Inventor

OBANA YASUO

JP3 patents

Patents

3 patents

US5693120ADec 2, 1997

Production method for low carbon molten steel using vacuum degassing and decarburization treatment

NIPPON STEEL CORP4 citations57

US4661151AApr 28, 1987

Treating agent for desulfurizing molten steels and method for treating molten steels

NIPPON STEEL CORP2 citations56

US4358313ANov 9, 1982

Process for refining molten pig iron and steel

NIPPON STEEL CORP3 citations53