Toshiya Kunisaki

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Filter medium for molten metals
- Patent number 5,998,322
- Issue date Dec 7, 1999
- Mitsui Mining & Smelting Co., Ltd.
- Kazutomo Hoshino
- B22 - CASTING POWDER METALLURGY