Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4815063 | Disc motor control circuit for controlling the rotation of a disc in a disc playing device | Sadayuki Narusawa | 1989-03-21 |
SA
Shinzi Aoshima
Overall (1989): #58,182 of 140,708Top 45%
1
Patents 1989