Inventor · disambiguated record
Yasuo Kiba
Also filed as: KIBA YASUO
10 granted patents·95 citations·filing 1980–1990
87Inventor score
Top patents by PatentIndex Score
10 records- 0193US4643849AIntermediates for urea and thiourea derivativesTOYAMA CHEMICAL CO LTD·Filed 1983·Granted Feb 17, 1987·53 cites·10 claims
- 0288US4610983AN-acyl acidic amino acid diamide derivative, a salt thereof, and an anti-ulcer agent containing the sameTOYAMA CHEMICAL CO LTD·Filed 1984·Granted Sep 9, 1986·30 cites·22 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
- 0448US4477666A1-(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
- 0546US4460774A1-(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
- 0641US4477664ANovel 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
- 0741US4448963A4-[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
- 0840US5120746AAmine derivatives, salts thereof, process for preparing the same and an anti-ulcer agent containing the sameTOYAMA CHEMICAL CO LTD·Filed 1990·Granted Jun 9, 1992·2 cites·18 claims
- 0931US4459407A1-(4-Aminobenzyl)-2,3-dioxopiperazine derivatives and salts thereofTOYAMA CHEMICAL CO LTD·Filed 1982·Granted Jul 10, 1984·0 cites·5 claims
- 1030US4923882ANovel amine derivatives, salts thereof and an anti-ulcer agent containing the sameTOYAMA CHEMICAL CO LTD·Filed 1986·Granted May 8, 1990·1 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →