Patents by Inventor Kaiqiang Dong

Kaiqiang Dong 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).

  • Colorant and preparation method thereof
    Patent number: 11208561
    Abstract: The present invention discloses a rare-earth sulfide colorant and a preparation method thereof. The chemical formula of the rare-earth sulfide colorant of the present invention is RE2-2xS3-3x.2y [REPO4], wherein RE is selected from one or more of La, Ce, Pr, Nd and Sm, and the ratio of y to x is 0.001 to 0.65. The present invention also discloses use of a phosphorus-containing compound for increasing the vividness of a rare-earth sulfide colorant.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: December 28, 2021
    Assignee: Baotou Rare Earth Research and Development Center, Chinese Academy of Sciences
    Inventors: Chengyu Li, Hongjie Zhang, Lei Tian, Jianyi Chi, Ran Pang, Wei Jiang, Ming Wang, Bin Wang, Kaiqiang Dong
  • Colorant and Preparation Method Thereof
    Publication number: 20210102073
    Abstract: The present invention discloses a rare-earth sulfide colorant and a preparation method thereof. The chemical formula of the rare-earth sulfide colorant of the present invention is RE2-2xS3-3x.2y [REPO4], wherein RE is selected from one or more of La, Ce, Pr, Nd and Sm, and the ratio of y to x is 0.001 to 0.65. The present invention also discloses use of a phosphorus-containing compound for increasing the vividness of a rare-earth sulfide colorant.
    Type: Application
    Filed: August 9, 2017
    Publication date: April 8, 2021
    Inventors: Chengyu Li, Hongjie Zhang, Lei Tian, Jianyi Chi, Ran Pang, Wei Jiang, Ming Wang, Bin Wang, Kaiqiang Dong