Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7986595 | Optical pickup and optical device for three different types of optical discs | Kazumasa Kaneda, Kazuyuki Takahashi | 2011-07-26 |
| 7924684 | Object lens, optical pickup, and optical disc device | Kazumasa Kaneda, Toshifumi Yasui, Kazuyuki Takahashi | 2011-04-12 |