Hiroaki Ikenaga

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Yamaguchi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for production of invar alloy steel sheet material for shado...
- Patent number 6,306,229
- Issue date Oct 23, 2001
- Toyo Kohan Co., Ltd.
- Tsuneyuki Ide
- C21 - METALLURGY OF IRON