Inventor · disambiguated record
Masahiko Otsuka
Also filed as: OTSUKA MASAHIKO
4 granted patents·1 pending application·101 citations·filing 1987–2021
73Inventor score
Top patents by PatentIndex Score
5 records- 0192US4833226AHardener for curable one-package epoxy resin systemASAHI CHEMICAL IND·Filed 1987·Granted May 23, 1989·75 cites·23 claims
- 0277US4761460APolymaleimide compound and composition containing the sameASAHI CHEMICAL IND·Filed 1987·Granted Aug 2, 1988·26 cites·4 claims
- 0343US11534871B2Dissimilar metal joint including flame-retardant magnesium alloy layerASAHI CHEMICAL IND·Filed 2018·Granted Dec 27, 2022·0 cites·6 claims
- 0442US2015314390A1Different-material jointASAHI KASEI CHEICALS CORP·Filed 2014·Application pending·0 cites
- 0533US12460461B2Door hinge using link between shaftsGLOBAL ARC INC·Filed 2021·Granted Nov 4, 2025·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →