Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11366407 | Structure to refill toner to development cartridge mounted in main body | Yong-Kwan Cho, Jiwon Moon, Woongyong Choi, Yongil Moon, Yongnam Ahn +1 more | 2022-06-21 |
| 11281125 | Toner refill cartridge with structure for preventing toner discharging part from being blocked by weight part | Woong-Yong Choi, Jinhwa Hong, Ji-Won Moon | 2022-03-22 |
| 11231662 | Shutter structure for toner refill cartridge | Woongyong Choi | 2022-01-25 |
| 11126113 | Structure for releasing internal pressure in development cartridge when refilling toner | Ji-Won Moon, Woong-Yong Choi, Yong Il Moon, Yong Nam Ahn, Jin Hwa Hong | 2021-09-21 |
| 11112750 | Development cartridge having a switch member to rotate developing unit to a development position | Sang Hoon Lee, Seung Beom Yang | 2021-09-07 |
| 11036164 | Toner cartridge for refilling toner by using elastic force | Woong-Yong Choi, Jin Hwa Hong | 2021-06-15 |
| D907698 | Development cartridge for a printer | Ji-Won Moon, Woong-Yong Choi, Yong-Kwan Cho, Yongil Moon, Yongnam Ahn +5 more | 2021-01-12 |
| 10698362 | Development cartridge having a switch member to rotate developing unit to a development position | Sang Hoon Lee, Seung Beom Yang | 2020-06-30 |
| D833519 | Cartridge | Seong-woong Yang, Jong-In Kim, Yun-Kyu Shim, Sang Hoon Lee, Ho-jin Jang +2 more | 2018-11-13 |
| D833520 | Cartridge | Seong-woong Yang, Jong-In Kim, Yun-Kyu Shim, Sang Hoon Lee, Ho-jin Jang +2 more | 2018-11-13 |
| D832340 | Cartridge | Seong-woong Yang, Jong-In Kim, Yun-Kyu Shim, Sang Hoon Lee, Ho-jin Jang +2 more | 2018-10-30 |
| 9778617 | Process cartridge having fixed and moveable electric contacts and electro-photographic image forming apparatus using the process cartridge | Ji-Won Moon, Joon Hee Kim | 2017-10-03 |
| 9778595 | Cartridge unit and electrophotographic image forming apparatus including the same | Sang Hoon Lee | 2017-10-03 |
| 9746801 | Cartridges and electrophotographic image forming apparatus using the same | Ho-jin Jang, Jin Hwa Hong, Jong-In Kim, Sung Min Park | 2017-08-29 |
| 9658571 | Developing device and image forming apparatus including the same | Jong-In Kim, Dong Uk Kim, Woong-Yong Choi | 2017-05-23 |
| D786344 | Cartridge for printer | Young-chae Kim, Sang Hoon Lee, Ki Hyun Yoo, Ho-jin Jang | 2017-05-09 |
| D774592 | Cartridge for printer | Young-chae Kim, Sang Hoon Lee, Ki Hyun Yoo, Ho-jin Jang | 2016-12-20 |
| 9417560 | Cartridge unit and electrophotographic image forming apparatus including the same | Sang Hoon Lee | 2016-08-16 |
| 9256198 | Electrophotographic image forming apparatus and development cartridge | Ho-jin Jang, Sang Hoon Lee | 2016-02-09 |
| 9182739 | Electrophotographic image forming apparatus | Sang Hoon Lee, Young-chae Kim, Sang Jin Park, Dong-cheol Ahn, Ki Hyun Yoo +1 more | 2015-11-10 |
| 9104169 | Electrophotographic image forming apparatus | Ho-jin Jang, Young-chae Kim, Sang Jin Park, Ki Hyun Yoo, Sang Hoon Lee | 2015-08-11 |
| D728014 | Cartridge for printer | Young-chae Kim, Sang Hoon Lee, Ki Hyun Yoo, Ho-jin Jang | 2015-04-28 |
| 8948664 | Developing device conveying assembly for image forming apparatus and image forming apparatus having the same | Jae Hyun SHIN, Ki Hyun Yoo | 2015-02-03 |
| 8781361 | Image forming apparatus | Ho-jin Jang, Hyun-wook Bae | 2014-07-15 |
| 8422915 | Developer cartridge, developing device, and image forming apparatus having the same | Sam-seok Choi, Jong-moon Eun, Jean-Man Sur | 2013-04-16 |