Issued Patents 2025
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12282273 | Development device having rotatable wiper wiping optical surface of lens | Yongnam Ahn, Jongin Kim, Woongyong Choi | 2025-04-22 |
| 12271120 | Toner refill cartridge having pump for automatic toner refilling | Yongnam Ahn, Jinhwa Hong, Junhui Kim | 2025-04-08 |
| 12235596 | Toner refill cartridge indicating whether toner has been discharged | Seungbin Ahn, Woongyong Choi | 2025-02-25 |