Kouichi Ito

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Patch for preventing carburization, nitriding or oxidation, and met...
- Patent number 5,330,813
- Issue date Jul 19, 1994
- Kabushiki Kaisha Nard Kenkyusho
- Kouichi Hirooka
- C21 - METALLURGY OF IRON