Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6650856 | Liquid electrophotographic printer and printing method | Hyeong-jin Ahn, Cheol-young Han, Woo-yong Park, Seung-young Byun | 2003-11-18 |
| 6519435 | Electrostatic transfer type liquid electrophotographic printer | Mun-bae Park | 2003-02-11 |
| 6072975 | Developer for image producing apparatus utilizing electrophotographic developing technology | — | 2000-06-06 |
| 6032005 | Method for cleaning the contact charger of an electrophotographic apparatus | Bum-Chae Chung | 2000-02-29 |
| 5884121 | Transfer bias control method for image forming apparatus using electrophotographic process | — | 1999-03-16 |
| 5758229 | Method of controlling the charging operation of the contact charger of an electrophotographic apparatus to prevent the contact charger from being contaminated | — | 1998-05-26 |