Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8339922 | Optical pickup apparatus | Tohru Hotta, Ryoichi Kawasaki | 2012-12-25 |
| 7558184 | Optical pickup device | Kenji Nagatomi, Seiji Kajiyama | 2009-07-07 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8339922 | Optical pickup apparatus | Tohru Hotta, Ryoichi Kawasaki | 2012-12-25 |
| 7558184 | Optical pickup device | Kenji Nagatomi, Seiji Kajiyama | 2009-07-07 |