Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9128458 | Developing unit to effectively supply toner to developing roller and image forming apparatus employing same | Sung Min Park, Jong Woo Lee | 2015-09-08 |
| 8781361 | Image forming apparatus | Ho-jin Jang, Seung-gweon Lee | 2014-07-15 |
| 8041261 | Image forming apparatus with a light scanning lamp blocking device, operating method thereof and a cartridge usable with the image forming apparatus | Ji-Won Moon | 2011-10-18 |
| 7941078 | Electrophotographic image forming apparatus having transparent toner | Ki-jae Do | 2011-05-10 |
| 7853187 | Image forming apparatus with supply unit having high applied voltage | — | 2010-12-14 |
| 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, Won-Wook Lee +2 more | 2010-04-20 |
| 7435520 | Electrophotographic developing agent | — | 2008-10-14 |
| 7013103 | Developer-supplying system of image forming apparatus | — | 2006-03-14 |
| 6845223 | Image forming apparatus to form uniform nip | Jong-moon Eun | 2005-01-18 |
| 5848321 | Method for automatically controlling transfer voltage in printer using electrophotography system | Seuk-Pil Roh | 1998-12-08 |