Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829209 | Ultrasonic motor with stator projections and at least two concentric rings of electrodes | Osamu Kawasaki, Ritsuo Inaba, Katsu Takeda | 1989-05-09 |
AT
Akira Tokushima
Overall (1989): #134,310 of 140,708Top 100%
1
Patents 1989