SO

Seigo OBAYASHI

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #3,521,746 of 4,157,543Top 85%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6614754 Bi-directional line switched ring network system Keiji Usuba, Masatoshi Takahashi, Mitsunobu Kimura, Takashi Mori 2003-09-02