Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8929003 | Projection lens unit for pico-projector | Jin Ho Kim, Sung-Hoon Hwang, Seung Ki Hong | 2015-01-06 |
| 8693112 | Projection lens unit for pico-projector | Jin Ho Kim, Sung-Hoon Hwang, Seung Ki Hong | 2014-04-08 |
| 8284493 | Projection lens unit for pico-projector | Young-Hun Lee, Sung-Hoon Hwang, Seung Ki Hong | 2012-10-09 |
| 7439938 | Multi-display apparatus having an optical path changing device | Kun-ho Cho, Dae-sik Kim, Tae Hee Kim | 2008-10-21 |
| 7411742 | Focusing lens for LED | Jin Ho Kim, Shung-Hoon Hwang | 2008-08-12 |
| 7367677 | High efficiency lighting system, scrolling unit and projection system employing the same | Dae-sik Kim, Yung-jun Park, Kun-ho Cho, Chong-sam Chung, Jong-Chul Choi +1 more | 2008-05-06 |
| 7327410 | High resolution 3-D image display with liquid crystal shutter array | Kun-ho Cho, Dao-sik Kim, Sung-ha Kim | 2008-02-05 |
| 7327409 | Projection type image display system capable of color scrolling | Dae-sik Kim, Kun-ho Cho, Sung-ha Kim | 2008-02-05 |
| 7298556 | Illuminating optical system, image display apparatus using same and image display method | Kun-ho Cho, Dae-sik Kim, Sung-ha Kim | 2007-11-20 |
| 7241027 | Illumination system providing light of Gaussian distribution, projection system, and method of forming color image | Kun-ho Cho, Dae-sik Kim, Sung-ha Kim | 2007-07-10 |
| 7226169 | Projection system using spatial filter | Dae-sik Kim, Kun-ho Cho, Sung-ha Kim | 2007-06-05 |
| 7175280 | Projection display with polarization beam splitter | Sung-ha Kim, Kun-ho Cho, Dae-sik Kim | 2007-02-13 |
| 7163293 | Projection system and method | Dae-sik Kim, Kun-ho Cho, Suna KIM | 2007-01-16 |
| 7150532 | Projection system with scrolling unit | Sung-ha Kim, Kun-ho Cho, Dae-sik Kim | 2006-12-19 |
| 7140737 | Projection system using spatial filter | Dae-sik Kim, Kun-ho Cho, Sung-ha Kim | 2006-11-28 |
| 7131734 | Projection system using spatial filter | Dae-sik Kim, Kun-ho Cho, Sung-ha Kim | 2006-11-07 |
| 7119964 | Color illuminating system and projection type image display apparatus using the same | Dae-sik Kim, Kun-ho Cho, Sung-ha Kim | 2006-10-10 |
| 7104651 | Color scrollable projection system | Dae-sik Kim, Kun-ho Cho, Sung-ha Kim | 2006-09-12 |
| 7097308 | Highly efficient projection system | Dae-sik Kim, Kun-ho Cho, Sung-ha Kim | 2006-08-29 |
| 7097309 | Lighting system and compact projection system | Young-chol Lee, Il-kweon Moon | 2006-08-29 |
| 7066604 | Light pipe, color illumination system adopting the light pipe, and projection system employing the color illumination system | Sung-ha Kim, Kun-ho Cho, Dae-sik Kim | 2006-06-27 |
| 7066602 | Projection type image display system capable of color scrolling | Kun-ho Cho, Dae-sik Kim, Sung-ha Kim | 2006-06-27 |
| 7048381 | Cylindrical lens array for scrolling colors, projection system using same, and scrolling method | Dae-sik Kim, Kun-ho Cho, Sung-ha Kim | 2006-05-23 |
| 6971748 | High-resolution display including pixel moving optical system | Kun-ho Cho, Dae-sik Kim, Sung-ha Kim, Tae Hee Kim | 2005-12-06 |
| 6921171 | Color scrolling projection system | Kun-ho Cho, Dae-sik Kim, Sung-ha Kim | 2005-07-26 |