Patents by Inventor Chang-Yoon Ha

Chang-Yoon Ha 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).

  • Throttle apparatus
    Patent number: 6843224
    Abstract: Air induction noise of a throttle apparatus caused by interference between flowing air and an opening for a bypass passage is reduced because a protrusion formed on an interior surface of the throttle apparatus changes aerodynamic features of the throttle apparatus.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: January 18, 2005
    Assignee: Hyundai Motor Company
    Inventor: Chang-Yoon Ha
  • Oil control valve
    Patent number: 6827328
    Abstract: An oil control valve is provided that comprises a housing, a spool movably disposed inside the housing, and a damping unit disposed between a distal end of the spool and an end wall of the housing such that an impact generated by a collision of the spool at the end of its travel decreases.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: December 7, 2004
    Assignee: Hyundai Motor Company
    Inventor: Chang-Yoon Ha
  • Throttle apparatus
    Publication number: 20030070654
    Abstract: Air induction noise of a throttle apparatus caused by interference between flowing air and an opening for a bypass passage is reduced because a protrusion formed on an interior surface of the throttle apparatus changes aerodynamic features of the throttle apparatus.
    Type: Application
    Filed: September 26, 2002
    Publication date: April 17, 2003
    Inventor: Chang-Yoon Ha
  • Oil control valve
    Publication number: 20030047698
    Abstract: An oil control valve is provided that comprises a housing, a spool movably disposed inside the housing, and a damping unit disposed between a distal end of the spool and an end wall of the housing such that an impact generated by a collision of the spool at the end of its travel decreases.
    Type: Application
    Filed: September 4, 2002
    Publication date: March 13, 2003
    Inventor: Chang-Yoon Ha