RK

Ryoji Kojima

SI Sumitomo Rubber Industries: 24 patents #58 of 1,637Top 4%
HC Hitachi Koki Co.: 6 patents #189 of 888Top 25%
HI Hitachi: 4 patents #8,942 of 28,497Top 35%
DE Dexerials: 2 patents #177 of 387Top 50%
SO Sony: 2 patents #12,963 of 25,231Top 55%
BH Brigham and Women's Hospital: 1 patents #847 of 1,764Top 50%
📍 Tochigi, MA: #3 of 8 inventorsTop 40%
Overall (All Time): #98,025 of 4,157,543Top 3%
35
Patents All Time

Issued Patents All Time

Showing 1–25 of 35 patents

Patent #TitleCo-InventorsDate
11261314 Pneumatic tire Tsuyoshi Tsuchida, Yukari TOMISAKI 2022-03-01
10967677 Pneumatic tire Suguru IZUMO 2021-04-06
10808082 Method for kneading a polymer Yukari TOMISAKI, Tsuyoshi Tsuchida, Ayaka KITAOU 2020-10-20
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
10071598 Studless winter tire 2018-09-11
9879109 Rubber composition for tires, tire member, and pneumatic tire Yuka Yokoyama, Masafumi Yoshino 2018-01-30
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
9318353 Method of manufacturing connection structure 2016-04-19
9190381 Connection method, connection structure, insulating adhesive member, electronic component having adhesive member, and method for manufacturing same 2015-11-17
9132698 Rubber composition for studless tire and studless tire using the same Takayuki Hattori, Naohiko Kikuchi 2015-09-15
8859660 Rubber composition for studless tire and studless tire using the same Takayuki Hattori, Naohiko Kikuchi 2014-10-14
8791197 Rubber composition for winter tire, and winter tire 2014-07-29
8754158 Studless tire for passenger vehicle Takayuki Hattori, Naohiko Kikuchi 2014-06-17
8592510 Rubber composition for studless tire and studless tire using thereof Naohiko Kikuchi 2013-11-26
8567462 Rubber composition for studless tire and studless tire 2013-10-29
8426508 Studless tire Takayuki Hattori, Naohiko Kikuchi, Yasuhisa Minagawa 2013-04-23
8329799 Rubber composition for studless tire and studless tire 2012-12-11
8293844 Rubber composition for cap tread and studless tire 2012-10-23
8119721 Tread rubber composition for studless tire and studless tire Naohiko Kikuchi 2012-02-21
8022121 Rubber composition for studless tire and studless tire Takayuki Hattori 2011-09-20
8022132 Rubber composition for studless tire and studless tire 2011-09-20
7919560 Rubber composition and studless tire obtained by using the rubber composition Takayuki Hattori, Naohiko Kikuchi 2011-04-05