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 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 |