Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9979303 | Primary side regulation power supply device | Hyun-Chul Eum, In-Ki PARK | 2018-05-22 |
| 8760082 | LED emitting device | Seunguk YANG, Byunghak AHN, Hak-Hee Lee | 2014-06-24 |
| 8519642 | LED light emitting device | Byunghak AHN, Hak-Hee Lee, Il Young Jung | 2013-08-27 |
| 8274235 | Inverter device and driving method thereof | Jae Soon Choi, Hak-Hee Lee, Il Young Jung | 2012-09-25 |