RK

Ryoji Kojima

SI Sumitomo Rubber Industries: 2 patents #24 of 155Top 20%
📍 Tochigi, MA: #4 of 6 inventorsTop 70%
Overall (2017): #110,126 of 506,227Top 25%
2
Patents 2017

Issued Patents 2017

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9695302 Rubber composition for studless winter tires, and studless winter tire 2017-07-04
9657121 Rubber composition for tire, tire member, method for producing biomass-derived rubber, and pneumatic tire Yuka Yokoyama 2017-05-23