Inventor · disambiguated record
Isamu Takakura
Also filed as: SAIKAWA ISAMU · TAKAKURA ISAMU
11 granted patents·77 citations·filing 1977–1994
89Inventor score
Top patents by PatentIndex Score
11 records- 0192US4317907AProcess for producing 7-(substituted)amino-3-substituted thiomethyl cephem carboxylic acidsTOYAMA CHEMICAL CO LTD·Filed 1978·Granted Mar 2, 1982·25 cites·88 claims
- 0278US4263292A7α-methoxycephalosporins and pharmaceutical composition comprising the sameTOYAMA CHEMICAL CO LTD·Filed 1979·Granted Apr 21, 1981·10 cites·16 claims
- 0376US4312986AProcess for producing 7-(substituted)amino-3-substituted thiomethyl-Δ3 -cephem-4-carboxylic acidsTOYAMA CHEMICAL CO LTD·Filed 1979·Granted Jan 26, 1982·9 cites·23 claims
- 0469US4385178AProcess for producing 7-(substituted)amino-3-substituted thiomethyl cephem carboxylic acidsTOYAMA CHEMICAL CO LTD·Filed 1981·Granted May 24, 1983·6 cites·6 claims
- 0560US4395412A7α-MethoxycephalosporinsTOYAMA CHEMICAL CO LTD·Filed 1980·Granted Jul 26, 1983·4 cites·23 claims
- 0660US4200744ASubstituted 7α-methoxy-7β[(2,3-dioxo-1-piperazinyl)carbonylaminophenylacetamido]cephalosporinsTOYAMA CHEMICAL CO LTD·Filed 1977·Granted Apr 29, 1980·4 cites·12 claims
- 0755US4129730A7α-Methoxy-cephalosporinsTOYAMA CHEMICAL CO LTD·Filed 1977·Granted Dec 12, 1978·5 cites·6 claims
- 0845US4304909AProcess 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 thereofTOYAMA CHEMICAL CO LTD·Filed 1979·Granted Dec 8, 1981·1 cites·12 claims
- 0943US4237280AIntermediate for cephalosporin type compoundTOYAMA CHEMICAL COMPANY LIMITE·Filed 1978·Granted Dec 2, 1980·1 cites·2 claims
- 1041US4321265A7α-MethoxycephalosporinsTOYAMA CHEMICAL CO LTD·Filed 1980·Granted Mar 23, 1982·1 cites·28 claims
- 1140US5858408ASustained-release oral ointmentTOYAMA CHEMICAL CO LTD·Filed 1994·Granted Jan 12, 1999·11 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →