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Dai Koyama

CC Central Japan Railway Comany: 1 patents #126 of 313Top 45%
Overall (All Time): #3,456,325 of 4,157,543Top 85%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6931995 Train maintenance automating system Toshio Yokonishi, Hisao Sawada, Kenjiro Fujii, Kazuhiro Makino 2005-08-23