Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835755 | Recording disk reproducing apparatus having high-resolution A/D converter | — | 1989-05-30 |
| 4795958 | Servomechanism for recording disk reproducing system | Hiroshi Nakamura | 1989-01-03 |