Inventor
NEGI SHIGETO
JP38 patents
⚠️ This page may combine multiple inventors who share the name “NEGI SHIGETO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EISAI CO LTD
34 patentsUS6841549B1Jan 11, 2005
Condensed imidazole compounds and a therapeutic agent for diabetes mellitus
EISAI CO LTD35 citations91
US4748171AMay 31, 1988
Cephem compounds having at the 3-position a (1,4-methylene-1-piperidinio)methyl group or a (1-quinuclidinio)methyl group
EISAI CO LTD15 citations82
US4468394AAug 28, 1984
Cephalosporin compounds
EISAI CO LTD25 citations82
US5010188AApr 23, 1991
Cephem derivatives
EISAI CO LTD7 citations74
US4698336AOct 6, 1987
3-(pyrrolidinio)methyl-3-cephem derivatives
EISAI CO LTD6 citations74
US4546176AOct 8, 1985
7-Carboxymethoxyphenylacetamido-3-cephem derivatives and antibacterial preparations containing the same
EISAI CO LTD13 citations74
US5151417ASep 29, 1992
3-substituted vinyl cephalosporin derivatives
EISAI CO LTD13 citations73
US4921850AMay 1, 1990
3-propenylcephem derivative
EISAI CO LTD5 citations73
US6642377B1Nov 4, 2003
Process for the preparation of basic antibiotic-inorganic acid addition salts and intermediate oxalates
EISAI CO LTD7 citations71
US5541213AJul 30, 1996
Propenoic acid derivatives diazole propenoic acid compounds which have useful pharmaceutical utility
EISAI CO LTD8 citations71
US5008260AApr 16, 1991
Cephem derivatives
EISAI CO LTD2 citations63
US4344944AAug 17, 1982
7-α-methoxycephalosporin derivatives, and antibacterial drugs onctaining the same
EISAI CO LTD4 citations63
US4285940AAug 25, 1981
Cephalosporin derivatives, and antibacterial drugs comprising said derivatives
EISAI CO LTD3 citations63
US5604217AFeb 18, 1997
7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparation
EISAI CO LTD2 citations62
US5559225ASep 24, 1996
7-acyl-3-(substituted carbamoyloxy) cephem compound
EISAI CO LTD1 citations62
US5373000ADec 13, 1994
7Beta-(thiadiazolyl)-2-iminoacetamido-3cephem compounds
EISAI CO LTD4 citations62
US5128465AJul 7, 1992
Process for the preparation of cephem derivatives and intermediates therefor
EISAI CO LTD4 citations62
US5089491AFeb 18, 1992
3-propenylcephem derivative
EISAI CO LTD2 citations62
US5006649AApr 9, 1991
3-propenylcephem derivative
EISAI CO LTD1 citations62
US4929612AMay 29, 1990
Thiadiazolylacetamide cephem derivatives
EISAI CO LTD4 citations62
US4285941AAug 25, 1981
Cephalosporin compounds and antibacterial drugs containing the same
EISAI CO LTD6 citations62
US4285939AAug 25, 1981
Cephalosporin derivatives, and antibacterial drugs containing the derivatives
EISAI CO LTD2 citations62
US5606073AFeb 25, 1997
Diazole-propenoic acid compounds
EISAI CO LTD4 citations60
US4513145AApr 23, 1985
2-Methylchromone derivatives and process for their preparation
EISAI CO LTD1 citations52
US4415567ANov 15, 1983
7α-Methoxycephalosporin derivatives, and antibacterial drugs containing the same
EISAI CO LTD0 citations52
US4331606AMay 25, 1982
N-(Substituted chromone-3-carbonyl)-phenylglycine derivatives
EISAI CO LTD1 citations52
US5741902AApr 21, 1998
7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparation
EISAI CO LTD0 citations51
US5587473ADec 24, 1996
7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparation
EISAI CO LTD0 citations51
US5563265AOct 8, 1996
7-acyl-3-(substituted carbamoyloxy) cephem compounds
EISAI CO LTD0 citations51
US4352801AOct 5, 1982
Cephem derivatives and antibacterial agents comprising said compounds
EISAI CO LTD1 citations51
US4309354AJan 5, 1982
Chromone derivatives
EISAI CO LTD1 citations51
US4448775AMay 15, 1984
3-Carbamoyloxymethylcephem derivatives, and antibacterial drugs containing same
EISAI CO LTD0 citations48
US4433142AFeb 21, 1984
Process for the preparation of 7-(2-amino-2-phenylacetamido) cephem derivatives
EISAI CO LTD0 citations38
US6620945B2Sep 16, 2003
Process for producing stereoisomer of pyrrolidine derivative
EISAI CO LTD0 citations35
EISAI R&D MAN CO LTD
4 patentsUS7803949B2Sep 28, 2010
Process for preparation of water-soluble azole prodrugs
EISAI R&D MAN CO LTD2 citations60
US7585982B2Sep 8, 2009
Methods for producing isoindole derivatives
EISAI R&D MAN CO LTD0 citations51
US7858809B2Dec 28, 2010
Process for production of pyrazole-fused ring derivatives
EISAI R&D MAN CO LTD0 citations49
US7816405B2Oct 19, 2010
Calcium bis [(2S)-3-[3-[(2S)-3-(4-chloro-2-cyanophenoxy)-2-fluoropropoxy]phenyl ]-2-isopropoxypropionate] and intermediate thereof
EISAI R&D MAN CO LTD0 citations48