Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9493494 | Phosphinine oxide derivative and preparation method thereof | Phil Ho Lee, Young-Chul Park, Jung Min Seo, Bo Ram Seo | 2016-11-15 |
| 8831474 | Developing device and image forming apparatus including the same | Jong-hwa Joo, Woong-Yong Choi, Ki-jae Do, Jun Ho Kim, Sang Jin Park +1 more | 2014-09-09 |
| 8670696 | Developing device usable with image forming apparatus | Sung Han Kim | 2014-03-11 |
| 8577265 | Developing device usable with image forming apparatus and developer delivery device thereof including a plurality of rotatable delivery members | Ji-Won Moon, Ki-jae Do | 2013-11-05 |
| 8538297 | Charging apparatus using charging tube and image forming apparatus having the same | Ki-jae Do, Jong-hwa Joo, Yong-hoon Lee, Sang Jin Park | 2013-09-17 |
| 8437666 | Developing device usable with image forming apparatus | Sung Han Kim | 2013-05-07 |
| 8311461 | Image forming apparatus, developing device including developer contact member and developer cartridge thereof | Jong-In Kim, Sung-Gi Kim | 2012-11-13 |
| 8190050 | Image forming apparatus having a mounting/demounting structure | Sung-Gi Kim | 2012-05-29 |
| 8185033 | Photosensitive body unit and image forming apparatus having the same | — | 2012-05-22 |
| 8086153 | Developing apparatus usable with image forming apparatus, image forming apparatus having the same, method to prevent developer from flowing out the developing apparatus | Yong-baek Yoo | 2011-12-27 |
| 8060002 | Developer storage device and image forming apparatus having the same | Yong Sung Kim, Sung-Gi Kim | 2011-11-15 |
| 8032060 | Power transmitting unit, and developing device and image forming apparatus having the same | — | 2011-10-04 |
| 7860434 | Developing cartridge and image forming apparatus including the same | — | 2010-12-28 |
| 7822366 | Image forming apparatus and developing unit thereof | Jong-pil Jun | 2010-10-26 |
| 7725058 | Developing unit and image forming apparatus having the same | Se-il Kwon | 2010-05-25 |
| 7702259 | Multi-pass image forming apparatus and image forming method using the same for providing plural print modes with different numbers of passes depending on desired print speed and image quality | Jong-moon Eun, Hisao Okada, Hyun-Cheol Lee, Won-hee Choe, Hyun-wook Bae +2 more | 2010-04-20 |
| 7587153 | Cooling device and image forming apparatus having the same installed therein | — | 2009-09-08 |
| D597593 | Developing device for color laser printer | Ho-jin Jang | 2009-08-04 |
| 7437118 | Image forming apparatus with printing medium guide | Byung-sun Ahn, Douk-soon Cha | 2008-10-14 |
| 7248819 | Developer driving device and image forming apparatus using the same | — | 2007-07-24 |
| 7171137 | Developing apparatus and image forming equipment and method thereof | Hyun-Cheol Lee, Jeong-seon Kim, Valeri Krasnoslobodtsev | 2007-01-30 |
| 7162183 | Developing unit with developing gap control | — | 2007-01-09 |
| 7110697 | Developer layer thickness regulating device for a developing unit | — | 2006-09-19 |
| 7110708 | Developing cartridge for electrophotographic image forming apparatus | — | 2006-09-19 |
| 7076190 | Developing unit for electrophotographic image forming apparatus | — | 2006-07-11 |