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Masafumi Ohta

Ricoh

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Publication

Featured researches published by Masafumi Ohta.

Archive | 1993

Positively-chargeable single-layered type electrophotographic photoconductor

Masao Yoshikawa; Masayuki Shoshi; Tetsuro Suzuki; Masakatsu Shimoda; Kaoru Teramura; Megumi Kawahara; Akio Kojima; Masaomi Sasaki; Masafumi Ohta

Archive | 1979

Electrophotographic element having charge transport layer

Takeo Kazami; Kiyoshi Sakai; Mitsuru Hashimoto; Masaomi Sasaki; Kyoji Tsutsui; Masafumi Ohta

Archive | 1993

Electroluminescent device comprising oxadiazole compounds luminescent material, oxadiazole compounds for the device, and method of producing oxadiazole compounds

Masafumi Ohta; Yohta Sakon; Toshihiko Takahashi; Chihaya Adachi; Kazukiyo Nagai

Archive | 1980

Electrophotographic photosensitive material with electron donors and electron acceptors

Akio Kozima; Mitsuru Hashimoto; Masafumi Ohta; Masaomi Sasaki; Zenjiro Okuno

Archive | 1978

Novel disazo compounds, process for the preparation of same and application of said disazo compounds and analogues thereof to electrophotographic sensitive materials

Masaomi Sasaki; Kiyoshi Sakai; Mitsuru Hashimoto; Masafumi Ohta; Kyoji Tsutsui

Archive | 1978

Electrophotographic elements containing trisazo compounds

Masafumi Ohta; Kiyoshi Sakai; Mitsuru Hashimoto; Akio Kozima; Masaomi Sasaki

Archive | 1994

Electrophotographic photoconductor and diamine compounds for use in the same

Mitsutoshi Anzai; Yasuo Murakami; Atsushi Takesue; Masaomi Sasaki; Tomoyuki Shimada; Tamotsu Aruga; Masafumi Ohta

Archive | 1985

Electrophotographic printing original plate and electrophotographic plate making process using the printing original plate

Kyoji Tsutsui; Mitsuru Hashimoto; Masafumi Ohta; Masaomi Sasaki

Archive | 1978

Electrophotographic material containing disazo compounds

Masaomi Sasaki; Kiyoshi Sakai; Mitsuru Hashimoto; Masafumi Ohta; Akio Kozima

Archive | 1978

Electrophotographic sensitive element having a photoconductive disazo pigment

Masaomi Sasaki; Kiyoshi Sakai; Mitsuru Hashimoto; Masafumi Ohta; Kyoji Tsutsui

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Masaomi Sasaki

Ricoh

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Mitsuru Hashimoto

Ricoh

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Kiyoshi Sakai

Ricoh

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Kyoji Tsutsui

Ricoh

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Akio Kozima

Ricoh

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Tomoyuki Shimada

Ricoh

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Mitsutoshi Anzai

Ricoh

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Yoshiki Yanagawa

Ricoh

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Tamotsu Aruga

Ricoh

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Yuuji Tanaka

Ricoh

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