Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |