Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8681373 | Image forming apparatus and image forming method thereof to print alternative images at an interval during a print job | Jin Soo Lee, Byung-sun Ahn | 2014-03-25 |
| 7756445 | Transfer unit-fixing apparatus and image forming device having the same | Jin Soo Lee, Se-hyun Lyu | 2010-07-13 |
| 7731174 | Paper pickup device and image forming apparatus having the same | Jin Soo Lee | 2010-06-08 |
| 7486906 | Electrophotographic printer having removable photosensitive drum unit | Se-hyun Lyu, Byeong-hwa Ahn, Woo Chul Jung, Young Min Yoon, Jae Myoung Choi +2 more | 2009-02-03 |
| 7483048 | Apparatus for fixing shaft of cartridge and image forming device having the same | Woo Chul Jung, Se-hyun Lyu | 2009-01-27 |
| 7450884 | Image forming apparatus having printing medium feeding unit | Jin Soo Lee | 2008-11-11 |
| 7389981 | Paper feeding apparatus for printer having double feed prevention unit | Jin Soo Lee | 2008-06-24 |
| 7369789 | Door status switch operation mechanism for image forming apparatus | Sang Woon Lee | 2008-05-06 |
| 7359658 | Tension adjuster of belt of image forming apparatus | Jin Soo Lee | 2008-04-15 |
| 7343129 | Image forming apparatus | Byeong-hwa Ahn | 2008-03-11 |
| 7343118 | Door shock absorber and image forming apparatus employing the same | Byeong-hwa Ahn | 2008-03-11 |
| 7336916 | Electrophotographic image forming apparatus | Woo Chul Jung, Se-hyun Lyu | 2008-02-26 |
| 7289749 | Electrophotographic printer | Se-hyun Lyu, Byeong-hwa Ahn, Woo Chul Jung, Young Min Yoon, Jae Myoung Choi +2 more | 2007-10-30 |
| 7272341 | Electrophotographic image forming apparatus | Woo Chul Jung, Se-hyun Lyu | 2007-09-18 |
| 7221880 | Waste toner transfer apparatus and electrophotographic printer using the same | Jae Myoung Choi, Jin Soo Lee, Se-hyun Lyu | 2007-05-22 |
| 7184689 | Developing cartridge having protective cover and image forming apparatus including the same | Il-kwon Kang, Se-hyun Lyu | 2007-02-27 |
| 7142802 | Fixing unit used with an image forming apparatus and an image forming apparatus having the same | Jin Soo Lee, Kyung-shig Chung | 2006-11-28 |
| 7099617 | Waste toner transfer apparatus and electrophotographic printer adopting the same | Jin Soo Lee, Jae Myoung Choi, Se-hyun Lyu | 2006-08-29 |
| 7082281 | Electrophotographic printer having movable pre-transfer erasing unit | Woo Chul Jung, Byeong-hwa Ahn, Se-hyun Lyu, Young Min Yoon, Jae Myoung Choi +2 more | 2006-07-25 |
| 7076187 | Electrophotographic printer | Se-hyun Lyu, Jae Myoung Choi, Jin Soo Lee, Woo Chul Jung, Young Min Yoon +2 more | 2006-07-11 |
| 7068968 | Waste toner transfer apparatus and electrophotographic printer adopting the same | Jae Myoung Choi, Se-hyun Lyu, Jin Soo Lee | 2006-06-27 |
| 7054578 | System to replace a photosensitive unit and a transfer unit and a printer having the system | Woo Chul Jung, Byeong-hwa Ahn, Kyung-shig Chung | 2006-05-30 |
| 7020428 | Waste toner collecting device of an electrophotographic image forming apparatus, method thereof, and an electrophotographic printer having the same | Moon-bae Park | 2006-03-28 |
| 6941093 | Photoreceptive unit and transfer unit replacement system of printer | Moon-bae Park | 2005-09-06 |
| 6926268 | Paper cassette | Jin Soo Lee | 2005-08-09 |