Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10725236 | Light cylinder, dispenser, and light cylinder manufacturing method | Heon Cheol Kim | 2020-07-28 |
| 9977170 | Light cylinder and light device using the same | Heon Cheol Kim | 2018-05-22 |
| 7568827 | Light guide member and backlight unit including light guide member | Dong-Ho Lee, Won Ki Cho | 2009-08-04 |
| 7397619 | Prism sheet having concave pentagonal | Chong-Pil Pae, Min-Cheol Kook | 2008-07-08 |