Patents by Inventor Jong-ho Choe

Jong-ho Choe 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).

  • Optical devices and methods of controlling propagation directions of light from the optical devices
    Patent number: 9499400
    Abstract: An optical device may include a substrate, a metal layer on the substrate, at least one first nano-structure in the layer, and at least one second nano-structure in the layer. The at least one first nano-structure may include a light source. The at least one first and second nano-structures may be spaced apart. A method of controlling a propagation direction of light output from an optical device that includes a metal layer on a substrate may include disposing first and second nano-structures in the layer; disposing at least one light source in the first nano-structure; and controlling the propagation direction of the light output from the at least one light source by changing at least one of a shape of the first nano-structure, a shape of the second nano-structure, a size of the first nano-structure, a size of the second nano-structure, and an interval between the first and second nano-structures.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: November 22, 2016
    Assignees: Samsung Electronics Co., Ltd., Korea Universisty Industrial & Academic Collaboration Foundation
    Inventors: Jin-eun Kim, Q-han Park, Chang-won Lee, Yeon-sang Park, Young-geun Roh, Hwan-soo Suh, Jong-ho Choe
  • OPTICAL DEVICES AND METHODS OF CONTROLLING PROPAGATION DIRECTIONS OF LIGHT FROM THE OPTICAL DEVICES
    Publication number: 20130070459
    Abstract: An optical device may include a substrate, a metal layer on the substrate, at least one first nano-structure in the layer, and at least one second nano-structure in the layer. The at least one first nano-structure may include a light source. The at least one first and second nano-structures may be spaced apart. A method of controlling a propagation direction of light output from an optical device that includes a metal layer on a substrate may include disposing first and second nano-structures in the layer; disposing at least one light source in the first nano-structure; and controlling the propagation direction of the light output from the at least one light source by changing at least one of a shape of the first nano-structure, a shape of the second nano-structure, a size of the first nano-structure, a size of the second nano-structure, and an interval between the first and second nano-structures.
    Type: Application
    Filed: July 16, 2012
    Publication date: March 21, 2013
    Applicants: Korea University Industrial & Academic Collaboration Foundation, Samsung Electronics Co., Ltd.
    Inventors: Jin-eun Kim, Q-han Park, Chang-won Lee, Yeon-sang Park, Young-geun Roh, Hwan-soo Suh, Jong-ho Choe