EK

Eiji Kouyama

SI Sumitomo Heavy Industries: 1 patents #424 of 917Top 50%
Overall (All Time): #2,605,515 of 4,157,543Top 65%
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Patent #TitleCo-InventorsDate
11752536 Expansion forming apparatus Kei Yamauchi, Kiyomasa Koukami 2023-09-12