Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11107637 | Variable capacitance element | — | 2021-08-31 |
| 11012787 | Piezoelectric element, piezoelectric microphone, piezoelectric resonator and method for manufacturing piezoelectric element | Keiichi Umeda | 2021-05-18 |