Issued Patents 2004
Showing 1–2 of 2 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 |