Issued Patents All Time
Showing 25 most recent of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9557696 | Image forming apparatus with replacement component management memory | Se-hyun Lyu, Jung-Hwan Kim | 2017-01-31 |
| 9170545 | Image forming apparatus and control method thereof | — | 2015-10-27 |
| 8855518 | Image forming apparatus | — | 2014-10-07 |
| 8762716 | Image forming apparatus | Se-hyun Lyu, Jung-Hwan Kim | 2014-06-24 |
| 8705112 | Method and apparatus for controlling color registration sensors | Chang-Kyung Ko | 2014-04-22 |
| 8682188 | Image forming apparatus with developing units having different voltage levels | — | 2014-03-25 |
| 8447205 | Image forming apparatus | — | 2013-05-21 |
| 8325384 | Method and apparatus for controlling color registration sensors | Chang-Kyung Ko | 2012-12-04 |
| 8260168 | Image forming apparatus with enhanced electrical connection maintenance, and control method thereof | — | 2012-09-04 |
| 8159696 | Image forming device capable of driving with single processor | Seung-deong An | 2012-04-17 |
| 8136904 | Apparatus to control color registration and image density | — | 2012-03-20 |
| 8102563 | Image control device for printer and method of compensating for color registration error and image concentration error in the image control device | — | 2012-01-24 |
| 8068747 | Device and method for detecting position of unit mounted in image forming apparatus | — | 2011-11-29 |
| 7940418 | Image control device for printer and method of compensating for light amount drift of photosensor used in the image control device | — | 2011-05-10 |
| 7937001 | Device and method for detecting position of unit mounted in image forming apparatus | — | 2011-05-03 |
| 7933040 | Method and apparatus for controlling color registration sensors | Chang-Kyung Ko | 2011-04-26 |
| 7856186 | Image forming apparatus and power control method thereof | — | 2010-12-21 |
| 7658462 | Apparatus to control color registration and image density | — | 2010-02-09 |
| 7574150 | Power control apparatus and method of using a power control apparatus in an image forming device | — | 2009-08-11 |
| 7356276 | High voltage generator and method of sensing roller resistance | — | 2008-04-08 |
| 7330673 | Image forming device, consumable used in the image forming device, and method of managing status information of the consumable | — | 2008-02-12 |
| 7177551 | Apparatus for managing consumables of image forming apparatus | Seung-deog An | 2007-02-13 |
| 7106989 | Method and apparatus for controlling high-voltage output in image forming system | — | 2006-09-12 |
| 6930701 | Method and apparatus for controlling scanning velocity and amount of light for forming color image | — | 2005-08-16 |
| 6839156 | Laser scanning unit and electrophotographic image forming apparatus adopting the same | Min Ho Choi, Seung-deog An | 2005-01-04 |