Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4320534 | Loudness control circuit | Koichi Sakai | 1982-03-16 |
| 4195203 | Noise cancelling system for FM receiver | Koichi Sakai, Shinji Kitahara, Kozo Suzuki | 1980-03-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4320534 | Loudness control circuit | Koichi Sakai | 1982-03-16 |
| 4195203 | Noise cancelling system for FM receiver | Koichi Sakai, Shinji Kitahara, Kozo Suzuki | 1980-03-25 |