FERRITE CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPER, FERRITE CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER AND METHODS FOR PRODUCING THE FERRITE CARRIER CORE MATERIAL AND THE FERRITE CARRIER, AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE FERRITE CARRIER

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United States of America Patent

APP PUB NO 20110244389A1
SERIAL NO

13071887

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Abstract

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/g and an average degree of circularity of 0.90 or more, wherein the Cl concentration of the ferrite carrier core material measured by an elution method is 0.1 to 100 ppm, a ferrite carrier for an electrophotographic developer obtained by coating the surface of the ferrite carrier core material with a resin, and methods for producing the ferrite carrier core material and the ferrite carrier, and an electrophotographic developer using the ferrite carrier.

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Patent Owner(s)

Patent OwnerAddress
POWDERTECH CO LTD217 TOYOFUTA KASHIWA-SHI CHIBA 2778557 ?2778557

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
KOJIMA, Takashi Kashiwa-shi, JP 231 1691
UEMURA, Tetsuya Kashiwa-shi, JP 63 1067

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