Insulator-coated soft magnetic powder, powder magnetic core, magnetic element, electronic device, and vehicle
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United States of America Patent
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May 31, 2022
Grant Date -
Apr 4, 2019
app pub date -
Sep 28, 2018
filing date -
Sep 29, 2017
priority date (Note) -
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Abstract
An insulator-coated soft magnetic powder includes a plurality of particles each including a core which contains a soft magnetic material, and an insulating layer which is provided on the surface of the core and contains a glass material including Bi2O3 as a main component. The content of an alkali metal in the insulating layer is 5 mol % or less. The glass material further contains at least one of ZnO and B2O3. The content of Bi2O3 in the glass material is 40 mol % or more and 80 mol % or less.
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