Inventor
MURAYAMA TOSHIYUKI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “MURAYAMA TOSHIYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TAKASAGO PERFUMERY CO LTD
11 patentsUS5712388AJan 27, 1998
Method of preparing a derivative of optically active azetidin-2-one
TAKASAGO PERFUMERY CO LTD42 citations92
US5204461AApr 20, 1993
Process for preparing (1'r,3s)-3-(1'-hydroxyethyl)-azetidin-2-one and derivatives thereof
TAKASAGO PERFUMERY CO LTD43 citations92
US6340751B1Jan 22, 2002
Process for the preparation of 4-substituted azetidinone derivatives
TAKASAGO PERFUMERY CO LTD11 citations73
US5756863AMay 26, 1998
Process for preparing optically active cyclohexanol derivatives
TAKASAGO PERFUMERY CO LTD7 citations73
US5574152ANov 12, 1996
4-(1,1-dialkoxycarbonylalkyl) azetidin-2-one derivative and process for producing 4-(1-carboxyalkyl) azetidin-2-one derivative using the same
TAKASAGO PERFUMERY CO LTD6 citations73
US5371214ADec 6, 1994
4-(1,1-dialkoxycarbonylalkyl)azetidin-2-one derivative and process for producing 4-(1-carboxyalkyl)azetidin-2-one derivative using the same
TAKASAGO PERFUMERY CO LTD3 citations62
US5523458AJun 4, 1996
Process for producing optically active diaminohexanone derivative
TAKASAGO PERFUMERY CO LTD3 citations61
US6365755B1Apr 2, 2002
Ammonium 3,5,6-trihydroxyhexanoate derivatives and preparation process thereof
TAKASAGO PERFUMERY CO LTD2 citations58
US5777103AJul 7, 1998
Process for producing cyclohexylazetidinone
TAKASAGO PERFUMERY CO LTD0 citations51
US5631397AMay 20, 1997
Process for producing optically active diaminohexanone derivative
TAKASAGO PERFUMERY CO LTD1 citations51
US7601842B2Oct 13, 2009
Method for producing an optically active tetrahydroquinoline
TAKASAGO PERFUMERY CO LTD0 citations49