Inventor
TAKAKURA ISAMU
11 patents
⚠️ This page may combine multiple inventors who share the name “TAKAKURA ISAMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOYAMA CHEMICAL CO LTD
10 patentsUS4317907AMar 2, 1982
Process for producing 7-(substituted)amino-3-substituted thiomethyl cephem carboxylic acids
TOYAMA CHEMICAL CO LTD25 citations80
US4263292AApr 21, 1981
7α-methoxycephalosporins and pharmaceutical composition comprising the same
TOYAMA CHEMICAL CO LTD10 citations73
US4385178AMay 24, 1983
Process for producing 7-(substituted)amino-3-substituted thiomethyl cephem carboxylic acids
TOYAMA CHEMICAL CO LTD6 citations72
US4312986AJan 26, 1982
Process for producing 7-(substituted)amino-3-substituted thiomethyl-Δ3 -cephem-4-carboxylic acids
TOYAMA CHEMICAL CO LTD9 citations72
US5858408AJan 12, 1999
Sustained-release oral ointment
TOYAMA CHEMICAL CO LTD11 citations66
US4395412AJul 26, 1983
7α-Methoxycephalosporins
TOYAMA CHEMICAL CO LTD4 citations62
US4129730ADec 12, 1978
7α-Methoxy-cephalosporins
TOYAMA CHEMICAL CO LTD5 citations62
US4200744AApr 29, 1980
Substituted 7α-methoxy-7β[(2,3-dioxo-1-piperazinyl)carbonylaminophenylacetamido]cephalosporins
TOYAMA CHEMICAL CO LTD4 citations60
US4321265AMar 23, 1982
7α-Methoxycephalosporins
TOYAMA CHEMICAL CO LTD1 citations51
US4304909ADec 8, 1981
Process for producing 7-(D(-)-α-(4-ethyl-2,3-dioxo-1-piperazinecarboxamido)-α-(4-hydroxyphenyl)acetamido)-3-(5-(1-methyl-1,2,3,4-tetrazolyl)thiomethyl)-.DELTA.3 -cephem-4-carboxylic acid and a pharmaceutically acceptable salt thereof
TOYAMA CHEMICAL CO LTD1 citations51