Patents by Inventor Yonggang Xi

Yonggang Xi 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).

  • NANO-OPTIC REFRACTIVE OPTICS
    Publication number: 20180210214
    Abstract: A vertical dipole array structure includes a substrate that supports a film, which is not comprised of a negative-index metamaterial. The film includes a plurality of tilt-oriented portions and apertures. At least two of the tilt-oriented portions are separated by an aperture, and the tilt-oriented portions are configured such that incident radiation is redirected into a negative or positive refraction direction.
    Type: Application
    Filed: December 14, 2017
    Publication date: July 26, 2018
    Applicant: University of Pittsburgh - Of the Commonwealth System of Higher Education
    Inventors: Hong Koo KIM, Yun-Suk JUNG, Yonggang XI
  • Nano-optic refractive optics
    Patent number: 9880393
    Abstract: A vertical dipole array structure includes a substrate that supports a film, which is not comprised of a negative-index metamaterial. The film includes a plurality of tilt-oriented portions and apertures. At least two of the tilt-oriented portions are separated by an aperture, and the tilt-oriented portions are configured such that incident radiation is redirected into a negative or positive refraction direction.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: January 30, 2018
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Hong Koo Kim, Yun-Suk Jung, Yonggang Xi
  • NANO-OPTIC REFRACTIVE OPTICS
    Publication number: 20130247973
    Abstract: A vertical dipole array structure includes a substrate that supports a film, which is not comprised of a negative-index metamaterial. The film includes a plurality of tilt-oriented portions and apertures. At least two of the tilt-oriented portions are separated by an aperture, and the tilt-oriented portions are configured such that incident radiation is redirected into a negative or positive refraction direction.
    Type: Application
    Filed: July 21, 2011
    Publication date: September 26, 2013
    Inventors: Hong Koo Kim, Yun-Suk Jung, Yonggang Xi