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Kazuhiko Umemura

Ricoh

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Archive | 2004

Developer container, developer supplying device, and image forming apparatus

Hiroshi Hosokawa; Kiyonori Tsuda; Satoshi Narumi; Ryuta Takeichi; Yuji Arai; Masanori Kawasumi; Kazuhiko Umemura; Hiroshi Ishii; Yutaka Fukuchi; Kazuki Suzuki; Yuusuke Noguchi; Kazuosa Kuma; Makoto Kikura

Archive | 2002

Toner, developer, image-forming method and image-forming device

Hideki Sugiura; Satoshi Mochizuki; Kazuhiko Umemura; Yasuo Asahina; Minoru Masuda; Kohsuke Suzuki; Tomomi Tamura; Yasuaki Iwamoto

Archive | 2003

External additive for toner for electrophotography, toner for electrophotography, double-component developer for electrophotography, image-forming process using the toner, and image-forming apparatus using the toner

Hideki Sugiura; Satoshi Mochizuki; Kazuhiko Umemura; Shinya Nakayama; Yasuo Asahina

Archive | 2003

Toner for developing a latent electrostatic image, developer using the same, full-color toner kit using the same, image-forming apparatus using the same, image-forming process cartridge using the same and image-forming process using the same

Hideki Sugiura; Satoshi Mochizuki; Yasuo Asahina; Kazuhiko Umemura; Minoru Masuda; Tomomi Tamura

Archive | 2002

Carrier for electrophotography and developer using the same

Kousuke Suzuki; Satoshi Mochizuki; Yasuo Asahina; Kazuhiko Umemura; Hideki Sugiura; Minoru Masuda; Tomomi Tamura

Archive | 2004

Toner for electrophotography and image forming apparatus

Shinya Nakayama; Satoshi Mochizuki; Yasuaki Iwamoto; Yasuo Asahina; Kazuhiko Umemura; Hideki Sugiura; Hisashi Nakajima; Tomoyuki Ichikawa; Tomoko Utsumi; Koichi Sakata; Akihiro Kotsugai; Osamu Uchinokura; Masayuki Ishii

Archive | 2003

Toner for developing electrostatic image, developer, process for forming image, and image forming apparatus

Hideki Sugiura; Satoshi Mochizuki; Yasuaki Iwamoto; Kazuhiko Umemura; Yasuo Asahina; Shinya Nakayama

Archive | 2002

Dry toner for developing electrostatic images

Satoshi Mochizuki; Hideki Sugiura; Kazuhiko Umemura; Minoru Masuda; Kohsuke Suzuki; Tomomi Suzuki; Yasuo Asahina

Archive | 1997

Ink composition and recording method using the same

Kazuo Tsubuko; Nobutaka Kinoshita; Tsuyoshi Asami; Akihiko Gotoh; Kazuhiko Umemura; Kazuyo Numazu Mizuno; Makoto Okawara

Archive | 2003

Image forming apparatus using a toner container and a process cartridge

Kiyonori Tsuda; Hiroshi Hosokawa; Masanori Kawasumi; Satoshi Narumi; Ryuta Takeichi; Kazuhiko Umemura; Yuji Arai

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