YN

Yasuyuki Nakao

NS Nippon Steel: 1 patents #2,111 of 4,423Top 50%
Overall (All Time): #4,034,821 of 4,157,543Top 100%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4450005 Metal refining method Yosuke Hoshijima, Kazuo Okohira 1984-05-22