Nobuo Ohtsuka

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Suita, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cobalt recovery method
- Patent number 4,908,462
- Issue date Mar 13, 1990
- Starloy Industrial Co., Ltd.
- Nobuo Ohtsuka
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...