Inventor
YOSHIOKA RYUZO
JP16 patents
⚠️ This page may combine multiple inventors who share the name “YOSHIOKA RYUZO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TANABE SEIYAKU CO
9 patentsUS4401820AAug 30, 1983
Process for racemizing optically active α-amino acids or a salt thereof
TANABE SEIYAKU CO29 citations91
US4415504ANov 15, 1983
p-Hydroxyphenylglycine.α-phenylethanesulfonate, process for production thereof and utilization thereof in resolution of p-hydroxyphenylglycine
TANABE SEIYAKU CO26 citations81
US4519955AMay 28, 1985
Method for optical resolution of DL-α-amino acid or (±)-α-phenylethanesulfonic acid
TANABE SEIYAKU CO10 citations72
US4434107AFeb 28, 1984
Process for preparing an optically active p-hydroxyphenylglycine or a salt thereof
TANABE SEIYAKU CO7 citations72
US5495012AFeb 27, 1996
Process for preparing optically active 4-mercapto-2-pyrrolidone derivative and intermediate therefor
TANABE SEIYAKU CO1 citations52
US5424446AJun 13, 1995
Process for preparing optically active 4-mercapto-2-pyrrolidone derivative and intermediate therefor
TANABE SEIYAKU CO0 citations52
US5929068AJul 27, 1999
Optically active benzothiazepine compounds and process for preparing the same
TANABE SEIYAKU CO0 citations51
US5847122ADec 8, 1998
Process for preparing 1,5-benzothiazepine derivative
TANABE SEIYAKU CO1 citations51
US5705638AJan 6, 1998
Process for preparing optically active 3-hydroxy-1,5-benzothiazepine derivative and intermediate therefor
TANABE SEIYAKU CO0 citations51
NAHLS CORP CO LTD
3 patentsUS12312371B2May 27, 2025
Optically-active 2-amino-phosphonoalkane acid, optically-active 2-amino-phosphonoalkane acid salt, and hydrates of these
NAHLS CORP CO LTD0 citations54
US11220521B2Jan 11, 2022
Optically-active 2-amino-phosphonoalkane acid, optically-active 2-amino-phosphonoalkane acid salt, and hydrates of these
NAHLS CORP CO LTD0 citations54
US11090318B2Aug 17, 2021
Wound healing promoter
NAHLS CORP CO LTD0 citations54