Yasuho Imai

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
High toughness, ultra-high strength steel having an excellent stres...
- Patent number 4,814,141
- Issue date Mar 21, 1989
- Japan as Represented by Director General, Technical Research and Development...
- Yasuho Imai
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...