Yukito Io

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Kitakyushu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Structure of oxygen passage in steel converter vessel supporting tr...
- Patent number 4,387,884
- Issue date Jun 14, 1983
- Nippon Steel Corporation
- Masahiko Seki
- C21 - METALLURGY OF IRON
Information Patent Grant
Apparatus for supplying fluids to a converter
- Patent number 4,325,540
- Issue date Apr 20, 1982
- Nippon Steel Corporation
- Masahiko Seki
- C21 - METALLURGY OF IRON