YS

Yoichi Sakaura

TR Tris: 8 patents #1 of 42Top 3%
DE Denso: 6 patents #2,220 of 11,792Top 20%
Overall (All Time): #658,482 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7586230 Brush, commutator, and commutator device Hirotake Hamamatsu, Youichi Murakami, Ryoichi Honbo, Kenzo Kiyose, Mitsuo Ikeda +2 more 2009-09-08
7294166 Metal-graphite brush Takayoshi Otani, Mitsuo Ikeda, Naoki Morita, Kyoji Inukai, Youichi Murakami +2 more 2007-11-13
6949863 Metal-graphite brush Takayoshi Otani, Osamu Takada, Toshio Ishikawa, Mitsuo Ikeda, Naoki Morita +4 more 2005-09-27
6758881 Metal-graphite brush and production method thereof Takayoshi Otani, Osamu Takada, Mitsuo Ikeda, Naoki Morita, Takahiro Sakamoto +5 more 2004-07-06
6755882 Metal-graphite brush Takayoshi Otani, Toshio Ishikawa, Mitsuo Ikeda, Naoki Morita 2004-06-29
6700292 Metal-graphite brush Takayoshi Otani, Mitsuo Ikeda, Takahiro Sakamoto, Youichi Murakami, Kyoji Inukai +2 more 2004-03-02
6674212 Current-carrying member for a direct-current motor in a fuel pump, method for producing the same, and fuel pump Kyoji Inukai, Youichi Murakami, Etsuo Kokuryu, Kenzo Kiyose, Keizo Takeuchi +4 more 2004-01-06
6259183 Carbon commutator Tokio Hotta, Noboru Yoshikawa 2001-07-10