Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6495947 | Piezoelectric ceramic composition, and high power output transformer made of the same composition | Jong Sun Kim, Choong Sik Yoo, Yong-Woo Lee | 2002-12-17 |
| 6492763 | Piezoelectric ceramic composition, and high power output transformer made of the same composition | Jong Sun Kim, Choong Sik Yoo, Yong-Woo Lee | 2002-12-10 |