Inventor
ISHIHAMA YOSHIYUKI
JP19 patents
⚠️ This page may combine multiple inventors who share the name “ISHIHAMA YOSHIYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JAPAN POLYETHYLENE CORP
9 patentsUS10633471B2Apr 28, 2020
Ethylene-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 catalyst
JAPAN POLYETHYLENE CORP9 citations81
US10066037B2Sep 4, 2018
Ethylene-α-olefin copolymer and olefin resin composition
JAPAN POLYETHYLENE CORP3 citations70
US10066036B2Sep 4, 2018
Ethylene-α-olefin copolymer and olefin resin composition
JAPAN POLYETHYLENE CORP3 citations70
US9975972B2May 22, 2018
Ethylene-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 catalyst
JAPAN POLYETHYLENE CORP2 citations70
US9963525B2May 8, 2018
Ethylene-α-olefin copolymer and olefin resin composition
JAPAN POLYETHYLENE CORP3 citations70
US11485808B2Nov 1, 2022
Metallocene compound, catalyst component for olefin polymerization and catalyst for olefin polymerization containing the same, and method for producing olefin polymer using catalyst for olefin polymerization
JAPAN POLYETHYLENE CORP0 citations61
US10919994B2Feb 16, 2021
Metallocene compound, catalyst component for olefin polymerization and catalyst for olefin polymerization containing the same, and method for producing olefin polymer using catalyst for olefin polymerization
JAPAN POLYETHYLENE CORP0 citations61
US11643485B2May 9, 2023
Ethylene-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 catalyst
JAPAN POLYETHYLENE CORP0 citations59
US10995167B2May 4, 2021
Metallocene compound, catalyst component for olefin polymerization and catalyst for olefin polymerization containing the same, and method for producing olefin polymer using catalyst for olefin polymerization
JAPAN POLYETHYLENE CORP0 citations50
JAPAN POLYCHEM CORP
4 patentsUS6353063B1Mar 5, 2002
Process for producing olefin polymer
JAPAN POLYCHEM CORP31 citations90
US6953831B2Oct 11, 2005
Ethylene polymers
JAPAN POLYCHEM CORP12 citations80
US6677411B2Jan 13, 2004
Component of catalyst for olefin polymerization
JAPAN POLYCHEM CORP12 citations69
US6632911B1Oct 14, 2003
Ethylene/α-olefin copolymer and film made thereof
JAPAN POLYCHEM CORP9 citations67
MITSUBISHI CHEM CORP
3 patentsUS5973084AOct 26, 1999
Method for polymerizing olefins using a novel catalyst
MITSUBISHI CHEM CORP52 citations95
US5928982AJul 27, 1999
Catalyst for polymerizing an olefin and method for polymerizing the olefin
MITSUBISHI CHEM CORP46 citations95
US6448356B1Sep 10, 2002
Ethylene-α-olefin copolymer
MITSUBISHI CHEM CORP0 citations40