Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681994 | Piezoelectric vibrator and acceleration sensor using the same | Takeshi Nakamura | 1997-10-28 |
| 5679896 | Piezoelectric vibrator and acceleration sensor using the same | Takeshi Nakamura | 1997-10-21 |
| 5652385 | Piezoelectric vibrator and acceleration sensor using the same | Takeshi Nakamura | 1997-07-29 |
| 5629483 | Piezoelectric vibrator and acceleration sensor using the same | Takeshi Nakamura | 1997-05-13 |