Inventor
Ryuzo Yoshioka
Inventor
Kaizuka, JP
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds22%
C07BGeneral methods of organic chemistry19%
C07DHeterocyclic compounds19%
Y02PClimate change mitigation technologies in the production or processing of goods13%
A61KPreparations for medical, dental or toiletry purposes9%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations6%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium6%
C01BNon-metallic elements3%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds3%
PatentTitleYear
11,090,318Wound healing promoter202110,774,098Nahlsgen optical resolution method20207,476,758'Process for preparing a phenylalanine derivative and intermediates thereof'20096,307,052'Acid-addition salts of optically active piperidine compound and process for producing the same'20015,929,068'Optically active benzothiazepine compounds and process for preparing the same'19995,847,122'Process for preparing 1,5-benzothiazepine derivative'19985,705,638'Process for preparing optically active 3-hydroxy-1,5-benzothiazepine derivative and intermediate therefor'19985,495,012'Process for preparing optically active 4-mercapto-2-pyrrolidone derivative and intermediate therefor'19965,424,446'Process for preparing optically active 4-mercapto-2-pyrrolidone derivative and intermediate therefor'19954,519,955'Method for optical resolution of DL-.alpha.-amino acid or (.+-.)-.alpha.-phenylethanesulfonic acid'19854,434,107'Process for preparing an optically active p-hydroxyphenylglycine or a salt thereof'19844,415,504'p-Hydroxyphenylglycine..alpha.-phenylethanesulfonate, process for production thereof and utilization thereof in resolution of p-hydroxyphenylglycine'19834,401,820'Process for racemizing optically active .alpha.-amino acids or a salt thereof'19834,217,335'Process for producing .beta.-silicon carbide fine powder'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980Patents assigned to NIPPON CRUCIBLE CO (1)· patent assignee history
1983–2001Patents assigned to TANABE SEIYAKU CO (10)· patent assignee history
1983–1985Based in Kaizuka, JP· patent location history
1996–2001Based in Osaka, JP· patent location history
1998–1999Based in Mishima-shi, JP· patent location history
2009Patents assigned to MITSUBISHI TANBE PHARMA CORP (1)· patent assignee history
2009–2020Based in Takatsuki, JP· patent location history
2020–2021Patents assigned to NAHLS CORP CO LTD (2)· patent assignee history
2021Patents assigned to NAHIS CORP CO LTD (1)· patent assignee history
2021Based in Osaka-shi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TANABE SEIYAKU CO | 10 | 1983–2001 |
| NAHLS CORP CO LTD | 2 | 2020–2021 |
| MITSUBISHI TANBE PHARMA CORP | 1 | 2009 |
| NAHIS CORP CO LTD | 1 | 2021 |
| NIPPON CRUCIBLE CO | 1 | 1980 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kaizuka, JP | 4 | 1983–1985 |
| Mishima-shi, JP | 3 | 1998–1999 |
| Takatsuki, JP | 2 | 2009–2020 |
| Osaka, JP | 2 | 1996–2001 |
| Osaka-shi, JP | 1 | 2021 |