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Inventor

Takashi Kamiya

Inventor
Suita, JP

Overview

70→
Patents
1976–2001
Patent span
Chemistry
Primary field (CPC C)

Patents· 70 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Dprimary
C07DHeterocyclic compounds57%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations15%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium8%
C07CAcyclic or carbocyclic compounds6%
Y02PClimate change mitigation technologies in the production or processing of goods6%
A61KPreparations for medical, dental or toiletry purposes5%
C07HSugars2%
C07KPeptides1%
PatentTitleYear
6,201,121'Process for the preparation of 3-dihalobenzyl-2,4-quinazolinedione derivatives'20015,453,497'Process for producing N.sup.4 -acyl-5\'-deoxy-5-fluorocytidine compounds'19955,373,000'7Beta-(thiadiazolyl)-2-iminoacetamido-3cephem compounds'19945,128,465'Process for the preparation of cephem derivatives and intermediates therefor'19925,089,491'3-propenylcephem derivative'19925,010,188'Cephem derivatives'19915,008,260'Cephem derivatives'19915,006,649'3-propenylcephem derivative'19914,931,555'Disulfide substituted oxazetidine derivatives'19904,929,612'Thiadiazolylacetamide cephem derivatives'19904,921,850'3-propenylcephem derivative'19904,782,158'Thiazolylacetic acid derivative'19884,748,171'Cephem compounds having at the 3-position a (1,4-methylene-1-piperidinio)methyl group or a (1-quinuclidinio)methyl group'19884,698,336'3-(pyrrolidinio)methyl-3-cephem derivatives'19874,599,426'Amino thiazole compounds'19864,596,869'Pyridinyl and pyrimidinyl derivatives'19864,576,753'Azetidinone compounds and processes for preparation thereof'19864,560,765'3,7-Disubstituted-3-cephem-4-carboxylic acid compounds and processes for preparation thereof'19854,546,176'7-Carboxymethoxyphenylacetamido-3-cephem derivatives and antibacterial preparations containing the same'19854,513,145'2-Methylchromone derivatives and process for their preparation'19854,506,076'Amino or amido-thiazolyl, substituted oxyimino disubstituted acetic acid'19854,472,300'Azetidinone derivatives and process for preparation thereof'19844,472,309'2-Azetidinone compounds and processes for preparation thereof'19844,440,766'3,7-Disubstituted-3-cephem-4-carboxylic acid compounds'19844,435,321'Azetidinone 4-disulfides'19844,410,458'Process for providing an oxidized penam'19834,407,798'Cephem compounds'19834,395,411'Pyrimidinyl cephalosporanic acid derivatives and pharmaceutical compositions'19834,385,176'Process for preparation of 2-lower alkyl-2 or 3-cephem-4-carboxylic acid derivatives'19834,350,692'3,7-Disubstituted-3-cephem-4-carboxylic acids'19824,324,892'7-(N-Substituted-2-phenylglycinamido)-3-subs tituted-3-cephem-4-carboxylic acid compounds'19824,308,380'2-Lower alkyl-2 or 3-cephem-4-carboxylic acid derivatives'19814,305,937'2-Lower alkyl-7-substituted-2 or 3-cephem-4-carboxylic acid compounds and antibacterial pharmaceutical compositions containing them'19814,304,718'2-Azetidinone compounds and processes for preparation thereof'19814,303,655'3,7-Disubstituted-3-cephem-4-carboxylic acid compounds'19814,299,829'2-Lower alkyl-7-substituted-2 or 3-cephem 4-carboxylic acid compounds'1981RE030752'Oxime carbonates'19814,288,435'3,7-Disubstituted-3-cephem-4-carboxylic acid compounds and pharmaceutical antibacterial compositions containing them'19814,267,176'Amino or acylamino-substituted pyrimidinyl cephalosporanic acid derivatives and pharmaceutical compositions thereof'19814,267,340'Disulfide substituted oxazetidine derivatives'19814,264,498'Process for the preparation of 1,3-disubstituted-2-azetidinones from triazines'19814,237,305'Substituted phenylacetic acid compounds and process for preparation thereof'19804,225,707'2-Lower alkyl-7-substituted-2 or 3-cephem-4-carboxylic acid compounds'19804,218,374'Penam derivatives'19804,215,043'Bicyclomycin derivatives'19804,214,094'Substituted-phenyl substituted-alkyl ethers and the preparation thereof'19804,207,234'4-Unsubstituted azetidinone derivatives and process for preparation thereof'19804,206,156'Hydroxyaminohydrocarbonphosphonic acids'19804,205,166'7-Substituted-3-aminoalkyl-, acylaminoalkyl-, or hydroxyalkyl-substituted heterocyclic thiomethyl-3-cephem-4-carboxylic acid derivatives and preparation thereof'19804,203,897'Penam derivatives'19804,191,762'2-Lower alkyl-7-substituted amino-2 or 3-cephem-4-carboxylic acid compounds'19804,182,758'Hydroxyaminohydrocarbonphosphonic acid derivatives and use thereof as an antibiotic'19804,181,800'2-Azetidinone compounds and processes for preparation thereof'19804,172,198'7-(N-substituted-2-phenylglycinamido)-3-sub stituted-3-cephem-4-carboxylic acid compounds and preparation thereof'19794,164,497'2-Substituted penam derivatives'19794,152,433'2-Lower alkyl-7-substituted-2 or 3-cephem-4-carboxylic acid compounds and pharmaceutical compositions'19794,113,940'7-Amino 2-lower alkyl-2 or 3-cephem-4-carboxylic acid derivatives and processes for preparation thereof'19784,110,338'Product and preparation of 1H-tetrazole-5-thiol derivatives'19784,091,210'Preparation of 3-alkyl-3-cephem-4-carboxylic acid compounds from dithio isopropenyl azetidine carboxylic compounds'19784,083,848'Process for protecting amino and/or imino groups'19784,084,049'Cepham derivatives'19784,077,965'Aminoalkyl- or hydroxyalkyl-substituted thiadiazole derivatives'19784,071,527'Certain benzothiazole compounds'19784,056,521'Penam and cepham derivatives and preparation thereof'19774,036,847'Halogenated penam derivatives and the preparation thereof'19774,010,178'Carbonic acid esters, and the preparation thereof and their use'19774,009,159'Halogenated penam derivatives and the preparation thereof'19773,993,646'Process for the ring expansion of penicillins to cephalosporin compounds'19763,984,397'2,3-Lower alkylenepenam-3-carboxylic acid derivatives and processes for the preparation thereof'19763,954,732'Penam and cepham derivatives and preparation thereof'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–2001Patents assigned to FUJISAWA PHARMACEUTICAL CO (56)· patent assignee history
1976–2001Based in Suita, JP· patent location history
1985–1994Patents assigned to EISAI CO LTD (12)· patent assignee history
1985–1994Based in Ibaraki, JP· patent location history
1995–2001Patents assigned to FUJI CHEM IND CO LTD (2)· patent assignee history
1995Patents assigned to HOFFMANN LA ROCHE (1)· patent assignee history
1995Based in Osaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJISAWA PHARMACEUTICAL CO561976–2001
EISAI CO LTD121985–1994
FUJI CHEM IND CO LTD21995–2001
HOFFMANN LA ROCHE11995
Locations
LocationPatentsSpan
Suita, JP571976–2001
Ibaraki, JP121985–1994
Osaka, JP11995