TT

Takao Tamagawa

KC Koyo Seiko Co.: 5 patents #104 of 749Top 15%
Overall (All Time): #1,044,406 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6402658 Toroidal type continuously variable transmission Shinji Yasuhara, Kazuo Rokkaku, Shoji Eguchi, Yoshihiro Ono, Masao Goto 2002-06-11
6129643 Variable diameter pulley Toyohisa Asaji, Shinji Yasuhara, Yasuhiko Hasuda 2000-10-10
6017285 Variable diameter pulley Shinji Yasuhara 2000-01-25
5074825 Hydraulic transmission coupling apparatus Yoshiaki Hamasaki, Shuzo Hirakushi, Yoshihiro Nakagawa 1991-12-24
5056963 Tip for a cutting tool Ryoki Kameno, Yasuhito Tomochika, Yoshiki Fujimoto 1991-10-15