Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6558574 | Red phosphor having effective emission at low voltages and method for preparing the same using conductive luminescent material | Ji-hye Gwak, Yong Wan Jin, V. A. Vorobyov | 2003-05-06 |
| 6544437 | Yttrium silicate based phosphor having effective emission at low voltages and method for synthesizing the same | Ji-hye Gwak, Yong Wan Jin, V. A. Vorobyov, E. G. Morozov | 2003-04-08 |