Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7249368 | Tuner apparatus | Kazuhiko Maejima, Toshiyuki Yamauchi | 2007-07-24 |
| 6628343 | Television signal reception circuit, automatic phase shift control circuit and equal amplitude addition circuit | Toshihiro Yamaguchi, Shinichi Kitazono | 2003-09-30 |
| 4859881 | Filter circuit | Yoshihiro Yamamoto, Tsutomu Kume, Nobuo Yamazaki, Fumiharu Hashimoto | 1989-08-22 |
| 4841461 | Filter adjustment apparatus and method | Yoshihiro Yamamoto, Tsutomu Kume, Nobuo Yamazaki, Fumiharu Hashimoto | 1989-06-20 |
| 4812773 | Filter adjustment apparatus and method | Yoshihiro Yamamoto, Tsutomu Kume, Nobuo Yamazaki, Fumiharu Hashimoto | 1989-03-14 |
| 4731592 | Voltage controllable oscillator | Akiro Sato, Jun Ono, Kenichiro Kumamoto | 1988-03-15 |
| 4691378 | Tuner for television receiver | Kenichiro Kumamoto, Akira Sato, Koichi Matsuda | 1987-09-01 |