Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11287260 | Vibrator device | Keiichi Yamaguchi, Seiichiro Ogura, Ryuta Nishizawa | 2022-03-29 |
| 11239407 | Frequency adjustment method of vibrator element | Keiichi Yamaguchi, Seiichiro Ogura, Ryuta Nishizawa | 2022-02-01 |