Patents by Inventor Ki-Haeng Cho

Ki-Haeng Cho 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).

  • Patent number: 10086671
    Abstract: Provided are an electronic control suspension apparatus and a damping force controlling method thereof, which are capable of changing a damping force of a damper by just manipulating a multistep switch even during driving. The electronic control suspension apparatus for controlling a damping force of a damper installed at each of a front wheel and a rear wheel includes: a multistep switch disposed in a vehicle and configured to change the damping force of the damper in a multistep manner between a hard step and a soft step; and an electronic control unit configured to control the damping force of the damper according to a current amount corresponding to a step selected from the multistep switch, the current amount to be applied to a solenoid valve being preset for each step of the multistep switch.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: October 2, 2018
    Assignee: MANDO CORPORATION
    Inventors: Min Sang Seong, Back Hyun Sung, Kyoung Won Park, Ki Haeng Cho, Ki Pal Ryu
  • Patent number: 9802455
    Abstract: An electronic control suspension apparatus for controlling a damping force of a damper installed at each of a front wheel and a rear wheel includes: a reception unit configured to receive a vehicle manipulation signal; a driver tendency analysis unit configured to calculate a driver tendency analysis value by analyzing a driver's driving tendency based on the vehicle manipulation signal received by the reception unit; a driver mode determination unit configured to determine a driver mode to which the driver tendency analysis value calculated by the driver tendency analysis unit belongs; and a damping force control unit configured to control the damping force of the damper by changing a current value to be applied to a solenoid valve according to the determined driver mode.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: October 31, 2017
    Assignee: MANDO CORPORATION
    Inventors: Min Sang Seong, Back Hyun Sung, Kyoung Won Park, Ki Haeng Cho, Ki Pal Ryu
  • Publication number: 20160347142
    Abstract: Provided are an electronic control suspension apparatus and a damping force controlling method thereof, which are capable of changing a damping force of a damper by just manipulating a multistep switch even during driving. The electronic control suspension apparatus for controlling a damping force of a damper installed at each of a front wheel and a rear wheel includes: a multistep switch disposed in a vehicle and configured to change the damping force of the damper in a multistep manner between a hard step and a soft step; and an electronic control unit configured to control the damping force of the damper according to a current amount corresponding to a step selected from the multistep switch, the current amount to be applied to a solenoid valve being preset for each step of the multistep switch.
    Type: Application
    Filed: May 24, 2016
    Publication date: December 1, 2016
    Inventors: Min Sang SEONG, Back Hyun SUNG, Kyoung Won PARK, Ki Haeng CHO, Ki Pal RYU
  • Publication number: 20160339756
    Abstract: An electronic control suspension apparatus for controlling a damping force of a damper installed at each of a front wheel and a rear wheel includes: a reception unit configured to receive a vehicle manipulation signal; a driver tendency analysis unit configured to calculate a driver tendency analysis value by analyzing a driver's driving tendency based on the vehicle manipulation signal received by the reception unit; a driver mode determination unit configured to determine a driver mode to which the driver tendency analysis value calculated by the driver tendency analysis unit belongs; and a damping force control unit configured to control the damping force of the damper by changing a current value to be applied to a solenoid valve according to the determined driver mode.
    Type: Application
    Filed: May 17, 2016
    Publication date: November 24, 2016
    Inventors: Min Sang SEONG, Back Hyun SUNG, Kyoung Won PARK, Ki Haeng CHO, Ki Pal RYU
  • Patent number: 9022188
    Abstract: A dust seal structure for a shock absorber includes a cylindrical base shell, in which a piston valve and a piston rod are embedded, a cap member covering one end of the base shell, an oil seal sealing the base shell, and a dust sealing member blocking dusts from being introduced at one side of the oil seal.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: May 5, 2015
    Assignee: Mando Corporation
    Inventors: Yoon Hyun Lee, Ki Haeng Cho
  • Publication number: 20130146408
    Abstract: A dust seal structure for a shock absorber includes a cylindrical base shell, in which a piston valve and a piston rod are embedded, a cap member covering one end of the base shell, an oil seal sealing the base shell, and a dust sealing member blocking dusts from being introduced at one side of the oil seal.
    Type: Application
    Filed: July 3, 2012
    Publication date: June 13, 2013
    Inventors: Yoon Hyun LEE, Ki Haeng Cho
  • Patent number: 6984406
    Abstract: The present invention relates to a Bacillus sp. strain producing a mannanase which is highly active in the neutral and the acidic media. The Bacillus sp. WL-1 strain (KCTC 0800BP), which is isolated from the soil, produces in large scale the mannanase in the culture medium containing lactose and bran, wherein the mannanase is highly active in the neutral and the acidic media so said mannanase is useful as an additive for feeds and is helpful in the decomposition of hemicellulose.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: January 10, 2006
    Assignee: CTC BIO Inc.
    Inventors: Ki-Haeng Cho, Ki-Hong Yoon, Dae-Weon Kim, Hwa-Gyun Oh, Young-Phill Oh
  • Publication number: 20030190741
    Abstract: The present invention relates to a Bacillus sp. strain producing a mannanase which is highly active in the neutral and the acidic media. The Bacillus sp. WL-1 strain (KCTC 0800BP), which is isolated from the soil, produces in large scale the mannanase in the culture medium containing lactose and bran, wherein the mannanase is highly active in the neutral and the acidic media so said mannanase is useful as an additive for feeds and is helpful in the decomposition of hemicellulose.
    Type: Application
    Filed: December 17, 2002
    Publication date: October 9, 2003
    Inventors: Ki-Haeng Cho, Ki-Hong Yoon, Dae-Weon Kim, Hwa-Gyun Oh, Young-Phill Oh