Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7990834 | Optical pickup device recording and/or reproducing information on and/or from a plurality of kinds of recording media | Tetsuo Ueyama, Osamu Miyazaki, Yasuo Nakata, Tomio Mashiyama | 2011-08-02 |