Inventor
OKA MASAHISA
26 patents
⚠️ This page may combine multiple inventors who share the name “OKA MASAHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BRISTOL MYERS CO
18 patentsUS4751295AJun 14, 1988
Cephalosporin derivatives
BRISTOL MYERS CO23 citations82
US4777160AOct 11, 1988
BU-2867T peptide antibiotics
BRISTOL MYERS CO7 citations74
US4742047AMay 3, 1988
Semi-synthetic peptide antibiotics
BRISTOL MYERS CO14 citations73
US4507487AMar 26, 1985
Chemical compounds
BRISTOL MYERS CO6 citations73
US4151352AApr 24, 1979
7-Amino-3-(2-carboxyalkyl-2,3-dihydro-s-triazolo[4,3-b]pyridazin-3-on-6-ylthiomethyl)-3-cephem-4-carboxylic acids
BRISTOL MYERS CO5 citations73
US4692510ASep 8, 1987
Peptide antibiotics
BRISTOL MYERS CO9 citations72
US4916063AApr 10, 1990
BU-2867T peptide antibiotics
BRISTOL MYERS CO2 citations63
US4394503AJul 19, 1983
Cephalosporin derivatives
BRISTOL MYERS CO5 citations63
US4198504AApr 15, 1980
[3-(Pyridinium)-7-(naphthyiridinyl carbonylamino)acetamido]cephalosporanic acid derivatives
BRISTOL MYERS CO4 citations63
US4138554AFeb 6, 1979
7-[D-α-(4-Hydroxy-1,5-naphthyridine-3-carboxamido)-α-phenyl (and p-hydroxyphenyl)acetamido]-3-carbamoyloxymethyl-3-cephem-4-carboxylic acids
BRISTOL MYERS CO5 citations63
US4789731ADec 6, 1988
Semi-synthetic peptide antibiotics
BRISTOL MYERS CO3 citations62
US5025023AJun 18, 1991
Peptide antibiotics
BRISTOL MYERS CO2 citations61
US4898940AFeb 6, 1990
Peptide antibiotics
BRISTOL MYERS CO2 citations61
US4833076AMay 23, 1989
Peptide antibiotics
BRISTOL MYERS CO3 citations61
US4474954AOct 2, 1984
Intermediates for cephalosporin derivatives
BRISTOL MYERS CO1 citations52
US4288590ASep 8, 1981
7-[Dα-(4-Hydroxy-1,5-naphthyridine-3-carboxamido)-α-arylacetamido]-3-(N,N-dimethyl-aminomethylpyridinium) methyl-3-cephem-4-carboxylates
BRISTOL MYERS CO1 citations52
US4198506AApr 15, 1980
2-Carboxyalkyl-2,3-dihydro-6-mercapto-s-triazolo[4,3-b]-pyridazin-3-ones
BRISTOL MYERS CO0 citations52
US4082912AApr 4, 1978
Certain 7-acylamido-3-(2-carboxyalkyl-2,3-dihydro-s-triazolo[4,3-b]pyridazin-3-on-6-ylmethyl)-3-cephem-4-carboxylic acids their salts and easily hydrolyzed esters
BRISTOL MYERS CO1 citations52
BRISTOL MYERS SQUIBB CO
5 patentsUS5266600ANov 30, 1993
BU-4641V, an antibacterial, antiviral and antitumor antibiotic
BRISTOL MYERS SQUIBB CO30 citations89
US5096884AMar 17, 1992
Glidobactin pf-1 peptide antibiotics
BRISTOL MYERS SQUIBB CO3 citations62
US5140101AAug 18, 1992
Antiviral antibiotic BU-4344V
BRISTOL MYERS SQUIBB CO2 citations60
US5079148AJan 7, 1992
Peptide antibiotics
BRISTOL MYERS SQUIBB CO0 citations51
US5256548AOct 26, 1993
Antiviral antibiotic BU-4344V
BRISTOL MYERS SQUIBB CO0 citations49