Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866690 | Vibration imparted focus search devices in an optical type disc playback device | Takuya Tamaru | 1989-09-12 |
TF
Tatsuo Fushiki
Overall (1989): #53,710 of 140,708Top 40%
1
Patents 1989