Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5856965 | Optical disc readout apparatus for different types of optical discs | Yoichi Tsuchiya, Yasuyuki Kanou | 1999-01-05 |
| 5787061 | Optical disc recording reproducing apparatus recording/reproducing information to/from optical discs according to different standards | Yoichi Tsuchiya, Yasuyuki Kanou, Shuichi Ichiura | 1998-07-28 |
| 5777970 | Optical disk readout apparatus | Yoichi Tsuchiya, Shuichi Ichiura, Tateo Toyama, Katsutoshi Hibino | 1998-07-07 |
| 5687154 | Optical pickup device which can be adapted to plurality of types of optical disks | Yoichi Tsuchiya | 1997-11-11 |