Inventor
KUMAMOTO SHIN-ICHI
JP18 patents
⚠️ This page may combine multiple inventors who share the name “KUMAMOTO SHIN-ICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO CHEMICAL CO
17 patentsUS6100213AAug 8, 2000
Aluminum compound-containing solid catalyst component, catalyst for olefin polymerization and method for producing olefin polymer
SUMITOMO CHEMICAL CO17 citations92
US6903041B2Jun 7, 2005
Solid catalyst component and catalyst for olefin polymerization, and process for producing olefin polymer
SUMITOMO CHEMICAL CO17 citations91
US6333388B1Dec 25, 2001
Aluminum compound-containing solid catalyst component, catalyst for olefin polymerization and method for producing olefin polymer
SUMITOMO CHEMICAL CO10 citations73
US7879751B2Feb 1, 2011
Production process of olefin polymerization catalyst component, of olefin polymerization catalyst, and of olefin polymer
SUMITOMO CHEMICAL CO2 citations62
US7256151B2Aug 14, 2007
Solid catalyst component for α-olefin polymerization, process for producing catalyst therefor, and process for producing α-olefin polymer
SUMITOMO CHEMICAL CO2 citations62
US7049263B2May 23, 2006
Process for producing catalyst for α-olefin polymerization and process for producing α-olefin polymer
SUMITOMO CHEMICAL CO4 citations62
US6858685B2Feb 22, 2005
Solid catalyst component for olefin polymerization, process for producing the same, process for producing catalyst for olefin polymerization, and process for producing olefin polymer
SUMITOMO CHEMICAL CO4 citations62
US6680360B2Jan 20, 2004
Process for producing catalyst for α -olefin polymerization and process for producing α -olefin polymer
SUMITOMO CHEMICAL CO3 citations62
US6521725B2Feb 18, 2003
Process for producing catalyst for olefin polymerization and process for producing olefin polymer
SUMITOMO CHEMICAL CO2 citations62
US7960486B2Jun 14, 2011
Process for producing olefin polymer
SUMITOMO CHEMICAL CO3 citations58
US7897705B2Mar 1, 2011
Process for producing olefin polymer
SUMITOMO CHEMICAL CO6 citations58
US7732540B2Jun 8, 2010
Process for producing olefin copolymerization catalyst and process for producing olefin copolymer
SUMITOMO CHEMICAL CO2 citations58
US6538079B2Mar 25, 2003
Process for producing catalyst for ethylene polymerization and process for producing ethylene polymer
SUMITOMO CHEMICAL CO1 citations52
US7109142B2Sep 19, 2006
Solid catalyst component and catalyst for olefin polymerization, and process for producing olefin polymer
SUMITOMO CHEMICAL CO0 citations51
US7605215B2Oct 20, 2009
Process for producing olefin copolymerization catalyst and process for producing olefin copolymer
SUMITOMO CHEMICAL CO0 citations48
US7799866B2Sep 21, 2010
Method for producing propylene-ethylene block copolymer
SUMITOMO CHEMICAL CO0 citations40
US10428162B2Oct 1, 2019
Hydrogenation catalyst and process for producing olefin polymer
SUMITOMO CHEMICAL CO0 citations37