RK

Ryoji Kojima

SI Sumitomo Rubber Industries: 3 patents #49 of 329Top 15%
📍 Tochigi, MA: #3 of 6 inventorsTop 50%
Overall (2019): #70,938 of 560,194Top 15%
3
Patents 2019

Issued Patents 2019

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10494515 Process for preparing vulcanized rubber composition, vulcanized rubber composition and studless tire using same Mikako Takenaka 2019-12-03
10336890 Rubber composition for studless winter tires, and studless winter tire 2019-07-02
10189974 Tire Mikako Takenaka 2019-01-29