Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11112724 | Structure for detecting developer level in developer cartridge | Jong-Hyun Park, Seil Kwon | 2021-09-07 |
| 9069321 | Waste container and electrophotographic image forming apparatus including the same | Oh-deug Kwon | 2015-06-30 |
| 8750735 | Apparatus and method for supplying charge voltage to organic photoconductor drum | Sang Don Lee, Sung Min Park | 2014-06-10 |
| 8417133 | Apparatus and method for supplying charge voltage to organic photoconductor drum | Sang Don Lee, Sung Min Park | 2013-04-09 |
| 7711277 | Toner density estimating method and apparatus using toner image and toner supplying method and apparatus | Kyu-cheol Shin | 2010-05-04 |
| 7519318 | Electrophotolithographic image forming device and image developing method | Naonori Kurogawa, Masahiko Itaya, Kyu-cheol Shin, Tsutomu Teraoka, Tsutomu Sasaki | 2009-04-14 |
| 7489893 | Hybrid type developing apparatus and developing method | Tsutomu Teraoka, Masahiko Itaya, Kyu-cheol Shin, Tsutomu Sasaki, Naonori Kurogawa | 2009-02-10 |
| 7412187 | Apparatus and method for cleaning the transfer roller of image forming apparatus | — | 2008-08-12 |
| 7406281 | Image forming apparatus and method thereof | In-yong Song, Sang Don Lee | 2008-07-29 |
| 7343128 | Image transfer member, image transfer device and image forming system | In-yong Song, Sang Don Lee, Shinichi Hasatomi | 2008-03-11 |
| 7330674 | Image forming apparatus for preventing resistance variation of intermediate transfer belt and method thereof | In-yong Song | 2008-02-12 |