Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |