Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6667943 | Optical disc apparatus | Koichi Maruyama, Hisashi Konno, Suguru Takishima, Hiroshi Nishikawa, Hiroshi Yamamoto | 2003-12-23 |
| 6567353 | Optical head with light receiving element surfaces divided into at least three light receiving areas | Hiroshi Nishikawa, Masato Noguchi | 2003-05-20 |
| 6529465 | Optical system for optical disk drive | Toshiyuki Kase, Hiroshi Nishikawa, Ryoichi Nakanishi, Amit Jain | 2003-03-04 |