Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9107256 | Light emitting diode lighting apparatus | Dae Sung Kang, Yun-whan Na, Yong Keun Jee, Ki-hong Moon, Chung Hee Lee | 2015-08-11 |
| 8643299 | LED lamp and driving circuit for the same | Yong Keun Jee, Byung-Kwan Song, Yun-whan Na, Jin Jong Kim, Sun Woo Im +1 more | 2014-02-04 |