Issued Patents 2021
Showing 1–2 of 2 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 Nam Ahn, Jin Hwa Hong | 2021-09-21 |
| 11112727 | Interface structure for toner refill cartridge and toner refill portion | Woong-Yong Choi | 2021-09-07 |