Keiji Fukuda

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Kitakyushu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of and apparatus for heat-treating rails
- Patent number 4,913,747
- Issue date Apr 3, 1990
- Nippon Steel Corporation
- Keiji Fukuda
- C21 - METALLURGY OF IRON
Information Patent Grant
Cooling apparatus for thick steel plate
- Patent number 4,591,133
- Issue date May 27, 1986
- Nippon Steel Corporation
- Masaki Umeno
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...