Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12422775 | Unlocking toner cartridge by click operation | Changwoo Lee, Heonjoo Kim, Jeongyeon Park | 2025-09-23 |
| 12085885 | Connection structure for coupling with toner cartridge | Changwoo Lee, Junhui Kim | 2024-09-10 |
| 12085886 | Connection structure for coupling with toner cartridge | Changwoo Lee, Junhui Kim | 2024-09-10 |
| 11467528 | Universal coupler with coupler holder and driving coupler elastically combined with each other | Taeil Jung, Tae Hee Kim | 2022-10-11 |
| 11378905 | Color registration by varying rotational speed of photosensitive drum | Yasuhisa Ehara, Sangbum Woo, Sungdae Kim, Sooyong Kim, Youngwan Cho | 2022-07-05 |