Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12332582 | Cartridge having rotatable reception shutter, cartridge having lever for opening and closing reception shutter, and method of supplying toner | Shougo Sato | 2025-06-17 |
| 12271126 | Image forming apparatus configured to perform cleaning operation for cleaning drum cleaning roller configured to collect toner on photosensitive drum | Toshio Furukawa, Koji Ogawa, Fan Xu, Kazuma Hinoue, Hotaka Kakutani +12 more | 2025-04-08 |
| 12164245 | Cartridge having detachable cap to cover opening of casing for replenishing toner into storage bag accommodated in casing | Nao Itabashi, Masahiko Hayakawa, Sakiho HAYAKAWA, Hotaka Kakutani, Haruka KIZU +1 more | 2024-12-10 |
| 11874614 | Image forming apparatus having toner cartridge | Shougo Sato | 2024-01-16 |
| 11619897 | Image forming apparatus | Miho Ishida, Toshio Furukawa, Toshinori Araki, Masaya Takasu, Takuro Nishimura | 2023-04-04 |
| 11385569 | Image forming apparatus including toner cartridge | Shougo Sato | 2022-07-12 |
| 11327416 | Image forming apparatus including movable toner cartridge | Shougo Sato | 2022-05-10 |
| 11226573 | Toner cartridge | Shougo Sato | 2022-01-18 |
| 10452020 | Toner cartridge supporting apparatus, image forming apparatus using the same, and toner cartridge supporting method | Hitoshi Nagahama | 2019-10-22 |
| 10162285 | Toner cartridge supporting apparatus, image forming apparatus using the same, and toner cartridge supporting method | Hitoshi Nagahama | 2018-12-25 |
| 9535350 | Method for producing ground toner | Keiichi Kikawa, Tadayuki Sawai, Yoritaka Tsubaki, Keigo Mitamura, Yui Kawano | 2017-01-03 |
| 9298156 | Toner cartridge supporting apparatus, image forming apparatus using the same, and toner cartridge supporting method | Hitoshi Nagahama | 2016-03-29 |
| 9274447 | Two-component color developer and image formation device using same | Tadayuki Sawai, Yoritaka Tsubaki, Keiichi Kikawa, Keigo Mitamura, Yui Kawano | 2016-03-01 |
| 9250549 | Full-color toner set, full-color developer set, image-formation method using same, and image-formation device | Tadayuki Sawai, Yoritaka Tsubaki, Keigo Mitamura, Yui Kawano, Keiichi Kikawa | 2016-02-02 |