Inventor · disambiguated record
Ryuzo Yoshioka
Also filed as: YOSHIOKA RYUZO
16 granted patents·113 citations·filing 1979–2021
91Inventor score
Files withTANABE SEIYAKU CO9NAHLS CORP CO LTD3MITSUBISHI TANBE PHARMA CORP1NIPPON CRUCIBLE CO1UBE INDUSTRIES1
Top patents by PatentIndex Score
16 records- 0189US4415504Ap-Hydroxyphenylglycine.α-phenylethanesulfonate, process for production thereof and utilization thereof in resolution of p-hydroxyphenylglycineTANABE SEIYAKU CO·Filed 1982·Granted Nov 15, 1983·26 cites·32 claims
- 0283US4401820AProcess for racemizing optically active α-amino acids or a salt thereofTANABE SEIYAKU CO·Filed 1982·Granted Aug 30, 1983·29 cites·11 claims
- 0381US4217335AProcess for producing β-silicon carbide fine powderNIPPON CRUCIBLE CO·Filed 1979·Granted Aug 12, 1980·23 cites·7 claims
- 0475US6307052B1Acid-addition salts of optically active piperidine compound and process for producing the sameUBE INDUSTRIES·Filed 1997·Granted Oct 23, 2001·16 cites·2 claims
- 0569US12312371B2Optically-active 2-amino-phosphonoalkane acid, optically-active 2-amino-phosphonoalkane acid salt, and hydrates of theseNAHLS CORP CO LTD·Filed 2021·Granted May 27, 2025·0 cites·2 claims
- 0663US4434107AProcess for preparing an optically active p-hydroxyphenylglycine or a salt thereofTANABE SEIYAKU CO·Filed 1982·Granted Feb 28, 1984·7 cites·13 claims
- 0762US4519955AMethod for optical resolution of DL-α-amino acid or (±)-α-phenylethanesulfonic acidTANABE SEIYAKU CO·Filed 1984·Granted May 28, 1985·10 cites·35 claims
- 0855US11220521B2Optically-active 2-amino-phosphonoalkane acid, optically-active 2-amino-phosphonoalkane acid salt, and hydrates of theseNAHLS CORP CO LTD·Filed 2018·Granted Jan 11, 2022·0 cites·2 claims
- 0941US10774098B2Nahlsgen optical resolution methodUNIV KYOTO·Filed 2017·Granted Sep 15, 2020·0 cites·12 claims
- 1037US5847122AProcess for preparing 1,5-benzothiazepine derivativeTANABE SEIYAKU CO·Filed 1997·Granted Dec 8, 1998·1 cites·22 claims
- 1136US11090318B2Wound healing promoterNAHLS CORP CO LTD·Filed 2018·Granted Aug 17, 2021·0 cites·3 claims
- 1234US7476758B2Process for preparing a phenylalanine derivative and intermediates thereofMITSUBISHI TANBE PHARMA CORP·Filed 2003·Granted Jan 13, 2009·0 cites·13 claims
- 1333US5495012AProcess for preparing optically active 4-mercapto-2-pyrrolidone derivative and intermediate thereforTANABE SEIYAKU CO·Filed 1995·Granted Feb 27, 1996·1 cites·5 claims
- 1432US5424446AProcess for preparing optically active 4-mercapto-2-pyrrolidone derivative and intermediate thereforTANABE SEIYAKU CO·Filed 1993·Granted Jun 13, 1995·0 cites·7 claims
- 1531US5929068AOptically active benzothiazepine compounds and process for preparing the sameTANABE SEIYAKU CO·Filed 1996·Granted Jul 27, 1999·0 cites·18 claims
- 1630US5705638AProcess for preparing optically active 3-hydroxy-1,5-benzothiazepine derivative and intermediate thereforTANABE SEIYAKU CO·Filed 1996·Granted Jan 6, 1998·0 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →