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US 6,183,657 B2Granted
Core material for noise filter
AssigneeDaido Tokushuko Kabushiki Kaisha
InventorsAkihiko Saito, Michiharu Ogawa, Kazuhisa Tsutsui, Shinichiro Yahagi
Life of this patent
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Abstract
In a core material for the noise filter, powders of a flat and soft magnetic material is dispersed and buried into an insulating material such as rubber or plastic.
Claims6
A core material for a noise filter comprising:
- powders of soft magnetic material and an insulating material, said powders being dispersed and buried in said insulating material, wherein the powders of said soft magnetic material is composed of Cr:
- 0.5 to 20 wt %, Si:
- 0.001 to 1.0 wt %, Al:
- 0.01 to 20 wt % and the balance being Fe and unavoidable impurities.
1 more element
Dependencies are inferred from the claim text.