Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8222798 | Piezoelectric resonator and electrode structure thereof | Katsushi Yasuda, Jong Pil Lee, Jang Ho Park | 2012-07-17 |
| 8035282 | Piezoelectric vibrator and electrode structure of piezoelectric vibrator | Katsushi Yasuda, Jong Pil Lee, Jang Ho Park | 2011-10-11 |