Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4807216 | Recording disc playback apparatus | Ichiro Kawamura, Yoshitaka Fujioka, Noboru Okuno | 1989-02-21 |
| 4802155 | Recording disc playback apparatus | Ichiro Kawamura, Yoshitaka Fujioka, Noboru Okuno | 1989-01-31 |