Inventor

IYAMA YUKIO

JP3 patents

Patents

3 patents

US4353530AOct 12, 1982

Method and apparatus for automatically punching the tuyeres of a converter

NIPPON MINING CO9 citations68

US4303229ADec 1, 1981

Mechanical punching device for punching the tuyeres of a converter

NIPPON MINING CO3 citations57

US4389044AJun 21, 1983

Mechanical punching apparatus for copper smelting converter

NIPPON MINING CO1 citations47