Patents by Inventor Keum Soo Jeon

Keum Soo Jeon 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: 7248768
    Abstract: The present invention relates generally to an optical interconnection module for vertical optical coupling and a method of manufacturing the optical interconnection module. The optical interconnection module includes an optical waveguide. The optical waveguide includes substrate on which electrode pads and a predetermined circuit pattern are formed; a light source unit provided on the substrate and configured to generate an optical signal and emit the signal to an outside; an optical detection unit for receiving the optical signal from the light source unit and converting the optical signal into an electric signal; drive units provided on the substrate and configured to drive the light source unit and the light detection unit in response to electric signals supplied through the electrode pads; and a cladding layer, a core layer layered on the cladding layer, and an elliptical reflecting mirror surface placed on an end of the core layer facing the light source unit.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: July 24, 2007
    Assignee: Doosan Corporation
    Inventors: Keum Soo Jeon, Min Su Lee, Sung Ho Kang, Yong Wook Kim, In Su Park
  • Patent number: 7218825
    Abstract: The present invention relates to an optical waveguide having a curved reflecting mirror surface for optical coupling and a method of manufacturing it. The method of manufacturing an optical waveguide includes the steps of coating a transparent glass substrate with a photosensitive material; radiating ultraviolet rays onto the photosensitive material through a mask in which the shape of the optical waveguide and partition blocks formed beside ends of the optical waveguide are patterned; manufacturing a photoresist stamp by developing patterns onto which the ultraviolet ray has been radiated through the mask; forming a PolyDiMethylSiloxane (PDMS) mold by coating the photo stamp with PDMS, and forming a core; forming the optical waveguide, in which the partition blocks are formed beside the ends thereof, using the PDMS mold; and dropping liquid polymer between the partition blocks formed beside the ends of the optical waveguide using an inkjet header and hardening it.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: May 15, 2007
    Assignee: Doosan Corporation
    Inventors: Keum Soo Jeon, Min Su Lee, Sung Ho Kang, Yong Wook Kim, In Su Park