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Yasuharu Yoshii

TC Tokai Carbon Co.: 3 patents #10 of 112Top 9%
Overall (All Time): #1,654,731 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5320820 Carbon black for tire tread rubber Shinji Misono, Hitoshi Ue 1994-06-14
5198205 Carbon black for tire tread rubber Shinji Misono, Hitoshi Ue 1993-03-30
5162421 Rubber composition Hitoshi Ue, Shinji Misono 1992-11-10