NOISE ABSORBING ELEMENT USING COMPOSITE MAGNETIC MATERIAL

Title:

NOISE ABSORBING ELEMENT USING COMPOSITE MAGNETIC MATERIAL

Document Type and Number:

Japanese Patent JPH11273925

Kind Code:

A

Abstract:

To suppress electromagnetic interference noises, extending from MHz band to GHz band, which propagate on a line by using a composite magnetic material whose main component is Si-Fe metal magnetic powder for improved frequency characteristics in impedance.

A conductive line 2 penetrates a composite magnetic body 1 whose main component is Si-Fe metal magnetic powder. The composite magnetic body 1 is obtained by blending and kneading the Si-Fe metal magnetic powder with thermoplastic resin powder as a binder, then heated and molded into a cylindrical shape. A means for integrating the composite magnetic body and the conductive line 2 is added, as required.

Inventors:

AKINO NAOHARU
TANAKA TAKASHI
SASAKI HIDENORI
AKACHI YOSHIAKI

Application Number:

JP9071498A

Publication Date:

October 08, 1999

Filing Date:

March 20, 1998

Export Citation:

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Assignee:

KANKYO DENJI GIJUTSU KENKYUSHO
TDK CORP

International Classes:

H01F1/20; H01F17/04; (IPC1-7): H01F1/20

Attorney, Agent or Firm:

Takashi Murai

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