Inventor
NAKAMATSU TOSHIO
JP15 patents
⚠️ This page may combine multiple inventors who share the name “NAKAMATSU TOSHIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO CHEMICAL CO
13 patentsUS5367075ANov 22, 1994
Anthrapyridone compounds, their production process and their use
SUMITOMO CHEMICAL CO31 citations90
US4902798AFeb 20, 1990
Anthrapyridone compounds
SUMITOMO CHEMICAL CO35 citations90
US6861549B2Mar 1, 2005
Production method of 4′-bromomethyl-2-cyanobiphenyl
SUMITOMO CHEMICAL CO6 citations73
US4711641ADec 8, 1987
Reactive dye composition: mixture of reactive copper phthalocyanine dyes: dichloro-triazinyl dye and vinyl sulphonyl type dye
SUMITOMO CHEMICAL CO10 citations73
US4667022AMay 19, 1987
Reactive dye having both monochlorotriozinyl and vinylsulfone type reactive groups
SUMITOMO CHEMICAL CO11 citations73
US4396549AAug 2, 1983
Copper phthalocyanine blue reactive dye
SUMITOMO CHEMICAL CO6 citations73
US4626257ADec 2, 1986
Method for dyeing polyester fiber materials: disperse dye combinations with compensated color fading
SUMITOMO CHEMICAL CO12 citations71
US5599971AFeb 4, 1997
Method for producing 1,4-dihydroxy-2-naphthoic acid
SUMITOMO CHEMICAL CO3 citations62
US5304677AApr 19, 1994
Method for producing 2,6-dihydroxybenzoic acid
SUMITOMO CHEMICAL CO4 citations61
US5276198AJan 4, 1994
Process for producing 2-methyl-1,3-cyclohexanedione and 2-methylresorcinol
SUMITOMO CHEMICAL CO3 citations61
US4690686ASep 1, 1987
Light-fast yellow disperse dye composition for polyester
SUMITOMO CHEMICAL CO2 citations61
US5136045AAug 4, 1992
Pyrazole containing methine compounds
SUMITOMO CHEMICAL CO3 citations60
US5183892AFeb 2, 1993
Anthrapyridone compounds
SUMITOMO CHEMICAL CO3 citations57