Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7239596 | Optical pickup device and optical recording medium driving apparatus | Fumihiko Ito, Yoshinari Yokochi, Makoto Itonaga | 2007-07-03 |
| 7206275 | Optical pickup device | Makoto Itonaga | 2007-04-17 |