Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5656095 | Ultrasonic washing method and apparatus using continuous high frequency ultrasonic waves and intermittent low frequency ultrasonic waves | Toshiaki Miyamoto, Hideo Kouzaka | 1997-08-12 |