Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5933401 | Optical pickup having plural optical sources and plural optical detectors | Chul-woo Lee, Dong-Ho Shin, Chong-sam Chung, Kun-ho Cho, Hyun-seob Choi +3 more | 1999-08-03 |
| 5796700 | Optical pickup to circularize light emitted from a light source | Chul-woo Lee, Dong-Ho Shin | 1998-08-18 |