Inventor
ICHIKAWA NAOYA
JP37 patents
⚠️ This page may combine multiple inventors who share the name “ICHIKAWA NAOYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO RUBBER IND
15 patentsUS8022136B2Sep 20, 2011
Vulcanized rubber composition, pneumatic tire and the process of producing the same
SUMITOMO RUBBER IND45 citations94
US8658730B2Feb 25, 2014
Rubber composition for tire, and pneumatic tire
SUMITOMO RUBBER IND21 citations92
US7371791B2May 13, 2008
Rubber composition and pneumatic tire using the same
SUMITOMO RUBBER IND35 citations92
US6864305B2Mar 8, 2005
Puncture sealing agent for a tire, and process for producing the same
SUMITOMO RUBBER IND21 citations92
US6462159B1Oct 8, 2002
Cationic deproteinized natural rubber latex, method of preparing the same, and treating agent used in the method
SUMITOMO RUBBER IND32 citations92
US8044118B2Oct 25, 2011
Preparation process of oil extended rubber for tire, oil extended rubber for tire, and rubber composition and tire using the same
SUMITOMO RUBBER IND28 citations89
US6512034B1Jan 28, 2003
Cationic graft-modified natural rubber latex
SUMITOMO RUBBER IND18 citations84
US8813798B2Aug 26, 2014
Rubber composition for tire, and pneumatic tire
SUMITOMO RUBBER IND17 citations83
US9410033B2Aug 9, 2016
Rubber composition for undertread, and pneumatic tire
SUMITOMO RUBBER IND11 citations82
US6265479B1Jul 24, 2001
Deproteinizing agent and method of preparing cationic deproteinized natural rubber latex using the same
SUMITOMO RUBBER IND10 citations74
US9758707B2Sep 12, 2017
Puncture sealing agent
SUMITOMO RUBBER IND4 citations73
US9334427B2May 10, 2016
Puncture sealing agent
SUMITOMO RUBBER IND1 citations52
US6784281B2Aug 31, 2004
Low allergenic natural rubber and method of preparing low allergenic natural rubber latex
SUMITOMO RUBBER IND0 citations52
US9617442B2Apr 11, 2017
Puncture sealing agent
SUMITOMO RUBBER IND0 citations42
US9657313B2May 23, 2017
Isoprene oligomer, polyisoprene, processes for producing these materials, rubber composition, and pneumatic tire
SUMITOMO RUBBER IND0 citations41
KAO CORP
8 patentsUS5610212AMar 11, 1997
Means for mechanically stabilizing deproteinized natural rubber latex
KAO CORP33 citations93
US6204358B1Mar 20, 2001
Process for producing deproteinized natural rubber using protease and anionic surfactant
KAO CORP19 citations92
US6797783B1Sep 28, 2004
Modified natural rubber
KAO CORP9 citations74
US6335407B1Jan 1, 2002
Deproteinized natural rubber and process for producing the same
KAO CORP11 citations74
US6239253B1May 29, 2001
Deproteinized natural rubber and process for producing the same
KAO CORP12 citations74
US5585459ADec 17, 1996
Process for producing raw rubber
KAO CORP17 citations74
US7172650B2Feb 6, 2007
Deproteinized natural rubber latex, method of preparing the same, rubber product using the same, and proteolytic agent for deproteinized natural rubber latex
KAO CORP1 citations52
US6943212B2Sep 13, 2005
Deproteinized natural rubber latex, method of preparing the same, rubber product using the same, and proteolytic agent for deproteinized natural rubber latex
KAO CORP1 citations52
ICHIKAWA NAOYA
3 patentsUS8183309B2May 22, 2012
Puncture sealant
ICHIKAWA NAOYA6 citations83
US8658728B2Feb 25, 2014
Natural rubber and method for producing the same, rubber composition and pneumatic tire using the same, modified natural rubber and method for producing the same, and rubber composition for tread or for covering carcass cord and pneumatic tire using the same
ICHIKAWA NAOYA9 citations81
US9181355B2Nov 10, 2015
Modified natural rubber, method for producing same, rubber composition, and pneumatic tire
ICHIKAWA NAOYA11 citations79
SAKAKI TOSHIAKI
3 patentsUS8809450B2Aug 19, 2014
Modified natural rubber, production method thereof, tire rubber composition, and pneumatic tire
SAKAKI TOSHIAKI7 citations82
US8633275B2Jan 21, 2014
Rubber composition for breaker and pneumatic tire
SAKAKI TOSHIAKI9 citations82
US8563628B2Oct 22, 2013
Preparation process of oil extended rubber for tire, oil extended rubber for tire, and rubber composition and tire using the same
SAKAKI TOSHIAKI5 citations80