Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5307417 | Sound system with howling-prevention function | Kazunaga Ida, Fumio Matsushita | 1994-04-26 |
| 5210857 | Data processing apparatus with noise avoidance | — | 1993-05-11 |
| 4891824 | Muting control circuit | Norimichi Katsumura, Nobuhiko Osawa, Kazuo Watanabe | 1990-01-02 |
| 4882546 | Demodulation clock generator circuit | Norimichi Katsumura, Nebuhiko Osawa, Kazuo Watanabe | 1989-11-21 |