Patents by Inventor Cailing Sun

Cailing Sun 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).

  • Preparation of permanent magnet material
    Patent number: 10269488
    Abstract: The present invention provides a method for preparing a permanent magnet material, the method comprising coating step and infiltrating step, wherein, coating a rare earth element-containing substance on the surface of a permanent magnet, the magnet having a thickness of 10 mm or less at least in one direction, then placing the magnet into a container, vacuuming to an atmospheric pressure of below 10 Pa, closing the passageway, and then heat treating the closed container. Using the method of the present invention enables the rare earth element to infiltrate homogeneously with a high permeability. In addition, the present invention may have a lower production cost, significantly increase coercive force of the permanent magnet material, but decrease the remanence very little.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: April 23, 2019
    Assignee: Tianhe (Baotou) Advanced Tech Magnet Co., Ltd.
    Inventors: Haibo Yi, Yi Dong, Shulin Diao, Yi Yuan, Shujie Wu, Cailing Sun, Juchang Miao, Ya Chen, Wenjie Yuan
  • PREPARATION OF PERMANENT MAGNET MATERIAL
    Publication number: 20170062127
    Abstract: The present invention provides a method for preparing a permanent magnet material, the method comprising coating step and infiltrating step, wherein, coating a rare earth element-containing substance on the surface of a permanent magnet, the magnet having a thickness of 10 mm or less at least in one direction, then placing the magnet into a container, vacuuming to an atmospheric pressure of below 10 Pa, closing the passageway, and then heat treating the closed container. Using the method of the present invention enables the rare earth element to infiltrate homogeneously with a high permeability. In addition, the present invention may have a lower production cost, significantly increase coercive force of the permanent magnet material, but decrease the remanence very little.
    Type: Application
    Filed: March 3, 2016
    Publication date: March 2, 2017
    Applicant: Tianhe (Baotou) Advanced Tech Magnet Co., Ltd.
    Inventors: Haibo Yi, Yi Dong, Shulin Diao, Yi Yuan, Shujie Wu, Cailing Sun, Juchang Miao, Ya Chen, Wenjie Yuan