Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6728193 | Optical pickup device and optical disc driving device | Kazuya Tsunoda | 2004-04-27 |
| 6693871 | Integrated unit, optical pickup, and optical recording medium drive device | — | 2004-02-17 |
| 6646975 | Semiconductor laser array and its manufacturing method, optical integrated unit and optical pickup | Kazushige Mori, Hideo Shiozawa | 2003-11-11 |
| 6496469 | Integrated unit, optical pickup, and optical recording medium drive device | — | 2002-12-17 |