Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6657942 | Optical recording and reproducing apparatus having floating swing arm and optical disk for use therewith | Chul-woo Lee, Joong-eon Seo, Seung-tae Jung, Kun-ho Cho, Dong-seob Jang +2 more | 2003-12-02 |
| 6623828 | Optical disk employing integral substrate, and method for manufacturing the same | — | 2003-09-23 |
| 6621787 | Optical storage medium having protective layer thicker than wavelength of useable light source | Chul-woo Lee, Kun-ho Cho, Dong-Ho Shin, Joong-eon Seo, Seung-tae Jung +3 more | 2003-09-16 |