Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7389521 | Disk cartridge | Han-kook Choi, Dong-seob Jang | 2008-06-17 |
| 7263705 | Disc drive cartridge and disc drive apparatus to prevent scratching of a disc when the disc is loaded into a disc drive | Han-kook Choi, Dong-seob Jang | 2007-08-28 |
| 7181754 | Disk cartridge | Han-kook Choi, Dong-seob Jang, Kwang-Kyu Kim, Yong-hoon Lee, Hae-sub Kweon | 2007-02-20 |
| 6910218 | Slim type optical disc drive | Bu-hyun Sung, Dong-seob Jang, Gyu-chan Jun | 2005-06-21 |