Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8064315 | Condensing optical device, optical pickup, and optical disc apparatus | — | 2011-11-22 |
| 7924684 | Object lens, optical pickup, and optical disc device | Kazumasa Kaneda, Yoshito Asoma, Kazuyuki Takahashi | 2011-04-12 |