Inventor
SUMIDA YASUTAKA
JP11 patents
⚠️ This page may combine multiple inventors who share the name “SUMIDA YASUTAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON CATALYTIC CHEM IND
9 patentsUS6103686AAug 15, 2000
Chelating composition
NIPPON CATALYTIC CHEM IND27 citations86
US6743748B2Jun 1, 2004
Catalyst for producing epoxy compounds and method of producing epoxy compounds using the same
NIPPON CATALYTIC CHEM IND18 citations80
US6063302AMay 16, 2000
Method for handling iminocarboxylic acid salt
NIPPON CATALYTIC CHEM IND7 citations72
US6294693B1Sep 25, 2001
Production process for ether carboxylate salt
NIPPON CATALYTIC CHEM IND13 citations70
US6506932B2Jan 14, 2003
Method for production of oxygen-containing aromatic compound
NIPPON CATALYTIC CHEM IND3 citations61
US7425519B2Sep 16, 2008
Liquid phase oxygenation reaction using tungsten species
NIPPON CATALYTIC CHEM IND2 citations58
US5801277ASep 1, 1998
Solid catalyst for etherification reaction and production process for ether compound using this catalyst
NIPPON CATALYTIC CHEM IND6 citations58
US6504054B1Jan 7, 2003
Amino acid derivative and producing method thereof
NIPPON CATALYTIC CHEM IND3 citations56
US7319165B2Jan 15, 2008
Aminopolycarboxylic acid aqueous solution composition and stabilization method of aminopolycarboxlic acid
NIPPON CATALYTIC CHEM IND0 citations38