Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12321108 | Image forming apparatus | Kodai Hayashi, Issei Imamura, Takuya Oka | 2025-06-03 |
| 12158721 | Image forming apparatus controlling image forming and supply operations | Hisashi Taniguchi, Keitaro Nakata, TAKUTO KOBAYASHI | 2024-12-03 |
| 11988979 | Image forming apparatus with developing member that supplies toner to surface of image bearing member to form toner image | Hisashi Taniguchi, Bunro Noguchi, Kodai Hayashi, Keitaro Nakata | 2024-05-21 |
| 11099503 | Image forming apparatus | Yoshihiro Mitsui, Takuya Oka, Yasukazu Ikami | 2021-08-24 |
| 11073781 | Image forming apparatus that suppresses occurrence of image smearing by maintaining a metal soap on a surface of a photoconductor | Kosuke Ikada, Go Shindo, Keitaro Nakata, Hisashi Yamauchi, Yoshihiro Mitsui +2 more | 2021-07-27 |
| 11003106 | Process cartridge and image forming apparatus | Shinichi Hagiwara, Yoshihiro Mitsui, Kosuke Ikada, Kentaro Yamawaki | 2021-05-11 |
| 10852662 | Developing device, process cartridge and image forming apparatus | Takuya Oka, Yoshihiro Mitsui, Akinobu Saito, Kentaro Yamawaki | 2020-12-01 |
| 10656547 | Image forming apparatus mountable with image bearing member unit and developer bearing member | Shuhei Kawasaki, Kodai Hayashi, Keisuke Endoh | 2020-05-19 |
| 10642203 | Image forming apparatus | Takayoshi Kihara | 2020-05-05 |
| 10534288 | Developing device, process cartridge, and image forming apparatus | Kodai Hayashi | 2020-01-14 |
| 10031439 | Developing device having developer regulating member, process cartridge, and image forming apparatus | Takayoshi Kihara | 2018-07-24 |
| 9798266 | Image forming apparatus for preventing abnormally discharged image | Kosuke Ikada | 2017-10-24 |
| 9753395 | Image forming apparatus acquiring a duration of overcharge | Kosuke Ikada | 2017-09-05 |
| 8811833 | Image forming apparatus | Motoki Adachi, Masanori Tanaka, Hideo Kihara, Takashi Mukai, Shuhei Kawasaki +1 more | 2014-08-19 |
| 7711279 | Image forming apparatus with a predetermined potential difference between regions of an image bearing member | Kohei Matsuda, Tetsuya Kobayashi, Shinya Yamamoto, Masato Koyanagi, Kentaro Kawata | 2010-05-04 |
| 7593670 | Charging device including a contact charging member with silica thereon, process cartridge including a contact charging member, and image forming apparatus including such charging member | Kohei Matsuda, Tetsuya Kobayashi, Masato Koyanagi, Shinya Yamamoto, Kentarou Kawata +1 more | 2009-09-22 |
| 7457554 | Image forming apparatus wherein an image forming region and a non-image forming region are charged with different potentials | Kohei Matsuda, Tetsuya Kobayashi, Shinya Yamamoto, Masato Koyanagi, Kentaro Kawata | 2008-11-25 |
| 7277659 | Image forming apparatus and seal retractor | Tetsuya Kobayashi, Kohei Matsuda, Shinya Yamamoto, Masato Koyanagi, Kentaro Kawata | 2007-10-02 |
| 7209690 | Developing apparatus | Masato Koyanagi, Tetsuya Kobayashi, Shinya Yamamoto, Kohei Matsuda, Kentarou Kawata +1 more | 2007-04-24 |
| 7200350 | Image forming apparatus switching developing rollers of mounted process cartridges between contact and spaced states and switching the contact position of a feeding belt contactable to drums of the mounted cartridges | Shinya Yamamoto, Kohei Matsuda | 2007-04-03 |