Patents by Inventor Yonggyu Gim

Yonggyu Gim 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 microscopic imaging of electrical and magnetic properties of room-temperature objects
    Patent number: 5894220
    Abstract: A cryogenic apparatus for microscopy of physical properties of an object including a thin, stiff, transparent substrate or window within the outer wall of the vacuum space of a dewar and a cryogenic sensor within the vacuum space and spaced very close distances to the window. This construction allows for positioning a sample for measurement outside of the vacuum space, at room temperature or higher and for microscopy of physical properties of the sample by monitoring the output from the cryogenic sensor as it is scanned along the surface of the sample.
    Type: Grant
    Filed: February 12, 1996
    Date of Patent: April 13, 1999
    Assignee: University of Maryland
    Inventors: Frederick Charles Wellstood, Yonggyu Gim, Randall Christopher Black, Steven M. Green