| 9933751 |
Cartridge support member and image forming apparatus having the same |
— |
2018-04-03 |
| 9804557 |
Developing device attachable to electrophotographic image forming apparatus |
— |
2017-10-31 |
| 9429748 |
Weight-balanced polygonal mirror, light scanning unit using the polygonal mirror, and image forming apparatus |
Jin-kwon Chun, Jae-hwan Yoo, Won-young Cho, Heon-hee Lim |
2016-08-30 |
| 8854409 |
Image forming apparatus having variable developer intervals |
Jin-kwon Chun |
2014-10-07 |
| 8711196 |
Weight-balanced polygonal mirror, light scanning unit using the polygonal mirror, and image forming apparatus |
Jin-kwon Chun, Jae-hwan Yoo, Won-young Cho, Heon-hee Lim |
2014-04-29 |
| 8350882 |
Optical unit, image forming apparatus including the same and optical element thereof |
— |
2013-01-08 |
| 8330784 |
Image forming apparatus having variable developer intervals |
Jin-kwon Chun |
2012-12-11 |
| 8237759 |
Light scanning unit and image forming apparatus comprising the same |
— |
2012-08-07 |
