Hongjie Qin

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Shizuishan, CN

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Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PRODUCING TANTALUM POWDER FOR CAPACITORS BY REDUCING TAN...
- Publication number 20240198422
- Publication date Jun 20, 2024
- NINGXIA ORIENT TANTALUM INDUSTRY CO., LTD.
- Yuewei Cheng
- B22 - CASTING POWDER METALLURGY
Information Patent Application
METHOD FOR PRODUCING TANTALUM POWDER AND TANTALUM POWDER OBTAINED B...
- Publication number 20240157437
- Publication date May 16, 2024
- NINGXIA ORIENT TANTALUM INDUSTRY CO., LTD.
- Yuewei Cheng
- B22 - CASTING POWDER METALLURGY
Information Patent Application
LOW-CARBON HIGH-PURITY TANTALUM PENTOXIDE POWDER AND PREPARATION ME...
- Publication number 20240150194
- Publication date May 9, 2024
- NINGXIA ORIENT TANTALUM INDUSTRY CO., LTD.
- Shun Guo
- C01 - INORGANIC CHEMISTRY