YW

Yasuyuki Wakahara

DE Denso: 20 patents #415 of 11,792Top 4%
TR Tris: 5 patents #6 of 42Top 15%
NO Nippon Oil: 1 patents #392 of 773Top 55%
NC Nippondenso Co.: 1 patents #1,765 of 3,479Top 55%
Overall (All Time): #211,497 of 4,157,543Top 6%
21
Patents All Time

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDate
7294166 Metal-graphite brush Takayoshi Otani, Mitsuo Ikeda, Yoichi Sakaura, Naoki Morita, Kyoji Inukai +2 more 2007-11-13
7067951 Copper-graphite brush Takayoshi Otani, Masakiyo Shimada, Hirotada Kanagawa, Yukinobu Isoda, Kyoji Inukai +3 more 2006-06-27
7038563 Electromagnetic switch for starter Kazuhiro Andoh, Masahiro Katoh, Shinji Usami, Tetsunori Inoguchi 2006-05-02
6949863 Metal-graphite brush Takayoshi Otani, Osamu Takada, Toshio Ishikawa, Mitsuo Ikeda, Yoichi Sakaura +4 more 2005-09-27
6887160 Shock absorber Mikio Saito, Masahiro Katoh, Kiyokazu Haruno 2005-05-03
6819005 Chemical treatment of helical splines in starter Tomoyuki Yamaguchi 2004-11-16
6815862 Multilayer brush Kyoji Inukai, Youichi Murakami, Masami Niimi, Teruo Kobayashi, Hiroaki Kawamura +1 more 2004-11-09
6758881 Metal-graphite brush and production method thereof Takayoshi Otani, Osamu Takada, Mitsuo Ikeda, Yoichi Sakaura, Naoki Morita +5 more 2004-07-06
6724124 Rotary electric machine having collar for restricting coil end expansion Masami Niimi 2004-04-20
6700292 Metal-graphite brush Takayoshi Otani, Mitsuo Ikeda, Yoichi Sakaura, Takahiro Sakamoto, Youichi Murakami +2 more 2004-03-02
6667281 Grease composition Syouzou Ikejima, Hirotugu Kinoshita, Kiyomi Sakamoto 2003-12-23
6647812 Starter motor having intermediate gear Kuniaki Nito, Shinji Ando 2003-11-18
6612191 Starter with driving lever having lever pin Tetsuo Imanishi 2003-09-02
6572479 Shock absorber Mikio Saito, Masahiro Katoh 2003-06-03
6570283 Rotary electric machine Masami Niimi 2003-05-27
6528923 Rotary electric machine with stacked brush Masahiro Katoh, Masami Niimi 2003-03-04
6486762 Magnetic switch for starter motor Tadahiro Kurasawa, Kazuhiro Andoh 2002-11-26
6417588 Lead wire unit of DC rotary electric machine Masami Niimi, Masahiro Kato 2002-07-09
6404310 Magnet switch having metal-molded resinous switch cover Kazuhiro Ando, Masahiro Kato 2002-06-11
6371167 Drain pipe for draining water or the like from casing Akifumi Hosoya 2002-04-16
4673838 Brush holding device for rotating electrical machines Yoshito Takagi, Satoru Hamano, Masanori Mori, Masayuki Hamaguchi, Naoki Yoshikawa 1987-06-16