Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10712684 | Developing roller, electrophotographic process cartridge and electrophotographic image forming apparatus | Kazuhito Wakabayashi, Kazuaki Nagaoka, Ryo Sugiyama, Minoru Nakamura | 2020-07-14 |
| 10365580 | Developing member, electrophotographic process cartridge, and electrophotographic image forming apparatus | Makoto Souma, Wataru Moriai | 2019-07-30 |
| 8874007 | Developing unit and electrophotographic image forming apparatus | Minoru Nakamura, Shohei Urushihara, Masaki Yamada, Yasushi Katsuta | 2014-10-28 |
| 8798508 | Developing member, process cartridge, and electrophotographic apparatus | Masaki Yamada, Takashi Koyanagi, Minoru Nakamura, Yuji Sakurai, Shohei Urushihara | 2014-08-05 |
| 8768226 | Developer support member, electrophotographic process cartridge and electrophotographic image forming apparatus | Takashi Koyanagi, Masaki Yamada, Yuji Sakurai | 2014-07-01 |
| 8768227 | Developing member including elastic member containing cured product of addition-curing silicone rubber mixture, processing cartridge including the developing member, and electrophotographic apparatus including the developing member | Shohei Urushihara, Minoru Nakamura, Masaki Yamada, Takashi Kusaba | 2014-07-01 |
| 8745870 | Regenerated elastic roller manufacturing process, regenerated elastic roller, electropohotographic process cartridge, and electropohotographic image forming apparatus | Masahiro Watanabe, Kazuaki Nagaoka | 2014-06-10 |
| 8655222 | Developing member, process cartridge, and electrophotographic image forming apparatus | Minoru Nakamura, Shohei Urushihara, Takashi Koyanagi, Masaki Yamada | 2014-02-18 |
| 8600273 | Developing roller, process cartridge, and electrophotographic apparatus | Masaki Yamada, Takashi Kusaba, Yuji Sakurai, Toru Ishii | 2013-12-03 |
| 8529806 | Process for producing regenerated elastic roller | Takashi Kusaba, Shohei Urushihara | 2013-09-10 |
| 8323751 | Process for producing roller for electrophotography | Yuji Sakurai, Shohei Urushihara | 2012-12-04 |
| 8176632 | Regenerated elastic roller manufacturing process, regenerated elastic roller, electrophotographic process cartridge, and electrophotographic image forming apparatus | Masahiro Watanabe, Kazuaki Nagaoka | 2012-05-15 |
| 7798948 | Electrophotographic developing member, process for its production, electrophotographic process cartridge and electrophotographic image forming apparatus | Arihiro Yamamoto, Kazutoshi Ishida, Minoru Nakamura | 2010-09-21 |
| 7060406 | Light-receiving member, image-forming apparatus, and image-forming method | Shigenori Ueda, Toshiyuki Ehara, Junichiro Hashizume, Ryuji Okamura, Masaya Kawada +2 more | 2006-06-13 |
| 6846600 | Electrophotographic photosensitive member, process for its production, and electrophotographic apparatus | Toshiyuki Ehara, Junichiro Hashizume, Masaya Kawada, Tetsuya Karaki, Hironori Ohwaki +2 more | 2005-01-25 |
| 6636715 | Photosensitive member and image forming apparatus having the same | Koji Yamazaki, Toshiyuki Ehara, Masaya Kawada, Tetsuya Karaki, Hironori Owaki | 2003-10-21 |
| 6586149 | Light-receiving member, image-forming apparatus, and image-forming method | Shigenori Ueda, Toshiyuki Ehara, Junichiro Hashizume, Ryuji Okamura, Masaya Kawada +2 more | 2003-07-01 |
| 6534228 | Electrophotographic photosensitive member and image forming apparatus | Masaya Kawada, Toshiyuki Ehara, Tetsuya Karaki, Hironori Ohwaki | 2003-03-18 |
| 6531253 | Electrophotographic photosensitive member and apparatus using same | Toshiyuki Ehara, Koji Yamazaki, Masaya Kawada, Tetsuya Karaki, Hironori Ohwaki | 2003-03-11 |
| 6285385 | Electrophotographic method and apparatus which employs light beam irradiation to form an electrostatic image on a surface of a photosensitive member | Hironori Owaki, Koji Yamazaki, Toshiyuki Ehara, Tetsuya Karaki | 2001-09-04 |