HI

Hirohisa Ichihara

NS Nippon Steel: 1 patents #2,111 of 4,423Top 50%
Overall (All Time): #3,997,691 of 4,157,543Top 100%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4596913 Impeder for electric resistance tube welding Hiroshi Takechi, Mitsuo Yoshizawa, Hiroshi Nougata 1986-06-24