Patents by Inventor Eun Jung Ham

Eun Jung Ham 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).

  • Patent number: 7645057
    Abstract: An optical sheet includes a substrate onto which light is incident, and a convex part protruded from the substrate by a predetermined thickness. A thickness of the convex part increases from an edge to a center thereof.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: January 12, 2010
    Assignee: Miraenanotech Co., Ltd.
    Inventors: Cheul Yong Kim, Sang Mook Kim, Jong Wook Huh, Dong Ryoul Kim, Ki Won Jeon, Ju Won Lee, Eun Jung Ham, Myung Su Lee
  • Publication number: 20080180598
    Abstract: An optical sheet includes a substrate onto which light is incident, and a convex part protruded from the substrate by a predetermined thickness. A thickness of the convex part increases from an edge to a center thereof.
    Type: Application
    Filed: January 18, 2008
    Publication date: July 31, 2008
    Inventors: CHEUL YONG KIM, Sang Mook Kim, Jong Wook Huh, Dong Ryoul Kim, Ki Won Jeon, Ju Won Lee, Eun Jung Ham, Myung Su Lee
  • Patent number: 7344282
    Abstract: An optical sheet includes a substrate onto which light is incident, and a convex part protruded from the substrate by a predetermined thickness. A thickness of the convex part increases from an edge to a center thereof.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: March 18, 2008
    Assignee: Miraenanotech Co., Ltd.
    Inventors: Cheul Yong Kim, Sang Mook Kim, Jong Wook Huh, Dong Ryoul Kim, Ki Won Jeon, Ju Won Lee, Eun Jung Ham, Myung Su Lee