Inventor · disambiguated record
Hisashi Takasugi
Also filed as: TAKASUGI HISASHI
136 granted patents·9 pending applications·1,938 citations·filing 1976–2008
99Inventor score
Top patents by PatentIndex Score
145 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
- 0997US4341775ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1979·Granted Jul 27, 1982·37 cites·3 claims
- 1096US4462999A7-Acylamino-3-substituted cephalosporanic acid derivatives and processes for the preparation thereofFUJISAWA PHARMACEUTICAL CO·Filed 1981·Granted Jul 31, 1984·30 cites·5 claims
- 1196US4220761A7-[Substituted oximinoacetamido]-3-[hydroxy alkyltetrazolo]cephalosporin derivativesFUJISAWA PHARMACEUTICAL CO·Filed 1978·Granted Sep 2, 1980·37 cites·8 claims
- 1295US4427677ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1981·Granted Jan 24, 1984·40 cites·6 claims
- 1395US4298529AAlkoxyimino dioxy butyric acid derivativesFUJISAWA PHARMACEUTICAL CO·Filed 1979·Granted Nov 3, 1981·26 cites·7 claims
- 1493US4452851ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1982·Granted Jun 5, 1984·30 cites·34 claims
- 1593US4423213A7-Acylamino-3-vinylcephalosporanic acid derivatives and processes for the preparation thereofFUJISAWA PHARMACEUTICAL CO·Filed 1981·Granted Dec 27, 1983·33 cites·9 claims
- 1693US4294960A7-[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
- 1792US4515788ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1982·Granted May 7, 1985·19 cites·6 claims
- 1891US4585860A7-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
- 1991US4425341ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1978·Granted Jan 10, 1984·23 cites·51 claims
- 2091US4263291A3,7-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
- 2190US7465731B2HDAC inhibitorASTELLAS PHARMA INC·Filed 2005·Granted Dec 16, 2008·18 cites·18 claims
- 2290US4735957AThiazole derivatives, processes for the preparation thereof and pharmaceutical composition comprising the sameFUJISAWA PHARMACEUTICAL CO·Filed 1986·Granted Apr 5, 1988·25 cites·13 claims
- 2390US4546101ANew 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
- 2490US4438113A7-Acylaminocephalosporanic acid derivativesFUJISAWA PHARMACEUTICAL CO·Filed 1981·Granted Mar 20, 1984·17 cites·17 claims
- 2590US4284631A7-Substituted cephem compounds and pharmaceutical antibacterial compositions containing themFUJISAWA PHARMACEUTICAL CO·Filed 1979·Granted Aug 18, 1981·29 cites·27 claims
- 2690US4279818ASyn-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
- 2790US4254260A3-Substituted-7-substituted alkanamido-3-cephem-4-carboxylic acid compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1976·Granted Mar 3, 1981·32 cites·8 claims
- 2889US5217971AThiazole compounds and pharmaceutical composition comprising the sameFUJISAWA PHARMACEUTICAL CO·Filed 1991·Granted Jun 8, 1993·44 cites·10 claims
- 2989US4405617A3-(Propynyltetrazol)thiomethyl-3-cephemsFUJISAWA PHARMACEUTICAL CO·Filed 1981·Granted Sep 20, 1983·18 cites·12 claims
- 3088US4496562A7-Substituted-3-cephem-4-carboxylic acid estersFUJISAWA PHARMACEUTICAL CO·Filed 1982·Granted Jan 29, 1985·18 cites·6 claims
- 3188US4463003ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1982·Granted Jul 31, 1984·18 cites·5 claims
- 3287US4705851AProcess for the preparation of 3-phosphoniummethyl-3-cephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1984·Granted Nov 10, 1987·21 cites·2 claims
- 3386US4584290ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1983·Granted Apr 22, 1986·26 cites·6 claims
- 3486US4499088ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1983·Granted Feb 12, 1985·27 cites·10 claims
- 3586US4487768ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1982·Granted Dec 11, 1984·16 cites·3 claims
- 3686US4477447A7-Acylaminocephalosporanic acid derivativesFUJISAWA PHARMACEUTICAL CO·Filed 1982·Granted Oct 16, 1984·17 cites·3 claims
- 3785US7557127B2HDAC inhibitorASTELLAS PHARMA INC·Filed 2008·Granted Jul 7, 2009·8 cites·21 claims
- 3885US4463002ASyn-isomers of 7-substituted-3-cephem-4-carboxylic acid estersFUJISAWA PHARMACEUTICAL CO·Filed 1982·Granted Jul 31, 1984·24 cites·5 claims
- 3985US4409217ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1980·Granted Oct 11, 1983·15 cites·3 claims
- 4085US4304770ASyn-isomer of 3,7-disubstituted-3-cephem-4-carboxylic acid compounds and processes for the preparation thereofFUJISAWA PHARMACEUTICAL CO·Filed 1979·Granted Dec 8, 1981·12 cites·4 claims
- 4184US5229386AThiazole compounds, processes for the preparation thereof and pharmaceutical composition comprising the sameFUJISAWA PHARMACEUTICAL CO·Filed 1992·Granted Jul 20, 1993·30 cites·5 claims
- 4284US4443444ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1981·Granted Apr 17, 1984·15 cites·14 claims
- 4383US6107458ACyclic hexapeptides having antibiotic activityFUJISAWA PHARMACEUTICAL CO·Filed 1995·Granted Aug 22, 2000·36 cites·5 claims
- 4483US4698337ACephem compounds and processes for preparation thereofFUJISAWA PHARMACEUTICAL CO·Filed 1986·Granted Oct 6, 1987·17 cites·12 claims
- 4583US4596829A7-acylaminocephalosporanic acid derivatives and processes for the preparation thereofFUJISAWA PHARMACEUTICAL CO·Filed 1984·Granted Jun 24, 1986·10 cites·12 claims
- 4683US4416879ACephem compoundsFUJISAWA PHARMACEUTICAL CO·Filed 1981·Granted Nov 22, 1983·21 cites·21 claims
- 4782US4487927A3-Phosphonium and 3-phosphoranylidenecephemsFUJISAWA PHARMACEUTICAL CO·Filed 1982·Granted Dec 11, 1984·13 cites·3 claims
- 4881US4988698A2(1H)-quinolinone compounds and pharmaceutical composition comprising the sameFUJISAWA PHARMACEUTICAL CO·Filed 1989·Granted Jan 29, 1991·30 cites·6 claims
- 4981US4904652A7-acylamino-3-substituted cephalosporanic acid derivativesFUJISAWA PHARMACEUTICAL CO·Filed 1985·Granted Feb 27, 1990·10 cites·3 claims
- 5080US5047411ABenzazole compounds and pharmaceutical composition comprising the sameFUJISAWA PHARMACEUTICAL CO·Filed 1989·Granted Sep 10, 1991·28 cites·4 claims
Showing the top 50 of 145 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →