Issued Patents All Time
Showing 76–89 of 89 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7590372 | Multi-pass type color image forming apparatus | Su-kyoung Chae, Sung Dae Kim, Gun-Ho Kim | 2009-09-15 |
| 7486906 | Electrophotographic printer having removable photosensitive drum unit | Heung-sup Jeong, Se-hyun Lyu, Byeong-hwa Ahn, Woo Chul Jung, Jae Myoung Choi +2 more | 2009-02-03 |
| 7376373 | Image forming apparatus having a power transmitting device to selectively operate developing units thereof | Sung Dae Kim, Cheol-young Han, Hae-seog Jo | 2008-05-20 |
| 7289749 | Electrophotographic printer | Se-hyun Lyu, Heung-sup Jeong, Byeong-hwa Ahn, Woo Chul Jung, Jae Myoung Choi +2 more | 2007-10-30 |
| 7266321 | Apparatus for supplying voltage to developing device | Byeong-hwa Ahn, Seung Yoon Lee, Se-hyun Lyu | 2007-09-04 |
| 7133635 | Fusing unit used with a color laser printer | Kyung-shig Chung, Se-hyun Lyu | 2006-11-07 |
| 7110712 | Foreign substance prevention unit to protect electro-photographic printer from foreign substances | Byeong-hwa Ahn, Se-hyun Lyu, Woo Chul Jung | 2006-09-19 |
| 7082281 | Electrophotographic printer having movable pre-transfer erasing unit | Woo Chul Jung, Heung-sup Jeong, Byeong-hwa Ahn, Se-hyun Lyu, Jae Myoung Choi +2 more | 2006-07-25 |
| 7076187 | Electrophotographic printer | Heung-sup Jeong, Se-hyun Lyu, Jae Myoung Choi, Jin Soo Lee, Woo Chul Jung +2 more | 2006-07-11 |
| 7021439 | Clutch apparatus | Byoong hwa Ahn | 2006-04-04 |
| 6952554 | Waste toner agitator for an electrophotographic image forming apparatus | Byeong-hwa Ahn, Jin Soo Lee | 2005-10-04 |
| 6904247 | High voltage switching equipment of developing device for color image forming apparatus | Se-hyun Lyu, Byeong-hwa Ahn | 2005-06-07 |
| 6873819 | Wasted toner storing apparatus of an image forming apparatus having a rotating dispersing member | Byeong-hwa Ahn, Woo Chul Jung | 2005-03-29 |
| 6832063 | Apparatus for driving developers of color image forming apparatus | Byeong-hwa Ahn, Yu-man Kim | 2004-12-14 |