Inventor · disambiguated record
Yoshiyuki Ishihama
Also filed as: ISHIHAMA YOSHIYUKI
19 granted patents·230 citations·filing 1996–2020
94Inventor score
Files withJAPAN POLYETHYLENE CORP9JAPAN POLYCHEM CORP4MITSUBISHI CHEM CORP3ISHIHAMA YOSHIYUKI1ITO MASAAKI1
Top patents by PatentIndex Score
19 records- 0194US10633471B2Ethylene-based polymer, polyethylene-based resin composition and use thereof, catalyst component for olefin polymerization, olefin polymerization catalyst containing the component, and method for producing ethylene-based polymer by using the catalystJAPAN POLYETHYLENE CORP·Filed 2018·Granted Apr 28, 2020·9 cites·4 claims
- 0290US9309340B2Ethylene-based polymer, polyethylene-based resin composition and use thereof, catalyst component for olefin polymerization, olefin polymerization catalyst containing the component, and method for producing ethylene-based polymer by using the catalystISHIHAMA YOSHIYUKI·Filed 2012·Granted Apr 12, 2016·18 cites·17 claims
- 0388US9963525B2Ethylene-α-olefin copolymer and olefin resin compositionJAPAN POLYETHYLENE CORP·Filed 2015·Granted May 8, 2018·3 cites·16 claims
- 0487US10066036B2Ethylene-α-olefin copolymer and olefin resin compositionJAPAN POLYETHYLENE CORP·Filed 2015·Granted Sep 4, 2018·3 cites·20 claims
- 0587US10066037B2Ethylene-α-olefin copolymer and olefin resin compositionJAPAN POLYETHYLENE CORP·Filed 2015·Granted Sep 4, 2018·3 cites·19 claims
- 0687US9975972B2Ethylene-based polymer, polyethylene-based resin composition and use thereof, catalyst component for olefin polymerization, olefin polymerization catalyst containing the component, and method for producing ethylene-based polymer by using the catalystJAPAN POLYETHYLENE CORP·Filed 2016·Granted May 22, 2018·2 cites·10 claims
- 0785US5928982ACatalyst for polymerizing an olefin and method for polymerizing the olefinMITSUBISHI CHEM CORP·Filed 1996·Granted Jul 27, 1999·46 cites·15 claims
- 0884US6943227B2Catalyst for olefin polymerization and method of polymerization of olefinJAPAN POLYPROPYLENE CORP·Filed 2002·Granted Sep 13, 2005·22 cites·12 claims
- 0982US8080624B2Propylene-based polymer, production method therefor, composition using the same, and application thereofITO MASAAKI·Filed 2008·Granted Dec 20, 2011·8 cites·14 claims
- 1079US5973084AMethod for polymerizing olefins using a novel catalystMITSUBISHI CHEM CORP·Filed 1998·Granted Oct 26, 1999·52 cites·12 claims
- 1176US11643485B2Ethylene-based polymer, polyethylene-based resin composition and use thereof, catalyst component for olefin polymerization, olefin polymerization catalyst containing the component, and method for producing ethylene-based polymer by using the catalystJAPAN POLYETHYLENE CORP·Filed 2019·Granted May 9, 2023·0 cites·12 claims
- 1271US6953831B2Ethylene polymersJAPAN POLYCHEM CORP·Filed 2001·Granted Oct 11, 2005·12 cites·11 claims
- 1367US11485808B2Metallocene compound, catalyst component for olefin polymerization and catalyst for olefin polymerization containing the same, and method for producing olefin polymer using catalyst for olefin polymerizationJAPAN POLYETHYLENE CORP·Filed 2020·Granted Nov 1, 2022·0 cites·14 claims
- 1463US6632911B1Ethylene/α-olefin copolymer and film made thereofJAPAN POLYCHEM CORP·Filed 2000·Granted Oct 14, 2003·9 cites·17 claims
- 1563US6353063B1Process for producing olefin polymerJAPAN POLYCHEM CORP·Filed 1999·Granted Mar 5, 2002·31 cites·11 claims
- 1662US10919994B2Metallocene compound, catalyst component for olefin polymerization and catalyst for olefin polymerization containing the same, and method for producing olefin polymer using catalyst for olefin polymerizationJAPAN POLYETHYLENE CORP·Filed 2017·Granted Feb 16, 2021·0 cites·14 claims
- 1751US6677411B2Component of catalyst for olefin polymerizationJAPAN POLYCHEM CORP·Filed 2001·Granted Jan 13, 2004·12 cites·14 claims
- 1843US10995167B2Metallocene compound, catalyst component for olefin polymerization and catalyst for olefin polymerization containing the same, and method for producing olefin polymer using catalyst for olefin polymerizationJAPAN POLYETHYLENE CORP·Filed 2017·Granted May 4, 2021·0 cites·13 claims
- 1928US6448356B1Ethylene-α-olefin copolymerMITSUBISHI CHEM CORP·Filed 2001·Granted Sep 10, 2002·0 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →