KU

Keiji Usuba

HI Hitachi: 7 patents #5,859 of 28,497Top 25%
HT Hitachi Communication Technologies: 1 patents #83 of 214Top 40%
Overall (All Time): #653,293 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8116263 Radio communication apparatus Akihiko Yoshida, Shiro Mazawa, Kiyoshi Kawamoto, Yosuke Takahashi 2012-02-14
8094600 Radio communication apparatus Akihiko Yoshida, Shiro Mazawa, Kiyoshi Kawamoto, Yosuke Takahashi 2012-01-10
8073381 Radio communication system and base station Akihiko Yoshida, Shiro Mazawa, Kiyoshi Kawamoto, Yosuke Takahashi 2011-12-06
7996033 Radio communication system and base station Akihiko Yoshida, Shiro Mazawa, Kiyoshi Kawamoto, Yosuke Takahashi 2011-08-09
7724724 Radio communication apparatus Akihiko Yoshida, Shiro Mazawa, Kiyoshi Kawamoto, Yosuke Takahashi 2010-05-25
7184661 Transmission equipment for network and network transmission system Yoshimi Nakagawa, Satoko Araki, Yusuke Yajima 2007-02-27
7054334 Pathsize control method and operation of transmission apparatus Yoshimi Nakagawa, Satoko Araki, Takao Iwata, Takeshi Sato 2006-05-30
6614754 Bi-directional line switched ring network system Masatoshi Takahashi, Mitsunobu Kimura, Seigo OBAYASHI, Takashi Mori 2003-09-02