Patents by Inventor Ji-Sung Park

Ji-Sung 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).

  • Publication number: 20080117573
    Abstract: A slide type portable terminal can include a main unit including separated first and second key sections and a first plate coupled to a surface of the main unit and a display unit with a display screen on a front surface and a second plate. The second plate can slide with respect to the first plate and preferably slides along the surface of the main unit to cause the first and second key sections of the main unit to be covered and exposed by the display unit. Further, first and second magnets can be provided on the first and second plates, respectively, so that the same poles of the magnets face each other to provide a repulsive force when they are positioned to face close to each other. According to embodiments of the present invention, there are various advantages in that the portable terminal can be utilized more conveniently and production costs and failure rates thereof can also be reduced.
    Type: Application
    Filed: November 21, 2007
    Publication date: May 22, 2008
    Inventors: Sang-Hyuk IM, Hyun-Ho Lee, Chang-ll Lee, Kwon-Jin Kang, Red-Heat Oh, Ji-Sung Park
  • Patent number: 7363066
    Abstract: A slide type portable terminal can include a main unit including separated first and second key sections and a first plate coupled to a surface of the main unit and a display unit with a display screen on a front surface and a second plate. The second plate can slide with respect to the first plate and preferably slides along the surface of the main unit to cause the first and second key sections of the main unit to be covered and exposed by the display unit. Further, first and second magnets can be provided on the first and second plates, respectively, so that the same poles of the magnets face each other to provide a repulsive force when they are positioned to face close to each other. According to embodiments of the present invention, there are various advantages in that the portable terminal can be utilized more conveniently and production costs and failure rates thereof can also be reduced.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: April 22, 2008
    Assignee: LG Electronics Inc.
    Inventors: Sang-Hyuk Im, Hyun-Ho Lee, Chang-Il Lee, Kwon-Jin Kang, Red-Heat Oh, Ji-Sung Park
  • Patent number: 7356881
    Abstract: A swivel hinge can have a first hinge section and a second hinge section coupled to the first hinge section to rotate in a direction perpendicular to the first hinge section. The first and second hinge sections can include first and second magnets configured to relatively position the first and second hinge sections with respect to each other. The swivel can include a stopper engagement section provided at one end of a second hinge shaft to rotate together with the second hinge shaft and a stopper having a surface facing a locking surface of the stopper engagement section to restrict rotation of the second hinge section. The stopper can allow the locking surface of the stopper engagement section to freely rotate when the first hinge section rotates by a predetermined angle. The swivel hinge can operate in a portable terminal.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: April 15, 2008
    Assignee: LG Electronics Inc.
    Inventors: Ji-Sung Park, Red-Heat Oh, Sang-Hyuk Im, Kwon-Jin Kang
  • Patent number: 7102881
    Abstract: The present invention relates to a slide type portable terminal and methods for the same. Embodiments of a slide type portable terminal can include a main unit having key sections that are formed on a surface of the main unit, a slide unit that can slide relative to the surface of the main unit to cause each of the plurality of the key sections of the main unit to be covered and exposed and a slide driving mechanism for causing the slide unit to slide, for example, using restorative forces. The slide mechanism can include coil springs guided by guide bars. The guide bars can have both ends rotatably coupled to the main and slide units, respectively, such that the lengths of portions of the guide bars can change as the slide unit is moved.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: September 5, 2006
    Assignee: LG Electronics Inc.
    Inventors: Ji-Sung Park, Sang-Hyuk Im
  • Publication number: 20050018394
    Abstract: The present invention relates to a slide type portable terminal and methods for the same. Embodiments of a slide type portable terminal can include a main unit having key sections that are formed on a surface of the main unit, a slide unit that can slide relative to the surface of the main unit to cause each of the plurality of the key sections of the main unit to be covered and exposed and a slide driving mechanism for causing the slide unit to slide, for example, using restorative forces. The slide mechanism can include coil springs guided by guide bars. The guide bars can have both ends rotatably coupled to the main and slide units, respectively, such that the lengths of portions of the guide bars can change as the slide unit is moved.
    Type: Application
    Filed: February 24, 2004
    Publication date: January 27, 2005
    Inventors: Ji-Sung Park, Sang-Hyuk Im
  • Publication number: 20050009581
    Abstract: A slide type portable terminal can include a main unit including separated first and second key sections and a first plate coupled to a surface of the main unit and a display unit with a display screen on a front surface and a second plate. The second plate can slide with respect to the first plate and preferably slides along the surface of the main unit to cause the first and second key sections of the main unit to be covered and exposed by the display unit. Further, first and second magnets can be provided on the first and second plates, respectively, so that the same poles of the magnets face each other to provide a repulsive force when they are positioned to face close to each other. According to embodiments of the present invention, there are various advantages in that the portable terminal can be utilized more conveniently and production costs and failure rates thereof can also be reduced.
    Type: Application
    Filed: February 24, 2004
    Publication date: January 13, 2005
    Inventors: Sang-Hyuk Im, Hyun-Ho Lee, Chang-Il Lee, Kwon-Jin Kang, Red-Heat Oh, Ji-Sung Park
  • Publication number: 20050005400
    Abstract: A swivel hinge can have a first hinge section and a second hinge section coupled to the first hinge section to rotate in a direction perpendicular to the first hinge section. The first and second hinge sections can include first and second magnets configured to relatively position the first and second hinge sections with respect to each other. The swivel can include a stopper engagement section provided at one end of a second hinge shaft to rotate together with the second hinge shaft and a stopper having a surface facing a locking surface of the stopper engagement section to restrict rotation of the second hinge section. The stopper can allow the locking surface of the stopper engagement section to freely rotate when the first hinge section rotates by a predetermined angle. The swivel hinge can operate in a portable terminal.
    Type: Application
    Filed: February 24, 2004
    Publication date: January 13, 2005
    Inventors: Ji-Sung Park, Red-Heat Oh, Sang-Hyuk Im, Kwon-Jin Kang