OE

Osamu Egawa

DT Daido Tokushuko: 1 patents #152 of 382Top 40%
Overall (All Time): #3,801,745 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5328658 Method of refining chromium-containing steel Yoshihiro Naito, Hitoshi Sakuma 1994-07-12