Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6814434 | Ink cartridge | Seo-hyun Cho, Myung-song Jung, Young Su Lee | 2004-11-09 |
| 6749295 | Ink-jet cartridge | Moo-youl Kim, Seo-hyun Cho, Myung-song Jung, Jae-cheol Lee, Young Su Lee | 2004-06-15 |