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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Noise barrier wall
Patent number
6,019,189
Issue date
Feb 1, 2000
Bridgestone Corporation
Hiroshi Shima
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Noise barrier and method of installing same
Patent number
5,971,096
Issue date
Oct 26, 1999
Nihon Doro Kodan
Koich Matsumoto
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES