Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10218871 | Light scanning unit and image forming apparatus having the same | — | 2019-02-26 |
| 9075339 | Polygon mirror assembly, light scanning unit employing polygon mirror assembly, and image forming apparatus | Heon-hee Lim, Jae-hwan Yoo, Jin-kwon Chun | 2015-07-07 |
| 8848014 | Polygon mirror assembly, light scanning unit employing polygon mirror assembly, and image forming apparatus | Heon-hee Lim, Jae-hwan Yoo, Jin-kwon Chun | 2014-09-30 |
| 8570620 | Light scanning unit and electrophotographic image forming apparatus using the same | — | 2013-10-29 |
| 8305673 | Light scanning unit | Heon-hee Lim | 2012-11-06 |
| 7750933 | Optical scanning unit and electro-photographic image forming apparatus including the same | — | 2010-07-06 |