Inventor · disambiguated record
Ritsuko Hirakawa
Also filed as: HIRAKAWA RITSUKO
2 granted patents·1 pending application·11 citations·filing 2006–2006
49Inventor score
Files withSHOWA DENKO KK3
Top patents by PatentIndex Score
3 records- 0186US7642334B2Polymer of polycarbonate diol having an alicyclic structure and production process thereofSHOWA DENKO KK·Filed 2006·Granted Jan 5, 2010·11 cites·10 claims
- 0243US2009082518A1Carboxyl group-containing polyurethane, heat-curable resin composition and uses thereofSHOWA DENKO KK·Filed 2006·Application pending·0 cites
- 0341US7696366B2Production process of bifunctional epoxy monomer by selective oxidation of diolefin compoundSHOWA DENKO KK·Filed 2006·Granted Apr 13, 2010·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →