Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5128581 | Piezoelectric acceleration sensor and piezoelectric acceleration sensor device | Shiro Nakayama, Katsuhiko Takahashi, Takayuki Imai | 1992-07-07 |
| 4924131 | Piezo-electric acceleration sensor | Shiro Nakayama, Shigemi Takahashi, Katsuhiko Takahashi, Toshimitu Hirayama, Masao Akutsu | 1990-05-08 |