Patents by Inventor Jae Mok Yi

Jae Mok Yi 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: 7903785
    Abstract: Provided is a method of bright-field imaging using x-rays in a sample to reveal lattice defects as well as structural inhomogeneities, the method comprising: (a) disposing a sample on a holder in the Laue transmission geometry and setting the sample to a single reflection in the Bragg diffraction; (b) projecting a beam of monochromatic x-rays on the sample; and (c) obtaining transmitted radiographic images and reversed diffracted images of the projected beam of monochromatic x-rays by the sample, respectively.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: March 8, 2011
    Assignees: Postech Foundation, Postech Academy-Industry Foundation
    Inventors: Jung Ho Je, Jae Mok Yi
  • Publication number: 20090290681
    Abstract: Provided is a method of bright-field imaging using x-rays in a sample to reveal lattice defects as well as structural inhomogeneities, the method comprising: (a) disposing a sample on a holder in the Laue transmission geometry and setting the sample to a single reflection in the Bragg diffraction; (b) projecting a beam of monochromatic x-rays on the sample; and (c) obtaining transmitted radiographic images and reversed diffracted images of the projected beam of monochromatic x-rays by the sample, respectively.
    Type: Application
    Filed: July 12, 2006
    Publication date: November 26, 2009
    Inventors: Jung Ho Je, Jae Mok Yi
  • Patent number: 7620149
    Abstract: Provided is a method of determining a three-dimensional distribution of structural defects in a single crystal material, the method comprising: (a) disposing a single crystal sample on a holder, the sample being set to a symmetric reflection in the Bragg Geometry; (b) projecting a beam of incident x-rays on a predetermined crystal plane in the sample and reflecting the x-rays while the sample is azimuthally rotating with respect to an normal axis, the normal axis being perpendicular to the predetermined crystal plane; (c) obtaining geometrical measured values of a two-dimensional configuration of defects on the detector plane of a CCD detector; and (d) determining the three-dimensional distribution of the defects in the sample by formulating a geometrical relation between a three-dimensional configuration of defects on the sample and the geometrical measured values of the two-dimensional configuration of defects on the detector plane.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: November 17, 2009
    Assignees: Postech Foundation, Postech Academy-Industry Foundation
    Inventors: Jung Ho Je, Jae Mok Yi
  • Publication number: 20090034681
    Abstract: Provided is a method of determining a three-dimensional distribution of structural defects in a single crystal material, the method comprising: (a) disposing a single crystal sample on a holder, the sample being set to a symmetric reflection in the Bragg Geometry; (b) projecting a beam of incident x-rays on a predetermined crystal plane in the sample and reflecting the x-rays while the sample is azimuthally rotating with respect to an normal axis, the normal axis being perpendicular to the predetermined crystal plane; (c) obtaining geometrical measured values of a two-dimensional configuration of defects on the detector plane of a CCD detector; and (d) determining the three-dimensional distribution of the defects in the sample by formulating a geometrical relation between a three-dimensional configuration of defects on the sample and the geometrical measured values of the two-dimensional configuration of defects on the detector plane.
    Type: Application
    Filed: January 6, 2006
    Publication date: February 5, 2009
    Applicants: POSTECH FOUNDATION, POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Jung Ho Je, Jae Mok Yi