Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6006078 | Receiver with improved lock-up time and high tuning stability | Yuji Yamamoto | 1999-12-21 |
| 5745845 | Receiver with automatic receiving-station switching function | Shoji Suenaga, Yuji Yamamoto, Takashi Miyake | 1998-04-28 |
| 5731741 | Receiver frequency synthesizer-tuner providing high speed tuning | Yuji Yamamoto | 1998-03-24 |
| 5390342 | Receiver using selective diversity receiving system | Masami Takayama | 1995-02-14 |
| 5263184 | Noise reducing circuit for a receiver using a fuzzy controller | Tetsuo Nakamura, Koichi Kasa, Masahide Terada | 1993-11-16 |
| 5220687 | Radio receiver having switch for switching between a wide filter and a narrow filter | Koichi Kasa, Kiichiro Akiyama | 1993-06-15 |
| 5201062 | Noise reducing circuit | Tetsuo Nakamura, Koichi Kasa | 1993-04-06 |
| 4776040 | Superheterodyne receiver | Hideki Iwasaki | 1988-10-04 |
| 4759079 | Random noise detecting system and method | — | 1988-07-19 |
| 4691356 | AM/FM synchronizing circuit | — | 1987-09-01 |
| 4648114 | AM stereo demodulator | — | 1987-03-03 |
| 4633497 | Separation control circuit | — | 1986-12-30 |
| 4368355 | AM Stereophonic signal receiver with electric field strength detection | — | 1983-01-11 |