Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810923 | Vibration wave motor | Takayuki Tsukimoto, Takuo Okuno, Kazuhiro Izukawa | 1989-03-07 |
IO
Ichiro Okumura
Overall (1989): #102,588 of 140,708Top 75%
1
Patents 1989