Inventor
YAMAZAKI SHIGEYA
JP8 patents
⚠️ This page may combine multiple inventors who share the name “YAMAZAKI SHIGEYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMIKA FINE CHEMICALS CO LTD
7 patentsUS5948914ASep 7, 1999
Piperidine derivative and process for preparing the same
SUMIKA FINE CHEMICALS CO LTD20 citations90
US6316628B1Nov 13, 2001
L-tartrate of trans-(-)-4-(4-fluorophenyl)-3-hydroxymethylpiperidine compound and process for preparing the same
SUMIKA FINE CHEMICALS CO LTD3 citations61
US6815548B2Nov 9, 2004
Process for preparing a piperidine derivative
SUMIKA FINE CHEMICALS CO LTD2 citations60
US6610851B1Aug 26, 2003
Process for preparing a piperidine derivative
SUMIKA FINE CHEMICALS CO LTD2 citations60
US6476227B1Nov 5, 2002
Piperidine derivative and process for preparing the same
SUMIKA FINE CHEMICALS CO LTD3 citations60
US6433168B1Aug 13, 2002
Highly pure phenothiazine compound, production method thereof, production method of intermediate therefor, and hydrate and novel crystal as starting materials for the intermediate
SUMIKA FINE CHEMICALS CO LTD0 citations51
US6441187B1Aug 27, 2002
Method for producing camphorsultam
SUMIKA FINE CHEMICALS CO LTD0 citations49