Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4424465 | Piezoelectric vibration transducer | Hiroji Ohigashi, Toshiharu Nakanishi | 1984-01-03 |
| 4395652 | Ultrasonic transducer element | Toshiharu Nakanishi, Hiroji Ohigashi | 1983-07-26 |
| 4383194 | Electro-acoustic transducer element | Hiroji Ohigashi, Joshiharu Nakanishi | 1983-05-10 |
| 4296349 | Ultrasonic transducer | Toshiharu Nakanishi, Hiroji Ohigashi | 1981-10-20 |