TA

Tomoharu Ashikawa

JR Japanese National Railways: 1 patents #19 of 102Top 20%
TW The Japan Steel Works: 1 patents #307 of 643Top 50%
Overall (All Time): #3,956,457 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4760900 Friction brakes Takashi Shima, Katuro Takasawa, Taro Tsujimura, Yasuo Takenaka, Shunichi Tomizuka 1988-08-02