Kyouji Tominaga

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Niwa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Material for mold and process of forming mold by using this material
- Patent number 5,177,140
- Issue date Jan 5, 1993
- Asahi Yukizai Kogyo Co. Ltd.
- Fumiyuki Ogawa
- B22 - CASTING POWDER METALLURGY