Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7511405 | Piezoelectric vibrator and method of fabricating piezoelectric vibrator, and oscillator, electric apparatus, and radio wave timepiece having piezoelectric vibrator | Yasuo Kawada, Sadao Oku | 2009-03-31 |