Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853579 | Drive method for ultrasonic motor providing enhanced stability of rotation | Osamu Kawasaki, Katsu Takeda, Ritsuo Inaba | 1989-08-01 |
TF
Tetsuji Fukada
Overall (1989): #51,804 of 140,708Top 40%
1
Patents 1989