Inventor · disambiguated record
Takao Takaya
Also filed as: KOCHI HIROMU · MASUGI TAKASHI · SHIOKAWA YOUICHI · TAKAYA TAKAO
150 granted patents·2,402 citations·filing 1975–1996
99Inventor score
Top patents by PatentIndex Score
150 records- 0199US4166115ASyn 7-oxoimino substituted derivatives of cephalosporanic acidFUJISAWA PHARMACEUTICAL CO·Filed 1977·Granted Aug 28, 1979·69 cites·5 claims
- 0298US4649146AThiazole derivatives and pharmaceutical composition comprising the sameFUJISAWA PHARMACEUTICAL CO·Filed 1984·Granted Mar 10, 1987·54 cites·9 claims
- 0398US4559334A7-Substituted-3-vinyl-3-cephem compounds and processes for production of the sameFUJISAWA PHARMACEUTICAL CO·Filed 1983·Granted Dec 17, 1985·89 cites·20 claims
- 0498US4409214A7-Acylamino-3-vinylcephalosporanic acid derivatives and processes for the preparation thereofFUJISAWA PHARMACEUTICAL CO·Filed 1980·Granted Oct 11, 1983·84 cites·12 claims
- 0597US4822805APyridyl-imidazole compounds which have useful pharmaceutical activityFUJISAWA PHARMACEUTICAL CO·Filed 1987·Granted Apr 18, 1989·88 cites·9 claims
- 0697US4487767A7-[Amino or carboxy substituted oxyimino]-3-[amino or alkoxy substituted heterocyclic thiomethyl] cephalosporin derivativesFUJISAWA PHARMACEUTICAL CO·Filed 1982·Granted Dec 11, 1984·39 cites·16 claims
- 0797US4409215A7-Acylamino-3-substituted cephalosporanic acid derivatives and processes for the preparation thereofFUJISAWA PHARMACEUTICAL CO·Filed 1980·Granted Oct 11, 1983·35 cites·6 claims
- 0897US4366153ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1980·Granted Dec 28, 1982·43 cites·3 claims
- 0997US4349552A5-Fluorouracil derivatives, and their pharmaceutical compositionsFUJISAWA PHARMACEUTICAL CO·Filed 1980·Granted Sep 14, 1982·60 cites·39 claims
- 1097US4341775ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1979·Granted Jul 27, 1982·37 cites·3 claims
- 1196US4725600APyrimidine compounds having activity as a cardiotonic anti-hypertensive cerebrovascular vasodilator and anti-platelet aggregation agentFUJISAWA PHARMACEUTICAL CO·Filed 1985·Granted Feb 16, 1988·62 cites·18 claims
- 1296US4462999A7-Acylamino-3-substituted cephalosporanic acid derivatives and processes for the preparation thereofFUJISAWA PHARMACEUTICAL CO·Filed 1981·Granted Jul 31, 1984·30 cites·5 claims
- 1396US4220761A7-[Substituted oximinoacetamido]-3-[hydroxy alkyltetrazolo]cephalosporin derivativesFUJISAWA PHARMACEUTICAL CO·Filed 1978·Granted Sep 2, 1980·37 cites·8 claims
- 1495US4427677ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1981·Granted Jan 24, 1984·40 cites·6 claims
- 1595US4298529AAlkoxyimino dioxy butyric acid derivativesFUJISAWA PHARMACEUTICAL CO·Filed 1979·Granted Nov 3, 1981·26 cites·7 claims
- 1693US4452851ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1982·Granted Jun 5, 1984·30 cites·34 claims
- 1793US4423213A7-Acylamino-3-vinylcephalosporanic acid derivatives and processes for the preparation thereofFUJISAWA PHARMACEUTICAL CO·Filed 1981·Granted Dec 27, 1983·33 cites·9 claims
- 1893US4294960A7-[2-(2-Aminothiazol-4-yl)-2-cyclopentyloxyiminoacetamido]-3-cephem-4-carboxylic acid (synisomer)FUJISAWA PHARMACEUTICAL CO·Filed 1980·Granted Oct 13, 1981·17 cites·1 claims
- 1993US4207234A4-Unsubstituted azetidinone derivatives and process for preparation thereofFUJISAWA PHARMACEUTICAL CO·Filed 1977·Granted Jun 10, 1980·29 cites·4 claims
- 2092US4515788ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1982·Granted May 7, 1985·19 cites·6 claims
- 2191US4585860A7-acylamino-3-vinylcephalosporanic acid derivatives useful for treatment of infectious diseases in human beings and animalsFUJISAWA PHARMACEUTICAL CO·Filed 1983·Granted Apr 29, 1986·25 cites·13 claims
- 2291US4425341ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1978·Granted Jan 10, 1984·23 cites·51 claims
- 2391US4370326ACephem compounds and compositionFUJISAWA PHARMACEUTICAL CO·Filed 1978·Granted Jan 25, 1983·22 cites·13 claims
- 2491US4299829A2-Lower alkyl-7-substituted-2 or 3-cephem 4-carboxylic acid compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1978·Granted Nov 10, 1981·20 cites·14 claims
- 2591US4263291A3,7-Disubstituted-3-cephem-4-carboxylic acid compounds and processes for the preparation thereofFUJISAWA PHARMACEUTICAL CO·Filed 1979·Granted Apr 21, 1981·16 cites·7 claims
- 2690US4824851APyrimidones as cardiotonic, anti hypertensive, cerebrovascular vasodilator and anti-platelet agentsFUJISAWA PHARMACEUTICAL CO·Filed 1988·Granted Apr 25, 1989·23 cites·7 claims
- 2790US4735957AThiazole derivatives, processes for the preparation thereof and pharmaceutical composition comprising the sameFUJISAWA PHARMACEUTICAL CO·Filed 1986·Granted Apr 5, 1988·25 cites·13 claims
- 2890US4546101ANew cephem compounds useful for treating infectious diseases in human being and animals and processes for preparation thereofFUJISAWA PHARMACEUTICAL CO·Filed 1983·Granted Oct 8, 1985·19 cites·12 claims
- 2990US4438113A7-Acylaminocephalosporanic acid derivativesFUJISAWA PHARMACEUTICAL CO·Filed 1981·Granted Mar 20, 1984·17 cites·17 claims
- 3090US4284631A7-Substituted cephem compounds and pharmaceutical antibacterial compositions containing themFUJISAWA PHARMACEUTICAL CO·Filed 1979·Granted Aug 18, 1981·29 cites·27 claims
- 3190US4279818ASyn-isomers of 7-[2-alkoxyimino-2-(2-amino-thiazol-4-yl)acetamido]-3-[nitrobenzoyl-, or benzoyl-oxymethyl]-3-cephem-4-carboxylic acidFUJISAWA PHARMACEUTICAL CO·Filed 1978·Granted Jul 21, 1981·12 cites·4 claims
- 3290US4254260A3-Substituted-7-substituted alkanamido-3-cephem-4-carboxylic acid compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1976·Granted Mar 3, 1981·32 cites·8 claims
- 3389US4405617A3-(Propynyltetrazol)thiomethyl-3-cephemsFUJISAWA PHARMACEUTICAL CO·Filed 1981·Granted Sep 20, 1983·18 cites·12 claims
- 3489US4363807ACepham compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1979·Granted Dec 14, 1982·17 cites·9 claims
- 3589US4246405AMethod for preparation of β-lactam compoundFUJISAWA PHARMACEUTICAL CO·Filed 1978·Granted Jan 20, 1981·19 cites·11 claims
- 3688US5663163ACephem compounds and processes for preparation thereofFUJISAWA PHARMACEUTICAL CO·Filed 1996·Granted Sep 2, 1997·39 cites·3 claims
- 3788US4496562A7-Substituted-3-cephem-4-carboxylic acid estersFUJISAWA PHARMACEUTICAL CO·Filed 1982·Granted Jan 29, 1985·18 cites·6 claims
- 3888US4463003ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1982·Granted Jul 31, 1984·18 cites·5 claims
- 3988US4291031A3-Phosphonocephalosporanic acid derivatives, and pharmaceutical composition comprising the sameFUJISAWA PHARMACEUTICAL CO·Filed 1980·Granted Sep 22, 1981·18 cites·17 claims
- 4087US4705851AProcess for the preparation of 3-phosphoniummethyl-3-cephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1984·Granted Nov 10, 1987·21 cites·2 claims
- 4186US4871730ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1986·Granted Oct 3, 1989·18 cites·11 claims
- 4286US4584290ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1983·Granted Apr 22, 1986·26 cites·6 claims
- 4386US4499088ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1983·Granted Feb 12, 1985·27 cites·10 claims
- 4486US4487768ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1982·Granted Dec 11, 1984·16 cites·3 claims
- 4586US4477447A7-Acylaminocephalosporanic acid derivativesFUJISAWA PHARMACEUTICAL CO·Filed 1982·Granted Oct 16, 1984·17 cites·3 claims
- 4685US4935507ACrystalline 7-(2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetamido)-3-vinyl-3-cephem-4-carboxylic acid (syn isomer)FUJISAWA PHARMACEUTICAL CO·Filed 1988·Granted Jun 19, 1990·89 cites·5 claims
- 4785US4927818ACephem compounds and processes for preparation thereofFUJISAWA PHARMACEUTICAL CO·Filed 1987·Granted May 22, 1990·31 cites·9 claims
- 4885US4761410ACephem CompoundsFUJISAWA PHARMACEUTICAL CO·Filed 1985·Granted Aug 2, 1988·20 cites·8 claims
- 4985US4463002ASyn-isomers of 7-substituted-3-cephem-4-carboxylic acid estersFUJISAWA PHARMACEUTICAL CO·Filed 1982·Granted Jul 31, 1984·24 cites·5 claims
- 5085US4409217ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1980·Granted Oct 11, 1983·15 cites·3 claims
Showing the top 50 of 150 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →