Core material for resin-filled ferrite carrier and ferrite carrier for electrophotographic developer, and electrophotographic developer using the ferrite carrier

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United States of America Patent

PATENT NO 9201328
APP PUB NO 20140287355A1
SERIAL NO

14219162

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Abstract

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Disclosed are a resin-filled ferrite carrier core material for an electrophotographic developer, including a porous ferrite particle having an average compression strength of 100 mN or more and a coefficient of variation of the compression strength of 50% or less, a ferrite carrier obtained by filling a resin in the voids of the ferrite carrier core material, and an electrophotographic developer using the ferrite carrier.

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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
Sawamoto, Hiroki Chiba, JP 21 79
Sugiura, Takao Chiba, JP 31 97

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