Keizi Arima

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Sakai, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for measuring slag-foam conditions within a co...
- Patent number 4,749,171
- Issue date Jun 7, 1988
- Nippon Steel Corporation
- Keizi Arima
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for operating a converter used for steel refining
- Patent number 4,651,976
- Issue date Mar 24, 1987
- Nippon Steel Corporation
- Keizi Arima
- C21 - METALLURGY OF IRON
Information Patent Grant
Exhaust-gas treatment system for a sealed-type converter
- Patent number 4,629,166
- Issue date Dec 16, 1986
- Nippon Steel Corporation
- Seishi Ogata
- C21 - METALLURGY OF IRON