Issued Patents All Time
Showing 25 most recent of 177 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11475917 | Objective lens, optical head device, optical information device, and optical disk system | Yasushi Kobayashi, Kazuhiro Minami | 2022-10-18 |
| 11335372 | Optical disk reproducing device | Tsuyoshi Nakasendo | 2022-05-17 |
| 9508379 | Recording apparatus | Kousei Sano, Fumitomo Yamasaki, Kanji Wakabayashi | 2016-11-29 |
| 9484054 | Optical disc information device and information processing device | Kanji Wakabayashi, Kousei Sano, Fumitomo Yamasaki, Toshiyasu Tanaka | 2016-11-01 |
| 9418695 | Optical information apparatus and information processing apparatus | Fumitomo Yamasaki, Kousei Sano, Kanji Wakabayashi, Toshiyasu Tanaka | 2016-08-16 |
| 9310536 | Objective lens element | Katsuhiko Hayashi, Yasuhiro Tanaka, Michihiro Yamagata | 2016-04-12 |
| 9196286 | Optical disk information device and information processing device | Kanji Wakabayashi, Kousei Sano | 2015-11-24 |
| 8995246 | Optical head, objective lens, optical disc device, computer, optical disc player, and optical disc recorder | Fumitomo Yamasaki | 2015-03-31 |
| 8953428 | Objective lens, optical head, optical disk device, and information processing device | Fumitomo Yamasaki, Kazuhiro Minami | 2015-02-10 |
| 8923105 | Optical information device, cross-talk reduction method, computer, player, and recorder | Kousei Sano, Kanji Wakabayashi | 2014-12-30 |
| 8797834 | Objective lens, optical head, optical disk device, and information processing device | Fumitomo Yamasaki, Hiroshi Shiroiwa, Junichi Asada, Osamu Kajino, Noriaki Terahara +1 more | 2014-08-05 |
| 8760989 | Objective lens element | Katsuhiko Hayashi, Yasuhiro Tanaka, Michihiro Yamagata, Kazuhiko Ishimaru | 2014-06-24 |
| 8755259 | Optical element | Kuzuhiro Minami, Fumitomo Yamasaki | 2014-06-17 |
| 8681592 | Objective lens element and optical head device including the same | Kazuhiro Minami, Fumitomo Yamasaki, Katsuhiko Hayashi | 2014-03-25 |
| 8681593 | Objective lens, optical head and optical disk device | Fumitomo Yamasaki, Katsuhiko Hayashi, Yoshifumi Takasu | 2014-03-25 |
| 8614938 | Objective lens unit, optical pickup, and optical information apparatus | Kanji Wakabayashi, Kousei Sano, Toshiyasu Tanaka, Keiichi Matsuzaki, Hidenori Wada | 2013-12-24 |
| 8611199 | Objective lens element and optical pickup device | Katsuhiko Hayashi, Yasuhiro Tanaka, Michihiro Yamagata | 2013-12-17 |
| 8526292 | Manufacturing method for optical recording medium, optical recording medium, optical information device, and information reproducing method | Joji Anzai, Masahiko Tsukuda, Yasumori Hino | 2013-09-03 |
| 8509047 | Optical head device and optical information device using the same, computer, optical disk player, car navigation system, optical disk recorder, and optical disk server | — | 2013-08-13 |
| 8483023 | Optical head, diffraction device, objective lens, and optical disc apparatus | Fumitomo Yamasaki, Katsuhiko Hayashi | 2013-07-09 |
| 8483031 | Optical head device, optical information device and information processing device | Kousei Sano | 2013-07-09 |
| 8477584 | Optical head, optical disc drive, computer, optical discplayer and optical disc recorder | Fumitomo Yamasaki, Kanji Wakabayashi, Toshiyasu Tanaka | 2013-07-02 |
| 8456978 | Objective lens, optical head apparatus, optical information apparatus and information processing apparatus | Kazuhiro Minami | 2013-06-04 |
| 8456971 | Optical disk driving apparatus, optical disk driving system, vehicle equipped with optical disk driving system, method of correcting spherical aberration in optical disk driving apparatus, program and recording medium | Fumitomo Yamasaki, Toshiyasu Tanaka, Kanji Wakabayashi | 2013-06-04 |
| 8451708 | Manufacturing method for optical recording medium, optical recording medium, optical information device, and information reproducing method | Joji Anzai, Masahiko Tsukuda, Yasumori Hino | 2013-05-28 |