Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12014761 | Optical disc device and recording and reproduction device | Masatoshi Yajima, Shinichi Konishi, Akihiko Nishioka | 2024-06-18 |
| 10636447 | Optical disc drive device and playback device | Masatoshi Yajima, Shinichi Konishi, Akihiko Nishioka | 2020-04-28 |
| 8898684 | Optical disc device including a carrier for holding optical discs in a stacked state | Hirokuni Hagita, Daichi Tamaki, Akihito YOSHIMI | 2014-11-25 |
| 8164998 | Optical disc device | Akira Yoshikawa, Katsuya Watanabe | 2012-04-24 |
| 8098556 | Optical disc device | Katsuya Watanabe, Shinichi Yamada | 2012-01-17 |
| 7969844 | Optical disc device | Katsuya Watanabe, Akira Yoshikawa, Eiji Ueda, Hiroshige Ishibashi | 2011-06-28 |
| 7936645 | Optical disc device | Katsuya Watanabe | 2011-05-03 |
| 7606121 | Optical disk drive with target focus control | Katsuya Watanabe | 2009-10-20 |
| 7586818 | Optical disc apparatus and semiconductor device | Kenji Fujiune, Katsuya Watanabe | 2009-09-08 |
| 7570551 | Servo position adjustment method and servo position adjustment device | Mamoru Shoji, Takahiro Sato | 2009-08-04 |
| 7539089 | Optical disc device | Kenji Fujiune, Takashi Kishimoto, Shin-ichi Yamada, Katsuya Watanabe, Akihiro Yasuda +2 more | 2009-05-26 |
| 7440362 | Optical disc drive which uses a train of pulses to shift the focus of a focusing section | Katsuya Watanabe, Shin-ichi Yamada, Kenji Fujiune | 2008-10-21 |
| 7406007 | Optical disc apparatus and spherical aberration correction controlling apparatus | Katsuya Watanabe, Kenji Kondo, Shin-ichi Yamada | 2008-07-29 |
| 7379398 | Optical disc apparatus, an optical disc method, and a semiconductor integrated circuit capable of adjusting a focus position of a light beam and a spherical aberration | Takeshi Shimamoto, Shin-ichi Yamada, Shin-ichi Kadowaki, Kenji Kondo, Katsuya Watanabe | 2008-05-27 |
| 7307933 | Optical disc drive | Kenji Fujiune, Katsuya Watanabe, Shin-ichi Yamada, Kenji Kondo | 2007-12-11 |
| 7283435 | Optical disc device | Kenji Fujiune, Takashi Kishimoto, Shin-ichi Yamada, Katsuya Watanabe, Akihiro Yasuda +2 more | 2007-10-16 |
| 7277365 | Optical information processing apparatus and method of processing optical information | Akihiro Yasuda, Shin-ichi Kadowaki, Kousei Sano | 2007-10-02 |
| 7257053 | Optical disc apparatus | Kenji Fujiune, Shin-ichi Yamada, Katsuya Watanabe | 2007-08-14 |
| 7242648 | Tracking error signal generation device, optical disc apparatus, tracking error signal generation method and tracking control method | Shin-ichi Yamada, Katsuya Watanabe, Kenji Kondo, Akira Yoshikawa | 2007-07-10 |
| 7239595 | Spherical aberration correction control device and optical disc apparatus | Katsuya Watanabe, Kenji Fujiune | 2007-07-03 |
| 7158452 | Focus control for optical disk unit | Hiromichi Ishibashi, Katsuya Watanabe, Kenji Fujiune, Shinichi Yamada | 2007-01-02 |
| 7065013 | Optical disk apparatus | Katsuhiko Yasuda, Kousei Sano, Daisuke Ogata | 2006-06-20 |
| 6934226 | Optical disk apparatus | Katsuhiko Yasuda, Kousei Sano, Daisuke Ogata | 2005-08-23 |
| 6925043 | Optical recording apparatus and method for controlling light source output using detected aberration | Daisuke Ogata, Katsuya Watanabe | 2005-08-02 |
| 6567357 | Optical disk apparatus | Takashi Kishimoto, Kenji Fujiune, Takeharu Yamamoto, Katsuya Watanabe | 2003-05-20 |