Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6577043 | Piezoelectric resonator and electronic device incorporating the same | Norimitsu Tsukai, Yukio Yoshino | 2003-06-10 |
| 6556103 | Piezoelectric resonator with electrode radius related to resonator thickness and vibration mode, and filter using the same | Akihiko Shibata, Noromitsu Tsukai | 2003-04-29 |