Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857793 | Vibration wave motor | — | 1989-08-15 |
| 4810923 | Vibration wave motor | Takayuki Tsukimoto, Kazuhiro Izukawa, Ichiro Okumura | 1989-03-07 |
TO
Takuo Okuno
Overall (1989): #14,880 of 140,708Top 15%
2
Patents 1989