HS

Hiroko Sekiya

SC Sumitomo Metal Mining Co.: 1 patents #385 of 736Top 55%
Overall (All Time): #3,873,846 of 4,157,543Top 95%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5006388 Magnetic disc Ryuichi Kuzuo, Atsushi Kawamoto, Junya Tada, Kenji Ohmori 1991-04-09