Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9508952 | Organic light emitting display device and method of manufacturing the same | Yong-Kyoung Koo | 2016-11-29 |
| 5149663 | Method for manufacturing a Bi-CMOS semiconductor device | Sang H. Chai, Yong-Seo Koo, Kee-Soo Nam | 1992-09-22 |