Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7885165 | Optical pick-up device | Soo-han Park, Jang-hoon Yoo, Yong-han Yoon, Soo Jin Jung | 2011-02-08 |
| 7782734 | Optical pickup which is compatible with multiple types of media | Bong-gi Kim, Soo-han Park, Jang-hoon Yoo, Ho Sik You | 2010-08-24 |
| 7435934 | Optical pickup apparatus which is compatible with multiple types of media | Soo-han Park, Jang-hoon Yoo, Ho Sik You | 2008-10-14 |
| 6084840 | Optical pickup for use with a recording medium | — | 2000-07-04 |