Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888514 | Driving apparatus for ultrasonic motor | Ken Takahashi, Ritsuo Inaba, Nobukazu Sugano, Horiyuki Harao, Yukihiro Matsuyama +1 more | 1989-12-19 |
| 4853578 | Driving apparatus for ultrasonic motor | Kenichiroh Takahashi, Noriyuki Harao | 1989-08-01 |
| 4833359 | Driving apparatus for ultrasonic motor | Noriyuki Harao, Kenichiroh Takahashi | 1989-05-23 |