Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7619958 | Pickup apparatus for multi-layer optical disc | Takayuki Hayashi, Takuo Tanaka, Satoshi Kawata | 2009-11-17 |
| 5781352 | Objective lens supporting device | Toshinori Chino, Rikio Tsuchiya, Hirotoshi Sugiura | 1998-07-14 |