Xiaoyan Yang

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Shizuishan, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method for preparing a tantalum powder
- Patent number 9,199,307
- Issue date Dec 1, 2015
- Ningxia Orient Tantalum Industry Co., Ltd.
- Guoqi Yang
- B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PREPARING A TANTALUM POWDER
- Publication number 20120291593
- Publication date Nov 22, 2012
- Ningxia Orient Tantalum Industry Co., Ltd.
- Guoqi Yang
- B22 - CASTING POWDER METALLURGY
Information Patent Application
TANTALUM POWDER, METHOD FOR PREPARING THE SAME, AND ELECTROLYTIC CA...
- Publication number 20100226070
- Publication date Sep 9, 2010
- Guoqi Yang
- B22 - CASTING POWDER METALLURGY