Inventor · disambiguated record
Keiichiro Ishikawa
Also filed as: ISHIKAWA KEIICHIRO
5 granted patents·24 citations·filing 1980–1999
74Inventor score
Top patents by PatentIndex Score
5 records- 0162US4405419AMethod for producing electrolytic manganese dioxideJAPAN METAL AND CHEMICAL CO LT·Filed 1980·Granted Sep 20, 1983·17 cites·16 claims
- 0244US5981764AProcess for producing 1-aminopyrrolidine, and 1-aminopyrrolidine according to the processOTSUKA CHEMICAL CO LTD·Filed 1998·Granted Nov 9, 1999·3 cites·3 claims
- 0329US6433042B1Curing agents for epoxy resinsOTSUKA KAGAKU KK·Filed 1999·Granted Aug 13, 2002·2 cites·4 claims
- 0427US6359036B11-Aminopyrrolidine or its salt as epoxy resin hardenerOTSUKA KAGAKU KK·Filed 1999·Granted Mar 19, 2002·1 cites·5 claims
- 0526US6372825B1Aqueous solution of water-soluble epoxy resin, solid obtained therefrom, and processes for producing theseOTSUKA KAGAKU KK·Filed 1999·Granted Apr 16, 2002·1 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →