Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12428429 | Amine compound and organic light-emitting diode including same | Soon-Wook Cha, Sang Woo Park, Yoona Shin, Ji Hwan Kim, Sung Woo Kim | 2025-09-30 |
| 12284914 | Organic light-emitting compound and organic light-emitting diode comprising same | Soon-Wook Cha, Yoona Shin, Jea-Geon Lim, Sang Woo Park, Ji Hwan Kim +1 more | 2025-04-22 |
| 12114562 | Compound for organic light-emitting diode and long lifespan organic light-emitting diode comprising same | Soon-Wook Cha, Yoona Shin, Sung Woo Kim, Jiwon Lee, Seok-Bae Park +4 more | 2024-10-08 |
| 12010915 | Organic light-emitting diode having long lifespan, low voltage, and high efficiency property | Soon-Wook Cha, Sang Woo Park, Ji Hwan Kim, Sung Woo Kim, Hyeon-jun JO +1 more | 2024-06-11 |
| 11563181 | Amine compounds for organic light-emitting diode and organic light-emitting diode including the same | Soon-Wook Cha, Yoona Shin, Jea-Geon Lim, Sang Woo Park, Ji-Hwam Kim +1 more | 2023-01-24 |
| 11532792 | Organic light emitting diode having high efficiency | Soon-Wook Cha, Sang Woo Park, Yoona Shin, Yu-rim LEE, Sung Woo Kim +1 more | 2022-12-20 |
| 11279693 | Organic heterocyclic compound and light-emitting diode comprising same | Soon-Wook Cha, Ji Hwan Kim, Sang Woo Park, Yoona Shin, Jea-Geon Lim | 2022-03-22 |
| 11133472 | Organic light-emitting diode having long lifespan, low voltage, and high efficiency property | Soon-Wook Cha, Sang Woo Park, Ji Hwan Kim, Sung Woo Kim, Hyeon-jun JO +1 more | 2021-09-28 |
| 10797259 | Organic light-emitting diode with high efficiency | Soon-Wook Cha, Sang Woo Park, Ji Hwan Kim, Sung Woo Kim, Hyeon-jun JO | 2020-10-06 |
| 9440539 | Energy storage apparatus for railway vehicles by adopting a bidirectional DC-DC converter | Eun-Kyu Lee, Yong-Woo Lee, Tae Suk Kim, Kyoung-Min Kwon | 2016-09-13 |
| 9112015 | Semiconductor devices | Keum Seok Park, Woo Bin Song, Byeong-Chan Lee | 2015-08-18 |
| 8621797 | Steel structure including pre-stressing brackets for improving load-carrying capacity and serviceability | Sang-Hyo Kim, Jin Hee Ahn, Seung Soo Han, Chang Keon Cho, Kyu-Tae Choi | 2014-01-07 |