Xueqing ZHANG

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Shizuishan City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Tantalum powder and process for preparing the same, and sintered an...
- Patent number 10,513,769
- Issue date Dec 24, 2019
- Ningxia Orient Tantalum Industry Co., Ltd.
- Yuewei Cheng
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Valve metal particles uniformly containing nitrogen and the method...
- Patent number 8,238,078
- Issue date Aug 7, 2012
- Ningxia Orient Tantalum Industry Co., Ltd.
- Bin Li
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
TANTALUM POWDER AND PROCESS FOR PREPARING THE SAME, AND SINTERED AN...
- Publication number 20170226616
- Publication date Aug 10, 2017
- NINGXIA ORIENT TANTALUM INDUSTRY CO., LTD.
- Yuewei CHENG
- C21 - METALLURGY OF IRON
Information Patent Application
VALVE METAL PARTICLES UNIFORMLY CONTAINING NITROGEN AND THE METHOD...
- Publication number 20090180240
- Publication date Jul 16, 2009
- Bin LI
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...