Inventor
KAITA SHOJIRO
JP48 patents
⚠️ This page may combine multiple inventors who share the name “KAITA SHOJIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BRIDGESTONE CORP
23 patentsUS7511108B2Mar 31, 2009
Pneumatic tire
BRIDGESTONE CORP7 citations73
US10087312B2Oct 2, 2018
Rubber composition and tire containing rubber composition
BRIDGESTONE CORP2 citations72
US9365666B2Jun 14, 2016
Polymerization catalyst composition, method for producing synthetic polyisoprene, and synthetic polyisoprene
BRIDGESTONE CORP5 citations72
US11472907B2Oct 18, 2022
Polymerization catalyst composition, polymer manufacturing method, polymer, rubber composition, and tire
BRIDGESTONE CORP2 citations71
US10053530B2Aug 21, 2018
Method for producing a multicomponent copolymer
BRIDGESTONE CORP4 citations71
US10131722B2Nov 20, 2018
Method for preparing terminal-modified conjugated diene polymer, terminal-modified conjugated diene polymer, rubber composition and tire
BRIDGESTONE CORP4 citations70
US12247091B2Mar 11, 2025
Laminate and product
BRIDGESTONE CORP0 citations62
US7919571B2Apr 5, 2011
Polybutadiene as well as rubber composition using the same and tire
BRIDGESTONE CORP6 citations62
US12084536B2Sep 10, 2024
Polybutadiene, method of producing polybutadiene, polybutadiene composition, tire, and resin member
BRIDGESTONE CORP0 citations61
US10239964B2Mar 26, 2019
Method for manufacturing conjugated diene polymer, conjugated diene polymer, rubber composition, and tire
BRIDGESTONE CORP1 citations60
US9346907B2May 24, 2016
Method for producing copolymer
BRIDGESTONE CORP0 citations52
US10875937B2Dec 29, 2020
Terminal-modified conjugated diene polymer, rubber composition and rubber article
BRIDGESTONE CORP0 citations51
US9796801B2Oct 24, 2017
Polymerization catalyst composition, method for producing synthetic polyisoprene, and synthetic polyisoprene
BRIDGESTONE CORP1 citations51
US9777101B2Oct 3, 2017
Isoprene copolymer and method of producing the same
BRIDGESTONE CORP0 citations51
US9714338B2Jul 25, 2017
Method for manufacturing polymer composition and the polymer composition
BRIDGESTONE CORP0 citations51
US9540464B2Jan 10, 2017
Polymer and method for producing same, rubber composition containing polymer, and tire having rubber composition
BRIDGESTONE CORP0 citations51
US9499647B2Nov 22, 2016
Polymer, rubber composition containing polymer, crosslinked rubber composition obtained by crosslinking rubber composition, and tire having crosslinked rubber composition
BRIDGESTONE CORP0 citations51
US12152096B2Nov 26, 2024
Method for manufacturing copolymer
BRIDGESTONE CORP0 citations50
US11279785B2Mar 22, 2022
Production method for copolymer, copolymer, rubber composition, and tire
BRIDGESTONE CORP0 citations50
US10793658B2Oct 6, 2020
Multi-component copolymer, rubber composition, crosslinked rubber composition, rubber product, and tire
BRIDGESTONE CORP0 citations48
US10875952B2Dec 29, 2020
Multi-component copolymer, rubber composition, crosslinked rubber composition, rubber product and tire
BRIDGESTONE CORP0 citations47
US9284384B2Mar 15, 2016
Method for producing polymerization catalyst composition, polymerization catalyst composition, method for producing polymer composition, and polymer composition
BRIDGESTONE CORP0 citations42
US9938362B2Apr 10, 2018
Isoprene polymerization catalyst composition, method for producing synthetic polyisoprene, and synthetic polyisoprene
BRIDGESTONE CORP0 citations41
KAITA SHOJIRO
8 patentsUS9074035B2Jul 7, 2015
Copolymer of conjugated diene compound and non-conjugated olefin, rubber composition, cross-linked rubber composition and tire
KAITA SHOJIRO7 citations83
US8962743B2Feb 24, 2015
Copolymer of conjugated diene compound and non-conjugated olefin, rubber composition and tire
KAITA SHOJIRO12 citations83
US8653290B2Feb 18, 2014
Metallocene complex and polymerization catalyst composition containing the same
KAITA SHOJIRO15 citations83
US8969496B2Mar 3, 2015
Method for controlling chain structure of copolymer
KAITA SHOJIRO4 citations73
US9266978B2Feb 23, 2016
Copolymer and method of manufacturing the same
KAITA SHOJIRO5 citations72
US8853339B2Oct 7, 2014
Method for producing copolymer
KAITA SHOJIRO3 citations62
US8163860B2Apr 24, 2012
Norbornene copolymer and production method thereof
KAITA SHOJIRO5 citations60
US9688798B2Jun 27, 2017
Method for manufacturing a hydroxy group terminated olefin or conjugated diene polymer
KAITA SHOJIRO0 citations40
HORIKAWA YASUO
7 patentsUS8962744B2Feb 24, 2015
Copolymer, rubber composition, crosslinked rubber composition and tire
HORIKAWA YASUO8 citations83
US9701776B2Jul 11, 2017
Copolymer, rubber composition, crosslinked rubber composition and tire
HORIKAWA YASUO2 citations72
US9670302B2Jun 6, 2017
Copolymer, rubber composition, crosslinked rubber composition, and tire
HORIKAWA YASUO4 citations72
US9181376B2Nov 10, 2015
Copolymer, rubber composition, crosslinked rubber composition, and tire
HORIKAWA YASUO6 citations72
US9139680B2Sep 22, 2015
Copolymer, rubber composition, crosslinked rubber composition, and tire
HORIKAWA YASUO4 citations72
US9056936B2Jun 16, 2015
Copolymer of a conjugated diene compound and a non-conjugated olefin, rubber composition, crosslinked rubber composition, and tire
HORIKAWA YASUO6 citations72
US8987347B2Mar 24, 2015
Copolymer of conjugated diene compound and non-conjugated olefin, rubber composition, rubber composition for tire tread, crosslinked rubber composition, and tire
HORIKAWA YASUO2 citations62
RIKEN
6 patentsUS6596828B1Jul 22, 2003
Catalyst composition
RIKEN35 citations92
US7196031B2Mar 27, 2007
Catalyst composition
RIKEN7 citations73
US7148299B2Dec 12, 2006
Polymerization catalyst
RIKEN8 citations73
US6683140B2Jan 27, 2004
Catalyst for polymerization
RIKEN9 citations73
US6960631B2Nov 1, 2005
Catalyst composition and process for producing copolymer
RIKEN4 citations57
US7056994B2Jun 6, 2006
Catalyst composition
RIKEN0 citations41