Yiyi Ma

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Ohnojo-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Nickel composite particle and production process therefor
- Patent number 6,528,166
- Issue date Mar 4, 2003
- Shoei Chemical Inc.
- Yuji Akimoto
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Nickel composite particle and production process therefor
- Patent number 6,403,218
- Issue date Jun 11, 2002
- Shoei Chemical Inc.
- Yuji Akimoto
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Nickel powder and process for preparing the same
- Patent number 6,007,743
- Issue date Dec 28, 1999
- Shoei Chemical, Inc.
- Eiichi Asada
- B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents

Information Patent Application
Nickel composite particle and production process therefor
- Publication number 20020114950
- Publication date Aug 22, 2002
- SHOEI CHEMICAL INC.
- Yuji Akimoto
- B22 - CASTING POWDER METALLURGY