Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7592741 | Piezoelectric device | Hideo Tanaya, Kazuya Hirasawa | 2009-09-22 |
| 7579748 | Piezoelectric device and method for manufacturing thereof | — | 2009-08-25 |
| 6248969 | Vacuum circuit breaker, and vacuum bulb and vacuum bulb electrode used therefor | Katsuhiro Komuro, Yoshitaka Kojima, Noboru Baba, Ryo Hiraga, Toru Tanimizu +3 more | 2001-06-19 |
| 5691521 | Vacuum circuit breaker with improved contact assembly | Katsuhiro Komuro, Yoshitaka Kojima, Yukio Kurosawa, Shunkichi Endoo, Tooru Tanimizu +1 more | 1997-11-25 |