Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9581735 | Backlight unit including array of hyperbolically-shaped micro lenses | Byoung-Mook Kim, Kwang-Seung Park, Byung Su Park, Sang Choll Han, Jin Hyun Kim | 2017-02-28 |
| 9134463 | Optical film having improved optical performance, and backlight unit comprising the same | Byung Mook Kim, Kwang-Seung Park, Byung Su Park, Sang Choll Han, Jin Hyun Kim | 2015-09-15 |
| 8896925 | Micro-lens array sheet and backlight unit comprising the same | Sang Choll Han | 2014-11-25 |
| 8870399 | Backlight unit comprising condensing film having hetero-conic lenses | Kwang-Seung Park, Sang Choll Han, Sang Eun An | 2014-10-28 |
| 8727579 | Light extraction member and organic light emitting diode including the same | Sang Choll Han | 2014-05-20 |
| 8418504 | Method of fabricating optical fiber or optical device doped with reduced metal ion and/or rare earth ion | Won-Taek Han, Tae-Jung Ahn | 2013-04-16 |
| 7985358 | Process of making mold for optical film | Sang Choll Han, Jung Ko, Seung-Tae Oh, Byung Su Park | 2011-07-26 |
| 6441893 | Measurement method of resonant nonlinearity in a nonlinear optical fiber using a long period fiber grating pair | Won-Taek Han | 2002-08-27 |