YM

Youichi Murakami

TR Tris: 8 patents #1 of 42Top 3%
NS Nippon Soken: 1 patents #783 of 1,540Top 55%
NC Nippondenso Co.: 1 patents #1,765 of 3,479Top 55%
TC Taiho Kogyo Co.: 1 patents #179 of 332Top 55%
Overall (All Time): #382,690 of 4,157,543Top 10%
13
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9337599 Carbon brush for fuel pump and method for manufacturing same Makoto Nishio, Shinya Nakagawa, Kiyotoshi Oi, Takashi Fukutsuka, Ryouichi Honbo 2016-05-10
7883588 Pb-free bearing used for fuel-injection pump Hiromi Yokota, Daisuke Yoshitome, Hiroaki Hayakawa, Naruhiko Inayoshi, Masashi Suzuki +1 more 2011-02-08
7586230 Brush, commutator, and commutator device Hirotake Hamamatsu, Ryoichi Honbo, Kenzo Kiyose, Mitsuo Ikeda, Yoichi Sakaura +2 more 2009-09-08
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
6949863 Metal-graphite brush Takayoshi Otani, Osamu Takada, Toshio Ishikawa, Mitsuo Ikeda, Yoichi Sakaura +4 more 2005-09-27
6815862 Multilayer brush Kyoji Inukai, Yasuyuki Wakahara, 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
6700292 Metal-graphite brush Takayoshi Otani, Mitsuo Ikeda, Yoichi Sakaura, Takahiro Sakamoto, 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, Etsuo Kokuryu, Kenzo Kiyose, Keizo Takeuchi, Tokio Hotta +4 more 2004-01-06
6526949 Valve apparatus Naoki Kato, Kouichi Nagaya, Hiroyasu Kanamori 2003-03-04
6120257 Power transmission apparatus Manabu Saiki, Junichi Ohguchi, Hiroyasu Sakamoto, Yuuichi Aoki, Takashi Honda +2 more 2000-09-19
5879747 Composite material and process of producing same Yoshitaka Natsume, Yoshio Satou, Yoshio Miyata 1999-03-09