Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7978590 | Optical pickup apparatus, reproducing apparatus, recording apparatus, and tracking error signal generation method | — | 2011-07-12 |
| 7939612 | Radically polymerizable compound having a cyclic dithiocarbonate group | Yasuyuki OYAMA, Kazufumi Kai | 2011-05-10 |