Tokyo Keiki Inc
Tokyo KeikActive Patents
0
Total Holdings
26
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| DE3720164A1 | Magnetic induction coupling system for contact-free transmi… | Expired / Lapsed | 1987-06-16 | — | 0 | Details |
| DE2421613A1 | METHOD AND DEVICE FOR CONTROLLING THE PIVOTING MOVEMENT OF … | Expired / Lapsed | 1974-05-04 | — | 0 | Details |
| GB1117885A | Spherical dielectric lens and method of making same | Expired / Lapsed | 1966-07-15 | — | 0 | Details |
| US5231997A | Heating apparatus and method for hyperthermia | Expired / Lapsed | 1991-02-28 | 1993-08-03 | 16 | Details |
| US5026959A | Microwave radiator for warming therapy | Expired / Lapsed | 1989-10-18 | 1991-06-25 | 20 | Details |
| US5023887A | Data transmission system using spread spectrum communication | Expired / Lapsed | 1990-02-12 | 1991-06-11 | 9 | Details |
| US4891483A | Heating apparatus for hyperthermia | Expired / Lapsed | 1986-06-25 | 1990-01-02 | 24 | Details |
| US4884580A | Hyperthermia device | Expired / Lapsed | 1988-09-30 | 1989-12-05 | 9 | Details |
| US4841990A | Applicator for use in hyperthermia | Expired / Lapsed | 1986-06-25 | 1989-06-27 | 7 | Details |
| US4690156A | Applicator for localized hyperthermia by electromagnetic wa… | Expired / Lapsed | 1985-03-01 | 1987-09-01 | 23 | Details |
| US4336594A | Automatic steering apparatus for ships | Expired / Lapsed | 1978-12-27 | 1982-06-22 | 9 | Details |
| USD254778S | Ultrasonic wave thickness meter | Expired / Lapsed | 1978-01-05 | 1980-04-22 | 1 | Details |
| US3949696A | Marine steering arrangement | Expired / Lapsed | 1974-09-23 | 1976-04-13 | 8 | Details |
| US3927635A | Marine autopilot system | Expired / Lapsed | 1974-09-27 | 1975-12-23 | 4 | Details |
| US3918296A | Pulse reflection type ultrasonic thickness meter | Expired / Lapsed | 1973-10-03 | 1975-11-11 | 6 | Details |
| US3852650A | Servo apparatus for marine autopilot | Expired / Lapsed | 1973-05-23 | 1974-12-03 | 5 | Details |
| US3770020A | Interface detector | Expired / Lapsed | 1972-05-02 | 1973-11-06 | 7 | Details |
| US3741014A | Ultrasonic current meter | Expired / Lapsed | 1971-06-16 | 1973-06-26 | 3 | Details |
| US3696282A | Marine autopilot system including mode engagement features | Expired / Lapsed | 1970-08-26 | 1972-10-03 | 5 | Details |
| US3679960A | Electric power source system for gyroscopic instrument | Expired / Lapsed | 1971-01-19 | 1972-07-25 | 2 | Details |
| US3665281A | Autopilot for ship | Expired / Lapsed | 1969-10-27 | 1972-05-23 | 5 | Details |
| US3629856A | Multichannel signal-processing system | Expired / Lapsed | 1970-03-19 | 1971-12-21 | 16 | Details |
| US3505577A | Adaptive control for ship steering whereby system is less s… | Expired / Lapsed | 1967-04-04 | 1970-04-07 | 0 | Details |
| US3327185A | Stepping motor control circuit | Expired / Lapsed | 1963-12-11 | 1967-06-20 | 2 | Details |
| US3233171A | Apparatus for detecting the presence, magnitude and directi… | Expired / Lapsed | 1961-09-13 | 1966-02-01 | 2 | Details |
| US3227935A | Servo system | Expired / Lapsed | 1963-01-16 | 1966-01-04 | 2 | Details |