Patents by Inventor Dal-Joong Kim

Dal-Joong Kim 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).

  • Elliptical Unit Block for Preparing Core Using Soft Magnetic Metal Powder and Magnetic Powder Core Prepared Using The Same
    Publication number: 20140218144
    Abstract: The present invention relates to an elliptical unit block for preparing a core using soft magnetic metal powder and a core with excellent high current DC bias characteristics using the same, and more specifically, to an elliptical unit block for preparing a core using soft magnetic metal powder used in an inductor for an automotive electronic sub-assembly using a high current buck or boost inductor or a three phase line reactor or fuel cell system for power factor correction (PFC), and a powered magnetic core prepared using the same.
    Type: Application
    Filed: September 5, 2012
    Publication date: August 7, 2014
    Applicant: CHANG SUNG CO.
    Inventors: Jae-Yeol Park, Dal-Joong Kim, Bong-Gi Yoo, Gu-Hyun Kim, Kwang-Yong Yoo