Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6246890 | Portable telephone with built-in charger | Takehiko Sato | 2001-06-12 |
| 5686816 | Charging control circuit | Takahiro Hayashi | 1997-11-11 |
| 5396652 | Transmitting power control unit having a constant output level throughout a predetermined frequency band | — | 1995-03-07 |
| 5373251 | Transmission output amplifier | Jun Sato, Shinichi Fujita | 1994-12-13 |
| 5351283 | Vehicle-mounted charging apparatus for portable telephone sets | — | 1994-09-27 |
| 5235289 | Transmission power amplifier device | — | 1993-08-10 |
| 4816782 | Modulation sensitivity correction circuit for voltage-controlled oscillator | Mikio Hanabusa | 1989-03-28 |