Patents by Inventor Won-jung Oh

Won-jung Oh 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: 20180264606
    Abstract: A multiple heat source-type preheating device for a machining apparatus is provided. The multiple heat source-type preheating device for a machining apparatus includes a first heat source provision module and a second heat source provision module. The first heat source provision module is installed to be moved along a portion of a material to be machined along with a spindle adapted to rotate a tool at high speed, and is configured to preheat the portion of the material to be machined by providing a heat source thereto. The second heat source provision module is installed to be moved along with the first heat source provision module, and is configured to preheat the portion of the material to be machined by providing a heat source thereto while preceding or following the first heat source provision module.
    Type: Application
    Filed: May 22, 2017
    Publication date: September 20, 2018
    Inventors: Choon-Man LEE, Wan-sik WOO, Won-jung OH
  • Patent number: 10076814
    Abstract: A multiple heat source-type preheating device for a machining apparatus is provided. The multiple heat source-type preheating device for a machining apparatus includes a first heat source provision module and a second heat source provision module. The first heat source provision module is installed to be moved along a portion of a material to be machined along with a spindle adapted to rotate a tool at high speed, and is configured to preheat the portion of the material to be machined by providing a heat source thereto. The second heat source provision module is installed to be moved along with the first heat source provision module, and is configured to preheat the portion of the material to be machined by providing a heat source thereto while preceding or following the first heat source provision module.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: September 18, 2018
    Assignee: Changwon National University Industry Academy Cooperation Corps
    Inventors: Choon-Man Lee, Wan-sik Woo, Won-jung Oh