Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6801493 | Optical pickup device | Dong-seob Jang, Sung-Jin Lee, Young-min Cheong | 2004-10-05 |
| 6738227 | Negative pressure air bearing slider including negative pressure rail with a protruding stepped portion | Dong-seob Jang | 2004-05-18 |