Patents by Inventor Yong Nam Kwon

Yong Nam Kwon 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).

  • Apparatus for manufacturing truss structure using multi-point pins, method of manufacturing truss structure using the same, truss core sandwich panel having the truss structure, method of manufacturing the truss core sandwich panel
    Patent number: 8793877
    Abstract: The present invention provides an apparatus for manufacturing a truss structure using multi-point pins, a method of manufacturing a truss structure using the apparatus, a truss core sandwich panel having the truss structure, and a method of manufacturing the truss core sandwich panel. The apparatus includes a metal plate, clamps, an upper die and a lower die. The clamps hold the metal plate. The upper die has upper multi-point pins which press the metal plate downwards. The lower die has lower multi-point pins which press the metal plate upwards. The metal plate has first and second points that respectively correspond to the upper and lower multi-point pins. The first points are extended downwards by the upper multi-point pins, and the second points are extended upwards by the lower multi-point pins. Thereby, many symmetrical sides are formed in the truss structure, thus increasing the stability of the truss structure.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: August 5, 2014
    Assignee: Korea Institute of Machinery and Materials
    Inventors: Sang Woo Kim, Daeyong Kim, Ji Hoon Kim, Youngseon Lee, Yong Nam Kwon, Seong Hoon Kang, Kwang Seok Lee
  • MAGNESIUM ALLOY SHEET HAVING IMPROVED FORMABILITY AT ROOM TEMPERATURE, AND METHOD FOR MANUFACTURING SAME
    Publication number: 20130209309
    Abstract: Provided are a magnesium alloy sheet having improved formability at room temperature and a method for manufacturing same. According to one embodiment of the present invention, the method for manufacturing the magnesium alloy sheets having improved formability at room temperature is characterized by comprising a first pretreatment step of applying residual compression stress to the surface the magnesium alloy raw material.
    Type: Application
    Filed: August 29, 2011
    Publication date: August 15, 2013
    Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Young Seon Lee, Yong Nam Kwon, Seong Hoon Kang, Kwang Seok Lee, Dae Yong Kim, Ji Hoon Kim, Sang Woo Kim
  • APPARATUS FOR MANUFACTURING TRUSS STRUCTURE USING MULTI-POINT PINS, METHOD OF MANUFACTURING TRUSS STRUCTURE USING THE SAME, TRUSS CORE SANDWICH PANEL HAVING THE TRUSS STRUCTURE, METHOD OF MANUFACTURING THE TRUSS CORE SANDWICH PANEL
    Publication number: 20120263969
    Abstract: The present invention provides an apparatus for manufacturing a truss structure using multi-point pins, a method of manufacturing a truss structure using the apparatus, a truss core sandwich panel having the truss structure, and a method of manufacturing the truss core sandwich panel. The apparatus includes a metal plate, clamps, an upper die and a lower die. The clamps hold the metal plate. The upper die has upper multi-point pins which press the metal plate downwards. The lower die has lower multi-point pins which press the metal plate upwards. The metal plate has first and second points that respectively correspond to the upper and lower multi-point pins. The first points are extended downwards by the upper multi-point pins, and the second points are extended upwards by the lower multi-point pins. Thereby, many symmetrical sides are formed in the truss structure, thus increasing the stability of the truss structure.
    Type: Application
    Filed: February 9, 2012
    Publication date: October 18, 2012
    Applicant: KOREA INSTITUTE OF MACHINERY AND MATERIALS
    Inventors: Sang Woo Kim, Daeyong Kim, Ji Hoon Kim, Youngseon Lee, Yong Nam Kwon, Seong Hoon Kang, Kwang Seok Lee