Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6544433 | Piezoelectric ceramic composition, and high power output transformer made of the same composition | Jong Sun Kim, Choong Sik Yoo, Yong-Woo Lee | 2003-04-08 |
| 6533957 | Piezoelectric ceramic composition, and high power output transformer made of the same composition | Jong Sun Kim, Choong Sik Yoo, Yong-Woo Lee | 2003-03-18 |