Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7889620 | Optical pickup device and optical disk device | Hideki Yoshinaka, Mayumi Tsukamoto, Satoshi Nagata, Eizo Ono | 2011-02-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7889620 | Optical pickup device and optical disk device | Hideki Yoshinaka, Mayumi Tsukamoto, Satoshi Nagata, Eizo Ono | 2011-02-15 |