Patents by Inventor Seh Ahn

Seh Ahn 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).

  • Publication number: 20060056024
    Abstract: A manufacturing method of a wire grid polarizer includes the steps of: preparing a mold; sequentially forming a metal foil and a polymer on a substrate; molding a polymer by using the mold; etching the metal foil by using the molded polymer, and forming a wire grid pattern; and removing the polymer.
    Type: Application
    Filed: September 15, 2004
    Publication date: March 16, 2006
    Inventors: Seh Ahn, Ki Lee, Sung Lee, Sang Yoon, Jin Kim, Joo Park
  • Publication number: 20050264788
    Abstract: A lithography apparatus is provided. The apparatus includes: a stage, a first light source unit, an optical system, an image obtaining means, an image edit means, an LC panel, and a second light source unit. The LC panel is coupled with the optical system and receives a signal of the image edited by the image edit means and displays the received image to perform a photo mask function. The second light source unit provides light used in performing an exposure on the test material using the imaged displayed on the LC panel for a photo mask.
    Type: Application
    Filed: May 31, 2005
    Publication date: December 1, 2005
    Inventors: Ki Lee, Seh Ahn, Sung Pieh, Byoung Park, Gyu Kim
  • Publication number: 20050243447
    Abstract: The present invention provides a flexible wire grid polarizer used in a visible ray band and a fabricating method thereof. The present invention includes the steps of forming a non-adhesive layer on an inner area of a lower substrate, forming a flexible polymer substrate on the lower substrate including the non-adhesive layer, forming a thin metal layer on the flexible polymer substrate, forming a metal grid pattern by etching the thin metal layer, dicing a wafer staying within a boundary of the non-adhesive layer on the lower substrate, and separating the lower substrate including the non-adhesive layer from the diced wafer to complete the flexible wire grid polarizer.
    Type: Application
    Filed: April 28, 2005
    Publication date: November 3, 2005
    Inventors: Ki Lee, Seh Ahn
  • Publication number: 20050008286
    Abstract: A manufacturing method of a wavelength filter includes the steps of: depositing on a substrate a lower clad layer and a core layer, each made from a polymer material; compressing the core layer with a mold to lithograph a pattern of the mold onto the core layer; stabilizing the lower clad layer and the core layer; separating the core layer from the mold; forming an upper clad layer on the core layer; and forming an electrode on the upper clad layer.
    Type: Application
    Filed: July 30, 2004
    Publication date: January 13, 2005
    Inventors: Seh Ahn, Ki Lee, Sung Lee