Patents by Inventor Sung II Chung

Sung II Chung 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).

  • Cylindrical Magnetic Levitation Stage
    Publication number: 20110234343
    Abstract: The present invention provides a cylindrical magnetic levitation stage which includes a cylindrical substrate used to form micro-patterns of various arbitrary shapes on a large-area semiconductor substrate or display panel substrate, a cylindrical substrate, a combination of a first permanent magnet array and a first coil array and a combination of a first permanent magnet array and a first coil array, which are coupled to the cylindrical substrate, so that levitation, axial translation and rotation of the cylindrical substrate can be made finely through the control of a magnetic force generated by the interaction between a magnetic field generated by electric current applied to the coil arrays and a magnetic field generated from the permanent magnet arrays corresponding to the coil arrays.
    Type: Application
    Filed: September 29, 2008
    Publication date: September 29, 2011
    Applicant: Korea Electrotechnology Research Institute
    Inventors: Jeong Woo Jeon, Hyun Seok Oh, Sung II Chung, Yeon Ho Jeong, Do Hyun Kang, S.A. Nikiforov, Mitica Caraiani