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Title:
MATERIAL CONTAINING ELECTROMAGNETIC WAVE ABSORBER AND METHOD FOR PRODUCING THE SAME AND METHOD FOR MANUFACTURING STRUCTURE USING IT
Document Type and Number:
WIPO Patent Application WO/2003/032439
Kind Code:
A1
Abstract:
A material produced by integrating an electromagnetic wave absorber around a granular material, a material produced by dispersing and integrating an electromagnetic wave absorber internally, and a material produced by admixing an electromagnetic wave absorber to a basic material to form countless air gaps and dispersing the electromagnetic wave absorber to a sidewall part surrounding the air gap. A structure is made by mixing a granular material of the electromagnetic wave absorber to constitute a structure distributed uniformly with the electromagnetic wave absorber. A material for bonding aggregate is mixed with the electromagnetic wave absorber to produce a granular material and the bonding material is fused while being mixed with the aggregate and then solidified to constitute a structure distributed uniformly with the electromagnetic wave absorber.

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Inventors:
Saito, Toshio c/o TAKENAKA Research & Development Institute (5-1 Otsuka 1-chom, Inzai-shi Chiba, 270-1352, JP)
Harakawa, Kenichi c/o TAKENAKA Research & Development Institute (5-1 Otsuka 1-chom, Inzai-shi Chiba, 270-1352, JP)
Kunishima, Takeshi c/o TAKENAKA ROAD CONSTRUCTION CO. LTD. (21-1, Ginza 8-chom, Chuo-ku Tokyo, 104-0061, JP)
Fujii, Yoshifumi c/o TAKENAKA CIVIL ENGINEERING & CONSTRUCTION CO. LTD. (21-1, Ginza 8-chom, Chuo-ku Tokyo, 104-8234, JP)
Andoh, Shin-ichiro c/o TAKENAKA CIVIL ENGINEERING & CONSTRUCTION CO. LTD. (21-1, Ginza 8-chom, Chuo-ku Tokyo, 104-8234, JP)
Application Number:
PCT/JP2001/008533
Publication Date:
April 17, 2003
Filing Date:
September 28, 2001
Export Citation:
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Assignee:
TAKENAKA CORPORATION (1-13, Hom-machi 4-chome Chuo-k, Osaka-shi Osaka, 541-0053, JP)
TAKENAKA ROAD CONSTRUCTION CO., LTD. (21-1, Ginza 8-chome Chuo-ku, Tokyo, 104-0061, JP)
TAKENAKA CIVIL ENGINEERING & CONSTRUCTION CO., LTD. (21-1, Ginza 8-chome Chuo-ku, Tokyo, 104-8234, JP)
Saito, Toshio c/o TAKENAKA Research & Development Institute (5-1 Otsuka 1-chom, Inzai-shi Chiba, 270-1352, JP)
Harakawa, Kenichi c/o TAKENAKA Research & Development Institute (5-1 Otsuka 1-chom, Inzai-shi Chiba, 270-1352, JP)
Kunishima, Takeshi c/o TAKENAKA ROAD CONSTRUCTION CO. LTD. (21-1, Ginza 8-chom, Chuo-ku Tokyo, 104-0061, JP)
Fujii, Yoshifumi c/o TAKENAKA CIVIL ENGINEERING & CONSTRUCTION CO. LTD. (21-1, Ginza 8-chom, Chuo-ku Tokyo, 104-8234, JP)
Andoh, Shin-ichiro c/o TAKENAKA CIVIL ENGINEERING & CONSTRUCTION CO. LTD. (21-1, Ginza 8-chom, Chuo-ku Tokyo, 104-8234, JP)
International Classes:
E01C7/00; E01C7/08; H01F1/00; H01Q17/00; H05K9/00; (IPC1-7): H01Q17/00; E01C7/26; E01F9/00; H05K9/00
Foreign References:
JP2001313489A
JP2001311105A
JP2001313490A
JPS4525625B1
JP2000349490A
JPH10202082A
JPH10258223A
JPS6482600A
JPH06122568A
JPS62268200A
JP2899874B21999-06-02
Attorney, Agent or Firm:
Nakajima, Jun (TAIYO, NAKAJIMA & KATO Seventh Floor, HK-Shinjuku Bldg., 3-17, Shinjuku 4-chom, Shinjuku-ku Tokyo, 160-0022, JP)
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