Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1077045 | Toner cartridge | Gun Heo, Yoshitaka Isogai | 2025-05-27 |
| 11835884 | Structure for opening and shutting of sensor for detecting toner remaining in toner cartridge | Gun Heo, Hojin Jang | 2023-12-05 |
| D832338 | Toner cartridge | Kiju Park, Jin Hong Kim, Hoyoung Lee | 2018-10-30 |