Issued Patents All Time
Showing 51–59 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7448758 | Illumination unit and projection type image display apparatus employing the same | Jong-Hoi Kim, Young-chol Lee, Won-Yong Lee | 2008-11-11 |
| 7357510 | Projection-type 3-D image display device using single projector | Tae Hee Kim | 2008-04-15 |
| 7350930 | Illuminating unit with reflective collimator and image projection system including the same | Dae-sik Kim, Su-gun Kim | 2008-04-01 |
| 7331694 | Illuminating unit and projection type image display apparatus using the same | Won-Yong Lee, Young-chol Lee | 2008-02-19 |
| 7331680 | Illumination unit and projection type image display apparatus employing the same | Young-chol Lee, Won-Yong Lee | 2008-02-19 |
| 7267446 | Projection display | Young-chol Lee, Won-Yong Lee, Kirill Sokolov | 2007-09-11 |
| 7267441 | Projection display | Young-chol Lee, Won-Yong Lee, Kirill Sokolov | 2007-09-11 |
| 7210788 | Color prism and projection-type image display apparatus employing the same | Young-chol Lee, Won-Yong Lee | 2007-05-01 |
| 7182497 | Illumination unit using LED and image projecting apparatus employing the same | Young-chol Lee, Won-Yong Lee | 2007-02-27 |