P

Inventor

SHIRAISHI HIROYUKI

JP34 patents
⚠️ This page may combine multiple inventors who share the name “SHIRAISHI HIROYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SUMITOMO CHEMICAL CO

12 patents
US5602223AFeb 11, 1997

Ethylene-α-olefin copolymer and a molded article therefor

SUMITOMO CHEMICAL CO21 citations90
US5700895ADec 23, 1997

Ethylene-α-olefin copolymer and molded article thereof

SUMITOMO CHEMICAL CO29 citations89
US6184319B1Feb 6, 2001

Olefin polymer, films or sheets made therefrom, and process for the production of olefin polymer

SUMITOMO CHEMICAL CO14 citations74
US5463000AOct 31, 1995

Process for producing olefin polymers

SUMITOMO CHEMICAL CO18 citations73
US5077250ADec 31, 1991

Olefin polymerization catalyst and process for producing ethylene copolymers

SUMITOMO CHEMICAL CO12 citations73
US6667375B1Dec 23, 2003

Ethylene-α-olefin copolymer and polyethylene composition

SUMITOMO CHEMICAL CO7 citations72
US6590021B2Jul 8, 2003

Polyolefin resin composition and film comprising the same

SUMITOMO CHEMICAL CO9 citations72
US5854164ADec 29, 1998

Method for preparing catalyst component for olefin polymerization, catalyst for olefin polymerization and process for producing olefin polymer with the catalyst

SUMITOMO CHEMICAL CO14 citations71
US5378778AJan 3, 1995

Liquid catalyst component, catalyst system containing the same, and process for producing ethylene-α-olefin copolymers using the catalyst system

SUMITOMO CHEMICAL CO6 citations63
US5258476ANov 2, 1993

Process for producing ethylene-α-olefin copolymers

SUMITOMO CHEMICAL CO5 citations62
US5508364AApr 16, 1996

Process for polymerizing ethylene at high temperature under high pressure

SUMITOMO CHEMICAL CO3 citations61
US5166280ANov 24, 1992

Olefin polymerization catalyst and process for producing ethylene copolymers

SUMITOMO CHEMICAL CO1 citations52

MITSUBISHI MATERIALS CORP

4 patents

TOSHIBA KK

3 patents

TOSHIBA TEC KK

3 patents

KUAD PAUL

2 patents

SUMITOMO HEAVY INDUSTRIES

1 patent

SUMITOMO METAL IND

1 patent

NAGAMOCHI KATSUYA

1 patent

SUBARU CORP

1 patent

UENO SUEO

1 patent

MITSUBISHI ELECTRIC CORP

1 patent

SHIMOKAWA KOJI

1 patent

SUMITOMO SEIKA CHEMICALS

1 patent

BANDO SEIJI

1 patent

SHIRAISHI HIROYUKI

1 patent