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Koji Hirakura

Ricoh

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Publication

Featured researches published by Koji Hirakura.

Archive | 2004

Optical scanning lens, optical scanning device and image forming apparatus

Hiroyuki Suhara; Satoru Itoh; Tatsuya Ito; Takeshi Ueda; Yoshinori Hayashi; Magane Aoki; Kenichi Takanashi; Takao Yamaguchi; Taira Kouchiwa; Koji Hirakura; Seizo Suzuki

Archive | 1980

Toner concentration control apparatus

Koji Hirakura; Yasuo Sawada; Kenta Watase; Takahiko Kitamura

Archive | 1978

Toner image transfer method and apparatus for electrostatic photography

Yutaka Ebi; Koji Hirakura; Fuyuhiko Matsumoto; Wasaburo Ohta; Satoru Tomita

Archive | 1978

Toner composition for multiple copy electrostatic photography

Koji Hirakura; Itsuo Ikeda; Wasaburo Ohta; Zenjiro Okuno

Archive | 1981

Transfer medium separating device

Yoshihiro Ogata; Koji Sakamoto; Harumi Takahashi; Koji Hirakura

Archive | 1979

Toner developing ability measuring system for electrostatography

Koji Hirakura; Yasuo Sawada; Kenta Watase

Archive | 1982

Developing unit of dry type

Koji Hirakura; Masumi Ikesue

Archive | 1976

Electrostatic copying method for forming multiple copies

Koji Hirakura; Wasaburo Ohta; Tamio Ohhori; Masaaki Nomura

Archive | 1980

Transfer and separation apparatus of electrophotographic copying machine

Koji Hirakura; Yoshihiro Ogata; Koji Sakamoto; Harumi Takahashi

Archive | 1982

Process of exposing photosensitive member

Shigeru Suzuki; Yutaka Koizumi; Nobuyuki Yanagawa; Koji Hirakura; Chikara Imai

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Collaboration

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Wasaburo Ohta

Ricoh

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Fuyuhiko Matsumoto

Ricoh

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Kenta Watase

Ricoh

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Satoru Tomita

Ricoh

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Yasuo Sawada

Ricoh

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Yutaka Ebi

Ricoh

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Chikara Imai

Ricoh

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Harumi Takahashi

Ricoh

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Koji Sakamoto

Ricoh

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Nobuyuki Yanagawa

Ricoh

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