Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11891361 | Heterocyclic compound and organic light emitting device comprising same | Hyun-Ju LA, Seong-Jong PARK, Won-Jang JEONG, Jin-Seok Choi, Dae-Hyuk CHOI | 2024-02-06 |
| 11665961 | Heterocyclic compound and organic light emitting device using same | Hyun-Ju LA, Yu-Jin HEO, Won-Jang JEONG, Jin-Seok Choi, Dae-Hyuk CHOI | 2023-05-30 |
| 11563185 | Heterocyclic compound and organic light-emitting device comprising same | Nam-Jin LEE, Min-Ji PARK, Won-Jang JEONG, Jin-Seok Choi, Dae-Hyuk CHOI | 2023-01-24 |
| 11552255 | Heterocyclic compound and organic light-emitting element using same | Hyun-Ju LA, Yu-Jin HEO, Won-Jang JEONG, Jin-Seok Choi, Dae-Hyuk CHOI | 2023-01-10 |
| 11515484 | Heterocyclic compound and organic light emitting element comprising same | Geon-Yu PARK, Young-Seok NO, Seung-Gyu YANG, Ju Hyon Cha, Dong-Jun KIM +1 more | 2022-11-29 |
| 11434228 | Heterocyclic compound and organic light emitting device comprising same | Gi-Back LEE, Seong-Jong PARK, Ji-Young Kim, Won-Jang JEONG, Jin-Seok Choi +1 more | 2022-09-06 |
| 11427562 | Heterocyclic compound, and organic light-emitting device using same | Han-Kook Oh, Jun-Tae MO, Yong-Geun JUNG, Won-Jang JEONG, Jin-Seok Choi +1 more | 2022-08-30 |
| 11248008 | Heterocyclic compound and organic light emitting element using same | Won-Jang JEONG, Yun-Ji Lee, Gi-Back LEE, Jin-Seok Choi, Dae-Hyuk CHOI | 2022-02-15 |
| 11239427 | Heterocyclic compound and organic light emitting device using same | Gi-Back LEE, Han-Kook Oh, Yong-Geun JUNG, Jun-Tae MO, Won-Jang JEONG +2 more | 2022-02-01 |
| 11141781 | Roller assembly, casting apparatus, and roller separating method for same | Kyung Shik OH, Young Hoon Kang, Ki Hwan Joung | 2021-10-12 |
| 11133477 | Heterocyclic compound and organic light emitting element using same | Yun-Ji Lee, Jun-Tae MO, Yong-Geun JUNG, Won-Jang JEONG, Jin-Seok Choi +1 more | 2021-09-28 |
| 10930857 | Heterocyclic compound and organic light emitting device using same | Jun-Tae MO, Yong-Geun JUNG, Won-Jang JEONG, Dae-Hyuk CHOI | 2021-02-23 |
| 10913109 | Vertical semi-continuous casting equipment and vertical semi-continuous casting method | Kyung Shik OH, Young Hoon Kang, Ki Hwan Joung, Un-Kwan Cho | 2021-02-09 |
| 10672993 | Nitrogen-containing polycyclic compound and organic light emitting element using same | Young-Seok NO, Kee Yong Kim, Hyo-Kyun HAM, Jin-Seok Choi, Dae-Hyuk CHOI +1 more | 2020-06-02 |
| 10644244 | Heterocyclic compound and organic light emitting device using same | Jung-hyun Lee, Young-Seok NO, Geon-Yu PARK, Dong-Jun KIM, Kee Yong Kim +3 more | 2020-05-05 |
| 10454043 | Heterocyclic compound and organic light-emitting element using same | Mi Jin Kim, Kee Yong Kim, Yang-Soo Ha, Jin-Seok Choi, Dae-Hyuk CHOI +1 more | 2019-10-22 |
| 10446765 | Heterocyclic compound and organic light emitting element using same | Jung-hyun Lee, Su Jin Jung, Sang-Kyu Kang, Kee Yong Kim, Dong-Jun KIM +3 more | 2019-10-15 |
| 10381577 | Hetero-cyclic compound and organic light emitting device using the same | Geon-Yu PARK, Han-Kook Oh, Yun-Ji Lee, Jae Yeol MA, Dong-Jun KIM +2 more | 2019-08-13 |
| 10344030 | Heterocyclic compound and organic light emitting device using same | Jung-hyun Lee, Kee Yong Kim, Yong-Hoon An, Jin-Seok Choi, Dae-Hyuk CHOI +1 more | 2019-07-09 |
| 10177319 | Nitrogen-containing polycyclic compound and organic light emitting element using same | Young-Seok NO, Kee Yong Kim, Hyo-Kyun HAM, Jin-Seok Choi, Dae-Hyuk CHOI +1 more | 2019-01-08 |
| 10026908 | Hetero-cyclic compound and organic light emitting device using the same | Geon-Yu PARK, Jae Yeol MA, Dong-Jun KIM, Jin-Seok Choi, Dae-Hyuk CHOI | 2018-07-17 |
| 9899600 | Multicyclic aromatic compound and organic light emitting device using the same | Do-Hyung Lee, Dong-Jun KIM, Young-Seok NO, Hyundong Chun | 2018-02-20 |
| 9728731 | Heterocyclic compound and organic light emitting device using same | Hyun-Ju LA, Young-Seok NO, Mi Jin Kim, Kee Yong Kim, Jin-Seok Choi +2 more | 2017-08-08 |
| 9333594 | Lead-free solder composition for glass | Hae Won Jeong, Hyun Dal Park, Tae Seung Lee, Seung Kyu Kim, Hong Nho Joo +4 more | 2016-05-10 |
| 7406850 | Hot rolled strip cooling device with coolant header | Pil-Jong Lee, Myung Jong Cho, Hui-Seop Kwon, Sung Sup Eom | 2008-08-05 |