Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8053093 | Organometallic complex, method of preparing the same and organic light emitting device comprising the same | Jung-Han Shin, Hee-Yeon Kim, Chang-Ho Lee, Hee-Joo Ko | 2011-11-08 |
| 8021764 | Phenylcarbazole-based compound and organic electroluminescent device employing the same | Seok-Hwan Hwang, Young-Kook Kim, Chang-Ho Lee, Seok-Jong Lee, Hee-Yeon Kim | 2011-09-20 |
| 8021765 | Phenylcarbazole-based compound and organic electroluminescent device employing the same | Seok-Hwan Hwang, Young-Kook Kim, Chang-Ho Lee, Seok-Jong Lee, Hee-Yeon Kim | 2011-09-20 |
| 7875369 | Heterocycle-containing organometallic complex and organic light emitting device including the same | Jung-Han Shin, Hee-Yeon Kim, Chang-Ho Lee, Hee-Joo Ko | 2011-01-25 |
| 7868321 | Organic light emitting device and flat display including the same | Chang-Ho Lee, Hee-Yeon Kim, Jung-Han Shin, Hee-Joo Ko | 2011-01-11 |
| 7824780 | Imidazopyrimidine-based compound and organic light-emitting device employing organic layer including the same | Hee-Yeon Kim, Jung-Han Shin, Chang-Ho Lee, Hee-Joo Ko | 2010-11-02 |
| 7737627 | Fluorene-based compound and organic electroluminescent display device using the same | Seok-Hwan Hwang, Seok-Jong Lee, Young-Kook Kim, Hee-Yeon Kim | 2010-06-15 |
| 7732598 | Triazine-based compound, method of making the same, and an organic light-emitting device including the same | Jung-Han Shin, Seok-Jong Lee, Chang-Ho Lee, Seok-Hwan Hwang, Young-Kook Kim +1 more | 2010-06-08 |
| 7622584 | Imidazopyridine-based compound and organic light emitting diode including organic layer comprising the imidazopyridine-based compound | Hee-Yeon Kim, Jung-Han Shin, Chang-Ho Lee, Hee-Joo Ko | 2009-11-24 |
| 7585573 | Ir compound and organic electroluminescent device using the same | Seok-Jong Lee, Hee-Yeon Kim, Young-Kook Kim, Seok-Hwan Hwang, Dae-Yup Shin +2 more | 2009-09-08 |
| 7582366 | Difluoropyridine-based compound and organic electroluminescent device using the same | Seok-Hwan Hwang, Young-Kook Kim, Chang-Ho Lee, Seok-Jong Lee, Hee-Yeon Kim +1 more | 2009-09-01 |
| 7431997 | Phenylcarbazole compounds and organic electroluminescence devices using the same | Seok-Hwan Hwang, Seok-Jong Lee, Young-Kook Kim, Hee-Yeon Kim, Chang-Ho Lee | 2008-10-07 |
| 7351481 | Imidazole ring-containing compound and organic electroluminescence display device | Seok-Jong Lee, Young-Kook Kim, Seok-Hwan Hwang, Hee-Yeon Kim, Young Rag Do +1 more | 2008-04-01 |
| 6824712 | Selectively light-absorptive material, coating composition containing the same, and filter manufactured using the coating composition for color displays | Jin-bum Park, Geun-taek Bae, Ho Chan Lee | 2004-11-30 |
| 5324515 | Cosmetic material obtained from a lactic acid fermentation broth | Ho Sung Lee | 1994-06-28 |