Inventor
Kazuya Okamoto
Inventor
Osaka, JP
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Dprimary
C07DHeterocyclic compounds28%
A61KPreparations for medical, dental or toiletry purposes21%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations21%
C07BGeneral methods of organic chemistry19%
C07CAcyclic or carbocyclic compounds2%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds2%
G01KMeasuring temperature2%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure2%
G01NInvestigating or analysing materials by determining their chemical or physical properties2%
PatentTitleYear
11,029,269Monitoring device202110,125,147Crystalline methyl (4R,12aS)-7-(benzyloxy)-4-methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-9-carboxylate201810,125,146Crystalline methyl (4R,12aS)-7-(benzyloxy)-4-methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2H-pyrido[1',2':4,5]pyrazino[2,1-b][1,3]oxazine-9-carboxylate201810,000,508Crystalline dimethyl 3-(benzyloxy)-1-(2,2-dimethoxyethyl)-4-oxo-1,4-dihydropyridine-2,5-dicarboxylate20189,969,750Method of producing (3S,11aR)-6,8-dihalo-3-methyl-2,3,11,11a-tetrahydrooxazolo[3,2-a]pyrido[1,2-d]pyrazine-5,7-diones20189,951,051Process for producing alkynylketone derivative20189,802,959'Method of producing (4R,12aS)-7,9-dihalo-4-methyl-3,4,12,12a-tetrahydro-2H-pyrido[1′,2′:4,5]pyrazino[2,1-b][1,3]oxazine-6,8-diones'20179,650,394'Methods of producing substituted (3S,11aR)-6-hydroxy-3-methyl-5,7-dioxo-2,3,5,7,11,11a-Hexahydrooxazolo[3,2-a]pyrido[1,2-d]pyrazine-8-carboxamides'20179,505,783'Method of producing pyrone and pyridone derivatives'20169,321,789'Methods of producing substituted (4R,12AS)-7-hydroxy-4-methyl-6,8-dioxo-3,4,6,8,12,12A-hexahydro-2H-pyrido[1′,2′:4,5]pyrazino[2,1-B][1,3]oxazine-9-carboxamides'20169,260,453'Method for producing pyrone and pyridone derivatives'20168,865,907'Method of producing pyrone and pyridone derivatives'20147,495,099'High-molecular weight derivatives of camptothecins'20096,080,396'Anthracycline compound derivative and pharmaceutical preparation containing the same'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2009Patents assigned to NIPPON KAYAKU KK (2)· patent assignee history
2000Patents assigned to JAPAN SCIENCE & TECH CORP (1)· patent assignee history
2000Based in Tokyo, JP· patent location history
2009Based in Kita-adachi-gun, JP· patent location history
2014–2018Patents assigned to SHIONOGI & CO (11)· patent assignee history
2014Patents assigned to AKIYAMA TOSHIYUKI (1)· patent assignee history
2014–2018Based in Osaka, JP· patent location history
2021Patents assigned to DENSO CORP (1)· patent assignee history
2021Based in Kariya, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SHIONOGI & CO | 11 | 2014–2018 |
| NIPPON KAYAKU KK | 2 | 2000–2009 |
| AKIYAMA TOSHIYUKI | 1 | 2014 |
| DENSO CORP | 1 | 2021 |
| JAPAN SCIENCE & TECH CORP | 1 | 2000 |
Locations
| Location | Patents | Span |
|---|---|---|
| Osaka, JP | 11 | 2014–2018 |
| Kariya, JP | 1 | 2021 |
| Kita-adachi-gun, JP | 1 | 2009 |
| Tokyo, JP | 1 | 2000 |