Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9557696 | Image forming apparatus with replacement component management memory | Yoon-seop Eom, Jung-Hwan Kim | 2017-01-31 |
| 8762716 | Image forming apparatus | Yoon-seop Eom, Jung-Hwan Kim | 2014-06-24 |
| 8045890 | Multi-pass type image forming apparatus | Hun Sup Kim | 2011-10-25 |
| 7756445 | Transfer unit-fixing apparatus and image forming device having the same | Jin Soo Lee, Heung-sup Jeong | 2010-07-13 |
| 7654518 | Image forming apparatus and paper guide unit thereof | Jong Tae Kim | 2010-02-02 |
| 7486906 | Electrophotographic printer having removable photosensitive drum unit | Heung-sup Jeong, 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, Heung-sup Jeong | 2009-01-27 |
| 7448623 | Paper feeding mechanism and image forming apparatus employing the same | Byeong-hwa Ahn | 2008-11-11 |
| 7450886 | Developer-driving device and image forming apparatus having the same | Byeong-hwa Ahn, Seock-deock Hong | 2008-11-11 |
| 7336916 | Electrophotographic image forming apparatus | Woo Chul Jung, Heung-sup Jeong | 2008-02-26 |
| 7321381 | Image forming apparatus and contamination prevention member for use therein | Heung-kyu Jang, Woo Chul Jung | 2008-01-22 |
| 7289749 | Electrophotographic printer | Heung-sup Jeong, 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, Heung-sup Jeong | 2007-09-18 |
| 7266321 | Apparatus for supplying voltage to developing device | Byeong-hwa Ahn, Young Min Yoon, Seung Yoon Lee | 2007-09-04 |
| 7257346 | Fusing roller regenerating apparatus in image forming apparatus and method thereof | Jin Soo Lee | 2007-08-14 |
| 7221880 | Waste toner transfer apparatus and electrophotographic printer using the same | Heung-sup Jeong, Jae Myoung Choi, Jin Soo Lee | 2007-05-22 |
| 7218868 | Image forming apparatus having locking/releasing unit | Byeong-hwa Ahn | 2007-05-15 |
| 7184689 | Developing cartridge having protective cover and image forming apparatus including the same | Il-kwon Kang, Heung-sup Jeong | 2007-02-27 |
| 7133635 | Fusing unit used with a color laser printer | Kyung-shig Chung, Young Min Yoon | 2006-11-07 |
| 7110712 | Foreign substance prevention unit to protect electro-photographic printer from foreign substances | Young Min Yoon, Byeong-hwa Ahn, Woo Chul Jung | 2006-09-19 |
| 7099617 | Waste toner transfer apparatus and electrophotographic printer adopting the same | Heung-sup Jeong, Jin Soo Lee, Jae Myoung Choi | 2006-08-29 |
| 7082281 | Electrophotographic printer having movable pre-transfer erasing unit | Woo Chul Jung, Heung-sup Jeong, Byeong-hwa Ahn, Young Min Yoon, Jae Myoung Choi +2 more | 2006-07-25 |
| 7076187 | Electrophotographic printer | Heung-sup Jeong, 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, Heung-sup Jeong, Jin Soo Lee | 2006-06-27 |
| 7063315 | Pickup error-sensing apparatus of image forming apparatus and method therefor | Jin Soo Lee | 2006-06-20 |