Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Koji Fujita0
Date of Patent
May 29, 2007
0Patent Application Number
105172900
Date Filed
April 14, 2003
0Patent Primary Examiner
Patent abstract
In order to effectively prevent diffusion of a harmful substance to a non-polluted soil side with a relatively simple and inexpensive construction without requiring a large-scale system, a pollution diffusion preventive wall member is installed underground for partitioning between a polluted soil side and a non-polluted soil side, the wall member being formed of wall forming material having water-permeability and containing a rare earth compound carried therein.
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