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Shizuishan, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Composite tantalum powder and process for preparing the same and ca...
Patent number
10,737,322
Issue date
Aug 11, 2020
Ningzia Orient Tanatum Industry Co., Ltd.
Guoqi Yang
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
High specific capacitance capacitor-grade tantalum powder with impr...
Patent number
10,074,486
Issue date
Sep 11, 2018
Ningxia Orient Tantalum Industry Co., Ltd.
Guoqi Yang
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
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
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
COMPOSITE TANTALUM POWDER AND PROCESS FOR PREPARING THE SAME AND CA...
Publication number
20170232509
Publication date
Aug 17, 2017
NINGXIA ORIENT TANTALUM INDUSTRY CO., LTD.
GUOQI YANG
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
HIGH SPECIFIC CAPACITANCE CAPACITOR-GRADE TANTALUM POWDER WITH IMPR...
Publication number
20160314904
Publication date
Oct 27, 2016
Ningxia Orient Tantalum Industry Co., Ltd.
Guoqi YANG
H01 - BASIC ELECTRIC ELEMENTS
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
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
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