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Yuewei Cheng
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Shizuishan City, Ningxia, CN, CN
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Patents Grants
last 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
High-purity tantalum powder and preparation method thereof
Patent number
10,737,320
Issue date
Aug 11, 2020
Ningxia Orient Tantalum Industry Co., Ltd.
Zhongxiang Li
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
Information
Patent Grant
Method for preparing tantalum powder of capacitor grade with high n...
Patent number
9,764,388
Issue date
Sep 19, 2017
Ningxia Orient Tantalum Industry Co., Ltd.
Guoqi Yang
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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...
Information
Patent Grant
Methods for spherically granulating and agglomerating metal particl...
Patent number
7,666,247
Issue date
Feb 23, 2010
Ningxia Orient Tantalum Industry Co., Ltd.
Jilin He
B22 - CASTING POWDER METALLURGY
Patents Applications
last 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
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
FLAKED TANTALUM POWDER AND PREPARATION METHOD THEREOF
Publication number
20190308247
Publication date
Oct 10, 2019
NINGXIA ORIENT TANTALUM INDUSTRY CO., LTD.
Xueqing CHEN
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
Information
Patent Application
Process For Preparing Tantalum Powders For Use In An Electrolytic C...
Publication number
20170072462
Publication date
Mar 16, 2017
Ningxia Orient Tantalum Industry Co., Ltd.
Zhongxiang LI
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
HIGH-PURITY TANTALUM POWDER AND PREPARATION METHOD THEREOF
Publication number
20160354838
Publication date
Dec 8, 2016
Ningxia Orient Tantalum Industry Co., Ltd.
Zhongxiang LI
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR PREPARING TANTALUM POWDER OF CAPACITOR GRADE WITH HIGH N...
Publication number
20160059319
Publication date
Mar 3, 2016
Ningxia Orient Tantalum Industry Co., Ltd.
Guoqi YANG
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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...
Information
Patent Application
METHODS FOR SPHERICALLY GRANULATING AND AGGLOMERATING METAL PARTICL...
Publication number
20070193409
Publication date
Aug 23, 2007
Ningxia Orient Tantalum Industry Co., Ltd.
Jilin He
B22 - CASTING POWDER METALLURGY
Information
Patent Application
Methods for spherically granulating and agglomerating metal particl...
Publication number
20070068341
Publication date
Mar 29, 2007
Ningxia Orient Tantalum Industry Co., Ltd.
Yuewei Cheng
B22 - CASTING POWDER METALLURGY