Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7776952 | Polymeric dispersant having an affinity with a supercritical fluid | Cheol Ham, Seung-min Ryu | 2010-08-17 |
| 7537651 | Ink composition having azo-based colorant and ink set using the same | Heung-sup Park | 2009-05-26 |
| 7485179 | Inkjet composition, ink cartridge comprising the same, and inkjet recording apparatus comprising the same | Seung-min Ryu | 2009-02-03 |