Issued Patents All Time
Showing 26–50 of 177 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8441907 | Complex objective lens including saw-tooth diffractive element for using on blue, red and infrared lights | Toshiyasu Tanaka, Fumitomo Yamasaki | 2013-05-14 |
| 8432782 | Objective lens, optical head, optical disk apparatus, and information processing apparatus | Fumitomo Yamasaki, Kazuhiro Minami, Junichi Asada, Osamu Kajino, Noriaki Terahara +1 more | 2013-04-30 |
| 8411547 | Information recording medium, information supply system, and optical information device | Fumitomo Yamasaki, Kanji Wakabayashi, Toshiyasu Tanaka | 2013-04-02 |
| 8409686 | Optical recording medium and method for manufacturing the same | Hiroyasu Inoue, Takashi Kikukawa, Koji Mishima, Joji Anzai, Jun Nakano +2 more | 2013-04-02 |
| 8406110 | Objective lens element | Katsuhiko Hayashi, Yasuhiro Tanaka, Michihiro Yamagata | 2013-03-26 |
| 8395980 | Optical head device, optical information device, and information processing device | Joji Anzai, Yasumori Hino, Kousei Sano, Hideki Nakata, Keisuke Fujimoto +2 more | 2013-03-12 |
| 8391120 | Optical head, optical disc device and information processing device | Fumitomo Yamasaki, Kousei Sano, Tomoaki Tojo, Katsuhiko Hayashi | 2013-03-05 |
| 8385169 | Optical disc drive and optical information system | Kanji Wakabayashi, Fumitomo Yamasaki, Toshiyasu Tanaka | 2013-02-26 |
| RE43961 | Optical head device and diffractive element, optical information apparatus, computer, disc player, car navigation system, optical disc recorder and vehicle | — | 2013-02-05 |
| 8369200 | Optical recording medium, and optical information device | Joji Anzai, Masahiko Tsukuda, Yasumori Hino | 2013-02-05 |
| 8339924 | Optical pickup device capable of emitting first and second light beams having different wavelengths and including a light blocking member for blocking light of a specific wavelength, and a optical information device, computer, optical disk player, car navigation system, optical disk recorder, and optical disk server performing the same | Toshiyasu Tanaka | 2012-12-25 |
| 8325582 | Complex objective lens, optical head, optical information apparatus, computer, optical disk player, car navigation system, optical disk recorder, and optical disk server | — | 2012-12-04 |
| 8320227 | Objective lens unit, optical pickup, and optical information apparatus | Kanji Wakabayashi, Kousei Sano, Toshiyasu Tanaka, Keiichi Matsuzaki, Hidenori Wada | 2012-11-27 |
| 8305864 | Compound objective lens, optical head device, optical information device, and information processing device | Katsuhiko Hayashi, Fumitomo Yamasaki, Michihiro Yamagata | 2012-11-06 |
| 8300513 | Optical head, optical head manufacturing method and optical disc device | Fumitomo Yamasaki, Kanji Wakabayashi | 2012-10-30 |
| 8295150 | Optical information medium measurement method, optical information method, optical information medium, recording apparatus, and reproducing apparatus | Kousei Sano, Yasumori Hino | 2012-10-23 |
| 8289831 | Optical head, optical element with diffraction grating, optical disc device and information processing device | Fumitomo Yamasaki, Tomoaki Tojo | 2012-10-16 |
| 8264944 | Manufacturing method for optical recording medium, optical recording medium, optical information device, and information reproducing method | Joji Anzai, Masahiko Tsukuda, Yasumori Hino | 2012-09-11 |
| 8259551 | Optical recording medium, manufacturing method for optical recording medium, information recording/reproducing method and information recording/reproducing device | Joji Anzai | 2012-09-04 |
| 8254239 | Complex objective lens including saw-tooth diffractive element for using on blue, red and infrared lights | Toshiyasu Tanaka, Fumitomo Yamasaki | 2012-08-28 |
| 8238218 | Optical pickup, optical information device, computer, optical disk player, car navigation system, optical disk recorder, and optical disk server | Toshiyasu Tanaka, Kanji Wakabayashi, Fumitomo Yamasaki, Osamu Kajino | 2012-08-07 |
| 8228774 | Optical information medium measurement method, optical information medium, recording apparatus and reproducing apparatus | Kousei Sano, Yasumori Hino | 2012-07-24 |
| RE43540 | Optical pickup, optical disc drive device, and optical information device | Keiichi Matsuzaki, Toshiyasu Tanaka, Kousei Sano, Kanji Wakabayashi, Hidenori Wada | 2012-07-24 |
| 8218418 | Optical information medium measurement method, optical information medium, recording apparatus, and reproducing apparatus | Kousei Sano, Yasumori Hino | 2012-07-10 |
| 8206805 | Optical recording medium, and method for producing optical recording medium | Joji Anzai, Hiroyasu Inoue, Takashi Kikukawa, Koji Mishima, Jun Nakano +2 more | 2012-06-26 |