Patents by Inventor Seung Cha

Seung Cha 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: 20070080283
    Abstract: An image sensor with a high dynamic range is provided. The image sensor includes a semiconductor substrate, a plurality of light-receiving elements formed on the semiconductor substrate, and light-shield films formed on upper ends of some of the light-receiving elements to partially block light incident upon each of the some light-receiving elements. Hence, an image sensing device including the image sensor can detect an accurate image regardless of whether the environment is bright or dark.
    Type: Application
    Filed: December 7, 2006
    Publication date: April 12, 2007
    Applicant: C'EST IMAGE, Inc.
    Inventors: Heung Kim, Yong Ha, Ui Yi, Jin Kim, Woo Kwon, Jong Won, Hak Lee, Seung Cha, Seung Lee, Tae Shin
  • Publication number: 20070074601
    Abstract: The present invention relates to a metal nanocomposite powder reinforced with carbon nanotubes and to a process of producing a metal nanocomposite powder homogeneously reinforced with carbon nanotubes in a metal matrix powder.
    Type: Application
    Filed: March 15, 2004
    Publication date: April 5, 2007
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Soon Hong, Seung Cha, Kyung Kim, Seong Hong
  • Publication number: 20060185242
    Abstract: Disclosed is a self-regulating hydrogen gas generator for a hydrogen fuel cell. The self-regulating hydrogen gas generator includes a fuel tank, defining an inner space having a designated volume, provided with a hydrogen outlet communicating the inner space, a fuel solution, containing a hydrogen storing material, stored in the fuel tank, and a catalyst contacting the fuel solution for generating hydrogen gas, wherein the catalyst fills a catalytic reactor, provided with a closed portion for interrupting the contact between the catalyst and the fuel solution, and an opened portion contacting the fuel solution, so that the generation and interruption of hydrogen gas are actively regulated based on the increase and decrease of the pressure of the fuel tank.
    Type: Application
    Filed: March 25, 2004
    Publication date: August 24, 2006
    Inventors: Seung Cha, Jeong Park
  • Publication number: 20060097130
    Abstract: An image sensor with a high dynamic range is provided. The image sensor includes a semiconductor substrate, a plurality of light-receiving elements formed on the semiconductor substrate, and light-shield films formed on upper ends of some of the light-receiving elements to partially block light incident upon each of the some light-receiving elements. Hence, an image sensing device including the image sensor can detect an accurate image regardless of whether the environment is bright or dark.
    Type: Application
    Filed: July 7, 2005
    Publication date: May 11, 2006
    Inventors: Heung Kim, Yong Ha, Ui Yl, Jin Kim, Woo Kwon, Jong Won, Hak Lee, Seung Cha, Seung Lee, Tae Shin