Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12101075 | Piezoelectric device and manufacturing method of the same | Tetsuya Watanabe, Takahiro Ohtsuka, Kazuhiko Osawa, Kazuhiro Hirota | 2024-09-24 |
| 10840882 | Crystal unit and manufacturing method thereof | Koji Toshikawa, Shinobu Yoshida, Hirokazu Iwata, Tetsuya Watanabe, Kazuhiro Hirota | 2020-11-17 |
| 10763821 | Crystal resonator | Shigetaka Kaga, Kazuhiro Hirota | 2020-09-01 |
| 10277197 | Piezoelectric vibrating piece and piezoelectric device | Shigetaka Kaga, Kazuhiro Hirota, Masaaki Nakahara | 2019-04-30 |
| 10250225 | AT-cut crystal element, crystal resonator and crystal unit | Yoshiharu Sato, Hirokazu Iwata, Kazuhiro Hirota | 2019-04-02 |