Ferrite particle having outer shell structure, ferrite carrier core material for electrophotographic developer, and electrophotographic developer
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United States of America Patent
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Jun 21, 2016
Grant Date -
Mar 10, 2016
app pub date -
Jan 16, 2015
filing date -
Jan 20, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
It is an object of the present invention to provide a ferrite particle having a low apparent density, and being capable of maintaining various properties thereof in controllable states and filling a fixed volume in a small weight thereof, a ferrite carrier core material and a ferrite carrier for an electrophotographic developer using the ferrite particle, and the like. In order to achieve the object, there are employed the ferrite particle having a porous structure in the interior thereof and an outer shell structure on the outer periphery thereof, the ferrite carrier core material and the ferrite carrier for an electrophotographic developer using the ferrite particle, and an electrophotographic developer using the ferrite carrier.
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