Issued Patents All Time
Showing 26–50 of 70 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D788213 | Process cartridge for image forming apparatus | Masato Tanabe, Shuichi Gofuku, Hiroki Shimizu, Kuniaki Hirukawa | 2017-05-30 |
| 9658591 | Cleaning apparatus, process cartridge, and image forming apparatus | Yoshihiro Mitsui, Shuichi Gofuku, Go Shindo, Jun Miura | 2017-05-23 |
| 9632479 | Process cartridge and image forming apparatus | Masato Tanabe, Keisuke Nomura, Hiroki Shimizu | 2017-04-25 |
| 9618880 | Developing device, process cartridge, and electrophotographic image forming apparatus | Yu Fukasawa, Kuniaki Hirukawa | 2017-04-11 |
| 9535370 | Developing device, process cartridge, and electrophotographic image forming apparatus | Yu Fukasawa, Kuniaki Hirukawa | 2017-01-03 |
| 9519264 | Process cartridge and image forming apparatus | Kuniaki Hirukawa, Shuichi Gofuku, Yoshihiro Mitsui | 2016-12-13 |
| 9507318 | Process cartridge and electrophotographic image forming apparatus | Kazunari Murayama, Akira Yoshimura | 2016-11-29 |
| 9310713 | Developer container, developing device, process cartridge, and image forming apparatus | Kuniaki Hirukawa, Shuichi Gofuku, Shuhei Kawasaki, Hisashi Taniguchi, Kodai Hayashi +1 more | 2016-04-12 |
| 9285756 | Regulating device, image bearing member cleaning device, developing device, cleaning device, process cartridge and image forming apparatus | Yosuke Kashiide, Susumu Nittani | 2016-03-15 |
| 9239544 | Development apparatus, process cartridge, and image forming apparatus | Kuniaki Hirukawa, Shuichi Gofuku | 2016-01-19 |
| 9122237 | Process cartridge and electrophotographic image forming apparatus | Kazunari Murayama, Akira Yoshimura | 2015-09-01 |
| 9098012 | Electrophotographic image forming apparatus and process cartridge | Shinya Yamamoto, Taku Watanabe, Yasunori Toriyama, Kuniaki Hirukawa | 2015-08-04 |
| 9081323 | Developing device, process cartridge, and image forming apparatus | Kuniaki Hirukawa, Yu Fukasawa | 2015-07-14 |
| 9075387 | Cartridge and image forming apparatus | Masato Tanabe, Hideki Kakuta | 2015-07-07 |
| 9063501 | Developer accommodating unit with light guide member for detecting remaining toner amount | Kuniaki Hirukawa, Shuichi Gofuku | 2015-06-23 |
| 9046814 | Developing device, process cartridge, and image forming apparatus | Kuniaki Hirukawa, Shuichi Gofuku | 2015-06-02 |
| 8831487 | Regulating device, image bearing member cleaning device, developing device, cleaning device, process cartridge and image forming apparatus | Yosuke Kashiide, Susumu Nittani | 2014-09-09 |
| 8688003 | Process cartridge and electrophotographic image forming apparatus | Kazunari Murayama, Akira Yoshimura | 2014-04-01 |
| 8666281 | Process cartridge and developing device | Kaori Ueda, Shuichi Gofuku | 2014-03-04 |
| 8583006 | Electrophotographic image forming apparatus and process cartridge with electrical contacts that urge developer roller to photosensitive drum | Kazunari Murayama, Masaki Kakitani, Akinori Takayama | 2013-11-12 |
| 8565639 | Process cartridge and image forming apparatus | Susumu Nittani, Kazunari Murayama, Yukio Kubo | 2013-10-22 |
| 8369743 | Process cartridge and electrophotographic image forming apparatus | Kazunari Murayama, Akira Yoshimura | 2013-02-05 |
| 8213828 | Electrophotographic image forming apparatus and process cartridge mounted thereto having contacts electrically connecting with an electrical contact | Kazunari Murayama, Masaki Kakitani, Akinori Takayama | 2012-07-03 |
| 8059986 | Cartridge assembling method and cartridge reassembling method | Masato Tanabe, Kazunari Murayama | 2011-11-15 |
| 7813671 | Process cartridge and electrophotographic image forming apparatus | Susumu Nittani, Masato Tanabe, Isao Koishi | 2010-10-12 |