HO

Hideyuki Okamoto

SC Sumitomo Metal Mining Co.: 1 patents #1 of 31Top 4%
Overall (1997): #140,921 of 185,788Top 80%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5702591 Flotation method for non-ferrous metal variable ores Hiroichi Miyashita, Ryoichi Nakayama 1997-12-30