Issued Patents All Time
Showing 126–139 of 139 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6359850 | Optical pickup having catadioptric objective lens | Chong-sam Chung, Chul-woo Lee, Kun-ho Cho | 2002-03-19 |
| 6279019 | Decimation filtering apparatus and method | Hyuk Oh, Sun-Bin Kim, Gin-Kyu Choi | 2001-08-21 |
| 6275461 | Optical pickup using an optical phase plate | Jang-hoon Yoo, Chul-woo Lee, Chong-sam Chung, Pyong-yong Seong, Kun-ho Cho +3 more | 2001-08-14 |
| 6272096 | Optical pickup using an optical phase plate | Jang-hoon Yoo, Chul-woo Lee, Chong-sam Chung, Pyong-yong Seong, Kun-ho Cho +3 more | 2001-08-07 |
| 6222812 | Optical pickup using an optical phase plate | Jang-hoon Yoo, Chul-woo Lee, Chong-sam Chung, Pyong-yong Seong, Kun-ho Cho +3 more | 2001-04-24 |
| 6114689 | Optical pickup device | Kun-ho Cho, Jang-hoon Yoo, Chul-woo Lee, Chong-sam Chung | 2000-09-05 |
| 6076169 | Computer system having a screen saver with a power shutdown function and a control method thereof | — | 2000-06-13 |
| 5987924 | Lens mold and method of manufacturing a lens | Chul-woo Lee, Dong-Ho Shin, Kyung-hwa Rim, Chong-sam Chung, Kun-ho Cho +2 more | 1999-11-23 |
| 5933401 | Optical pickup having plural optical sources and plural optical detectors | Chul-woo Lee, Dong-Ho Shin, Chong-sam Chung, Pyeong-yong Seong, Kun-ho Cho +3 more | 1999-08-03 |
| 5867088 | Maximum value/minimum value extractor and method | Dong Jin Shin | 1999-02-02 |
| 5822135 | Lens device including a light controlling mechanism and an optical pickup apparatus using a lens device | Chul-woo Lee, Dong-Ho Shin, Kyung-hwa Rim, Chong-sam Chung, Kun-ho Cho +2 more | 1998-10-13 |
| 5805556 | Optical pickup apparatus having a holographic optical element | Chul-woo Lee, Jang-hoon Yoo, Kyung-hwa Rim | 1998-09-08 |
| 5665957 | Lens device comprising light blocking means and an optical pickup apparatus using the lens device | Chul-woo Lee, Dong-Ho Shin, Kyung-hwa Rim, Chong-sam Chung, Kun-ho Cho +2 more | 1997-09-09 |
| 5408283 | Projection type television having a movable reflective mirror | — | 1995-04-18 |