发明授权
- 专利标题： Paving material for absorbing electromagnetic wave and pavement structure using it
- 专利标题（中）： 用于吸收电磁波和路面结构的铺路材料
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申请号： US10491319申请日： 2001-09-28
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公开(公告)号： US07160049B2公开(公告)日： 2007-01-09
- 发明人: Toshio Saito , Kenichi Harakawa , Yoshitaka Wakinaka , Takeshi Kunishima , Kenichi Yoshimura , Yoshifumi Fujii , Shin-ichiro Andoh , Takeo Iwata , Masakazu Sato
- 申请人： Toshio Saito , Kenichi Harakawa , Yoshitaka Wakinaka , Takeshi Kunishima , Kenichi Yoshimura , Yoshifumi Fujii , Shin-ichiro Andoh , Takeo Iwata , Masakazu Sato
- 申请人地址： JP Osaka JP Tokyo JP Tokyo
- 专利权人： Takenaka Corporation,Takenaka Road Construction Co., Ltd.,Takenaka Civil Engineering & Construction Co., Ltd.
- 当前专利权人： Takenaka Corporation,Takenaka Road Construction Co., Ltd.,Takenaka Civil Engineering & Construction Co., Ltd.
- 当前专利权人地址： JP Osaka JP Tokyo JP Tokyo
- 代理机构： Brown Raysman Millstein Felder & Steiner LLP
- 国际申请： PCT/JP01/08532 WO 20010928
- 国际公布： WO03/031722 WO 20030417
- 主分类号： E01C7/22
- IPC分类号： E01C7/22 ; E01C7/00
摘要：
An electromagnetic absorber formed of conductive fiber or the like, such as carbon fiber having an overall length corresponding to the wavelength of electromagnetic waves to be absorbed, is mixed into a base material to form an electromagnetic wave-absorbing pavement material. The electromagnetic wave-absorbing pavement material is used to form a pavement having an electromagnetic wave absorbing course. Further, an electromagnetic wave reflecting course is disposed under the electromagnetic wave absorbing course, and the electric length of the electromagnetic wave reflecting course is set to a predetermined value in relation to the dielectric constant so that electromagnetic waves reflecting off the surface of the electromagnetic wave absorbing course and electromagnetic waves reflecting off the electromagnetic wave reflecting course have opposite phases and thereby cancel each other out, whereby the electromagnetic waves are absorbed well.
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