Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8335136 | Optical pickup apparatus | Chiaki Asakawa | 2012-12-18 |
| 8310911 | Optical pickup apparatus | Chiaki Asakawa | 2012-11-13 |
| 7365296 | Light reception output controlling apparatus of photo detector in optical pickup unit | Akira Tsukihashi, Shigeru Nakamura, Misao Kuramochi, Michiyoshi Sawada, Hiromitsu Kondo | 2008-04-29 |