Patents by Inventor Keon Woo Park

Keon Woo Park 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).

  • Air mobility device using compressed air
    Patent number: 11919632
    Abstract: An air mobility device improves propulsion due to the Coand? effect when flying so as to increase a flying range and reduces noise when flying.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: March 5, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Youn Sic Nam, Myeong Man Park, Kwan Ho Moh, Keon Woo Kim
  • Apparatus and method for reducing neutral line current using load switching method
    Patent number: 7732940
    Abstract: An apparatus for reducing a neutral current using a load switching method in accordance with the present invention includes a phase current detection unit for detecting a phase current in each of a top stage power line and a bottom stage power line, a load switching unit for changing an arrangement of a load connected each phase of at least one among the top stage power line and the bottom stage power line and a control unit for controlling the load switching unit so as to compare a strength of the detected phase current of the top stage power line with a strength of the detected phase current of the bottom stage power line and to change the arrangement of the load connected to each phase of at least one among the top stage power line and the bottom stage power line according to the comparison result.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: June 8, 2010
    Assignee: Sungkyunkwan University Foundation For Corporate Collaboration
    Inventors: Chul Hwan Kim, Keon Woo Park
  • REFRIGERATOR DOOR OPENING APPARATUS
    Publication number: 20090229186
    Abstract: provided is a refrigerator door opening apparatus comprises: a foot pedal; a sliding unit for sliding said foot pedal downwardly; and a unit for providing a repelling force with a first and a second portions, the first portion coupled with the foot pedal and the second portion located separately from the first portion.
    Type: Application
    Filed: March 27, 2008
    Publication date: September 17, 2009
    Inventor: Keon-Woo PARK
  • APPARATUS AND METHOD FOR REDUCING NEUTRAL LINE CURRENT USING LOAD SWITCHING METHOD
    Publication number: 20090085403
    Abstract: An apparatus for reducing a neutral current using a load switching method in accordance with the present invention includes a phase current detection unit for detecting a phase current in each of a top stage power line and a bottom stage power line, a load switching unit for changing an arrangement of a load connected each phase of at least one among the top stage power line and the bottom stage power line and a control unit for controlling the load switching unit so as to compare a strength of the detected phase current of the top stage power line with a strength of the detected phase current of the bottom stage power line and to change the arrangement of the load connected to each phase of at least one among the top stage power line and the bottom stage power line according to the comparison result.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 2, 2009
    Inventors: CHUL HWAN KIM, Keon Woo Park