Issued Patents All Time
Showing 1–25 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12399457 | Image forming apparatus including device main body and consumable attachable thereto and including consumable memory for storing recycling history information | Takashi Suzuki | 2025-08-26 |
| 12353146 | Printing device and control method of the same | Takashi Suzuki | 2025-07-08 |
| 12050428 | Image forming apparatus requesting execution of density correction process | Keigo Nakajima | 2024-07-30 |
| 12025942 | Image forming apparatus | Masaaki Furukawa, Sota Hirano, Takahito Yamaji, Toshiyuki Sano | 2024-07-02 |
| 11934144 | Image forming apparatus capable of controlling extension of use of drum cartridge | Chieko Mimura | 2024-03-19 |
| 11899387 | Image-forming device performing printing process according to mode switched between normal printing mode and extended printing mode | Takashi Suzuki, Shingo Fujiwara, Nao Itabashi | 2024-02-13 |
| 11868081 | Image forming apparatus capable of determining whether communication between controller and storage medium of developing cartridge is established | Nao Itabashi | 2024-01-09 |
| 11860558 | Image forming apparatus | Masaaki Furukawa, Sota Hirano, Takahito Yamaji, Toshiyuki Sano | 2024-01-02 |
| 11852998 | Image forming apparatus capable of displaying on display error relating to drum cartridge in preference to error relating to toner cartridge | — | 2023-12-26 |
| 11846905 | Image forming device performing preliminary process to rotate roller at determined rotational speed | Yoshihiro Itogawa | 2023-12-19 |
| 11835904 | Image forming apparatus including controller capable of determining whether developing cartridge, drum cartridge and belt unit are reached their lifetimes | — | 2023-12-05 |
| 11829099 | Drum cartridge and image forming apparatus | Tomoyasu Yabuki, Takashi Suzuki | 2023-11-28 |
| 11809113 | Drum cartridge for use with a toner cartridge in an image forming apparatus | Chieko Mimura | 2023-11-07 |
| 11809128 | Image forming apparatus capable of controlling extension of use of drum cartridge | Chieko Mimura | 2023-11-07 |
| 11774894 | Image forming apparatus capable of determining whether to order new drum cartridge together with new toner cartridge | Takashi Suzuki, Shingo Fujiwara | 2023-10-03 |
| 11762310 | Image forming apparatus that determines whether cartridge can be used in the image forming apparatus | — | 2023-09-19 |
| 11720038 | Printing device and control method of the same | Takashi Suzuki | 2023-08-08 |
| 11681253 | Image forming apparatus rewriting usage status information to information indicating that cartridge is old cartridge | — | 2023-06-20 |
| 11675304 | Image forming apparatus requesting execution of density correction process | Keigo Nakajima | 2023-06-13 |
| 11579542 | Image forming apparatus including toner cartridge having toner memory and drum cartridge having drum memory | — | 2023-02-14 |
| 11579554 | Image forming apparatus capable of displaying on display error relating to drum cartridge in preference to error relating to toner cartridge | — | 2023-02-14 |
| 11513470 | Image-forming apparatus including drum cartridge having memory storing first type information, and toner cartridge having memory storing second type information | Takashi Suzuki, Shingo Fujiwara | 2022-11-29 |
| 11507015 | Image forming apparatus capable of determining whether communication between controller and storage medium of developing cartridge is established | Nao Itabashi | 2022-11-22 |
| 11454925 | Image forming apparatus capable of determining whether toner cartridge is attached to appropriate slot provided in main casing | Takashi Suzuki, Tomoyasu Yabuki, Nao Itabashi | 2022-09-27 |
| 11448984 | Printing device and control method of the same | Takashi Suzuki | 2022-09-20 |