Inventor · disambiguated record
Katsumi Kumahara
Also filed as: KUMAHARA KATSUMI
4 granted patents·55 citations·filing 1982–1984
77Inventor score
Files withCHISSO CORP4
Top patents by PatentIndex Score
4 records- 0167US4550144APropylene-ethylene copolymers for high-rigidity molded products and process for producing the sameCHISSO CORP·Filed 1983·Granted Oct 29, 1985·16 cites·10 claims
- 0265US4522994APolypropylene resin for high-rigidity molded productsCHISSO CORP·Filed 1982·Granted Jun 11, 1985·14 cites·3 claims
- 0361US4582878AHigh-rigidity ethylene-propylene copolymer and process for producing sameCHISSO CORP·Filed 1984·Granted Apr 15, 1986·20 cites·14 claims
- 0442US4526931AWhitening-resistant, highly melt-viscoelastic ethylene-propylene copolymer and process for producing the sameCHISSO CORP·Filed 1984·Granted Jul 2, 1985·5 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →