Issued Patents All Time
Showing 25 most recent of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12321129 | Photosensitive member cartridge and process cartridge | Masao Uyama, Kenji Matsuda, Ken Kikuchi, Jun Miyazaki | 2025-06-03 |
| 11982972 | Photosensitive member cartridge and process cartridge | Masao Uyama, Kenji Matsuda, Ken Kikuchi, Jun Miyazaki | 2024-05-14 |
| 11789403 | Photosensitive member cartridge and process cartridge | Masao Uyama, Kenji Matsuda, Ken Kikuchi, Jun Miyazaki | 2023-10-17 |
| 11314198 | Photosensitive member cartridge and process cartridge | Masao Uyama, Kenji Matsuda, Ken Kikuchi, Jun Miyazaki | 2022-04-26 |
| 11281156 | Photosensitive member cartridge and process cartridge | Masao Uyama, Kenji Matsuda, Ken Kikuchi, Jun Miyazaki | 2022-03-22 |
| 11156953 | Photosensitive member cartridge and process cartridge | Masao Uyama, Kenji Matsuda, Ken Kikuchi, Jun Miyazaki | 2021-10-26 |
| 10613465 | Drum cylinder unit, method for attaching coupling member, and drum unit | Shigemi Kamoshida, Ken Kikuchi, Tomonori Mori, Daisuke Abe | 2020-04-07 |
| 10599094 | Photosensitive member cartridge and process cartridge | Masao Uyama, Kenji Matsuda, Ken Kikuchi, Jun Miyazaki | 2020-03-24 |
| 10191446 | Photosensitive member cartridge and process cartridge | Masao Uyama, Kenji Matsuda, Ken Kikuchi, Jun Miyazaki | 2019-01-29 |
| 9823621 | Photosensitive member cartridge and process cartridge | Masao Uyama, Kenji Matsuda, Ken Kikuchi, Jun Miyazaki | 2017-11-21 |
| 9182737 | Image forming apparatus for replacing toner from the main body of the image forming apparatus | Daisuke Hiramatsu, Tsutomu Nishiuwatoko, Ken Kikuchi, Kensuke Suzuki | 2015-11-10 |
| 9046871 | Process cartridge, main cartridge, sub cartridge, and image forming apparatus | Kensuke Suzuki, Tsutomu Nishiuwatoko, Takashi Akutsu | 2015-06-02 |
| 8905908 | Lubricant supplying method, supporting member and rotatable member unit | Minoru Matsuguma, Kenji Matsuda, Akira Higeta | 2014-12-09 |
| 7483647 | Cartridge having a molded resin complex | Akira Suzuki, Osamu Anan | 2009-01-27 |
| 6947685 | Process cartridge and electrophotographic image forming apparatus | Takeshi Arimitsu, Kouji Miura, Hideki Maeshima | 2005-09-20 |
| 6859629 | Image forming apparatus having developer container with light transmitting window used for remaining developer amount detection | Koji Miura, Kojiro Yasui, Takeshi Arimitsu | 2005-02-22 |
| D474497 | Image forming apparatus | Tachio Kawai, Kanji Yokomori, Tadashi Horikawa, Takeshi Arimitsu, Koji Hashimoto +1 more | 2003-05-13 |
| D474232 | Image forming apparatus | Tachio Kawai, Kanji Yokomori, Tadashi Horikawa, Takeshi Arimitsu, Koji Hashimoto +1 more | 2003-05-06 |
| 6553189 | Optical guide, process cartridge, and electrophotographic image forming apparatus | Tadashi Horikawa | 2003-04-22 |
| 6505007 | Developer remaining amount detecting method, developing device, process cartridge and electrophotographic image forming apparatus | Koji Miura, Tatsuya Suzuki | 2003-01-07 |
| 6411791 | Developing apparatus including a developer charging member shaft and a holding member including a shaft guide groove | Susumu Nittani, Tatsuya Suzuki | 2002-06-25 |
| 6336017 | Mounting member for mounting a flange to an end of a cylindrical member of an electrophotographic photosensitive drum of a process cartridge, such a flange, such a drum, and such a process cartridge | Shigeo Miyabe, Takeshi Arimitsu | 2002-01-01 |
| 6282390 | Process cartridge and electrophotographic image forming apparatus | Shigeo Miyabe, Takeshi Arimitsu | 2001-08-28 |
| 6167219 | Grounding member, flange, photosensitive drum, process cartridge and electrophotographic image forming apparatus | Shigeo Miyabe, Kouji Miura | 2000-12-26 |
| 6061538 | Process cartridge, electrophotographic image forming apparatus and electrophotographic image forming apparatus transmissions method | Takeshi Arimitsu, Kouji Miura | 2000-05-09 |