Inventor
HAMASHIMA YOSHIO
JP38 patents
⚠️ This page may combine multiple inventors who share the name “HAMASHIMA YOSHIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHIONOGI & CO
37 patentsUS4634697AJan 6, 1987
Carboxyalkenamidocephalosporins
SHIONOGI & CO101 citations96
US4933443AJun 12, 1990
Method for preparing crystalline hydrate of oral celphalosporin and its composition
SHIONOGI & CO55 citations95
US4812561AMar 14, 1989
Crystalline hydrate of oral cephalosporin and its composition
SHIONOGI & CO97 citations95
US5017380AMay 21, 1991
Gelatin hard capsule containing crystalline hydrate of oral cephalosporin
SHIONOGI & CO44 citations91
US4346218AAug 24, 1982
Cyclization process to form cephem ring
SHIONOGI & CO14 citations82
US4079181AMar 14, 1978
Certain 7-oxo-4-thio-2,6-diazabicyclo-3,2,0-hept-2-ene compounds
SHIONOGI & CO19 citations82
US4532233AJul 30, 1985
Fluoromethylthiooxacephalosporins
SHIONOGI & CO15 citations74
US4254119AMar 3, 1981
3-Unsubstituted-3-cephem compounds
SHIONOGI & CO11 citations74
US4232151ANov 4, 1980
Dihydrotriazinylthiooxacephalosporins
SHIONOGI & CO11 citations74
US4478997AOct 23, 1984
1-Oxadethiacepham compounds
SHIONOGI & CO4 citations73
US4366316ADec 28, 1982
1-Oxadethiacepham compounds and process for producing said compounds
SHIONOGI & CO11 citations73
US4332722AJun 1, 1982
Cyclization to form cephem ring and intermediates therefor
SHIONOGI & CO7 citations73
US4220766ASep 2, 1980
Oxazolines
SHIONOGI & CO9 citations73
US4183855AJan 15, 1980
Oxazolinoazetidinylbutyric acid derivatives
SHIONOGI & CO12 citations73
US4160085AJul 3, 1979
Cyclization to form cephem ring and intermediates therefor
SHIONOGI & CO9 citations73
US4731361AMar 15, 1988
Alkeneamidocephalosporin esters
SHIONOGI & CO7 citations72
US4731362AMar 15, 1988
Alkylcarbamoyloxymethylcephem compounds
SHIONOGI & CO18 citations72
US4604460AAug 5, 1986
1-oxadethiacepham compounds
SHIONOGI & CO7 citations72
US4226864AOct 7, 1980
7-Substituted aminoacetamido oxadethiacephalosporins
SHIONOGI & CO14 citations71
US4081595AMar 28, 1978
Reduction giving 3-cephem compounds
SHIONOGI & CO8 citations70
US4647658AMar 3, 1987
Process for preparing aminohydroxycephamcarboxylates
SHIONOGI & CO12 citations66
US4748170AMay 31, 1988
Carboxyalkenamidocephalosporins
SHIONOGI & CO2 citations63
US4491547AJan 1, 1985
Fluoromethylthioacetic acid compounds
SHIONOGI & CO4 citations63
US4143038AMar 6, 1979
Cephalosporin analogues
SHIONOGI & CO5 citations63
US4271296AJun 2, 1981
Oxazolines
SHIONOGI & CO3 citations62
US4271295AJun 2, 1981
Oxazolines
SHIONOGI & CO4 citations62
US4130557ADec 19, 1978
Method for the hydrolysis of azetidinothiazoline compounds
SHIONOGI & CO6 citations62
US4578378AMar 25, 1986
(Oxoheterocyclic carbonamido)cephem carboxylic acid derivatives
SHIONOGI & CO4 citations61
US4443598AApr 17, 1984
1-Oxadethiacepham compounds
SHIONOGI & CO5 citations61
US4912224AMar 27, 1990
Carboxyalkenamidocephalosporins
SHIONOGI & CO0 citations52
US4569993AFeb 11, 1986
Malonyloxacephemcarboxylic acid derivatives
SHIONOGI & CO1 citations52
US4197402AApr 8, 1980
Cephalosporin analogues
SHIONOGI & CO1 citations52
US4533730AAug 6, 1985
1-Oxadethiacepham compounds
SHIONOGI & CO0 citations51
US4504659AMar 12, 1985
1-Oxadethiacepham compounds
SHIONOGI & CO0 citations51
US4183928AJan 15, 1980
Haloarylmalonamidooxacephalosporins
SHIONOGI & CO0 citations51
US4592865AJun 3, 1986
Azetidinone intermediates for cephalosporin analogs
SHIONOGI & CO0 citations42
US4283333AAug 11, 1981
α-[4-Oxoazetidin-1-yl]-acetic acid compounds useful as intermediates in preparing 1-oxadethiacephalosporins
SHIONOGI & CO0 citations42