Membership
Tour
Register
Log in
Hiroyuki Koura
Follow
Person
Ichihara, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Process for producing ethylene-propylene block copolymer
Patent number
5,473,021
Issue date
Dec 5, 1995
Sumitomo Chemical Company, Limited
Hiroyuki Koura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for producing ethylene-propylene block copolymer
Patent number
5,449,738
Issue date
Sep 12, 1995
Sumitomo Chemical Company, Ltd.
Hiroyuki Koura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Gas distributor for use in gas phase polymerization apparatus
Patent number
5,381,827
Issue date
Jan 17, 1995
Sumitomo Chemical Company, Limited
Hiroyuki Koura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...