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Nobuhiko Umezawa

Ricoh

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Publication

Featured researches published by Nobuhiko Umezawa.

Archive | 2000

Method and apparatus for forming an image capable of supplying a proper amount of a lubricant to each image forming section

Takatsugu Fujishiro; Nobuhiko Umezawa; Nobuto Yokokawa; Atsushi Takehara; Masayuki Ueda

Archive | 1997

Image forming apparatus having a mounting/dismounting mechanism

Yuichi Aoyama; Makoto Obu; Masaki Hiroi; Katsuaki Miyawaki; Nobuhiko Umezawa; Masami Hiramatsu

Archive | 2001

Method and apparatus for image developing capable of effectively forming an even development agent layer

Shuuichi Endoh; Osamu Endou; Nobuhiko Umezawa

Archive | 1997

Image forming apparatus and cleaning device for transfer material conveyor belt

Nobuhiko Umezawa; Harumitsu Mashiko

Archive | 1998

Developing unit for an image forming apparatus having a magnetic rotating blade agitator

Takatsugu Fujishiro; Nobuhiko Umezawa; Hajime Oyama; Motonori Hanada

Archive | 1993

Color image forming apparatus utilizing liquid development

Nobuaki Kubo; Yuichi Aoyama; Nobuhiko Umezawa

Archive | 2005

Method and apparatus for image forming capable of effectively regulating a toner layer, developing mechanism for the apparatus, and a process cartridge provided in the apparatus

Nobuhiko Umezawa; Yoshitake Shimizu; Takafumi Miyazaki

Archive | 2004

Image forming apparatus with reversely rotated developer bearing members

Noriyuki Kimura; Nobuhiko Umezawa; Takeroh Kurenuma; Hideyuki Takemoto

Archive | 2005

Developing device with a developer regulating member and its manufacturing method

Takafumi Miyakazi; Yoshitake Shimizu; Nobuhiko Umezawa

Archive | 2005

Developing mechanism for the apparatus, and a process cartridge and image forming device

Nobuhiko Umezawa; Yoshitake Shimizu; Takafumi Miyazaki

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Osamu Endou

Ricoh

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Shuuichi Endoh

Ricoh

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Yoshitake Shimizu

Ricoh

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Takafumi Miyazaki

Ricoh

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Takatsugu Fujishiro

Ricoh

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Yuichi Aoyama

Ricoh

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Atsushi Takehara

Ricoh

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Hajime Oyama

Ricoh

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Harumitsu Mashiko

Ricoh

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Hideyuki Takemoto

Ricoh

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