Patents by Inventor Zekun TONG

Zekun TONG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • High-purity tantalum powder and preparation method thereof
    Patent number: 10737320
    Abstract: The present invention relates to a high-purity tantalum powder and a preparation method therefore. The tantalum powder has a purity of more than 99.995%, as analyzed by GDMS. Preferably, the tantalum powder has an oxygen content of not more than 1000 ppm, a nitrogen content of not more than 50 ppm, a hydrogen content of not more than 20 ppm, a magnesium content of not more than 5 ppm, and an average particle diameter D50 of less than 25 ?m.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: August 11, 2020
    Assignee: Ningxia Orient Tantalum Industry Co., Ltd.
    Inventors: Zhongxiang Li, Yuewei Cheng, Xueqing Chen, Ting Wang, Dejun Shi, Zekun Tong, Yan Yan, Xiaoyu Tian, Zhonghuan Zhao
  • HIGH-PURITY TANTALUM POWDER AND PREPARATION METHOD THEREOF
    Publication number: 20160354838
    Abstract: The present invention relates to a high-purity tantalum powder and a preparation method therefore. The tantalum powder has a purity of more than 99.995%, as analyzed by GDMS. Preferably, the tantalum powder has an oxygen content of not more than 1000 ppm, a nitrogen content of not more than 50 ppm, a hydrogen content of not more than 20 ppm, a magnesium content of not more than 5 ppm, and an average particle diameter D50 of less than 25 ?m.
    Type: Application
    Filed: February 27, 2014
    Publication date: December 8, 2016
    Inventors: Zhongxiang LI, YUEWEI CHENG, Xueqing CHEN, Ting WANG, Dejun SHI, Zekun TONG, Yan YAN, Xiaoyu TIAN, Zhonghuan ZHAO