Patents by Inventor Chae Hyun Kwak

Chae Hyun Kwak 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).

  • Visible light-responsive photocatalyst composition containing tungsten-based oxides and method of producing the same
    Patent number: 8603936
    Abstract: Disclosed herein is a light-responsive photocatalyst composition, which is a composite oxide semiconductor containing tungsten, and which can efficiently absorb visible light emitted from the sun and light emitted from interior lamps, such as fluorescent lamps, etc., and a method of preparing the light-responsive photocatalyst composition. The visible light-responsive photocatalyst composition can decompose volatile organic compounds or harmful organic matter causing sick house syndrome, even indoors, because it can be activated by visible light outdoors and can respond to light emitted from interior lamps, such as fluorescent lamps, etc.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: December 10, 2013
    Assignee: Seoul National University R&DB Foundation
    Inventors: In Sun Cho, Sang Wook Lee, Jun Hong Noh, Shin Tae Bae, Dong Wook Kim, Chin Moo Cho, Chae Hyun Kwak, Tae Hoon Noh, Duk Kyu Lee, Kug Sun Hong
  • Visible light-responsive photocatalyst composition containing tungsten-based oxides and method of producing the same
    Publication number: 20090192032
    Abstract: Disclosed herein is a light-responsive photocatalyst composition, which is a composite oxide semiconductor containing tungsten, and which can efficiently absorb visible light emitted from the sun and light emitted from interior lamps, such as fluorescent lamps, etc., and a method of preparing the light-responsive photocatalyst composition. The visible light-responsive photocatalyst composition can decompose volatile organic compounds or harmful organic matter causing sick house syndrome, even indoors, because it can be activated by visible light outdoors and can respond to light emitted from interior lamps, such as fluorescent lamps, etc.
    Type: Application
    Filed: March 26, 2008
    Publication date: July 30, 2009
    Applicant: Seoul National University Industry Foundation
    Inventors: In Sun Cho, Sang Wook Lee, Jun Hong Noh, Shin Tae Bae, Dong Wook Kim, Chin Moo Cho, Chae Hyun Kwak, Tae Hoon Noh, Duk Kyu Lee, Kug Sun Hong
  • Method and System for Photocatalytically Decomposing Organic Pollutants Using Electromotive Force of Solar Cell
    Publication number: 20090114604
    Abstract: The present invention relates to a method and system for photocatalytically decomposing organic pollutants using the electromotive force of a solar cell. The present invention provides a method and system for decomposing organic pollutants, which can greatly increase the rate of decomposition of organic pollutants at low cost by combining a photocatalytic organic pollutant decomposition device, capable of decomposing organic pollutants using light energy, with a solar cell, capable of applying an external voltage to the photocatalytic organic pollutant decomposition device using light energy.
    Type: Application
    Filed: January 7, 2008
    Publication date: May 7, 2009
    Applicant: SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATION
    Inventors: Shin Tae Bae, Kug Sun Hong, Sang Wook Lee, In Sun Cho, Jun Hong Noh, Chin Moo Cho, Dong Wook Kim, Tae Hoon Noh, Chae Hyun Kwak