Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5519677 | Biaxial actuator for driving an objective lens in both focusing and tracking directions | Keiichi Shibata, Masashi Matsumura | 1996-05-21 |
| 5313334 | Objective lens moving actuator | Takamichi Tomiyama | 1994-05-17 |