Patents by Inventor Kyu Yun Hwang

Kyu Yun Hwang 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).

  • Interior permanent magnet motor
    Patent number: 9787147
    Abstract: An interior permanent magnet motor includes a stator having teeth on which a coil is wound, a rotor rotatably provided inside the stator, the rotor including a plurality of rotor sectors, and at least two permanent magnet recesses formed between the rotor sectors. Ferrite permanent magnets are embedded in predetermined ones of the permanent magnet recesses that are formed in an inner portion of the rotor. Rare-earth permanent magnets are embedded in the other ones of the permanent magnet recesses that are formed in an outer portion of the rotor.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: October 10, 2017
    Assignee: Komotek Co., Ltd.
    Inventors: Deok Geun Kim, Han Sam Cho, Kyu Yun Hwang
  • Interior Permanent Magnet Motor
    Publication number: 20150028707
    Abstract: An interior permanent magnet motor includes a stator having teeth on which a coil is wound, a rotor rotatably provided inside the stator, the rotor including a plurality of rotor sectors, and at least two permanent magnet recesses formed between the rotor sectors. Ferrite permanent magnets are embedded in predetermined ones of the permanent magnet recesses that are formed in an inner portion of the rotor. Rare-earth permanent magnets are embedded in the other ones of the permanent magnet recesses that are formed in an outer portion of the rotor.
    Type: Application
    Filed: June 26, 2012
    Publication date: January 29, 2015
    Applicant: Komotek Co., Ltd.
    Inventors: Deok Geun Kim, Han Sam Cho, Kyu Yun Hwang