Composite magnetic body, and electromagnetic interference suppressing body using the same
AssigneeNEC Tokin Corporation
InventorYoshio Awakura
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Abstract
A composite magnetic body 1, comprising a soft magnetic powder (2) and a binding agent (3), in which the specific surface area of the soft magnetic powder (2) is 0.1-3 m2/g. The surface state of the soft magnetic powder contained in the composite magnetic body is defined in terms of specific surface area, and self-extinguishing properties, i.e. fire resistance properties, are obtained. An electromagnetic interference suppressing body is obtained using this composite magnetic body.
Claims20
A composite magnetic body containing a soft magnetic powder and a binding agent, wherein the soft magnetic powder is a magnetic alloy powder having a specific surface area of 0.1-3 m2/g.
A composite magnetic body containing a soft magnetic powder and a binding agent, wherein said soft magnetic powder has a specific surface area of 0.1-3 m2/g and an aspect ratio of 3 or more.
A composite magnetic body containing:
- a soft magnetic powder and a binding agent, wherein the soft magnetic powder has a specific surface area of 0.1-3 m2/g,
- a fire retardant containing at least one of a halogen, phosphorous, magnesium hydroxide, aluminum hydroxide, and
- an antimony-containing oxide fire retardant aid.
An electromagnetic interference suppressing body comprising a composite magnetic body containing a soft magnetic powder and a binding agent, wherein the soft magnetic powder is a magnetic alloy powder having a specific surface area of 0.1-3 m2/g.
An electromagnetic interference suppressing body comprising a composite magnetic body containing a soft magnetic powder and a binding agent, wherein said soft magnetic powder has a specific surface area of 0.1-3 m2/g and an aspect ratio of 3 or more.
An electromagnetic interference suppressing body comprising a composite magnetic body containing:
- a soft magnetic powder and a binding agent, wherein the soft magnetic powder has a specific surface area of 0.1-3 m2/g,
- a fire retardant containing at least one of a halogen, phosphorous, magnesium hydroxide, and aluminum hydroxide, and
- an antimony-containing oxide fire retardant aid.
Dependencies are inferred from the claim text.