Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7181754 | Disk cartridge | Han-kook Choi, Dong-seob Jang, Dae-kyong Park, Kwang-Kyu Kim, Yong-hoon Lee | 2007-02-20 |
| 6940806 | Disc cartridge | Byoung-young Bae, Soon-kyo Hong, Kwang-Kyu Kim | 2005-09-06 |
| 6781793 | Disc cartridge | Kwang-Il Kim, Soon-kyo Hong, Seo Young Oh, Hee-Sung Park, Jung Ho Hwang | 2004-08-24 |