Inventor

AKADA AKIHIKO

JP2 patents

Patents

2 patents

US5178667AJan 12, 1993

Dry process for refining zinc sulfide concentrates

SUMITOMO METAL MINING CO7 citations66

US5174746ADec 29, 1992

Method of operation of flash smelting furnace

SUMITOMO METAL MINING CO5 citations57