Inventor · disambiguated record
Hiromasa Chiba
Also filed as: CHIBA HIROMASA
16 granted patents·300 citations·filing 1979–1995
94Inventor score
Files withCHISSO CORP16
Top patents by PatentIndex Score
16 records- 0184US4483971AProcess for producing terpolymers of propylene, ethylene and another .alpha.CHISSO CORP·Filed 1983·Granted Nov 20, 1984·32 cites·7 claims
- 0279US4245062AProcess for producing propylene-ethylene copolymersCHISSO CORP·Filed 1979·Granted Jan 13, 1981·29 cites·5 claims
- 0378US4981938AHighly crystalline polypropyleneCHISSO CORP·Filed 1988·Granted Jan 1, 1991·32 cites·1 claims
- 0471US4304890AMethod for producing propylene copolymers using a catalyst activated prior to copolymerizationCHISSO CORP·Filed 1980·Granted Dec 8, 1981·27 cites·4 claims
- 0569US4771103AProcess for continuously producing propylene-ethylene block copolymerCHISSO CORP·Filed 1986·Granted Sep 13, 1988·19 cites·6 claims
- 0668US5532325AProcess for producing high stiffness polypropyleneCHISSO CORP·Filed 1995·Granted Jul 2, 1996·23 cites·6 claims
- 0768US4500682AHigh melt-viscoelastic polypropylene for post-processed sheets and for blow moldingCHISSO CORP·Filed 1983·Granted Feb 19, 1985·16 cites·4 claims
- 0867US4760113AProcess for continuously producing a high-melt viscoelastic ethylene-propylene copolymerCHISSO CORP·Filed 1986·Granted Jul 26, 1988·18 cites·2 claims
- 0967US4550144APropylene-ethylene copolymers for high-rigidity molded products and process for producing the sameCHISSO CORP·Filed 1983·Granted Oct 29, 1985·16 cites·10 claims
- 1066US4510292AEthylene-propylene copolymers for foaming and process for producing the sameCHISSO CORP·Filed 1983·Granted Apr 9, 1985·20 cites·4 claims
- 1165US4522994APolypropylene resin for high-rigidity molded productsCHISSO CORP·Filed 1982·Granted Jun 11, 1985·14 cites·3 claims
- 1261US4582878AHigh-rigidity ethylene-propylene copolymer and process for producing sameCHISSO CORP·Filed 1984·Granted Apr 15, 1986·20 cites·14 claims
- 1359US4499247AHigh-rigidity, high-melt-viscoelasticity polypropylene and process for producing the sameCHISSO CORP·Filed 1983·Granted Feb 12, 1985·12 cites·6 claims
- 1458US4970280AContinuous process for producing high molten viscoelastic polypropylene or ethylene-propylene copolymerCHISSO CORP·Filed 1988·Granted Nov 13, 1990·12 cites·5 claims
- 1542US4526931AWhitening-resistant, highly melt-viscoelastic ethylene-propylene copolymer and process for producing the sameCHISSO CORP·Filed 1984·Granted Jul 2, 1985·5 cites·11 claims
- 1641US5140062AContinuous process for producing high molten viscoelastic polypropylene of ethylene-propylene copolymerCHISSO CORP·Filed 1990·Granted Aug 18, 1992·5 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →