Hitoshi Kawata

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Prereduction furnace of a smelting reduction facility of iron ore
- Patent number 5,149,487
- Issue date Sep 22, 1992
- NKK Corporation
- Masahiro Matsuo
- C21 - METALLURGY OF IRON
Information Patent Grant
Prereduction furnace of a smelting reduction facility of iron ore
- Patent number 5,129,630
- Issue date Jul 14, 1992
- NKK Corporation
- Tatsuro Ariyama
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of charging chromium ores in a smelting reduction
- Patent number 4,935,054
- Issue date Jun 19, 1990
- NKK Corporation
- Haruyoshi Tanabe
- C21 - METALLURGY OF IRON