Patents by Inventor David Younghee Oh

David Younghee Oh 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).

  • Power train for deep space solar electric propulsion
    Patent number: 10954005
    Abstract: A spacecraft includes a power train that includes a solar array, an electric propulsion subsystem, and a power conversion module. The power conversion module receives power from the solar array at a voltage, Vi; and delivers power to the electric propulsion subsystem at a voltage, Vo. The spacecraft is configured to operate at a varying distance, D, from the sun within the range of Dmin to Dmax, Dmax being at least 1.3×Dmin. The solar array is configured to deliver power to the power conversion module at a voltage approximately equal to Vo when the spacecraft is proximate to Dmax.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: March 23, 2021
    Assignees: Space Systems/Loral, LLC, California Institute of Technology
    Inventors: Peter Warner Lord, Gregory Alan Carr, Jorge Delgado, Dan Michael Goebel, Bao Hoang, David Younghee Oh, Lee Charles Rotlisberger, Christopher Bryan Stell, Denis Trofimov