Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6938890 | Objective lens for high-density optical focusing and an optical disk in an optical pickup | Kun-ho Cho, Seung-tae Jung, Chul-woo Lee, Dong-Ho Shin | 2005-09-06 |
| 6882614 | Recording/reproducing apparatus having an optical pickup device to read from and record information to disks of different thicknesses | Chul-woo Lee | 2005-04-19 |