Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7406700 | Disk player for reducing focus servo characteristic | Hiroaki Iwaasa | 2008-07-29 |
| 7095574 | Optical pickup | Takahiro Niwaki | 2006-08-22 |
| 7046614 | Optical pickup | — | 2006-05-16 |
| 6693870 | Optical pickup device with high-frequency superposition circuit | Satoshi Takimoto, Tatsuya Ito | 2004-02-17 |