JK

Junko Kurazumi

Bridgestone: 6 patents #390 of 2,860Top 15%
JS Jsr: 3 patents #346 of 1,137Top 35%
Overall (All Time): #744,829 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
8557915 Process for producing conjugated diene polymer, conjugated diene polymer, and rubber composition Takahiro Nakamura, Kouichirou Tani, Ryouji Tanaka, Takuo Sone, Toshihiro Tadaki +2 more 2013-10-15
8299184 Rubber composition for tire sidewall and tire Kouji Masaki 2012-10-30
8153723 Process for producing conjugated diene polymer, conjugated diene polymer, and rubber composition Takahiro Nakamura, Kouichirou Tani, Ryouji Tanaka, Takuo Sone, Toshihiro Tadaki +2 more 2012-04-10
8017695 Method for producing functionalized cis-1,4-polydienes having high cis-1,4-linkage content and high functionality Steven Luo, Yoichi Ozawa, Timothy L. Tartamella, Mark W. Smale, Kevin M. McCauley 2011-09-13
7968652 Modified conjugated diene copolymer, rubber compositions and tires Eiju Suzuki, Yoichi Ozawa 2011-06-28
7893153 Process for producing modified conjugated diene polymer, modified conjugated diene polymer obtained by the process, and rubber composition containing the same Ryouji Tanaka, Kouichirou Tani, Takuo Sone, Toshihiro Tadaki, Koji Masaki +1 more 2011-02-22
7691957 Butadiene-based polymer and method of producing the same as well as rubber composition and tire using the same Eiju Suzuki, Yoichi Ozawa, Tetsuya Ohmura 2010-04-06