Issued Patents All Time
Showing 1–25 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12313973 | Insulating layer for multilayer printed circuit board, multilayer printed circuit board comprising same, and method for producing same | Jeong Wook MUN, Woo Jae Jeong, Jee Hyeon Hwang, Eun Byurl CHO, Jeong Hyuk Ahn | 2025-05-27 |
| 9608205 | Organic compound and organic light emitting device using the same | Sung Kil Hong, Hye-Young Jang, Dong-Seob Jeong | 2017-03-28 |
| 9493383 | Organic compound and organic light emitting device using the same | Sung Kil Hong, Hye-Young Jang, Dong-Seob Jeong | 2016-11-15 |
| 9159351 | Perpendicular magnetic recording medium and method of manufacturing the same | Kazuaki Sakamoto, Takahiro Onoue, Masafumi Ishiyama, Teiichiro Umezawa, Kenji Ayama | 2015-10-13 |
| 9012040 | Anthracene derivative and an organic electronic device using the same | Se-Hwan Son, Dae Woong Lee, Sang Young Jeon, Hye-Young Jang | 2015-04-21 |
| 8957407 | Anthracene derivatives, preparation method thereof and organic light emitting diode using the same | Hye-Young Jang, Jae-Chol Lee, Jae-Soon Bae, Dong-Seob Jeong, Tae Yoon Park | 2015-02-17 |
| 8846212 | Organic metal complexes derivative and organic light emitting devices using the same | Dae Woong Lee, Jae-Soon Bae, Jae-Chol Lee, Hyun Seok Nam, Seong So Kim | 2014-09-30 |
| 8758911 | Perpendicular magnetic recording medium and perpendicular magnetic recording medium manufacturing method | Yoshiaki Sonobe | 2014-06-24 |
| RE44824 | Pyrene derivatives and organic electronic device using pyrene derivatives | Dong Hoon Lee, Jae-Soon Bae, Dae Woong Lee, Jung Bum Kim | 2014-04-08 |
| 8673460 | Heterocyclic derivative and organic light emitting device using same | Ji Eun Kim, Se-Hwan Son, Jun-Gi Jang | 2014-03-18 |
| 8586968 | Organic light emitting diode having high efficiency and process for fabricating the same | Jun-Gi Jang, Chang Hwan Kim, Dong-Seob Jeong, Sang Young Jeon, Wook Dong Cho +2 more | 2013-11-19 |
| 8449989 | Organic compound and organic light emitting device using the same | Min Jeong Lee, Yeon Hwan Kim, Jun-Gi Jang | 2013-05-28 |
| 8431257 | Perpendicular magnetic recording medium | Hi Shin, Tomoko Seki, Satoshi Ishii | 2013-04-30 |
| 8395143 | Compound and organic light emitting device using the same | Jae-Chol Lee, Sung Kil Hong, Tae Yoon Park | 2013-03-12 |
| 8344368 | Fused cyclic compound and organic electronic device | Jae-Chol Lee, Ji Eun Kim, Hyun Seok Nam, Jun-Gi Jang, Byung Sun Jeon | 2013-01-01 |
| 8329316 | Tetraphenylnaphalene derivatives and organic light emitting diode using the same | Yeon Hwan Kim, Dong Hoon Lee, Hye-Young Jang, Sung Kil Hong, Sung-Jin Yeo +1 more | 2012-12-11 |
| 8298683 | Organic compound and organic light emitting device using the same | Sung Kil Hong, Hye-Young Jang, Dong-Seob Jeong | 2012-10-30 |
| 8298689 | Method of manufacturing a perpendicular magnetic recording medium | Yoshiaki Sonobe | 2012-10-30 |
| 8222634 | Anthracene derivatives and organic electronic device using the same | Dong Hoon Lee, Jae-Chol Lee, Jae-Soon Bae, Jun-Gi Jang, Dae Woong Lee | 2012-07-17 |
| 8198801 | Materials for injecting or transporting holes and organic electroluminescence devices using the same | Ji Eun Kim, Jae-Chol Lee, Jae-Soon Bae, Jun-Gi Jang, Sang Young Jeon +4 more | 2012-06-12 |
| 8197951 | Emitting material and organic light emitting diode using the same | Hye-Young Jang, Sung Kil Hong, Sung-Jin Yeo, Sang Young Jeon | 2012-06-12 |
| 8173272 | Diamine derivatives, preparation method thereof and organic electronic device using the same | Hye-Young Jang, Jae-Chol Lee, Jin Kyoon Park, Ji Eun Kim, Tae Yoon Park +3 more | 2012-05-08 |
| 8173273 | Anthracene derivatives, method for preparation thereof, and organic electronic device using the same | Ji Eun Kim, Tae Yoon Park, Hye-Young Jang, Jae-Chol Lee, Sung Kil Hong +1 more | 2012-05-08 |
| 8137823 | Anthracene derivatives, process for preparation thereof, and organic electronic light emitting device using the same | Ji Eun Kim, Jae-Chol Lee, Tae Yoon Park, Dae Woong Lee, Sung Kil Hong +3 more | 2012-03-20 |
| 8026514 | Diamine derivatives and organic electronic device using the same | Hye-Young Jang, Jae-Chol Lee, Ji Eun Kim, Seong So Kim, Jin Kyoon Park +5 more | 2011-09-27 |