Patents by Inventor Seul Ki Rom KIM

Seul Ki Rom KIM 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: 9846144
    Abstract: An apparatus for detecting a defect of a press panel includes: an acoustic emission sensor unit configured to detect at least one elastic wave signal emitted from the press panel as a detection target during press work, a period measurer configured to measure a period as a section in which there are consecutive signals with a greater voltage than a threshold voltage among the at least one detected signals, and a defect existence determination unit configured to determine that a defect is generated in the press panel when the measured period is greater than a first reference value, and to determine that the press panel is in a normal state when the measured period is smaller than a second reference value which is smaller than the first reference value.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: December 19, 2017
    Assignees: Hyundai Motor Company, Kia Motors Corporation, UNIST Academy-Industry Research Corporation
    Inventors: Jae Ryeon Hwang, ByungHun Kim, Franklin Bien, Hyon Gi Yoo, Chan Woo Jeong, Nguyen Ngoc Quang, Liu Zhenyi, Seul Ki Rom Kim
  • Publication number: 20160097745
    Abstract: An apparatus for detecting a defect of a press panel includes: an acoustic emission sensor unit configured to detect at least one elastic wave signal emitted from the press panel as a detection target during press work, a period measurer configured to measure a period as a section in which there are consecutive signals with a greater voltage than a threshold voltage among the at least one detected signals, and a defect existence determination unit configured to determine that a defect is generated in the press panel when the measured period is greater than a first reference value, and to determine that the press panel is in a normal state when the measured period is smaller than a second reference value which is smaller than the first reference value.
    Type: Application
    Filed: October 2, 2015
    Publication date: April 7, 2016
    Inventors: Jae Ryeon Hwang, ByungHun Kim, Franklin Bien, Hyon Gi Yoo, Chan Woo Jeong, Nguyen Ngoc Quang, Liu Zhenyl, Seul Ki Rom Kim
  • Publication number: 20150143912
    Abstract: According to the present invention, it is possible to determine a defect on a product caused in a pressing process by applying a predetermined acoustic signal to an object to be inspected and then sensing propagation of the applied signal, and it is possible to improve inspection performance, using an acoustic sensor capable of sensing sounds in an audible band and a sound collector that collects sounds and prevents noise. Further, it is possible to prevent defective panels from being put into the following process line by inspecting panels produced in a panel production line.
    Type: Application
    Filed: November 28, 2014
    Publication date: May 28, 2015
    Inventors: Franklin Bien, Hyon Gi Yoo, Zhenyi Liu, Nguyen Ngoc Quang, Seul Ki Rom Kim, Joo Hyeob Song
  • Publication number: 20150143909
    Abstract: According to the present invention, it is possible to determine a defect on a product caused in a press process by applying a predetermined acoustic signal to an object to be inspected and then sensing propagation of the applied signal, and it is possible to improve inspection performance, using an acoustic sensor capable of sensing sounds in an audible band and a high-frequency sensor capable of sensing sounds in an non-audible band.
    Type: Application
    Filed: November 28, 2014
    Publication date: May 28, 2015
    Inventors: Franklin Bien, Hyon Gi YOO, Zhenyi Liu, Nguyen Ngoc Quang, Seul Ki Rom KIM, Joo Hyeob SONG