Inventor
UMEMURA TAKEAKI
8 patents
Patents
8 patentsUS4752417AJun 21, 1988
Method for optical resolution of phenylacetic acid derivative
SUMITOMO CHEMICAL CO11 citations70
US4012428AMar 15, 1977
Method for preparing 3-methyl-2-(4-halogenophenyl)-butyronitrile
SUMITOMO CHEMICAL CO7 citations70
US4571436AFeb 18, 1986
Process for producing optically active cyclopentenolones
SUMITOMO CHEMICAL CO4 citations60
US4552703ANov 12, 1985
Production of optically active cyclopentenolones
SUMITOMO CHEMICAL CO2 citations60
US4001334AJan 4, 1977
Racemization of optically active allethrolone
SUMITOMO CHEMICAL CO2 citations60
US3981919ASep 21, 1976
Racemization of optically active allethrolone
SUMITOMO CHEMICAL CO2 citations58
US4293702AOct 6, 1981
Method for preparing 4-substituted-N-methylbenzothiazolone derivatives
SUMITOMO CHEMICAL CO6 citations57
US4144264AMar 13, 1979
Process for producing a 3-methyl-2-(4-halophenyl)butyronitrile
SUMITOMO CHEMICAL CO0 citations48