Resin-coated carrier for electrophotographic developer and electrophotographic developer using the resin-coated carrier

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United States of America Patent

PATENT NO 9329515
APP PUB NO 20140295342A1
SERIAL NO

14227564

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Abstract

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Provided is a resin-coated carrier for an electrophotographic developer, wherein the surface of a magnetic particle is coated with a mixed resin composed of two resins, and when the two resins are denoted by the resin 1 and the resin 2, respectively, the relative difference between the respective adsorbed moisture amounts of the resin 1 and the resin 2 at a temperature of 30° C. and a relative humidity of 80% satisfies the following formula (1):

description='In-line Formulae' end='lead'1≦|ax−b(100−x)|≦10  (1)description='In-line Formulae' end='tail'

    a: the adsorbed moisture content (% by weight) of the resin 1 b: the adsorbed moisture content (% by weight) of the resin 2 x: the content percentage of the resin 1 (0

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Patent Owner(s)

Patent OwnerAddress
POWDERTECH CO LTDKASHIWA-SHI CHIBA 277-8557

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aoki, Masashi Chiba, JP 66 546
Ishikawa, Makoto Chiba, JP 200 1853
Uemura, Tetsuya Chiba, JP 63 1067

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