Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6667943 | Optical disc apparatus | Koichi Maruyama, Hisashi Konno, Wataru Kubo, Hiroshi Nishikawa, Hiroshi Yamamoto | 2003-12-23 |
| 6650604 | Optical head of disk drive | — | 2003-11-18 |
| 6515947 | Optical disc drive | — | 2003-02-04 |