for enabling switching betwe… | Expired / Lapsed | 2002-06-07 | 2008-04-29 | 10 | Details |
| US7350158B2 | Icon display system and method, electronic appliance, and c… | Expired / Lapsed | 2004-02-05 | 2008-03-25 | 14 | Details |
| US7069516B2 | Information input/output system and information input/outpu… | Expired / Lapsed | 2000-12-18 | 2006-06-27 | 45 | Details |
| US6990498B2 | Dynamic graphical index of website content | Expired / Lapsed | 2001-07-26 | 2006-01-24 | 46 | Details |
| US6910049B2 | System and process of managing media content | Expired / Lapsed | 2001-07-13 | 2005-06-21 | 69 | Details |
| US6650826B1 | Editing apparatus and method, and image material selection … | Expired / Lapsed | 1999-03-31 | 2003-11-18 | 15 | Details |
| US6590585B1 | Apparatus, method, and medium for displaying a moving pictu… | Expired / Lapsed | 2000-04-21 | 2003-07-08 | 13 | Details |
| US6518986B1 | Method and apparatus for providing an on-screen guide for a… | Expired / Lapsed | 1997-10-17 | 2003-02-11 | 8 | Details |
| US6400378B1 | Home movie maker | Expired / Lapsed | 1997-09-26 | 2002-06-04 | 22 | Details |
| US6389182B1 | Image processing apparatus, image processing method and sto… | Expired / Lapsed | 1999-06-28 | 2002-05-14 | 13 | Details |
| US6348932B1 | Provide two different types of service in a menu | Expired / Lapsed | 1999-03-01 | 2002-02-19 | 86 | Details |
| US6289167B1 | System for acquiring, reviewing, and editing sports video s… | Expired / Lapsed | 1997-10-14 | 2001-09-11 | 14 | Details |
| US6275551B1 | Apparatus for receiving digital information signals | Expired / Lapsed | 1998-07-29 | 2001-08-14 | 4 | Details |
| USD444794S1 | Computer generated image for display panel or screen | Expired / Lapsed | 1999-11-30 | 2001-07-10 | 1 | Details |
| US6243142B1 | Method and apparatus for displaying time and program status… | Expired / Lapsed | 1997-10-17 | 2001-06-05 | 35 | Details |
| US6236802B1 | Editing apparatus and editing method | Expired / Lapsed | 1998-02-25 | 2001-05-22 | 20 | Details |
| US6223215B1 | Tracking a user's purchases on the internet by associating … | Expired / Lapsed | 1998-09-22 | 2001-04-24 | 28 | Details |
| US6192056B1 | Demodulating apparatus and demodulating method | Expired / Lapsed | 1998-05-04 | 2001-02-20 | 8 | Details |
| US6185339B1 | Bit stream analyzing method and apparatus | Expired / Lapsed | 1998-09-22 | 2001-02-06 | 12 | Details |
| USD421430S | Icon for a display screen | Expired / Lapsed | 1998-10-23 | 2000-03-07 | 1 | Details |
| USD420995S | Computer generated image for a display panel or screen | Expired / Lapsed | 1998-09-04 | 2000-02-22 | 1 | Details |
| USD418120S | Computer generated image for a display panel and screen | Expired / Lapsed | 1998-07-14 | 1999-12-28 | 1 | Details |
| US6005601A | Apparatus for and method of controlling display of electron… | Expired / Lapsed | 1997-02-06 | 1999-12-21 | 23 | Details |
| USD416253S | Wireless telephone | Expired / Lapsed | 1998-11-06 | 1999-11-09 | 1 | Details |
| EP0584991B1 | Apparatus and method for recording digital data | Expired / Lapsed | 1993-08-09 | 1999-10-13 | 5 | Details |
| USD413597S | Combined telephone and computer | Expired / Lapsed | 1998-01-06 | 1999-09-07 | 1 | Details |
| US5939823A | Fluorescent screen display device having electrodeposited c… | Expired / Lapsed | 1995-06-30 | 1999-08-17 | 5 | Details |
| USD408794S | Computer | Expired / Lapsed | 1997-11-17 | 1999-04-27 | 1 | Details |
| US5878060A | Viterbi decoding apparatus and viterbe decoding method | Expired / Lapsed | 1997-03-24 | 1999-03-02 | 13 | Details |
| USD392258S | Icon for a display screen | Expired / Lapsed | 1992-09-09 | 1998-03-17 | 1 | Details |
| US5721778A | Digital signal transmitting method, digital signal receivin… | Expired / Lapsed | 1995-10-19 | 1998-02-24 | 13 | Details |
| US5709588A | Polishing slurry and polishing process using the same | Expired / Lapsed | 1996-09-10 | 1998-01-20 | 10 | Details |
| US5649284A | Multiplex broadcasting system | Expired / Lapsed | 1994-12-13 | 1997-07-15 | 17 | Details |
| USD372475S | Tape player combined with radio tuner | Expired / Lapsed | 1995-01-31 | 1996-08-06 | 1 | Details |
| US5534749A | Field-emission display with black insulating layer between … | Expired / Lapsed | 1994-07-20 | 1996-07-09 | 4 | Details |
| US5436492A | Charge-coupled device image sensor | Expired / Lapsed | 1993-06-21 | 1995-07-25 | 16 | Details |
| USD352714S | Radio receiver | Expired / Lapsed | 1992-09-03 | 1994-11-22 | 1 | Details |
| USD351379S | Magnetic tape cassette | Expired / Lapsed | 1993-10-21 | 1994-10-11 | 1 | Details |
| USD351380S | Magnetic tape cassette | Expired / Lapsed | 1993-10-21 | 1994-10-11 | 1 | Details |
| USD350749S | Tape player combined with a radio receiver | Expired / Lapsed | 1993-12-08 | 1994-09-20 | 1 | Details |
| US5340673A | Method of manufacturing a phosphor screen of a cathode ray … | Expired / Lapsed | 1993-03-22 | 1994-08-23 | 4 | Details |
| USD347005S | Cordless telephone | Expired / Lapsed | 1992-09-22 | 1994-05-17 | 1 | Details |
| US5255144A | Brake device for tape reel in magnetic tape cassette | Expired / Lapsed | 1992-03-20 | 1993-10-19 | 22 | Details |
| US5247496A | Recording and/or reproducing apparatus for using magneto-op… | Expired / Lapsed | 1992-12-09 | 1993-09-21 | 7 | Details |
| US5237259A | Charging method for secondary battery | Expired / Lapsed | 1991-11-12 | 1993-08-17 | 2 | Details |
| US5232861A | Method of manufacturing semiconductor device including a bi… | Expired / Lapsed | 1991-08-28 | 1993-08-03 | 3 | Details |
| USD336295S | Tape recorder | Expired / Lapsed | 1991-04-22 | 1993-06-08 | 1 | Details |
| US5159589A | Optical recording and/or reproducing apparatus | Expired / Lapsed | 1990-05-31 | 1992-10-27 | 4 | Details |
| US5156988A | A method of manufacturing a quantum interference semiconduc… | Expired / Lapsed | 1991-09-11 | 1992-10-20 | 6 | Details |
| US5152783A | Antithrombogenic material | Expired / Lapsed | 1990-08-21 | 1992-10-06 | 17 | Details |
| GB2221118B | Image processing apparatus | Expired / Lapsed | 1989-06-20 | 1992-09-09 | 0 | Details |
| USD326852S | Radio tuner | Expired / Lapsed | 1990-11-30 | 1992-06-09 | 1 | Details |
| US5104573A | Green light emitting phosphor | Expired / Lapsed | 1989-10-16 | 1992-04-14 | 6 | Details |
| US5090004A | Tracking system for optical recording and/or reproducing ap… | Expired / Lapsed | 1990-07-09 | 1992-02-18 | 7 | Details |
| USD320017S | Tape player | Expired / Lapsed | 1989-12-07 | 1991-09-17 | 1 | Details |
| USD320015S | Combined tape player and radio tuner | Expired / Lapsed | 1989-04-14 | 1991-09-17 | 1 | Details |
| USD318054S | Speaker box | Expired / Lapsed | 1989-01-11 | 1991-07-09 | 1 | Details |
| USD314768S | Radio receiver | Expired / Lapsed | 1988-05-12 | 1991-02-19 | 1 | Details |
| USD314574S | Combined tape player and earphone | Expired / Lapsed | 1988-08-16 | 1991-02-12 | 1 | Details |
| USD312638S | Cassette tape player | Expired / Lapsed | 1987-10-28 | 1990-12-04 | 1 | Details |
| US4901145A | Motion vector estimation in television images | Expired / Lapsed | 1988-05-31 | 1990-02-13 | 23 | Details |
| USD305762S | Combined tape player and radio tuner | Expired / Lapsed | 1987-11-16 | 1990-01-30 | 1 | Details |
| USD305652S | Portable radiotelephone | Expired / Lapsed | 1988-06-29 | 1990-01-23 | 1 | Details |
| US4893296A | Optical pickup device | Expired / Lapsed | 1988-07-15 | 1990-01-09 | 15 | Details |
| US4891715A | Digital video signal processing with cut editing feature | Expired / Lapsed | 1988-02-10 | 1990-01-02 | 12 | Details |
| US4891779A | Apparatus for arithmetic processing | Expired / Lapsed | 1987-04-30 | 1990-01-02 | 15 | Details |
| USD304580S | Magnetic tape cassette | Expired / Lapsed | 1986-06-27 | 1989-11-14 | 1 | Details |
| US4847846A | Semiconductor laser chip | Expired / Lapsed | 1988-03-07 | 1989-07-11 | 8 | Details |
| US4843601A | Tracking servo system for optical disk playre apparatus | Expired / Lapsed | 1987-12-11 | 1989-06-27 | 15 | Details |
| US4837802A | Radio communication method and system | Expired / Lapsed | 1987-09-17 | 1989-06-06 | 12 | Details |
| US4823331A | Focusing detection apparatus | Expired / Lapsed | 1987-02-18 | 1989-04-18 | 12 | Details |
| US4821223A | Two-dimensional finite impulse response filters | Expired / Lapsed | 1986-09-23 | 1989-04-11 | 6 | Details |
| US4819192A | Method of displaying image | Expired / Lapsed | 1986-02-24 | 1989-04-04 | 11 | Details |
| USD300529S | Radio receiver | Expired / Lapsed | 1986-01-14 | 1989-04-04 | 1 | Details |
| US4815056A | Automatic disk handling device with overturn plate | Expired / Lapsed | 1985-06-05 | 1989-03-21 | 14 | Details |
| US4802005A | High efficiency encoding system | Expired / Lapsed | 1987-07-17 | 1989-01-31 | 12 | Details |
| USD299451S | Speech synthesizer activated by reading of a magnetic card | Expired / Lapsed | 1985-08-22 | 1989-01-17 | 1 | Details |
| US4783844A | Apparatus for transmitting and recording signals | Expired / Lapsed | 1986-06-04 | 1988-11-08 | 7 | Details |
| USD298245S | Television receiver | Expired / Lapsed | 1986-06-26 | 1988-10-25 | 1 | Details |
| USD298237S | Tape player | Expired / Lapsed | 1986-01-10 | 1988-10-25 | 1 | Details |
| US4775885A | Color filter arrangement for CCD Imager | Expired / Lapsed | 1987-05-26 | 1988-10-04 | 9 | Details |
| USD296780S | Video tape cassette | Expired / Lapsed | 1985-02-12 | 1988-07-19 | 1 | Details |
| US4746970A | White uniformity correcting apparatus for a three-color dis… | Expired / Lapsed | 1986-01-14 | 1988-05-24 | 4 | Details |
| US4742386A | Method and apparatus for encoding component digital video s… | Expired / Lapsed | 1987-03-06 | 1988-05-03 | 17 | Details |
| US4733385A | Signal recording and reproducing apparatus for an opto-magn… | Expired / Lapsed | 1986-03-26 | 1988-03-22 | 7 | Details |
| USD293907S | Television receiver | Expired / Lapsed | 1985-04-04 | 1988-01-26 | 1 | Details |
| US4703353A | Signal interpolators | Expired / Lapsed | 1986-10-21 | 1987-10-27 | 8 | Details |
| US4694485A | Cordless telephone | Expired / Lapsed | 1986-09-25 | 1987-09-15 | 23 | Details |
| US4691340A | Image information accessing user terminal | Expired / Lapsed | 1985-11-22 | 1987-09-01 | 12 | Details |
| US4688206A | Device for opening and closing a shutter member of a disk c… | Expired / Lapsed | 1986-09-10 | 1987-08-18 | 8 | Details |
| USD291084S | Radio receiver or the like | Expired / Lapsed | 1984-09-14 | 1987-07-28 | 1 | Details |
| US4679225A | Signal transmission apparatus for a multiple channel system… | Expired / Lapsed | 1985-06-18 | 1987-07-07 | 18 | Details |
| US4677476A | Method for detecting a movement of a television signal | Expired / Lapsed | 1985-10-24 | 1987-06-30 | 4 | Details |
| USD289637S | Magnetic tape cassette | Expired / Lapsed | 1985-03-22 | 1987-05-05 | 1 | Details |
| US4650928A | Signal transmitting and/or receiving apparatus | Expired / Lapsed | 1985-06-07 | 1987-03-17 | 14 | Details |
| US4614474A | Device for exchanging disks | Expired / Lapsed | 1984-08-23 | 1986-09-30 | 13 | Details |
| US4592799A | Method of recrystallizing a polycrystalline, amorphous or s… | Expired / Lapsed | 1983-05-09 | 1986-06-03 | 47 | Details |
| US4587567A | Flat picture tube television receiver including picture tub… | Expired / Lapsed | 1984-03-01 | 1986-05-06 | 10 | Details |
| US4547872A | Optical recording and reproducing apparatus with improved f… | Expired / Lapsed | 1982-07-22 | 1985-10-15 | 11 | Details |
| US4532419A | Memory card having static electricity protection | Expired / Lapsed | 1983-09-01 | 1985-07-30 | 16 | Details |
| US4529905A | Cathode ray tube apparatus | Expired / Lapsed | 1982-12-07 | 1985-07-16 | 5 | Details |
| US4530066A | Compact expandable electronic signal processing apparatus | Expired / Lapsed | 1982-08-24 | 1985-07-16 | 20 | Details |
| USD278340S | Computer | Expired / Lapsed | 1982-08-24 | 1985-04-09 | 1 | Details |
| US4489349A | Video brightness control circuit | Expired / Lapsed | 1981-02-02 | 1984-12-18 | 28 | Details |
| US4476555A | Tracking servo apparatus for an optical information reprodu… | Expired / Lapsed | 1983-09-26 | 1984-10-09 | 12 | Details |
| USD275391S | Combined tape recorder and radio receiver | Expired / Lapsed | 1982-04-22 | 1984-09-04 | 1 | Details |
| USD274618S | Video disk player | Expired / Lapsed | 1982-04-29 | 1984-07-10 | 1 | Details |
| US4456971A | Semiconductor RAM that is accessible in magnetic disc stora… | Expired / Lapsed | 1982-02-04 | 1984-06-26 | 18 | Details |
| USD272908S | Television receiver | Expired / Lapsed | 1981-10-06 | 1984-03-06 | 1 | Details |
| US4420694A | Muting circuit | Expired / Lapsed | 1981-07-22 | 1983-12-13 | 3 | Details |
| USD271298S | Floppydisk | Expired / Lapsed | 1981-06-05 | 1983-11-08 | 1 | Details |
| US4413340A | Error correctable data transmission method | Expired / Lapsed | 1981-11-12 | 1983-11-01 | 44 | Details |
| USD270908S | Tape player | Expired / Lapsed | 1981-10-06 | 1983-10-11 | 1 | Details |
| USD270453S | Word processor | Expired / Lapsed | 1981-06-05 | 1983-09-06 | 1 | Details |
| USD270168S | Typewriter | Expired / Lapsed | 1981-06-05 | 1983-08-16 | 1 | Details |
| USD268671S | Video tape cassette | Expired / Lapsed | 1980-11-10 | 1983-04-19 | 1 | Details |
| US4361627A | Magnetic recording medium | Expired / Lapsed | 1980-10-17 | 1982-11-30 | 16 | Details |
| US4361776A | Coil assembly for flat brushless motor | Expired / Lapsed | 1980-07-08 | 1982-11-30 | 20 | Details |
| US4355392A | Burst-error correcting system | Expired / Lapsed | 1980-12-19 | 1982-10-19 | 23 | Details |
| US4349762A | Fiber reinforced piezoelectric bender transducer | Expired / Lapsed | 1980-04-24 | 1982-09-14 | 10 | Details |
| US4348699A | Apparatus for recording and/or reproducing digital signal | Expired / Lapsed | 1980-05-13 | 1982-09-07 | 14 | Details |
| US4338674A | Digital waveform generating apparatus | Expired / Lapsed | 1980-04-01 | 1982-07-06 | 6 | Details |
| US4306305A | PCM Signal transmitting system with error detecting and cor… | Expired / Lapsed | 1979-10-19 | 1981-12-15 | 9 | Details |
| US4288754A | Filter circuit | Expired / Lapsed | 1979-09-24 | 1981-09-08 | 9 | Details |
| US4278993A | Color picture-in-picture television receiver | Expired / Lapsed | 1979-11-13 | 1981-07-14 | 10 | Details |
| US4259698A | Speed and phase servo control apparatus | Expired / Lapsed | 1979-02-26 | 1981-03-31 | 34 | Details |
| US4257066A | Channel selecting apparatus for use with signal receiver an… | Expired / Lapsed | 1979-05-14 | 1981-03-17 | 9 | Details |
| US4245252A | Television camera having a character display | Expired / Lapsed | 1977-08-04 | 1981-01-13 | 6 | Details |
| US4237886A | Electrode to be used in contact with a living body | Expired / Lapsed | 1978-03-31 | 1980-12-09 | 16 | Details |
| US4236198A | Switching regulator | Expired / Lapsed | 1978-12-11 | 1980-11-25 | 9 | Details |
| US4220879A | Brushless DC motor | Expired / Lapsed | 1978-01-09 | 1980-09-02 | 9 | Details |
| US4175267A | Method and apparatus of inserting an address signal in a vi… | Expired / Lapsed | 1978-06-28 | 1979-11-20 | 8 | Details |
| US4173739A | Overload detecting circuit for a PWM amplifier | Expired / Lapsed | 1978-09-18 | 1979-11-06 | 9 | Details |
| US4159480A | Method of inserting an address signal in a video signal | Expired / Lapsed | 1977-10-25 | 1979-06-26 | 20 | Details |
| US4151557A | Television receiver operating mode selector | Expired / Lapsed | 1977-06-08 | 1979-04-24 | 5 | Details |
| US4141047A | Method and apparatus for correcting tracking errors of a tr… | Expired / Lapsed | 1977-09-12 | 1979-02-20 | 28 | Details |
| US4139865A | Television receiver with video changeover switch responsive… | Expired / Lapsed | 1977-06-08 | 1979-02-13 | 7 | Details |
| US4138694A | Video signal recorder/reproducer for recording and reproduc… | Expired / Lapsed | 1977-02-23 | 1979-02-06 | 29 | Details |
| US4106056A | Solid state CCD cameras having phase adjustment of luminanc… | Expired / Lapsed | 1977-05-24 | 1978-08-08 | 11 | Details |
| USD248755S | Tape cassette case | Expired / Lapsed | 1976-03-08 | 1978-08-01 | 1 | Details |
| US4103232A | Wafer transfer device | Expired / Lapsed | 1975-12-29 | 1978-07-25 | 14 | Details |
| US4100577A | Apparatus for optically reading signal information recorded… | Expired / Lapsed | 1976-11-18 | 1978-07-11 | 8 | Details |
| US4089049A | Inverter circuit including transformer with shielding of un… | Expired / Lapsed | 1976-06-07 | 1978-05-09 | 2 | Details |
| US4087850A | Power supply circuit | Expired / Lapsed | 1977-01-21 | 1978-05-02 | 6 | Details |
| US4086520A | Speed and phase control system | Expired / Lapsed | 1976-02-19 | 1978-04-25 | 7 | Details |
| US4084986A | Method of manufacturing a semi-insulating silicon layer | Expired / Lapsed | 1976-04-19 | 1978-04-18 | 29 | Details |
| US4081841A | Solid state image sensor | Expired / Lapsed | 1976-09-15 | 1978-03-28 | 13 | Details |
| US4061983A | Transistor amplifier with protective circuit | Expired / Lapsed | 1975-12-08 | 1977-12-06 | 15 | Details |
| USD245908S | Tape cassette | Expired / Lapsed | 1976-06-25 | 1977-09-27 | 1 | Details |
| USD245627S | Tape cassette | Expired / Lapsed | 1976-06-25 | 1977-08-30 | 1 | Details |
| US4031548A | Plural receiving and recording television system | Expired / Lapsed | 1975-09-25 | 1977-06-21 | 3 | Details |
| US4016598A | Solid state camera having plural image sensors | Expired / Lapsed | 1975-03-26 | 1977-04-05 | 7 | Details |
| US4015090A | Recording and/or reproducing apparatus | Expired / Lapsed | 1975-05-20 | 1977-03-29 | 13 | Details |
| US4014091A | Method and apparatus for an electret transducer | Expired / Lapsed | 1972-08-22 | 1977-03-29 | 9 | Details |
| US4012833A | Method of making display structure having light emitting di… | Expired / Lapsed | 1975-11-07 | 1977-03-22 | 12 | Details |
| US4009401A | Fade-in and fade-out switching circuit | Expired / Lapsed | 1974-09-05 | 1977-02-22 | 10 | Details |
| US3981005A | Transmitting apparatus using A/D converter and analog signa… | Expired / Lapsed | 1974-06-21 | 1976-09-14 | 12 | Details |
| US3975760A | Solid state camera | Expired / Lapsed | 1975-03-25 | 1976-08-17 | 14 | Details |
| US3968514A | Magnetic recording and/or reproducing apparatus | Expired / Lapsed | 1974-12-30 | 1976-07-06 | 12 | Details |
| US3963456A | Automatic assembly apparatus for inserting electronic conne… | Expired / Lapsed | 1974-10-09 | 1976-06-15 | 8 | Details |
| US3958271A | Tracking control circuit using a delayed tach signal | Expired / Lapsed | 1975-04-11 | 1976-05-18 | 6 | Details |
| US3943292A | Automatic telephone answering apparatus | Expired / Lapsed | 1974-09-09 | 1976-03-09 | 14 | Details |
| US3942042A | Pulse waveform generator circuit | Expired / Lapsed | 1974-09-25 | 1976-03-02 | 14 | Details |
| US3938138A | Time switching power saver system for electronic indicators | Expired / Lapsed | 1974-06-17 | 1976-02-10 | 6 | Details |
| US3904967A | Driving circuit for a channel selecting system | Expired / Lapsed | 1974-03-21 | 1975-09-09 | 9 | Details |
| US3873846A | Power supply system | Expired / Lapsed | 1973-08-29 | 1975-03-25 | 22 | Details |
| US3873778A | Signal processing system | Expired / Lapsed | 1973-06-06 | 1975-03-25 | 16 | Details |
| US3856525A | Method for manufacturing cathode ray tube screen | Expired / Lapsed | 1972-09-15 | 1974-12-24 | 13 | Details |
| US3845394A | Broadcast receiver | Expired / Lapsed | 1972-11-27 | 1974-10-29 | 90 | Details |
| US3821535A | Electronic calculator having an indicator blanking circuit | Expired / Lapsed | 1973-01-30 | 1974-06-28 | 10 | Details |
| US3764089A | Recording and reproducing apparatus using magnetic cassette | Expired / Lapsed | 1971-09-10 | 1973-10-09 | 14 | Details |
| US3725572A | Color television camera | Expired / Lapsed | 1971-12-21 | 1973-04-03 | 19 | Details |
| US3679933A | Display system | Expired / Lapsed | 1969-12-22 | 1972-07-25 | 11 | Details |
| US3653456A | Control system for moving vehicle along a predetermined path | Expired / Lapsed | 1970-03-24 | 1972-04-04 | 11 | Details |
| US3648128A | An integrated complementary transistor circuit chip with po… | Expired / Lapsed | 1969-05-21 | 1972-03-07 | 4 | Details |
| US3622798A | Integrated logic circuit | Expired / Lapsed | 1969-10-23 | 1971-11-23 | 7 | Details |
| US3617822A | Semiconductor integrated circuit | Expired / Lapsed | 1969-10-29 | 1971-11-02 | 6 | Details |
| US3604624A | Counter for a tape record-playback mechanism | Expired / Lapsed | 1970-06-18 | 1971-09-14 | 11 | Details |
| US3585713A | Method of making connecting parts of semiconductor devices … | Expired / Lapsed | 1969-03-24 | 1971-06-22 | 0 | Details |
| US3585291A | Magnetic recording and reproducing system with tape-to-head… | Expired / Lapsed | 1968-09-17 | 1971-06-15 | 13 | Details |
| US3582924A | Displacement measuring instrument | Expired / Lapsed | 1969-05-13 | 1971-06-01 | 88 | Details |
| US3575731A | Methods of manufacturing semiconductor devices | Expired / Lapsed | 1968-02-28 | 1971-04-20 | 0 | Details |
| US3553498A | Magnetoresistance element | Expired / Lapsed | 1968-02-12 | 1971-01-05 | 12 | Details |
| US3537073A | Number display system eliminating futile zeros | Expired / Lapsed | 1966-12-13 | 1970-10-27 | 0 | Details |
| US3501832A | Method of making electrical wiring and wiring connections f… | Expired / Lapsed | 1967-02-20 | 1970-03-24 | 0 | Details |
| US3499109A | Avoidance of resolution degradation due to residual image p… | Expired / Lapsed | 1966-07-25 | 1970-03-03 | 0 | Details |
| US3449726A | Number display system | Expired / Lapsed | 1966-11-21 | 1969-06-10 | 0 | Details |
| US3431353A | Single motor magnetic tape recording and/or reproducing sys… | Expired / Lapsed | 1965-08-26 | 1969-03-04 | 0 | Details |
| US3359365A | Recording and reproducing system | Expired / Lapsed | 1965-07-27 | 1967-12-19 | 2 | Details |
| US3308232A | Magnetic recording and reproducing device | Expired / Lapsed | 1963-12-06 | 1967-03-07 | 2 | Details |
| US3274111A | Magnetic recording medium with self-contained lubricant | Expired / Lapsed | 1963-09-05 | 1966-09-20 | 2 | Details |
| US3255303A | Color television recording and reproducing system | Expired / Lapsed | 1964-06-15 | 1966-06-07 | 2 | Details |
| US3188385A | Magnetic recording and reproducing system | Expired / Lapsed | 1962-06-15 | 1965-06-08 | 2 | Details |
| US3157817A | Transformer circuit for balancing current flow through para… | Expired / Lapsed | 1960-08-24 | 1964-11-17 | 2 | Details |
| US3102987A | Tuner having variable capacitance diode and saturable induc… | Expired / Lapsed | 1961-09-07 | 1963-09-03 | 2 | Details |
| US3054033A | Junction type semiconductor device | Expired / Lapsed | 1960-01-18 | 1962-09-11 | 0 | Details |
| US3033714A | Diode type semiconductor device | Expired / Lapsed | 1958-05-08 | 1962-05-08 | 2 | Details |