Issued Patents All Time
Showing 26–50 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7428193 | Optical pickup device and optical recording medium reproducing device | — | 2008-09-23 |
| 7428207 | Aberration correcting device and optical recording medium reproducing apparatus | Makoto Sato | 2008-09-23 |
| 7307769 | Hologram recording medium, recording/reproducing method and recording/reproducing apparatus | — | 2007-12-11 |
| 7262820 | Liquid crystal panel, optical pickup, and information reproducing apparatus | — | 2007-08-28 |
| 7242510 | Aberration correction element, optical pickup, and information equipment | — | 2007-07-10 |
| 7206277 | Optical pickup device and focal error detecting device therefor and wave aberration and focal error detecting device therefor | Takuma Yanagisawa | 2007-04-17 |
| 7170845 | Aberration correcting apparatus | — | 2007-01-30 |
| 7170661 | Hologram recording medium and recording and reproducing system | Michio Sakano, Satoru Tanaka, Akihiro Tachibana, Yoshihisa Kubota, Yoshihisa Itoh +3 more | 2007-01-30 |
| 7151595 | Focus error detecting device and optical pickup device having the same | — | 2006-12-19 |
| 7139234 | Optical pickup | Ikuya Kikuchi | 2006-11-21 |
| 7116612 | Optical pickup device driven by an error signal obtained from an optical detector's output signals | Yoshitsugu Araki | 2006-10-03 |
| 7110343 | Spherical aberration correction apparatus | — | 2006-09-19 |
| 7031038 | Hologram apparatus capable of detecting and correcting distortion of hologram image | Akihiro Tachibana, Yoshihisa Kubota | 2006-04-18 |
| 7016269 | Optical pickup apparatus and focusing control method | Ikuya Kikuchi | 2006-03-21 |
| 7012722 | Holographic recording apparatus | — | 2006-03-14 |
| 6967908 | Optical pickup device with focus error detecting optical element and method for focus error detection | Hajime Koyanagi | 2005-11-22 |
| 6909686 | Aberration correcting optical unit, optical pickup apparatus and information recording/reproducing apparatus with single and multi-layer electrodes | Masayuki Iwasaki | 2005-06-21 |
| 6882482 | Liquid-crystal lens and method and apparatus for driving the same | — | 2005-04-19 |
| 6859429 | Aberration correcting unit, optical pickup apparatus, and recording/reproducing apparatus | Masayuki Iwasaki | 2005-02-22 |
| 6801491 | Focus error detecting apparatus of optical pickup with a light separating and astigmatism generation optical element and detection method thereof | Takuma Yanagisawa, Sakashi Ohtaki | 2004-10-05 |
| 6690500 | Aberration correction apparatus and method | Masayuki Iwasaki, Yoshitsugu Araki | 2004-02-10 |
| 6678232 | Aberration correcting element and assembly | Yoshitsugu Araki | 2004-01-13 |
| 6628589 | Optical reproducing aberration compensation system having appropriate correction signals applied to a liquid crystal detector | Masayuki Iwasaki | 2003-09-30 |
| 6594221 | Optical pickup device | — | 2003-07-15 |
| 6370095 | Aberration correcting apparatus and information recording medium play-back apparatus | — | 2002-04-09 |