Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6961981 | Method of producing a piezoelectric resonator | Mitsuru Nagai | 2005-11-08 |
| 6661162 | Piezoelectric resonator and method of producing the same | Mitsuru Nagai | 2003-12-09 |