Patents by Inventor Jeong Hui HONG

Jeong Hui HONG 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).

  • MAGNETIC FLUID SEAL
    Publication number: 20240175495
    Abstract: One embodiment of the present disclosure provides a magnetic fluid seal including a rotating shaft, a pole piece disposed to surround the rotating shaft, a plurality of trenches formed on any one of the rotating shaft and the pole piece, a magnetic fluid provided between the other one of the rotating shaft and the pole piece and at least one of ends of the plurality of trenches, a blocking member provided in a space between the plurality of trenches, and a permanent magnet configured to apply a magnetic force to the magnetic fluid.
    Type: Application
    Filed: November 28, 2022
    Publication date: May 30, 2024
    Applicant: MAGNEX CO., LTD.
    Inventors: Yong Woon KWAK, Jeong Hui HONG, Je In JEON, Gil Ho LEE