Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7391680 | Optical pickup system and disk drive with the same | Un-jin Choi | 2008-06-24 |
| 7284253 | Optical pickup transferring apparatus of an optical disk drive | Un-jin Choi | 2007-10-16 |