Inventor
TAKAYA HIDEMASA
JP20 patents
Patents
20 patentsUS5530150AJun 25, 1996
Phosphine compound, complex containing the phosphine compound as ligand, process for producing optically active aldehyde using the phosphine compound or the complex, and 4-[(R)-1'-formylethyl]azetidin-2-one derivatives
TAKASAGO PERFUMERY CO LTD23 citations92
US4994590AFeb 19, 1991
Ruthenium-phoshine complex
TAKASAGO PERFUMERY CO LTD27 citations92
US4962230AOct 9, 1990
Process for producing optically active carboxylic acid
TAKASAGO PERFUMERY CO LTD25 citations92
US4739084AApr 19, 1988
Ruthenium-phosphine complex
TAKASAGO PERFUMERY CO LTD45 citations92
US5631345AMay 20, 1997
Process for producing optically active polyketone
TAKASAGO PERFUMERY CO LTD25 citations91
US5021593AJun 4, 1991
Ruthenium-optically active phosphine complex
TAKASAGO PERFUMERY CO LTD18 citations82
US4916252AApr 10, 1990
Process for preparing optically active alcohol
TAKASAGO PERFUMERY CO LTD21 citations82
US4851537AJul 25, 1989
Process for preparing N-acyltetrahydroisoquinoline
TAKASAGO PERFUMERY CO LTD22 citations82
US4739085AApr 19, 1988
Ruthenium-phosphine complex
TAKASAGO PERFUMERY CO LTD22 citations80
US5066815ANov 19, 1991
Process for preparing optically active alcohol
TAKASAGO PERFUMERY CO LTD20 citations79
US5306834AApr 26, 1994
Process for preparing optically active 4-methyl-2-oxetanone
TAKASAGO PERFUMERY CO LTD8 citations74
US4933482AJun 12, 1990
Process for preparing optically active alcohol
TAKASAGO PERFUMERY CO LTD18 citations74
US5563295AOct 8, 1996
Process for producing optically active carboxylic acid
TAKASAGO PERFUMERY CO LTD8 citations73
US5159093AOct 27, 1992
Iridium-optically active phosphine complex and process for producing optically active alcohols using the same
TAKASAGO PERFUMERY CO LTD12 citations73
US4962242AOct 9, 1990
Process for producing optically active alcohols
TAKASAGO PERFUMERY CO LTD17 citations73
US5648548AJul 15, 1997
Optically active asymmetric diphosphine and process for producing optically active substance in its presence
TAKASAGO PERFUMERY CO LTD13 citations72
US5412109AMay 2, 1995
Process for preparing optically active 4-methyl-2-oxetanone
TAKASAGO PERFUMERY CO LTD10 citations72
US5087728AFeb 11, 1992
Process for producing carboxylic acids and esters thereof
TAKASAGO PERFUMERY CO LTD4 citations63
US5556998ASep 17, 1996
Transition metal complex, process for the preparation of the same, and asymmetric hydrogenation catalyst comprising the same
TAKASAGO PERFUMERY CO LTD1 citations52
US5210332AMay 11, 1993
Iridium-optically active phosphine complex and process for producing optically active alcohols using the same
TAKASAGO PERFUMERY CO LTD1 citations51