Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5527481 | Piezoelectric ceramic composition | Satoshi Otsu, Fumikazu Yamane | 1996-06-18 |
| 4989302 | Method for manufacturing piezoelectric buzzer | Toshio Abe, Seiichi Takahashi, Hitoshi Saito, Seizo Tanaka, Yasuyuki Suzuki | 1991-02-05 |
| 4965483 | Piezoelectric buzzer | Toshio Abe, Seiichi Takahashi, Hitoshi Saito, Seizo Tanaka, Yasuyuki Suzuki | 1990-10-23 |