UNNECESSARY RADIO WAVE RESTRAINING METHOD AND ROAD ANCILLARY EQUIPMENT

Japanese Patent JP2002061130

A

To provide an unnecessary radio wave restraining method for restraining an unnecessary radio wave generated by surrounding road ancillary equipment at communication or sensing time using a radio wave and the road ancillary equipment for restraining generation of the unnecessary radio wave.

A radio wave absorber 5 is installed on the road ancillary equipment 21 and 22 or a main part of the road ancillary equipment 21 and 22 is formed of the radio wave absorber 5 for restraining the unnecessary radio wave generated by the surrounding road ancillary equipment 21 and 22 at communication or sensing time using the radio wave so that generation of the unnecessary radio wave is restrained by this radio wave absorber 5.

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KURIHARA HIROSHI
HIRAI YOSHITO
TAKIZAWA KOJI
MIYASATO FUKUJI
FUJITA SATOSHI
HAGIWARA TORU
KIMURA KENICHI
TAFU ICHIRO

JP2001134785A

February 28, 2002

May 02, 2001

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SEKISUI JUSHI KK
TDK CORP

E01F8/00; B60R21/00; E01F8/02; E01F9/00; E01F9/623; E01F9/669; E01F9/677; E01F9/685; G08G1/09; H01Q17/00; H04B15/02; H05K9/00; (IPC1-7): E01F9/00; B60R21/00; E01F8/00; E01F8/02; G08G1/09; H01Q17/00; H04B15/02; H05K9/00

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