Inventor
YUASA TSUTOMU
JP32 patents
⚠️ This page may combine multiple inventors who share the name “YUASA TSUTOMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON CATALYTIC CHEM IND
27 patentsUS6187841B1Feb 13, 2001
Cement composition using the dispersant of (meth)acrylic esters, (metha)acrylic acids polymers
NIPPON CATALYTIC CHEM IND109 citations98
US6166112ADec 26, 2000
Cement admixture and cement composition
NIPPON CATALYTIC CHEM IND72 citations96
US5925184AJul 20, 1999
Cement composition
NIPPON CATALYTIC CHEM IND79 citations96
US5912284AJun 15, 1999
Cement additive, its production process and use
NIPPON CATALYTIC CHEM IND108 citations96
US6294015B1Sep 25, 2001
Cement admixture and cement composition
NIPPON CATALYTIC CHEM IND69 citations95
US6165262ADec 26, 2000
Cement additive and cement composition using same
NIPPON CATALYTIC CHEM IND58 citations95
US6388038B1May 14, 2002
Method for producing polycarboxylic acid for cement dispersant and cement composition
NIPPON CATALYTIC CHEM IND58 citations94
US6174980B1Jan 16, 2001
Cement dispersant, method for producing polycarboxylic acid for cement dispersant and cement composition
NIPPON CATALYTIC CHEM IND50 citations94
US6265495B1Jul 24, 2001
Method for production of esterified product
NIPPON CATALYTIC CHEM IND47 citations93
US6919388B2Jul 19, 2005
Cement admixture and cement composition
NIPPON CATALYTIC CHEM IND23 citations92
US6864337B2Mar 8, 2005
Polycarboxylic acid copolymer, production method and use thereof
NIPPON CATALYTIC CHEM IND35 citations92
US6545083B1Apr 8, 2003
Cement additive
NIPPON CATALYTIC CHEM IND24 citations92
US6486260B1Nov 26, 2002
Cement additive, cement composition and polycarboxylic acid polymer
NIPPON CATALYTIC CHEM IND42 citations92
US6258162B1Jul 10, 2001
Cement composition
NIPPON CATALYTIC CHEM IND28 citations92
US6087418AJul 11, 2000
Cement admixture and cement composition
NIPPON CATALYTIC CHEM IND24 citations92
US6048916AApr 11, 2000
Method for dispersion of cement
NIPPON CATALYTIC CHEM IND20 citations92
US7049462B2May 23, 2006
Production process for product of dehydration reaction and apparatus used for the production
NIPPON CATALYTIC CHEM IND41 citations89
US7662884B2Feb 16, 2010
Cement admixture and production method thereof
NIPPON CATALYTIC CHEM IND9 citations83
US7405264B2Jul 29, 2008
Polycarboxylic acid copolymer, production method and use thereof
NIPPON CATALYTIC CHEM IND13 citations83
US6946505B2Sep 20, 2005
Cement dispersant, its production process, and cement composition using the cement dispersant
NIPPON CATALYTIC CHEM IND8 citations74
US6362364B1Mar 26, 2002
Method for production of esterified product and apparatus therefor
NIPPON CATALYTIC CHEM IND13 citations74
US6900275B2May 31, 2005
(Meth) acrylic acid (salt) polymer and its production process
NIPPON CATALYTIC CHEM IND9 citations73
US7247662B2Jul 24, 2007
Cement dispersant, its production process, and cement composition using the cement dispersant
NIPPON CATALYTIC CHEM IND3 citations63
US6716896B2Apr 6, 2004
Method for production of esterified product and apparatus therefor
NIPPON CATALYTIC CHEM IND4 citations63
US7321006B2Jan 22, 2008
Admixture for cement
NIPPON CATALYTIC CHEM IND4 citations61
US8344085B2Jan 1, 2013
Polymer and cement admixture using the same
NIPPON CATALYTIC CHEM IND0 citations51
US7851576B2Dec 14, 2010
Polymer and cement admixture using the same
NIPPON CATALYTIC CHEM IND0 citations51
SAKAMOTO NOBORU
2 patentsUS8476341B2Jul 2, 2013
Multi-branched polyalkylene glycol polymer, method for producing the same, and admixture for cement
SAKAMOTO NOBORU3 citations61
US8188167B2May 29, 2012
Polyalkylene glycol chain-containing thiol polymer, thiol-modified monomer, mixture thereof, and admixture for cement
SAKAMOTO NOBORU0 citations50