Inventor

SUMIDA MORIHIRO

JP3 patents

Patents

3 patents

US4411696AOct 25, 1983

Steelmaking process with separate refining steps

NIPPON STEEL CORP1 citations60

US4388112AJun 14, 1983

Steelmaking process with separate refining steps

NIPPON STEEL CORP4 citations60

US4457778AJul 3, 1984

Steelmaking process with separate refining steps

NIPPON STEEL CORP0 citations49