Patents by Inventor Kyushik Park

Kyushik 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).

  • Damping force variable valve and shock absorber using same
    Patent number: 7273138
    Abstract: A damping force variable valve includes a main valve provided between a high pressure section and a low pressure section, for allowing a flow of oil from the high pressure section into the low pressure section when the main valve is opened, the main valve being capable of being opened or closed depending on a pressure of the high pressure section, an initial preload and a pressure of a control chamber; a first variable orifice provided between the high pressure section and the control chamber, for controlling the pressure of the control chamber; a fixed orifice provided between the control chamber and the low pressure section; and a second variable orifice provided between the high pressure section and the low pressure section.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: September 25, 2007
    Assignee: Mando Corporation
    Inventor: Kyushik Park
  • Damping force variable valve and shock absorber using same
    Publication number: 20050167216
    Abstract: A damping force variable valve includes a main valve provided between a high pressure section and a low pressure section, for allowing a flow of oil from the high pressure section into the low pressure section when the main valve is opened, the main valve being capable of being opened or closed depending on a pressure of the high pressure section, an initial preload and a pressure of a control chamber; a first variable orifice provided between the high pressure section and the control chamber, for controlling the pressure of the control chamber; a fixed orifice provided between the control chamber and the low pressure section; and a second variable orifice provided between the high pressure section and the low pressure section.
    Type: Application
    Filed: January 28, 2005
    Publication date: August 4, 2005
    Applicant: Mando Corporation
    Inventor: Kyushik Park