Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5635641 | Vibratory gyroscope with reduced stress and stable characteristics | Katsumi Fujimoto | 1997-06-03 |
| 4449019 | Piezoelectric loudspeaker | Nobuhiko Nakagawa, Hideo Adachi, Tadashi Takaya | 1984-05-15 |
| 4353045 | Ladder type filter | Toshiharu Matsui | 1982-10-05 |
| 4323865 | Ladder-type piezoelectric filter | Yasuhiro Tanaka | 1982-04-06 |