Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8054732 | Optical recording and reproducing apparatus having an optical pickup including a liquid crystal correcting element | Hisao Tanaka | 2011-11-08 |
| 8018814 | Aberration correction device, aberration correction method and optical pickup | Masakazu Ogasawara | 2011-09-13 |