FERRITE SINTERED MAGNET, FERRITE PARTICLES, BONDED MAGNET, MOTOR, AND GENERATOR
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United States of America Patent
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Issued Date -
Sep 14, 2023
app pub date -
May 19, 2023
filing date -
Dec 22, 2016
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Abstract
Provided is a ferrite sintered magnet including a ferrite phase having a magnetoplumbite-type crystal structure. x, y, and m satisfy the following Equations (1), (2), and (3) when composition of the ferrite sintered magnet is represented by R1-xAxFem-yCoy, where R denotes at least one kind of element selected from rare earth elements including Y and A denotes Ca or Ca and elements including at least one kind selected from Sr or Ba. The content of B in the ferrite sintered magnet is from 0.1% to 0.6% by mass in terms of B2O3.
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