Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9493702 | Garnet-based phosphor doped with thorium and light emitting device using the same | Seung Hyok Park, Jun-Hee Cho, Hye Min Boo, Sung Kyoung Jung | 2016-11-15 |
| 9328286 | Phosphor and light emitting device | Choong Youl Kim, Joong In An, Seung Hyok Park, Chang Hee Lee | 2016-05-03 |
| 8704255 | Phosphor and light emitting device | Choong Youl Kim, Joong In An, Seung Hyok Park, Chang Hee Lee | 2014-04-22 |
| 8013517 | Phosphor material, coating phosphor composition, and light emitting device | Choong Youl Kim, Sung Min Kong, Hee Seok Choi, Seung Hyok Park, Chang Hee Lee | 2011-09-06 |