Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6826142 | Method of and apparatus for reproducing data recorded on an optical disc | Tae Kyung Kim, Young-man Ahn, Chong-sam Chung | 2004-11-30 |
| 6807144 | Optical recording medium recordable on land and groove tracks | Tae Kyung Kim, Young-man Ahn, Chong-sam Chung, Jin-Kyung Lee, Du-seop Yoon | 2004-10-19 |
| 6724710 | Spherical abberation compensator and optical pickup using the same | Chong-sam Chung, Young-man Ahn, Tae Kyung Kim, Hea-jung Suh | 2004-04-20 |