RK

Ryozo Kuramoto

OC Onoda Cement Co.: 1 patents #57 of 155Top 40%
Overall (All Time): #3,802,223 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5330573 Molding of calcium silicate having high strength and its manufacturing method Masayuki Nakano, Shigeo Otozaki, Katsuaki Kaneko, Hideo Shibasaki, Noritoshi Tamura 1994-07-19