Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8012792 | Composite phosphor powder, light emitting device using the same and method for manufacturing composite phoshpor powder | Chulsoo Yoon, Chang Hoon Kwak, Yun Seup Chung | 2011-09-06 |
| 7911127 | Phosphor blend for wavelength conversion and white light emitting device using the same | Jong Rak Sohn, Il Woo Park, Yun Seup Chung, Chang Hoon Kwak, Chul Soo Yoon | 2011-03-22 |