Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8411544 | Optical disc reproduction apparatus | Noriyuki Masunari, Yorikazu Takao | 2013-04-02 |
| 8022847 | Signal processing device | Rie Kaihara | 2011-09-20 |
| 8004945 | Recording medium access device | Harumitsu Miyashita, Kohei Nakata, Hiroshi Ueda | 2011-08-23 |
| 7852728 | Digital signal reproducing apparatus | Tatsushi Hiraki, Yorikazu Takao | 2010-12-14 |
| 7778134 | Waveform equalization control device | Seiji Matsui | 2010-08-17 |
| 7558171 | Optical disc recording/playback apparatus | Toshihiko Takahashi, Hiroaki Hayashi, Teruhiko Izumi, Dai Ichiryu, Shinichi Konishi | 2009-07-07 |
| 7558177 | Optical disc playback apparatus | Shinichi Konishi | 2009-07-07 |
| 7539097 | Optical disk device | Toshihiko Takahashi, Teruhiko Izumi, Shinichi Konishi, Hironori Deguchi, Takamasa Sakai | 2009-05-26 |
| 7525887 | Playback signal processing apparatus and optical disc device | Toshihiko Takahashi, Kazutoshi Aida, Kouji Okamoto | 2009-04-28 |
| 7433286 | Jitter detection apparatus | Toshihiko Takahashi, Shinichi Konishi | 2008-10-07 |
| 7428195 | Information reproduction apparatus and information reproduction method | Kazutoshi Aida, Toshihiko Takahashi | 2008-09-23 |
| 7339872 | Optical disc device | — | 2008-03-04 |
| 7327658 | Wobble signal processing apparatus | Hiroki Mouri, Kouji Okamoto | 2008-02-05 |
| 7310292 | Optical disk reproducing device that demodulates digital data by switching between a channel bit frequency and a frequency that is half of the channel bit frequency | — | 2007-12-18 |
| 7254100 | Optical disk reproducing device selectively using a channel bit frequency or a frequency that is half of the channel bit frequency | — | 2007-08-07 |
| 7212476 | Optical disc reproducing device selectively using a channel bit frequency or a frequency that is half of the channel bit frequency | — | 2007-05-01 |
| 6999394 | Optical disc playback apparatus | Kouichi Urita, Shinichiro Sato | 2006-02-14 |
| 6963528 | Digital data reproduction apparatus | — | 2005-11-08 |
| 6792063 | Frequency control/phase synchronizing circuit | — | 2004-09-14 |
| 6674707 | Digital recorded data reproducing device | Koichi Urita, Shinichiro Sato, Yoshimasa Oda | 2004-01-06 |
| 6542039 | Phase-locked loop apparatus and method | — | 2003-04-01 |
| 6385239 | Adaptive equalizing circuit | Toshinori Okamoto | 2002-05-07 |