MAGNETIC POWDER, AND MANUFACTURING METHOD THEREOF
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United States of America Patent
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Jan 24, 2019
app pub date -
Sep 24, 2018
filing date -
Sep 24, 2018
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Abstract
A magnetic powder contains magnetic particles, a first coating layer disposed on surfaces of the magnetic particles and containing a first glass, and a second coating layer disposed on the first coating layer and containing a second glass different from the first glass. A method of manufacturing magnetic powder includes preparing magnetic particles, forming a first coating layer containing a first glass on surfaces of the magnetic particles, and forming a second coating layer containing a second glass different from the first glass on the first coating layer.
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