Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7990813 | Optical pickup device | Kazumi Takahashi, Seiichi Kato, Yasushi Kinoshita, Kazuhiro Todori | 2011-08-02 |
| 7873970 | Optical pickup device and optical disc drive apparatus | Satoshi Arai, Hiroaki Furuichi, Yoshio Oozeki, Masayuki Okamura, Kazumi Takahashi +1 more | 2011-01-18 |