Issued Patents All Time
Showing 25 most recent of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9664881 | Imaging optical system | — | 2017-05-30 |
| 9581794 | Zoom lens system | Koichiro Hayakawa | 2017-02-28 |
| 8941925 | Zoom lens system | Toshiki Nakamura | 2015-01-27 |
| 8705331 | Optical element and objective lens through which a plurality of light beams having different design wavelengths pass | Koichi Maruyama, Yoshiyuki Tashiro | 2014-04-22 |
| 8699312 | Optical information recording/reproducing apparatus and objective optical system for the same | Shuichi Takeuchi | 2014-04-15 |
| 8514686 | Optical information recording/reproducing apparatus and objective optical system for the same | Shuichi Takeuchi | 2013-08-20 |
| 8279738 | Objective lens and optical information recording/reproducing device having the same | Satoshi Inoue, Shuichi Takeuchi | 2012-10-02 |
| 8189448 | Optical information recording/reproducing apparatus and objective optical system for the same | Shuichi Takeuchi | 2012-05-29 |
| 8072694 | Objective lens | Koichi Maruyama, Shuichi Takeuchi | 2011-12-06 |
| 8068401 | Objective optical system and optical information recording/reproducing device having the same | Shuichi Takeuchi, Yoshiyuki Tashiro | 2011-11-29 |
| 7990831 | Optical pickup device | Shuichi Takeuchi | 2011-08-02 |
| 7872958 | Optical information recording/reproducing device, optical element for the same, and design method of the same | Yoshiyuki Tashiro, Koichi Maruyama | 2011-01-18 |
| 7843792 | Optical information recording /reproducing device and objective lens for the same | Shuichi Takeuchi | 2010-11-30 |
| 7839752 | Optical disc drive and objective lens for the same | Koichi Maruyama, Shuichi Takeuchi, Yoshiyuki Tashiro | 2010-11-23 |
| 7839751 | Objective lens and optical system for optical pick-up | Koichi Maruyama, Shuichi Takeuchi | 2010-11-23 |
| 7830772 | Objective optical system and optical information recording/reproducing device having the same | Yoshiyuki Tashiro, Shuichi Takeuchi | 2010-11-09 |
| 7821906 | Objective lens for optical pick-up | Koichi Maruyama | 2010-10-26 |
| 7813252 | Optical pick-up | Shuichi Takeuchi | 2010-10-12 |
| 7778139 | Optical information recording/reproducing device and objective lens for the same | Shuichi Takeuchi | 2010-08-17 |
| 7742370 | Objective lens and optical information read/write device | Koichi Maruyama, Shuichi Takeuchi | 2010-06-22 |
| 7738345 | Optical disc drive and objective lens for the same | Koichi Maruyama, Shuichi Takeuchi, Yoshiyuki Tashiro | 2010-06-15 |
| 7433291 | Objective lens | Koichi Maruyama, Shuichi Takeuchi | 2008-10-07 |
| 7430159 | Optical pick-up and objective lens for use with different types of optical discs | Koichi Maruyama | 2008-09-30 |
| 7414948 | Objective lens | Koichi Maruyama, Shuichi Takeuchi | 2008-08-19 |
| 7280276 | Objective lens | Koichi Maruyama, Shuichi Takeuchi, Naohito Sasaki | 2007-10-09 |