Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8000202 | Apparatus for recording/reproducing information on/from an optical disc having focus control capabilities | Katsuya Watanabe, Shinichi Yamada, Kenji Fujiune | 2011-08-16 |
| 7480232 | Optical disc apparatus | Katsuya Watanabe, Takeharu Yamamoto, Takashi Kishimoto, Kenji Fujiune | 2009-01-20 |
| 7349298 | Optical disc drive including detection and correction of spherical aberration | Katsuya Watanabe, Shinichi Yamada, Kosei Sano | 2008-03-25 |
| 7327642 | Method of moving a beam spot between information storage layers of an optical disk | Shinichi Yamada, Katsuya Watanabe, Kenji Fujiune, Kenji Kondo, Takashi Kishimoto +1 more | 2008-02-05 |
| 7130250 | Optical head and optical disk apparatus for performing focus pull in | Kenji Fujiune, Kenji Kondo, Shinichi Yamada, Katsuya Watanabe | 2006-10-31 |
| 7054241 | Optical disc apparatus | Kenji Kondo, Kenji Fujiune, Shinichi Yamada, Katsuya Watanabe | 2006-05-30 |
| 6925048 | Optical disc apparatus | Katsuya Watanabe, Takeharu Yamamoto, Takashi Kishimoto, Kenji Fujiune | 2005-08-02 |