Issued Patents 2004
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6826142 | Method of and apparatus for reproducing data recorded on an optical disc | Young-man Ahn, Jong-bae Kim, Chong-sam Chung | 2004-11-30 |
| 6809999 | Device and method for reducing crosstalk and intersymbol interference | Chong-sam Chung, Young-man Ahn, Hea-jung Seo | 2004-10-26 |
| 6807144 | Optical recording medium recordable on land and groove tracks | Young-man Ahn, Chong-sam Chung, Jin-Kyung Lee, Jong-bae Kim, Du-seop Yoon | 2004-10-19 |
| 6798731 | Optical pickup for and method of correcting aberration due to thickness variations of optical media | Chong-sam Chung, Young-man Ahn, Hea-jung Suh | 2004-09-28 |
| 6791933 | Optical pickup using an optical phase plate | Jang-hoon Yoo, Chul-woo Lee, Chong-sam Chung, Pyong-yong Seong, Kun-ho Cho +3 more | 2004-09-14 |
| 6788473 | Objective lens device for correcting chromatic aberration and optical pickup employing the same | Young-man Ahn, Hea-jung Suh, Chong-sam Chung | 2004-09-07 |
| 6785209 | Optical pickup for improving properties of a reproduction signal | Chong-sam Chung, Young-man Ahn, Hea-jung Suh | 2004-08-31 |
| 6724710 | Spherical abberation compensator and optical pickup using the same | Chong-sam Chung, Young-man Ahn, Hea-jung Suh, Jong-bae Kim | 2004-04-20 |
| 6678233 | Objective lens and optical pickup device using the same | Chong-sam Chung, Young-man Ahn, Hea-jung Suh | 2004-01-13 |