Yinghui MA

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NINGXIA, CN

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Patents Grantslast 30 patents

Information Patent Grant
Tantalum powder and preparation method therefor
- Patent number 11,534,830
- Issue date Dec 27, 2022
- Ningxia Orient Tantalum Industry Co., Ltd.
- Haiyan Ma
- B22 - CASTING POWDER METALLURGY
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

Patents Applicationslast 30 patents

Information Patent Application
TANTALUM POWDER AND PREPARATION METHOD THEREFOR
- Publication number 20210060654
- Publication date Mar 4, 2021
- Ningxia Orient Tantalum Industry Co., Ltd.
- Haiyan MA
- B22 - CASTING POWDER METALLURGY
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