Inventor

YOKOTA SEKIJI

JP4 patents

Patents

4 patents

US4174992ANov 20, 1979

Water proofing compositions for cement mortar or concrete and methods of application therefor

HAYAKAWA RUBBER22 citations80

US4338224AJul 6, 1982

Water proofing compositions for cement mortar or concrete

HAYAKAWA RUBBER7 citations71

US4174993ANov 20, 1979

Water proofing compositions for cement mortar or concrete and methods of application therefor

HAYAKAWA RUBBER11 citations71

US4193831AMar 18, 1980

Water proofing compositions for cement mortar or concrete and method employing same

HAYAKAWA RUBBER5 citations60