Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5404390 | Portable telephone set | — | 1995-04-04 |
| 5335368 | Portable radio apparatus having variable impedance matching circuit between antenna and radio circuit | — | 1994-08-02 |
| 5255001 | Antenna system for portable radio apparatus | Takao Ono | 1993-10-19 |
| 5193219 | Vehicular power booster circuitry for multi-level portable transceiver | — | 1993-03-09 |
| 5167514 | Plug and receptacle of a microstrip line connector | Takao Suzuki, Hiroshi Uesugi, Naoki Hirasawa, Hirofumi Matsumoto | 1992-12-01 |
| 5043651 | Apparatus for displaying the remaining charge of rechargeable battery | — | 1991-08-27 |
| 5040998 | Plug connector for microstrip line | Takao Suzuki, Naoki Hirasawa | 1991-08-20 |
| 4914714 | Portable radio communication apparatus having diversity reception function | — | 1990-04-03 |
| 4907122 | Relay circuit having a pulse generator for closing contacts | — | 1990-03-06 |
| 4866396 | Temperature stabilized RF detector | — | 1989-09-12 |
| 4850006 | Booster and charger unit used for hand-held portable telephone and having overheat protection circuit | Yutaka Sasaki | 1989-07-18 |
| 4820995 | Temperature stabilized RF detector | — | 1989-04-11 |
| 4810101 | Noise detection by sampling digital baseband signal at eye openings | Kouzou Kage | 1989-03-07 |
| 4736060 | Method for optical resolution of DL-cysteine and (R,S)-1-(1-naphthyl) ethylamine | Keizo Tomuro, Yoko Morimoto, Shigeyoshi Katoh | 1988-04-05 |
| 4709404 | Battery-powered radio communication apparatus capable of prolonging the communicable state thereof | Katsuji Kimura | 1987-11-24 |
| 4576132 | Engine starting air fuel ratio control system | Masataka Nakajima, Yasushi Mase | 1986-03-18 |
| 4572135 | Air-to-fuel ratio control system for an engine | Masataka Nakajima, Yasushi Mase | 1986-02-25 |
| 4510460 | Output power control circuit for power amplifier | — | 1985-04-09 |
| 4509165 | Miniaturized antenna duplexer using SAW filter | — | 1985-04-02 |