Patents by Inventor Jichen JIA

Jichen JIA 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).

  • Anisotropic bonded magnet and preparation method thereof
    Patent number: 12142403
    Abstract: An anisotropic bonded magnet and a preparation method thereof are provided. Through a method of stacking magnets which are different in content of SmFeN and/or have different densities, the magnets in the middle have high properties and the magnets at two ends and/or the periphery have low properties, thereby compensating for a property deviation caused by a difference in densities during a pressing process, and improving the property uniformity of the magnets in an axial direction. The method avoids the phenomenon of non-uniform magnetic field orientation and density in a height direction during orientation and densification as well as the phenomenon of low in the middle and high at two ends.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: November 12, 2024
    Assignees: GRIREM HI-TECH CO., LTD., GRIREM ADVANCED MATERIALS CO., LTD., Grirem (Rongcheng) Co., Ltd.
    Inventors: Yang Luo, Yuanfei Yang, Zilong Wang, Dunbo Yu, Jiajun Xie, Kaiwen Wu, Yifan Liao, Jichen Jia
  • ANISOTROPIC BONDED MAGNET AND PREPARATION METHOD THEREOF
    Publication number: 20210375512
    Abstract: An anisotropic bonded magnet and a preparation method thereof are provided. Through a method of stacking magnets which are different in content of SmFeN and/or have different densities, the magnets in the middle have high properties and the magnets at two ends and/or the periphery have low properties, thereby compensating for a property deviation caused by a difference in densities during a pressing process, and improving the property uniformity of the magnets in an axial direction. The method avoids the phenomenon of non-uniform magnetic field orientation and density in a height direction during orientation and densification as well as the phenomenon of low in the middle and high at two ends.
    Type: Application
    Filed: May 26, 2021
    Publication date: December 2, 2021
    Inventors: Yang LUO, Yuanfei YANG, Zilong WANG, Dunbo YU, Jiajun XIE, Kaiwen WU, Yifan LIAO, Jichen JIA