Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6870198 | Organic electroluminescent device using mixture of phosphorescent material as light-emitting substance | Mu-Hyun Kim, Byung-Doo Chin, Seong-Taek Lee, Jang-Hyuk Kwon | 2005-03-22 |
| 6853147 | Organic EL display device having organic soluble derivative layer | Mu-Hyun Kim, Jang-Hyuk Kwon | 2005-02-08 |