Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12289990 | Phenylcarbazole-based compounds and fluorene-based compounds and organic light emitting device and flat panel display device comprising the same | Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee | 2025-04-29 |
| 11950501 | Phenylcarbazole-based compounds and fluorene-based compounds and organic light emitting device and flat panel display device comprising the same | Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee | 2024-04-02 |
| 11502261 | Compound and organic light emitting device using the same | Wanpyo Hong, Kyung-Seok Jeong, Jin Joo Kim, Ok-Keun Song, Hongsik Yoon | 2022-11-15 |
| 11482678 | Phenylcarbazole-based compounds and fluorene-based compounds and organic light emitting device and flat panel display device comprising the same | Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee | 2022-10-25 |
| 11223017 | Organic light emitting device | Tae Yoon Park, Sang Young Jeon, Seong Mi Cho, Dong Hoon Lee | 2022-01-11 |
| 10573821 | Phenylcarbazole-based compounds and fluorene-based compounds and organic light emitting device and flat panel display device comprising the same | Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee | 2020-02-25 |
| 10454056 | Organic light emitting device | Sang Young Jeon, Boon Jae Jang, Minwoo CHOI, Hyeon Soo JEON | 2019-10-22 |
| 10211406 | Phenylcarbazole-based compounds and fluorene-based compounds and organic light emitting device and flat panel display device comprising the same | Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee | 2019-02-19 |
| 9917258 | Phenylcarbazole-based compounds and fluorene-based compounds and organic light emitting device and flat panel display device comprising the same | Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee | 2018-03-13 |
| 9478754 | Phenylcarbazole-based compounds and fluorene-based compounds and organic light emitting device and flat panel display device comprising the same | Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee | 2016-10-25 |
| 9349964 | Organic light emitting diode and manufacturing method thereof | Sung Kil Hong, Yun Hwan Kim, Tae Yoon Park | 2016-05-24 |
| 9196857 | Organic light emitting diode and method of manufacturing the same | Mi-Kyung Kim, Dong-Heon Kim, Jung-Ha Son, Jae-Hyun Kwak, Kyung-Hoon Choi +6 more | 2015-11-24 |
| 9150783 | Organic light emitting diode including organic layer comprising organic metal complex | Kyung-Hoon Choi, Kwan-Hee Lee, Choon-Woo Lim | 2015-10-06 |
| 8999524 | Organic light-emitting device | Dong-Heon Kim, Tae-Shick Kim, Kwan-Hee Lee, Jung-Ha Son, Jae-Hyun Kwak +2 more | 2015-04-07 |
| 8974922 | Phenylcarbazole-based compounds and fluorene-based compounds and organic light emitting device and flat panel display device comprising the same | Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee | 2015-03-10 |
| 8911881 | Organic light-emitting device | Jun-Yeob Lee, Yong-Joong Choi | 2014-12-16 |
| 8835019 | Organic light emitting device having an electron transport-emission layer and method of preparing the same | Kyung-Hoon Choi, Kwan-Hee Lee, Choon-Woo Lim | 2014-09-16 |
| 8691339 | Evaporating method for forming thin film | Ji-Hwan Yoon, Kwan-Hee Lee, Jae-Hyun Kwak, Dong-Hun Kim, Jung-Ha Son | 2014-04-08 |
| 8664016 | Organic light emitting diode and method of manufacturing the same | Mi-Kyung Kim, Dong-Heon Kim, Jung-Ha Son, Jae-Hyun Kwak, Kyung-Hoon Choi +6 more | 2014-03-04 |
| 8617721 | Organic light-emitting device | Tae-Shick Kim, Dong-Heon Kim, Kwan-Hee Lee, Mi-Kyung Kim | 2013-12-31 |
| 8466458 | Organic light-emitting device | Tae-Shick Kim, Dong-Heon Kim, Kwan-Hee Lee, Choon-Woo Lim, Jae-Hyun Kwak +4 more | 2013-06-18 |
| 8415687 | Organic light-emitting device | Mi-Kyung Kim, Dong-Heon Kim, Kwan-Hee Lee | 2013-04-09 |
| 8395145 | Top-emitting organic light-emitting device | Mie-Hwa Park, Kyung-Hoon Choi, Young-Suck Choi, Young Ho Park, Hee-Seong Jeong | 2013-03-12 |
| 8211233 | Evaporating method for forming thin film | Ji-Hwan Yoon, Kwan-Hee Lee, Jae-Hyun Kwak, Dong-Hun Kim, Jung-Ha Son | 2012-07-03 |
| 8188315 | Organic light emitting device and flat panel display device comprising the same | Seok-Hwan Hwang, Young-Kook Kim, Yoon-Hyun Kwak, Jong-Hyuk Lee, Kwan-Hee Lee | 2012-05-29 |