Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7410160 | Pick-up unit and an image forming apparatus having the same | — | 2008-08-12 |
| D539335 | Toner cartridge | Jae Il Choi | 2007-03-27 |
| 7058342 | Developing unit for image forming apparatus | — | 2006-06-06 |
| 6349189 | Hopper-integrated type developing unit for image forming apparatus | — | 2002-02-19 |
| 5778278 | Device for preventing fixing unit from overheating in an electrophotographic system | — | 1998-07-07 |
| 5659848 | Heat roller device | — | 1997-08-19 |