Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5200665 | Ultrasonic actuator | — | 1993-04-06 |
| 5073739 | Vibration-coupling type ultrasonic actuator and method for operating the same | Kazuhide Sano | 1991-12-17 |
| 4882500 | Method for converting standing wave vibrations into motion and standing wave motor therefor | — | 1989-11-21 |
| 4344392 | Spark-ignition internal combustion engine | Yasuo Takagi | 1982-08-17 |