ELECTRIC WAVE ABSORBER AND MANUFACTURING METHOD OF THE SAME

Title:

ELECTRIC WAVE ABSORBER AND MANUFACTURING METHOD OF THE SAME

Document Type and Number:

Japanese Patent JP2004140322

Kind Code:

A

Abstract:

To provide an electric wave absorber, wherein an imaginary part μ" of complex permeability is high over a wide range of a frequency band ranging from several hundreds MHz to several GHz, and which is superior in electromagnetic wave suppression effect in the high-frequency band.

In the electric wave absorber, an Fe group amorphous soft magnetic alloy in which the temperature interval ΔTx of a supercooled fluid represented by the equation ΔTx=Tx-Tg (Tx is a crystallization initiating temperature, and Tg is a glass transition temperature.) is 25 K or higher and resin are mixed, solidified and molded. The resin is one of a fluorine thermoplastic elastomer, fluorinated polyolefin resin, perfluoroalkoxy resin. fluorinated ethylene propylene copolymer, polyimide resin, or epoxy resin.

Inventors:

NAITO YUTAKA
HAYAMA TAKESHI
MORI KUNIO
ORAVEC JAN

Application Number:

JP2003143567A

Publication Date:

May 13, 2004

Filing Date:

May 21, 2003

Export Citation:

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Assignee:

ALPS ELECTRIC CO LTD

International Classes:

B22F9/04; B22F1/00; B22F1/02; B22F3/00; B22F9/08; C08K3/08; C08L23/28; C08L63/00; C08L79/08; C22C45/02; H01B1/22; H01F1/00; H01F1/153; H01F1/26; H05K9/00; (IPC1-7): H01F1/00; B22F1/02; B22F3/00; B22F9/04; B22F9/08; C22C45/02; H01F1/153; H01F1/26; H05K9/00

Attorney, Agent or Firm:

Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama

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