SY

Susumu Yamakawa

MB Mitsuboshi Belting: 4 patents #60 of 333Top 20%
TO Toshiba: 1 patents #1,121 of 2,688Top 45%
Overall (All Time): #1,058,177 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5362280 Power transmission system Hideo Hirai, Kyoichi Mishima 1994-11-08
5195932 Compact coil spring tensioner Hideo Hirai, Masakatsu Ando, Yasuhiro Hashimoto, Naoki Fujimoto, Norikazu Tanaka 1993-03-23
4983145 Apparatus for automatically tensioning a drive belt Hideo Hirai, Masakatsu Ando, Yasuhiro Hashimoto, Naoki Fujimoto, Norikazu Tanaka 1991-01-08
4920788 Rotation variation testing machine Masakatsu Ando, Minori Kawaguchi 1990-05-01
4464786 System for identifying currency note Akihiro Nishito, Ko Ohtombe, Yasushi Nakamura 1984-08-07