Akinori Yoshizawa

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Nakano-Ku, Tokyo-To, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing superfine magnetic metal powder
- Patent number 4,948,422
- Issue date Aug 14, 1990
- Yoshizawa; Akinori
- Akinori Yoshizawa
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Process for producing superfines of metal
- Patent number 4,526,611
- Issue date Jul 2, 1985
- Toho Zinc Co., Ltd.
- Akinori Yoshizawa
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Process for producing fine powdery metal
- Patent number 4,383,852
- Issue date May 17, 1983
- Toho Aen Kabushiki Kaisha
- Akinori Yoshizawa
- B22 - CASTING POWDER METALLURGY