Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12281248 | Organic light-emitting element using polycyclic aromatic derivative compound | Sung-Hoon JOO, Byung-sun YANG, Su Jin Kim, Ji Hwan Kim, Sung-eun CHOI +6 more | 2025-04-22 |
| 12137613 | Polycyclic compound and organoelectro luminescent device using same | Bong-ki SHIN, Sung-Hoon JOO, Byung-sun YANG, Ji Hwan Kim, Sung-eun CHOI | 2024-11-05 |
| 12010915 | Organic light-emitting diode having long lifespan, low voltage, and high efficiency property | Soon-Wook Cha, Sang Woo Park, Jung-Ho Yoo, Ji Hwan Kim, Sung Woo Kim +1 more | 2024-06-11 |
| 11985891 | Polycyclic aromatic compounds and organic electroluminescent devices using the same | Sunghoon Joo, Ji Hwan Kim, Byung-sun YANG, Sungeun Choi, Su Jin Kim +1 more | 2024-05-14 |
| 11482676 | Light emitting diode including boron compound | Sung-Hoon JOO, Ji Hwan Kim, Byung-sun YANG, Sungeun Choi, Su Jin Kim +11 more | 2022-10-25 |
| 11456428 | Indolocarbazole derivatives and organic electroluminescent devices using the same | Sunghoon Joo, Ji Hwan Kim, Byung-sun YANG, Sungeun Choi, Su Jin Kim | 2022-09-27 |
| 11133472 | Organic light-emitting diode having long lifespan, low voltage, and high efficiency property | Soon-Wook Cha, Sang Woo Park, Jung-Ho Yoo, Ji Hwan Kim, Sung Woo Kim +1 more | 2021-09-28 |
| 10981938 | Polycyclic aromatic compounds and organic electroluminescent devices using the same | Sunghoon Joo, Ji Hwan Kim, Byung-sun YANG, Sungeun Choi, Su Jin Kim +1 more | 2021-04-20 |
| 10797259 | Organic light-emitting diode with high efficiency | Soon-Wook Cha, Sang Woo Park, Jung-Ho Yoo, Ji Hwan Kim, Sung Woo Kim | 2020-10-06 |
| 9787548 | Fast service discovery method and apparatus in dynamic resource environment using hierarchical bloom filters | Sangil Lee, Cheolmin Park, In-Young Ko | 2017-10-10 |