Patents by Inventor Hanaul Noh

Hanaul Noh 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).

  • Scanning probe microscope with drift compensation
    Patent number: 8402560
    Abstract: A scanning probe microscope compensates for relative drift between its upper structure that includes a probe and a scanner that scans the probe in a straight line and a lower structure that includes a sample stage and a scanner that scans the sample stage in a plane. A light beam from the upper structure is initially aligned with a center of a position sensitive photo detector (PSPD) disposed on the lower structure at a predetermined position of the sample stage and any subsequent misalignments of the light beam with the center of the PSPD at the predetermined position of the sample stage are determined to be caused by drift and compensated by the scanning probe microscope.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: March 19, 2013
    Assignee: Park Systems Corp.
    Inventors: Sang-il Park, Hanaul Noh
  • SCANNING PROBE MICROSCOPE WITH DRIFT COMPENSATION
    Publication number: 20110277192
    Abstract: A scanning probe microscope compensates for relative drift between its upper structure that includes a probe and a scanner that scans the probe in a straight line and a lower structure that includes a sample stage and a scanner that scans the sample stage in a plane. A light beam from the upper structure is initially aligned with a center of a position sensitive photo detector (PSPD) disposed on the lower structure at a predetermined position of the sample stage and any subsequent misalignments of the light beam with the center of the PSPD at the predetermined position of the sample stage are determined to be caused by drift and compensated by the scanning probe microscope.
    Type: Application
    Filed: May 4, 2010
    Publication date: November 10, 2011
    Inventors: Sang-Il PARK, Hanaul Noh