Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8890431 | LED driving apparatus and method | Change Seok Lee, Deuk Hee Park, Sang Hyun Cha, Jae Shin Lee | 2014-11-18 |
| 8796942 | LED circuit | Deuk Hee Park, Sang Hyun Cha, Jae Shin Lee, Change Seok Lee | 2014-08-05 |
| 8779682 | Illumination driving apparatus | Joong Ho Choi, Deuk Hee Park, Sang Hyun Cha, Chang Seok Lee | 2014-07-15 |
| 8749147 | LED circuit | Deuk Hee Park, Sang Hyun Cha, Jae Shin Lee, Change Seok Lee | 2014-06-10 |
| 8471788 | Organic light emitting diode driver | Sang Hyun Cha, Gyu-Hyeong Cho, Jin Yong Jeon, Jun Hyeok Yang, Hyun Sik Kim +1 more | 2013-06-25 |