Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE50440 | Organic light emitting display device | Ki-Woog Song, Chang Wook Han, Hong-Seok Choi, Jeong-Dae Seo, Seok-Joon Oh +1 more | 2025-05-20 |
| 11005061 | Organic light emitting display device | Ki-Woog Song, Chang Wook Han, Hong-Seok Choi, Jeong-Dae Seo, Seok-Joon Oh +1 more | 2021-05-11 |
| 10985338 | Organic light emitting display device | Chang Wook Han, Hong-Seok Choi, Ki-Woog Song, So Yeon Ahn, Seung Hyun Kim | 2021-04-20 |
| 10818862 | Organic light emitting display device | Chang Wook Han, Hong-Seok Choi, Ki-Woog Song, So Yeon Ahn, Seung Hyun Kim | 2020-10-27 |
| 10586939 | Organic light emitting display device | Chang Wook Han, Hong-Seok Choi, Ki-Woog Song, So Yeon Ahn, Seung Hyun Kim | 2020-03-10 |
| 10431776 | White organic light emitting diode and display device using the same | Ki-Woog Song, Seung-Ryong Joung, Tae-Il Kum, So Yeon Ahn, Tae-Shick Kim | 2019-10-01 |
| 10355231 | Organic light emitting display device | Chang Wook Han, Hong-Seok Choi, Ki-Woog Song, So Yeon Ahn, Seung Hyun Kim | 2019-07-16 |
| 10347858 | White organic light emitting device | Ki-Woog Song, Youn-Seok Kam, Tae-Shick Kim, Se Ung Kim, Hyung June Kim | 2019-07-09 |
| 10177330 | Organic light emitting display device with two emission portions | Chang Wook Han, Hong-Seok Choi, Ki-Woog Song, So Yeon Ahn, Seung Hyun Kim | 2019-01-08 |
| 10157966 | Organic light emitting display device | Youn-Seok Kam, Chang Wook Han, Hong-Seok Choi, Seok-Joon Oh, Ki-Woog Song | 2018-12-18 |
| 9997739 | White organic light emitting device | Ki-Woog Song, Sung-Jae Ko | 2018-06-12 |
| 9966551 | White organic light emitting device | Ki-Woog Song, Youn-Seok Kam, Tae-Shick Kim, Se Ung Kim, Hyung June Kim | 2018-05-08 |
| 9859519 | Organic light emitting display device | Seunghyun Kim, Hongseok Choi, Tae-Seok Lim | 2018-01-02 |
| 9722199 | Organic light emitting display device | Seunghyun Kim, Hongseok Choi, Tae-Seok Lim | 2017-08-01 |
| 9685622 | White organic light emitting device | Ki-Woog Song, Youn-Seok Kam, Tae-Shick Kim, Se Ung Kim, Hyung June Kim | 2017-06-20 |
| 9431626 | Organic light emitting display device | Youn-Seok Kam, Chang Wook Han, Hong-Seok Choi, Seok-Joon Oh, Ki-Woog Song | 2016-08-30 |
| 9184405 | Organic light emitting display device | Ki-Woog Song, Seok-Joon Oh, Youn-Seok Kam, Dong Hyuk Kim, Seon-Keun YOO +1 more | 2015-11-10 |
| 9159957 | White organic light emitting device | Chang Oh Kim, Ki-Woog Song | 2015-10-13 |
| 9023489 | Red phosphorescent compounds and organic electroluminescent devices using the same | Jung Keun Kim, Jeong-Dae Seo, Hyun Cheol Jeong, Chun Gun Park, Jong-Kwan Bin +1 more | 2015-05-05 |
| 8963127 | White organic light emitting device | Chang Oh Kim | 2015-02-24 |
| 8956737 | Red phosphorescent compound and organic electroluminescent device using the same | Chun Gun Park, Jung Keun Kim, Hyun Cheol Jeong, Jong-Kwan Bin, Do-Han Kim +1 more | 2015-02-17 |
| 8912534 | Tandem white organic light emitting device | Chang Wook Han, Hong-Seok Choi, Ki-Woog Song, Hyung June Kim | 2014-12-16 |
| 8895969 | White organic light emitting device and display device using the same | Hwa-Kyung Kim, Jae-II Song, Sung-Jae Ko | 2014-11-25 |
| 8829504 | White organic light emitting device | Ki-Woog Song | 2014-09-09 |
| 8823019 | White organic light emitting device and display device using the same | Hwa-Kyung Kim, Byung Chul Ahn, Chang Wook Han, Hong-Seok Choi | 2014-09-02 |