Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11139796 | Crystal vibration element, and crystal vibrator equipped with crystal vibration element | Toru Kidu, Takashi Hase, Hiroaki Kaida, Shigeaki Sugimura | 2021-10-05 |
| 11075615 | Crystal vibration element, and crystal vibrator equipped with crystal vibration element | Toru Kidu, Takashi Hase, Hiroaki Kaida, Shigeaki Sugimura | 2021-07-27 |
| 11038485 | Crystal vibration element, and crystal vibrator equipped with crystal vibration element | Toru Kidu, Takashi Hase, Hiroaki Kaida, Shigeaki Sugimura | 2021-06-15 |