Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6777657 | Focusing controller for focus jump control between recording layers of multilayer disk | Yoshimichi Nishio, Yoshihiro Hashizuka, Kazunori Matsuo, Takeshi Sato, Hitoshi Yamazaki +3 more | 2004-08-17 |
| 6680886 | Liquid crystal tilt servo apparatus | Shinichi Naohara, Takeshi Sato, Hitoshi Yamazaki, Norio Matsuda | 2004-01-20 |
| 6552984 | Liquid crystal tilt servo apparatus | Hitoshi Yamazaki, Takeshi Sato, Yuichi Kimikawa, Motoi Kimura | 2003-04-22 |
| 6295256 | Focusing bias adjusting apparatus and method in optical recording medium playing apparatus | Yuichi Kimikawa, Motoi Kimura, Hitoshi Yamazaki, Alex Bradshaw | 2001-09-25 |