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Shizuishan City, CN
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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
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
Process for preparing tantalum powder for capacitors
Patent number
8,673,052
Issue date
Mar 18, 2014
Ningxia Orient Tantalum Industry Co., Ltd.
Wenfeng Shi
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing powder of niobium suboxides or niobium
Patent number
7,727,508
Issue date
Jun 1, 2010
Ningxia Orient Tantalum Industry Co., Ltd.
Wenfeng Shi
B22 - CASTING POWDER METALLURGY
Patents Applications
last 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
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
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
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
Process for Preparing Tantalum Powder for Capacitors
Publication number
20100326239
Publication date
Dec 30, 2010
Ningxia Orient Tantalum Industry Co., Ltd.
Wenfeng SHI
B22 - CASTING POWDER METALLURGY
Information
Patent Application
PROCESS FOR PREPARING POWDER OF NIOBIUM SUBOXIDES OR NIOBIUM
Publication number
20090053132
Publication date
Feb 26, 2009
Wenfeng SHI
B22 - CASTING POWDER METALLURGY