Patents by Inventor Hack Jai Song

Hack Jai Song 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: 7744049
    Abstract: An automatic level controlling apparatus (100) for supporting an appliance includes a hollow leg body (110), a piston (140) inserted in the hollow leg body (110), a spring (130) seated on an upper portion of the piston (140), a cap (120) disposed on an upper portion of the piston (140) to support an upper portion of the spring (130), a frictional member (150) disposed around the piston (140), and a piston rod (160) coupled to the piston (140) and supported on a floor.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: June 29, 2010
    Assignee: LG Electronics Inc.
    Inventors: Ho Cheol Kwon, Hack Jai Song, Beom Jun Kim, Il Jyeok Yim, Kang Mo Choi
  • Patent number: 7735173
    Abstract: A washing machine and a controlling method thereof are provided. The washing machine and controlling method use a sensor to sense a load of laundry at a predetermined point during a wash cycle, and controls the rotating speed of a drum based on whether the sensed load of laundry is a small load or a single article, in order to untangle laundry and implement a spin cycle.
    Type: Grant
    Filed: November 11, 2005
    Date of Patent: June 15, 2010
    Assignee: LG Electronics Inc.
    Inventors: Ho Cheol Kwon, Hack Jai Song, Beom Jun Kim, Il Jyeok Yim, Kang Mo Choi
  • Publication number: 20090039216
    Abstract: An automatic level controlling apparatus for supporting an appliance includes a hollow leg body, a piston inserted in the hollow leg body, a spring seated on an upper portion of the piston, a cap disposed on an upper portion of the piston to support an upper portion of the spring, a frictional member disposed around the piston, and a piston rod coupled to the piston and supported on a floor.
    Type: Application
    Filed: October 6, 2005
    Publication date: February 12, 2009
    Inventors: Ho Cheol Kwon, Hack Jai Song, Beom Jun Kim, Il Jyeok Yim, Kang Mo Choi
  • Patent number: 7441742
    Abstract: A horizon control structure for a washing machine is provided. The structure includes: a stopper base having a base body having a predetermined diameter, a sleeve mount hollow depressed inside of the base body and having a predetermined diameter, at least one protrusion insertion through-hole being at a distance and provided inside of the base body, and a slip preventing part provided on a bottom surface of the base body; and a leg stopper layered on the stopper base, and having a stopper body having a predetermined diameter, an insertion sleeve extended from a rear surface of the stopper body and having a predetermined diameter and length, and an insertion protrusion protruded from a rear surface of the stopper body and having a predetermined length.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: October 28, 2008
    Assignee: LG Electronics Inc.
    Inventors: Ho Cheol Kwon, Il Hyeok Yim, Youn Su Jung, Hack Jai Song, Beom Jun Kim