Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7247976 | Piezoelectric vibrator | Norikazu Sashida, Shigeo Ishii, Yoshiyuki Watanabe | 2007-07-24 |
| 7180225 | Piezoelectric vibrator | Norikazu Sashida, Shigeo Ishii, Yoshiyuki Watanabe | 2007-02-20 |