Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4908812 | Synchronizing signal reproducing circuit in a disc playback device | Sadayuki Narusawa | 1990-03-13 |
| 4815063 | Disc motor control circuit for controlling the rotation of a disc in a disc playing device | Sadayuki Narusawa | 1989-03-21 |