Inventor
HATTORI IWAKAZU
JP32 patents
⚠️ This page may combine multiple inventors who share the name “HATTORI IWAKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JSR CORP
12 patentsUS6194505B1Feb 27, 2001
Rubber composition for solid golf ball and solid golf ball
JSR CORP194 citations99
US7294680B2Nov 13, 2007
Method of producing conjugated diene polymers with narrow molecular weight distribution and polymer produced
JSR CORP135 citations97
US6838526B1Jan 4, 2005
Modified conjugated diene polymer and method of producing the same and rubber composition
JSR CORP116 citations97
US6255416B1Jul 3, 2001
Method of producing conjugated diene polymers
JSR CORP88 citations97
US6747085B2Jun 8, 2004
Conjugated diene polymer and rubber composition
JSR CORP21 citations92
US6130299AOct 10, 2000
Method for preparing conjugated diene polymer
JSR CORP43 citations92
US6191234B1Feb 20, 2001
Conjugated diolefin-based copolymer rubber and composition thereof
JSR CORP25 citations91
US6391990B1May 21, 2002
Method of producing conjugated diene polymer
JSR CORP32 citations90
US6838538B2Jan 4, 2005
Hydrogenated modified polymer, process for producing the same and composition containing the same
JSR CORP26 citations89
US6548598B2Apr 15, 2003
Thermoplastic resin composition
JSR CORP16 citations82
US6291596B1Sep 18, 2001
Catalyst and process for hydrogenating olefinically unsaturated compound
JSR CORP11 citations70
US6887929B2May 3, 2005
Resin composition and golf ball
JSR CORP0 citations48
JAPAN SYNTHETIC RUBBER CO LTD
11 patentsUS5064910ANov 12, 1991
Preparation of conjugated diene polymers modified with an organo-tin or germanium halide
JAPAN SYNTHETIC RUBBER CO LTD211 citations99
US4906706AMar 6, 1990
Modified conjugated diene polymer and process for production thereof
JAPAN SYNTHETIC RUBBER CO LTD201 citations99
US5017636AMay 21, 1991
Rubber compositions from modified trans-polybutadiene and rubber for tires
JAPAN SYNTHETIC RUBBER CO LTD94 citations96
US4894409AJan 16, 1990
Rubber composition
JAPAN SYNTHETIC RUBBER CO LTD103 citations96
US5206301AApr 27, 1993
Hydrogenated block copolymer and composition comprising the same
JAPAN SYNTHETIC RUBBER CO LTD40 citations92
US5086136AFeb 4, 1992
Process for producing high trans low vinyl conjugated diene (co)polymer
JAPAN SYNTHETIC RUBBER CO LTD41 citations92
US5432232AJul 11, 1995
Rubber compositions
JAPAN SYNTHETIC RUBBER CO LTD50 citations90
US5548045AAug 20, 1996
Process for producing polybutadiene
JAPAN SYNTHETIC RUBBER CO LTD49 citations89
US4933401AJun 12, 1990
Catalyst composition for polymerization of conjugated diene and process for producing conjugated diene polymer
JAPAN SYNTHETIC RUBBER CO LTD22 citations82
US4433109AFeb 21, 1984
Styrene-butadiene block copolymer
JAPAN SYNTHETIC RUBBER CO LTD23 citations82
US5527860AJun 18, 1996
Process for producing a diolefin polymer or copolymer and a rubber composition containing such a diolefin polymer or copolymer
JAPAN SYNTHETIC RUBBER CO LTD12 citations70
BRIDGESTONE CORP
6 patentsUS6992147B1Jan 31, 2006
Modified polymers prepared with lanthanide-based catalysts
BRIDGESTONE CORP178 citations99
US7750087B2Jul 6, 2010
Modified polymers prepared with lanthanide-based catalysts
BRIDGESTONE CORP18 citations92
US7642322B2Jan 5, 2010
Functionalized high cis-1,4-polybutadiene prepared using novel functionalizing agents
BRIDGESTONE CORP19 citations92
US5034465AJul 23, 1991
Rubber compositions
BRIDGESTONE CORP9 citations70
US9644052B2May 9, 2017
Functionalized high cis-1,4-polybutadiene prepared using novel functionalizing agents
BRIDGESTONE CORP0 citations51
US8987362B2Mar 24, 2015
Functionalized high cis-1,4-polybutadiene prepared using novel functionalizing agents
BRIDGESTONE CORP0 citations50