Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10978635 | Piezoelectric element, piezoelectric actuator and piezoelectric transformer | Kiyohito Shibata, Norifumi Iwaki, Toru Ezaki | 2021-04-13 |
| 5936327 | Electro-mechanical energy conversion device for vibration driven actuator and its manufacturing method | Shigeru Takahashi, Sadakatsu Okura | 1999-08-10 |
| 5669127 | Method of manufacturing an electro-mechanical energy conversion device for vibration driven actuator | Shigeru Takahashi, Sadakatsu Okura | 1997-09-23 |