YT

Yoshitaka Tomiyama

JC Japan Powder Metallurgy Co.: 2 patents #1 of 20Top 5%
AC Across Co.: 1 patents #11 of 25Top 45%
RI Railway Technical Research Institute: 1 patents #70 of 233Top 35%
Overall (All Time): #2,222,634 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6183667 Titanium-and copper-containing carbon composite material and process for the production thereof Shunichi Kubo, Jitsuji Ikeuchi, Hiroshi Tsuchiya, Kojiro Saito, Yoshinobu Morita +2 more 2001-02-06
5964334 Wet friction contact device Koji Shimoda, Teikou Oobucht, Satoru Nakano 1999-10-12