Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6683014 | Piezoelectric ceramic composition and piezoelectric ceramic device using the same | Dong Hwan Seo, Kang Heon Hur, Jong-Kuk Hong | 2004-01-27 |
| 6656378 | Piezoelectric ceramic composition reducing leakage current and piezoelectric device using the same | Kang Heon Hur, Jong-Kuk Hong, Dong Hwan Seo | 2003-12-02 |