Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE50505 | Organic light emitting display device for enhancing efficiency | Heedong Choi, Seunghyun Kim | 2025-07-22 |
| 10170721 | Organic light emitting display device having hole transport layers with different thickness | Heedong Choi, Seunghyun Kim | 2019-01-01 |
| 9853231 | Organic light emitting display device for enhancing efficiency | Heedong Choi, Seunghyun Kim | 2017-12-26 |
| 9793489 | Pyrene compound and organic light emitting diode device including the same | Shinhan Kim, Jeongdae Seo, Hyoseok Kim, Eunju Jeon | 2017-10-17 |
| 9773983 | Organic light emitting diode device | Hyeseung Kang, Taeil Kum, Hyungjune Kim, Jungsoo Park | 2017-09-26 |
| 9741957 | Organic light emitting display apparatus | Heedong Choi, Seunghyun Kim | 2017-08-22 |
| 9281487 | White organic light emitting diode device | Shinhan Kim, Byungchul Ahn, Changwook Han, Dohyung Kim, Hongseok Choi +6 more | 2016-03-08 |
| 9147846 | Pyrene compound and organic light emitting diode device including the same | Shinhan Kim, Jeongdae Seo, Hyoseok Kim, Eunju Jeon | 2015-09-29 |