HT

Hisashi Tomiya

SC Shinagawa Refractories Co.: 1 patents #73 of 162Top 50%
Overall (All Time): #3,249,317 of 4,157,543Top 80%
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Patent #TitleCo-InventorsDate
7939458 Refractory brick Ryosuke Nakamura, Hiroyuki Shikama, Hisaharu Sasaki 2011-05-10