Issued Patents 2023
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11841644 | Toner cartridge and image forming apparatus including a screw to convey toner in the cartridge, an elastic member to loosen the toner, and a means to discharge toner together with air to the outside of the cartridge | Tomofumi Kawamura | 2023-12-12 |
| 11835888 | Developing device, cartridge, image forming apparatus | Harunobu Maeda, Masahito Kato, Kodai Hayashi, Takuya Oka, Yu Akiba +3 more | 2023-12-05 |
| 11804953 | Key management method used in encryption processing for safely transmitting and receiving messages | Yoshihiro Ujiie, Jun Anzai, Yoshihiko Kitamura, Takeshi Kishikawa | 2023-10-31 |
| 11698600 | Developing apparatus, process cartridge, and image forming apparatus | Kazutaka Sueshige, Teruhiko Sasaki, Tsukasa Abe, Osamu Anan | 2023-07-11 |
| 11656572 | Developing cartridge having a guide projecting from a frame body | Osamu Anan, Tsukasa Abe, Kazutaka Sueshige | 2023-05-23 |
| 11569984 | Key management method used in encryption processing for safely transmitting and receiving messages | Yoshihiro Ujiie, Jun Anzai, Yoshihiko Kitamura, Takeshi Kishikawa | 2023-01-31 |
| 11550255 | Image forming apparatus and developing cartridge | Masakazu Tatsumi, Tatsuro Harada | 2023-01-10 |