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Sumio Nagai

KC Kyoraku Co.: 1 patents #76 of 136Top 60%
Overall (All Time): #2,990,577 of 4,157,543Top 75%
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Patent #TitleCo-InventorsDate
9283895 Sandwich panel, method of forming core material for sandwich panel, and method of forming sandwich panel Takehiko Sumi, Tadatoshi Tanji 2016-03-15