Issued Patents All Time
Showing 1–25 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9280097 | Transfer device and image forming apparatus having the same | Jeong Yong Ju, Jun Ho Lee | 2016-03-08 |
| 9280128 | Image forming apparatus | Jeong Yong Ju, Jun Ho Lee | 2016-03-08 |
| 9213285 | Image forming apparatus and control method thereof | Bong Hwan Choi, Yong-kon Jo | 2015-12-15 |
| 8948654 | Transfer device and image forming apparatus having the same | Jeong Yong Ju, Jun Ho Lee | 2015-02-03 |
| 8903299 | Image forming apparatus and a waste toner recovery device thereof | Jun Ho Lee, Myoung Sub Jang, Jeong Yong Ju | 2014-12-02 |
| 8903274 | Image forming apparatus | Jeong Yong Ju, Jun Ho Lee | 2014-12-02 |
| 8824914 | Safety system for image forming apparatus having expendable developing unit | Gi-cheol Jeong | 2014-09-02 |
| 8750779 | Image forming apparatus and control method thereof | Bong Hwan Choi, Yong-kon Jo | 2014-06-10 |
| 8254808 | Image forming apparatus and transfer device thereof | Jun Ho Lee, Jeong Yong Ju | 2012-08-28 |
| 7909318 | Image forming apparatus | Hak Kyum Kim | 2011-03-22 |
| 7877051 | Fusing unit and image forming apparatus having the same | — | 2011-01-25 |
| 7835666 | Image forming apparatus and power transmission unit thereof | Se-min Kim, Byung-sun Ahn, Gi-cheol Jeong | 2010-11-16 |
| 7787803 | Image forming apparatus having controller to selectively control plurality of driving sources | Byung-sun Ahn, Kyung-shig Chung, Soo Yong Kim, Gi-cheol Jeong | 2010-08-31 |
| 7702258 | Color image forming apparatus with color registration compensation unit | Soo Yong Kim | 2010-04-20 |
| 7693450 | Developing unit and an image forming apparatus including the developing unit | Soo Yong Kim, Il-kwon Kang | 2010-04-06 |
| 7672614 | Driving apparatus, process cartridge and image forming device having the same | Il-kwon Kang | 2010-03-02 |
| 7486906 | Electrophotographic printer having removable photosensitive drum unit | Heung-sup Jeong, Se-hyun Lyu, Woo Chul Jung, Young Min Yoon, Jae Myoung Choi +2 more | 2009-02-03 |
| 7448623 | Paper feeding mechanism and image forming apparatus employing the same | Se-hyun Lyu | 2008-11-11 |
| 7450886 | Developer-driving device and image forming apparatus having the same | Seock-deock Hong, Se-hyun Lyu | 2008-11-11 |
| 7343118 | Door shock absorber and image forming apparatus employing the same | Heung-sup Jeong | 2008-03-11 |
| 7343129 | Image forming apparatus | Heung-sup Jeong | 2008-03-11 |
| 7302215 | Electrophotographic image forming apparatus having a separator to separate a printing medium from a transfer belt | Se-hyung Lyu | 2007-11-27 |
| 7302218 | Image forming apparatus with constant conveying velocity | Soo Yong Kim, Gi-cheol Jeong | 2007-11-27 |
| 7289749 | Electrophotographic printer | Se-hyun Lyu, Heung-sup Jeong, Woo Chul Jung, Young Min Yoon, Jae Myoung Choi +2 more | 2007-10-30 |
| 7266321 | Apparatus for supplying voltage to developing device | Young Min Yoon, Seung Yoon Lee, Se-hyun Lyu | 2007-09-04 |