Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7889621 | Objective lens device, optical pickup device, optical-disc driving device and driving method of objective lens | Noriaki Nishi, Kenji Yamamoto, Fumiaki Nakano | 2011-02-15 |