Inventor
OHTSU KIMIYO
US4 patents
Patents
4 patentsUS5229449AJul 20, 1993
Copolymer of polymerizable components in naphtha oil and maleic anhydride, process for producing said copolymer, and derivatives thereof
KAWASAKI STEEL CO7 citations72
US5191049AMar 2, 1993
Copolymer of polymerizable components in naphtha oil and maleic anhydride, process for producing said copolymer, and derivatives thereof
KAWASAKI STEEL CO9 citations72
US5179170AJan 12, 1993
Dispersant and cement admixture
KAWASAKI STEEL CO9 citations72
US5166275ANov 24, 1992
Copolymer of polymerizable components in naphtha oil and maleic anhydride, process for producing said copolymers, and derivatives thereof
KAWASAKI STEEL CO6 citations61