Inventor
NAKAGUTI OSAMU
28 patents
Patents
28 patentsUS4940709AJul 10, 1990
Piperazine compound as PAF-antagonist
FUJISAWA PHARMACEUTICAL CO67 citations96
US4806538AFeb 21, 1989
Piperazine compound as PAF-antagonist
FUJISAWA PHARMACEUTICAL CO52 citations96
US4576753AMar 18, 1986
Azetidinone compounds and processes for preparation thereof
FUJISAWA PHARMACEUTICAL CO73 citations96
US4472309ASep 18, 1984
2-Azetidinone compounds and processes for preparation thereof
FUJISAWA PHARMACEUTICAL CO40 citations92
US4304718ADec 8, 1981
2-Azetidinone compounds and processes for preparation thereof
FUJISAWA PHARMACEUTICAL CO45 citations92
US4694004ASep 15, 1987
Semicarbazide derivatives, processes for preparation thereof and pharmaceutical composition comprising the same
FUJISAWA PHARMACEUTICAL CO33 citations91
US4181800AJan 1, 1980
2-Azetidinone compounds and processes for preparation thereof
FUJISAWA PHARMACEUTICAL CO27 citations82
US3954732AMay 4, 1976
Penam and cepham derivatives and preparation thereof
FUJISAWA PHARMACEUTICAL CO18 citations82
US4207234AJun 10, 1980
4-Unsubstituted azetidinone derivatives and process for preparation thereof
FUJISAWA PHARMACEUTICAL CO29 citations81
US4218374AAug 19, 1980
Penam derivatives
FUJISAWA PHARMACEUTICAL CO11 citations74
US4191762AMar 4, 1980
2-Lower alkyl-7-substituted amino-2 or 3-cephem-4-carboxylic acid compounds
FUJISAWA PHARMACEUTICAL CO6 citations74
US4164497AAug 14, 1979
2-Substituted penam derivatives
FUJISAWA PHARMACEUTICAL CO7 citations74
US4084049AApr 11, 1978
Cepham derivatives
FUJISAWA PHARMACEUTICAL CO7 citations74
US4009159AFeb 22, 1977
Halogenated penam derivatives and the preparation thereof
FUJISAWA PHARMACEUTICAL CO8 citations74
US3993646ANov 23, 1976
Process for the ring expansion of penicillins to cephalosporin compounds
FUJISAWA PHARMACEUTICAL CO10 citations74
US4001280AJan 4, 1977
Chromone derivatives
FUJISAWA PHARMACEUTICAL CO7 citations73
US4410458AOct 18, 1983
Process for providing an oxidized penam
FUJISAWA PHARMACEUTICAL CO3 citations67
US4308380ADec 29, 1981
2-Lower alkyl-2 or 3-cephem-4-carboxylic acid derivatives
FUJISAWA PHARMACEUTICAL CO6 citations63
US4267340AMay 12, 1981
Disulfide substituted oxazetidine derivatives
FUJISAWA PHARMACEUTICAL CO2 citations63
US4237305ADec 2, 1980
Substituted phenylacetic acid compounds and process for preparation thereof
FUJISAWA PHARMACEUTICAL CO2 citations63
US4203897AMay 20, 1980
Penam derivatives
FUJISAWA PHARMACEUTICAL CO5 citations63
US4113940ASep 12, 1978
7-amino 2-lower alkyl-2 or 3-cephem-4-carboxylic acid derivatives and processes for preparation thereof
FUJISAWA PHARMACEUTICAL CO6 citations63
US4091210AMay 23, 1978
Preparation of 3-alkyl-3-cephem-4-carboxylic acid compounds from dithio isopropenyl azetidine carboxylic compounds
FUJISAWA PHARMACEUTICAL CO4 citations63
US4056521ANov 1, 1977
Penam and cepham derivatives and preparation thereof
FUJISAWA PHARMACEUTICAL CO4 citations63
US4036847AJul 19, 1977
Halogenated penam derivatives and the preparation thereof
FUJISAWA PHARMACEUTICAL CO2 citations63
US4931555AJun 5, 1990
Disulfide substituted oxazetidine derivatives
FUJISAWA PHARMACEUTICAL CO0 citations52
US4472300ASep 18, 1984
Azetidinone derivatives and process for preparation thereof
FUJISAWA PHARMACEUTICAL CO1 citations52
US4264498AApr 28, 1981
Process for the preparation of 1,3-disubstituted-2-azetidinones from triazines
FUJISAWA PHARMACEUTICAL CO0 citations52