Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11126113 | Structure for releasing internal pressure in development cartridge when refilling toner | Seung-gweon Lee, Ji-Won Moon, Woong-Yong Choi, Yong Il Moon, Yong Nam Ahn | 2021-09-21 |
| 11036164 | Toner cartridge for refilling toner by using elastic force | Woong-Yong Choi, Seung-gweon Lee | 2021-06-15 |
| 10558144 | Developing cartridge, developing apparatus and image forming apparatus having the same | Ho-jin Jang, Jong-In Kim, Seong-woong Yang, Woong-Yong Choi | 2020-02-11 |
| 10139750 | Developing cartridge, developing apparatus and image forming apparatus having the same | Ho-jin Jang, Jong-In Kim, Seong-woong Yang, Woong-Yong Choi | 2018-11-27 |
| D833519 | Cartridge | Seong-woong Yang, Jong-In Kim, Yun-Kyu Shim, Sang Hoon Lee, Seung-gweon Lee +2 more | 2018-11-13 |
| D833520 | Cartridge | Seong-woong Yang, Jong-In Kim, Yun-Kyu Shim, Sang Hoon Lee, Seung-gweon Lee +2 more | 2018-11-13 |
| D832340 | Cartridge | Seong-woong Yang, Jong-In Kim, Yun-Kyu Shim, Sang Hoon Lee, Seung-gweon Lee +2 more | 2018-10-30 |
| 9746801 | Cartridges and electrophotographic image forming apparatus using the same | Ho-jin Jang, Seung-gweon Lee, Jong-In Kim, Sung Min Park | 2017-08-29 |
| 9429902 | Developing cartridge and image forming apparatus employing the same | Joon Hee Kim, Seong-woong Yang, Yun-kyu Sim | 2016-08-30 |