Patents by Inventor Jeihoon Baek

Jeihoon Baek 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).

  • Rotor having multiple permanent-magnet pieces in a cavity
    Patent number: 7504754
    Abstract: A rotor for an electric machine includes a rotor core constructed of magnetically-permeable material. The rotor core may include a first cavity having a first curved end portion and a second cavity having a first curved end portion disposed adjacent the first curved end portion of the first cavity. The rotor may also include a permanent-magnet cluster. The permanent-magnet cluster may include a permanent-magnet layer that substantially magnetically isolates a portion of the rotor core disposed inside the permanent-magnet cluster from portions of the rotor core disposed outside the permanent-magnet cluster. The permanent-magnet layer may include one or more permanent-magnet pieces disposed in the first cavity and one or more permanent-magnet pieces disposed in the second cavity.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: March 17, 2009
    Assignees: Caterpillar Inc., Wisconsin Alumni Research Foundation
    Inventors: Thomas Merlin Jahns, Mustafa K. Guven, Metin Aydin, Ayman Mohamed Fawzi EL-Refaie, Seok Hee Han, Jeihoon Baek
  • Device having permanent-magnet pieces
    Publication number: 20070096578
    Abstract: A rotor for an electric machine includes a rotor core constructed of magnetically-permeable material. The rotor core may include a first cavity having a first curved end portion and a second cavity having a first curved end portion disposed adjacent the first curved end portion of the first cavity. The rotor may also include a permanent-magnet cluster. The permanent-magnet cluster may include a permanent-magnet layer that substantially magnetically isolates a portion of the rotor core disposed inside the permanent-magnet cluster from portions of the rotor core disposed outside the permanent-magnet cluster. The permanent-magnet layer may include one or more permanent-magnet pieces disposed in the first cavity and one or more permanent-magnet pieces disposed in the second cavity.
    Type: Application
    Filed: October 31, 2005
    Publication date: May 3, 2007
    Inventors: Thomas Jahns, Mustafa Guven, Metin Aydin, Ayman EL-Refaie, Seok Han, Jeihoon Baek