Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5172023 | Ultrasonic motor | Yasuaki Kawai, Akihiro Takeuchi | 1992-12-15 |
| 4483179 | Method of and device for detection of knocking for internal combustion engine | Yujiro Oshima, Hiroharu Tokoro | 1984-11-20 |
| 4408479 | Knocking detecting device for internal combustion engines | Yujiro Oshima, Akihiro Takeuchi, Hiroharu Tokoro | 1983-10-11 |
| 4256987 | Constant current electrical circuit for driving piezoelectric transducer | Akihiro Takeuchi | 1981-03-17 |
| 4208917 | Device for inspecting spot welds | Shigetsune Aoyama | 1980-06-24 |