Issued Patents All Time
Showing 1–25 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9251836 | Optical disc apparatus, sheet member, and method for cleaning objective lens | Hideki Nakata, Kousei Sano | 2016-02-02 |
| 8493824 | Optical head and optical disc device | Fumitomo Yamasaki, Akihiro Arai | 2013-07-23 |
| 8325581 | Optical head and optical disc device | Fumitomo Yamasaki, Akihiro Arai | 2012-12-04 |
| 8306393 | Information recording apparatus, information copying system, method for copying information, program and computer readable recording medium | Fumitomo Yamasaki, Takao Hayashi | 2012-11-06 |
| 8299782 | Position sensor, optical head device, head moving mechanism, information recording and reproduction device and position control system | Osamu Mizuno, Hiroshi Yamamoto, Takuya Wada, Kanji Wakabayashi, Takatoshi Yukimasa | 2012-10-30 |
| 8279721 | Near-field recording head capable of directly forming light source in slider | Masahiro Birukawa | 2012-10-02 |
| 8233371 | Objective lens, optical head and optical disc device | Fumitomo Yamasaki, Katsuhiko Hayashi, Sadao Mizuno | 2012-07-31 |
| 8208359 | Optical head, optical information recording and reproducing device, and optical information system device | Makoto Takashima, Eishin Mori, Kousei Sano, Joji Anzai, Kenichi Shinotani | 2012-06-26 |
| 8156515 | Optical recording medium and reproducing device | Takayuki Nagata, Joji Anzai | 2012-04-10 |
| 8130624 | Optical head device for forming light spot on disc-shaped information medium | Hideki Nakata | 2012-03-06 |
| 8108884 | Optical disk recording/reproducing device and optical head | Hideki Nakata, Masayuki Shiwa | 2012-01-31 |
| 8068403 | Optical head | Takayuki Nagata, Joji Anzai, Eishin Mori, Kousei Sano, Yoshiaki Komma +1 more | 2011-11-29 |
| 8045426 | Optical head device, and recording and/or reproducing device | Eishin Mori, Kousei Sano, Joji Anzai | 2011-10-25 |
| 7952979 | Coupling lens, optical head and optical disc device | Fumitomo Yamasaki, Sadao Mizuno, Katsuhiko Hayashi | 2011-05-31 |
| 7952978 | Optical control device, optical information recording/reproducing device, optical information recording medium and optical head control method | Joji Anzai, Eishin Mori, Takayuki Nagata | 2011-05-31 |
| 7882513 | Optical disc device and method for controlling optical disc device | Makoto Takashima, Takao Hayashi, Akira Yoshikawa, Tomio Yamamoto, Kouretsu Boku | 2011-02-01 |
| 7869331 | Optical head, control method for optical head, and optical information processing apparatus | Eishin Mori, Akihiro Arai, Joji Anzai | 2011-01-11 |
| 7848208 | Optical head device, aberration correction method and optical information processing apparatus | Eishin Mori, Joji Anzai, Kousei Sano | 2010-12-07 |
| 7817524 | Optical head device with multiple diffracting planes, and an optical information apparatus, computer, video recording/reproducing apparatus, video reproducing apparatus, server, and car navigation system including the same | Hidenori Wada, Keiichi Matsuzaki, Yukihiro CHOKYU | 2010-10-19 |
| 7812491 | Stepping motor | Yoshinori Katada, Mitsuru Yanagisawa, Ryuta Yamawaki, Hideki Nakata, Masayuki Shiwa +1 more | 2010-10-12 |
| 7778140 | Optical head device and optical information device | Kousei Sano, Takayuki Nagata, Joji Anzai, Fumitomo Yamasaki | 2010-08-17 |
| 7773468 | Optical head and optical information recorder/reproducer | Fumitomo Yamasaki, Eishin Mori, Akihiro Arai, Joji Anzai | 2010-08-10 |
| 7643391 | Optical head, optical-information medium driving device, and sensor | Takao Hayashi, Tohru Nakamura | 2010-01-05 |
| 7519979 | Optical head having a position detection portion and optical disk device utilizing the optical head | Osamu Mizuno, Takeharu Yamamoto | 2009-04-14 |
| 7366072 | Optical heads device and control method of optical head | Fumitomo Yamasaki, Takuya Wada | 2008-04-29 |