Inventor · disambiguated record
Ryuko Takeno
Also filed as: TAKENO RYUKO
11 granted patents·129 citations·filing 1980–1988
89Inventor score
Files withTOYAMA CHEMICAL CO LTD8TOYAMA CHEMICAL COMPANY LIMITE1TOYAMA CHEMICAL COMPANY LTD1TOYOMA CHEMICAL CO LTD1
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11 records- 0192US4954518A4H-1-benzopyran-4-one derivative or its salt, process for producing the same and pharmaceutical composition comprising the same as active ingredientTOYAMA CHEMICAL COMPANY LTD·Filed 1988·Granted Sep 4, 1990·100 cites·27 claims
- 0278US4656287AAminothiazole intermediate for a cephalosporinTOYOMA CHEMICAL CO LTD·Filed 1985·Granted Apr 7, 1987·13 cites·1 claims
- 0366US4436921A1-(4-Aminobenzyl)-2,3-dioxopiperazine derivatives, acid addition salts thereof and process for producing sameTOYAMA CHEMICAL CO LTD·Filed 1980·Granted Mar 13, 1984·4 cites·4 claims
- 0456US4736026ANovel process for producing a cephalosporinTOYAMA CHEMICAL CO LTD·Filed 1986·Granted Apr 5, 1988·4 cites·12 claims
- 0550US4563534AProcess for producing 2-(2-aminothiazol-4-yl)glyoxylic acid derivative or a salt thereof, and intermediates therefor and process for producing the intermediatesTOYAMA CHEMICAL CO LTD·Filed 1983·Granted Jan 7, 1986·2 cites·6 claims
- 0648US4477666A1-(4-Aminobenzyl)-2,3-dioxopiperazine derivatives, acid addition salts thereof and process for producing sameTOYAMA CHEMICAL CO LTD·Filed 1982·Granted Oct 16, 1984·2 cites·3 claims
- 0746US4460774A1-(4-Aminobenzyl)-2,3-dioxopiperazine derivatives, acid addition salts thereof and process for producing sameTOYAMA CHEMICAL COMPANY LIMITE·Filed 1982·Granted Jul 17, 1984·1 cites·2 claims
- 0841US4477664ANovel 1-(4-piperidiniobenzyl)-2,3-dioxopiperazine derivatives or acid addition salts thereofTOYAMA CHEMICAL CO LTD·Filed 1982·Granted Oct 16, 1984·1 cites·3 claims
- 0941US4448963A4-[4-(Thiazolyl-amino)benzyl]-2,3-dioxopiperazine derivatives, acid addition salts thereof and process for producing sameTOYAMA CHEMICAL CO LTD·Filed 1982·Granted May 15, 1984·1 cites·2 claims
- 1038US4667040ANovel process for producing 2-(2-aminothiazol-4-yl)glyoxylic acid derivative or a salt thereof, and intermediates therefor and process for producing the intermediatesTOYAMA CHEMICAL CO LTD·Filed 1985·Granted May 19, 1987·1 cites·12 claims
- 1131US4459407A1-(4-Aminobenzyl)-2,3-dioxopiperazine derivatives and salts thereofTOYAMA CHEMICAL CO LTD·Filed 1982·Granted Jul 10, 1984·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →