Metal magnetic material and electronic component
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United States of America Patent
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Apr 14, 2020
Grant Date -
Feb 9, 2017
app pub date -
Apr 17, 2015
filing date -
Apr 18, 2014
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Abstract
Provided are: a metal magnetic material capable of reliably establishing insulation while realizing high saturation magnetic flux density; and an electronic component using the metal magnetic material and having low loss and good DC superimposition characteristics. The metal magnetic material for forming a component body of the electronic component comprises a metal magnetic alloy powder consisting of iron and silicon or containing iron, silicon and chromium; and an additional element added to the metal magnetic alloy powder, wherein the additional element is more easily oxidizable in the equilibrium state of oxidation-reduction reaction than the elements contained in the metal magnetic alloy powder. The component body (11) is internally formed with a coil pattern consisting of a plurality of coil conductor patterns (12A to 12C). The metal magnetic material is less likely to undergo degradation in magnetic properties even after it is subjected to a heat treatment at a high temperature, so that it becomes possible to perform a heat treatment for reducing a resistance of the coil pattern, at an adequate temperature.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- MURATA MANUFACTURING CO. LTD.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Yamamoto, Makoto | Tsurugashima, JP | 283 | 3058 |
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