Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9736322 | Electronic device and method of checking connected state of signal line thereof | Eon-kyeong Yi, Jae-yoon One, Chun Sub Ryu | 2017-08-15 |
| 8948667 | Image forming apparatus and auto color registration method of the same | Dong Kyu Kim | 2015-02-03 |
| 8681374 | Image forming apparatus and auto color registration method thereof | — | 2014-03-25 |
| 8072477 | Image forming apparatus and signal synchronizing method thereof | — | 2011-12-06 |
| 7971870 | Medium feeding unit and image forming apparatus having the same | Kang-Woo Lee | 2011-07-05 |
| 7443534 | Video clock generation apparatus and method | — | 2008-10-28 |
| 7307482 | Ring oscillator setting apparatus and method depending on environmental changes of an image formation apparatus | Sang-sin Park | 2007-12-11 |