The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 27, 2022
Filed:
Dec. 27, 2017
Ningxia Orient Tantalum Industry Co., Ltd., Shizuishan, CN;
Haiyan Ma, Shizuishan, CN;
Hui Li, Shizuishan, CN;
Guoqing Luo, Shizuishan, CN;
Yuewei Cheng, Shizuishan, CN;
Chunxia Zhao, Shizuishan, CN;
Xueqing Chen, Shizuishan, CN;
Zhidao Wang, Shizuishan, CN;
Fukun Lin, Shizuishan, CN;
Guoqi Yang, Shizuishan, CN;
Ning Wang, Shizuishan, CN;
Yinghui Ma, Shizuishan, CN;
Yanjie Wang, Shizuishan, CN;
Lijun Li, Shizuishan, CN;
Honggang Zhang, Shizuishan, CN;
NINGXIA ORIENT TANTALUM INDUSTRY CO., LTD, Shizuishan, CN;
Abstract
A tantalum powder, a tantalum powder compact, a tantalum powder sintered body, a tantalum anode, an electrolytic capacitor and a preparation method for tantalum powder. The tantalum powder contains boron element, and the tantalum powder has a specific surface area of greater than or equal to 4 m/g; the ratio of the boron content of the tantalum powder to the specific surface area of the tantalum powder is 2˜16; the boron content is measured in weight ppm, and the specific surface area is measured in m/g; Powder that can pass through a ρ-mesh screen in the tantalum powder accounts for over 85% of the total weight of the tantalum powder, where ρ=150˜170; and the tantalum powder with high CV has a low leakage current and dielectric loss, and good moldability.