Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6808826 | Blue electroluminescence compound for an organic electroluminescence device and the organic electroluminescence device using the same | Sung Han Kim, Han-sung Yu, Yun-Hi Kim, Dong Cheol Shin, Hyun Wook LEE +1 more | 2004-10-26 |
| 6730419 | Blue light emitting compound and organic electroluminescent device employing the same as color developing substance | Geon Hee Kim, Sung Han Kim, Yun-Hi Kim, Dong Cheol Shin, Hyung Sun Kim +1 more | 2004-05-04 |
| 6686066 | Light-emitting compound and display device adopting light-emitting compound as color-developing substance | Yun-Hi Kim, Dong Cheol Shin, Jun Hwan Ahn, Han-sung Yu, Jung-hyun Lee | 2004-02-03 |