Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7537714 | Yttrium based phosphors comprising conducting material, process for preparing the yttrium based phosphors and display device using the yttrium based phosphors | Sung-Ho Choi, Sang-Hyuk Lee, Sang Hoon Shin | 2009-05-26 |
| 6416688 | High luminance blue color fluorescent substance for low-voltage and manufacturing method of the same | Il Yu, Mi-Ran Song | 2002-07-09 |
| 6322725 | Low-voltage excited blue phosphor and method of preparing the same | Il Yu, Mi-Ran Song | 2001-11-27 |
| 6217795 | Low voltage blue emitting phosphor and method of preparing same | Il Yu, Mi-Ran Song | 2001-04-17 |
| 5608554 | LCD having a phosphor layer and a backlight source with a main emitting peak in the region of 380-420nm | Young Rag Do, Young-Chul You, Joa-Young Jeong | 1997-03-04 |