Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE43179 | Optical disk drive for discriminating types of optical disks | Katsuya Watanabe, Takashi Kishimoto, Rie Takahashi | 2012-02-14 |
| 8031570 | Optical disk unit and driving method therefor | Katsuya Watanabe, Rie Takahashi, Takashi Kishimoto | 2011-10-04 |
| 7969844 | Optical disc device | Katsuya Watanabe, Akira Yoshikawa, Eiji Ueda, Yuuichi Kuze | 2011-06-28 |
| 7911907 | Optical disc judgment method and optical disc device | Katsuya Watanabe, Takashi Kishimoto, Rie Takahashi | 2011-03-22 |
| 7903515 | Optical disc drive | Kenichi Morikawa, Takahiro Sato, Yasuhiro Tai, Yoshiyuki Hashimoto | 2011-03-08 |
| 7804753 | Optical disk drive for discriminating types of optical disks | Katsuya Watanabe, Takashi Kishimoto, Rie Takahashi | 2010-09-28 |
| 7660209 | Optical disk drive | Katsuya Watanabe, Junichi Minamino, Takeshi Shimamoto | 2010-02-09 |
| 7027368 | Motor control apparatus, disk apparatus and acceleration detection device | Osamu Kajino, Yoshihiro Mushika | 2006-04-11 |
| 6876606 | Motor control apparatus, disk apparatus and acceleration detection device | Osamu Kajino, Yoshihiro Mushika | 2005-04-05 |