Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8672485 | Illuminating unit and display apparatus including the same | Sung Tae Kim, Jeong-ho Nho, Won-Yong Lee, Kyoung-choul Jang, Seok Chan HONG +1 more | 2014-03-18 |
| 8388148 | Optical system including a blocking unit | Sang-Ik Kim, Kyoung-choul Jang, Boing-jo KANG, Wook Jeon | 2013-03-05 |
| 7972015 | Projection type image display apparatus | Jong Soo Lee, Sang-Ik Kim, Jae-geun LIM, Jung-Hyeon Kim | 2011-07-05 |
| 7830599 | Projection-type display apparatus and display method thereof | Jong Soo Lee, Kwan-heung Kim, Jung-Hyeon Kim | 2010-11-09 |
| 7075727 | Projection lens system for image projection apparatus | Yong-dok Cha | 2006-07-11 |
| 6935752 | Image projecting apparatus | — | 2005-08-30 |
| 6450645 | Reflection type projector including a sheet polarization beam splitter and a correction mechanism which corrects an aberration of the incident light caused by the sheet polarization beam splitter | — | 2002-09-17 |
| 6439724 | Color projector | Dae-Je Chin | 2002-08-27 |
| 6354707 | Liquid crystal display projection system | Dae-Je Chin | 2002-03-12 |