Inventor · disambiguated record
Hisayoshi Yanagihara
Also filed as: YANAGIHARA HISAYOSHI
12 granted patents·190 citations·filing 1990–2009
92Inventor score
Top patents by PatentIndex Score
12 records- 0182US8278470B2Method for producing trialkyl galliumYANAGIHARA HISAYOSHI·Filed 2009·Granted Oct 2, 2012·14 cites·5 claims
- 0278US5760141APropylene block copolymer, process for preparation thereof and propylene resin composition comprising sameJAPAN POLYOLEFINS CO LTD·Filed 1996·Granted Jun 2, 1998·35 cites·9 claims
- 0376US6323298B1Propylene-based polymer, method for its production, composition thereof, catalyst component for polymerization, and method for its productionSHOWA DENKO KK·Filed 2000·Granted Nov 27, 2001·13 cites·11 claims
- 0476US6184328B1Propylene-based polymer, method for its production, composition thereof, catalyst component for polymerization, and method for its productionSHOWA DENKO KK·Filed 1998·Granted Feb 6, 2001·30 cites·4 claims
- 0575US5208302ACatalyst, process for preparation of same and process for polymerization of olefins using sameSHOWA DENKO KK·Filed 1991·Granted May 4, 1993·29 cites·5 claims
- 0662US5916990APropylene-based polymer, method of its production, composition thereof, catalyst component for polymerization, and method for its productionSHOWA DENKO KK·Filed 1994·Granted Jun 29, 1999·14 cites·4 claims
- 0761US5684099APropylene block copolymer, process for producing the same, and resin composition comprising the sameSHOWA DENKO KK·Filed 1995·Granted Nov 4, 1997·17 cites·6 claims
- 0858US7667063B2Method for producing trialkyl galliumNICHIA CORP·Filed 2006·Granted Feb 23, 2010·1 cites·19 claims
- 0958US5703172APropylene block copolymer and process for producing the sameSHOWA DENKO KK·Filed 1995·Granted Dec 30, 1997·14 cites·5 claims
- 1055US5804665APropylene block copolymer and process for producing the sameSHOWA DENKO KK·Filed 1997·Granted Sep 8, 1998·12 cites·6 claims
- 1143US5885920AProcess for producing catalyst carrier for olefin polymerizationJAPAN POLYOLEFINS CO LTD·Filed 1995·Granted Mar 23, 1999·7 cites·4 claims
- 1238US5049533ACatalyst, process for preparation of same, and process for polymerization of olefins using sameSHOWA DENKO KK·Filed 1990·Granted Sep 17, 1991·4 cites·13 claims
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