YH

Yasuhiro Hoshiyama

SC Shinagawa Refractories Co.: 1 patents #73 of 162Top 50%
Overall (All Time): #3,560,511 of 4,157,543Top 90%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6464932 Unburned carbon-containing refractory material and vessel for molten metal Osamu Nomura, Atsushi Torigoe 2002-10-15