Inventor
SAKITO YOJI
CA25 patents
Patents
25 patentsUS4767882AAug 30, 1988
Tetrahydronaphthalene derivatives and their production
SUMITOMO CHEMICAL CO15 citations74
US4424389AJan 3, 1984
Synthesis of 6-hydroxychroman-2-methanol derivatives
SUMITOMO CHEMICAL CO9 citations73
US4584387AApr 22, 1986
Acyl and ester derivatives of 1,3-diazabicyclo[3,3,0]octane
SUMITOMO CHEMICAL CO6 citations72
US5200561AApr 6, 1993
Process for producing optically active amines
SUMITOMO CHEMICAL CO12 citations71
US5616769AApr 1, 1997
Method for purifying O,S-dimethyl N-acetylphosphoramidothioate
SUMITOMO CHEMICAL CO6 citations68
US4820864AApr 11, 1989
Method for racemization of optically active chrysanthemic acid or its ester
SUMITOMO CHEMICAL CO2 citations63
US4788323ANov 29, 1988
Method for racemization of optically active chrysanthemic acid or its ester
SUMITOMO CHEMICAL CO5 citations63
US4487956ADec 11, 1984
Menthyl 2,2-dimethylcyclopropanecarboxylate and resolution of the same
SUMITOMO CHEMICAL CO5 citations63
US5120853AJun 9, 1992
Process for producing optically active compounds
SUMITOMO CHEMICAL CO5 citations62
US5011989AApr 30, 1991
Optically active hydroxybenzylamine
SUMITOMO CHEMICAL CO2 citations62
US4383122AMay 10, 1983
Process for preparing α-hydroxyaldehyde
SUMITOMO CHEMICAL CO2 citations61
US4337346AJun 29, 1982
α-Hydroxyaldehyde and a process for preparing the same
SUMITOMO CHEMICAL CO3 citations61
US5231227AJul 27, 1993
Optically active hydroxybenzylamine derivative and process for producing said compound
SUMITOMO CHEMICAL CO3 citations56
US5684174ANov 4, 1997
Method for purifying O, S-dimethyl N-acetylphosphoramidothioate
SUMITOMO CHEMICAL CO2 citations54
US5698742ADec 16, 1997
Method for producing an optically active azolyl-α, β-unsaturated alcohol
SUMITOMO CHEMICAL CO0 citations52
US5145998ASep 8, 1992
Method for producing optically active amines
SUMITOMO CHEMICAL CO1 citations52
US5144071ASep 1, 1992
Method for producing an optically active azolyl-α,β-unsaturated alcohol
SUMITOMO CHEMICAL CO0 citations52
US4954651ASep 4, 1990
Process for preparing trans-2,2-dimethyl-3-(2,2-dihalovinyl)-cyclopropane carboxylic acid halide
SUMITOMO CHEMICAL CO1 citations52
US4908455AMar 13, 1990
Method for producing an optically active azolyl-α β-unsaturated alcohol
SUMITOMO CHEMICAL CO1 citations52
US4898655AFeb 6, 1990
Method for racemization of optically active chrysanthemic acid or its derivatives
SUMITOMO CHEMICAL CO1 citations52
US4812264AMar 14, 1989
Method for racemization of optically active chrysanthemic acid derivatives
SUMITOMO CHEMICAL CO1 citations52
US4328378AMay 4, 1982
2,6-Dimethyl-6-heptene-1,2-diol
SUMITOMO CHEMICAL CO0 citations51
US4276217AJun 30, 1981
Method for producing 1,5-dimethyl-6,8-dioxabicyclo[3.2.1]octane
SUMITOMO CHEMICAL CO1 citations51
US4948914AAug 14, 1990
Process for preparing trans-2,2-dimethyl-3-(2,2-dihalovinyl)cyclopropane carboxylic acid esters
SUMITOMO CHEMICAL CO0 citations50
US4616092AOct 7, 1986
β-formyl-β-hydroxy ester
SUMITOMO CHEMICAL CO1 citations50