Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5351221 | Apparatus for applying bias magnetic field including a rotatable magnet and a plurality of coils for controlling the rotation of the magnet | — | 1994-09-27 |
| 5303089 | Objective lens drive unit | — | 1994-04-12 |
| 5140572 | Optical pickup device having fixed and movable optical systems | Hideaki Kibune | 1992-08-18 |
| 5128806 | Apparatus for driving optical system | — | 1992-07-07 |