Patents by Inventor Yoon Chang

Yoon Chang 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: 7613652
    Abstract: Computer technology for substantially optimizing portfolios of multiple participants is disclosed. Preferably the portfolios of such multiple participants comprise fixed income instruments. The disclosed systems and methods include using at least one computer system for storing digital data representing portfolio holdings of multiple parties and, in particular, for each participant storing in the computer memory data representing constraints with respect to the desired portfolio. The method and system comprise optimizing using an optimization engine portfolio and constraint information of multiple participants so as to generate a set of trades that would substantially optimize participants portfolios with respect to a known objective.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: November 3, 2009
    Assignee: Morgan Stanley
    Inventors: Andrew R. Young, Evan Tick, Robert C. Towse, Jr., Yoon Chang, Roy Edwin Campbell, II, Joan Ka-Wai Tse, Stephen David Reddy, Young-Sup Lee, John Scowcroft
  • Publication number: 20070150399
    Abstract: Computer technology for substantially optimizing portfolios of multiple participants is disclosed. Preferably the portfolios of such multiple participants comprise fixed income instruments. The disclosed systems and methods include using at least one computer system for storing digital data representing portfolio holdings of multiple parties and, in particular, for each participant storing in the computer memory data representing constraints with respect to the desired portfolio. The method and system comprise optimizing using an optimization engine portfolio and constraint information of multiple participants so as to generate a set of trades that would substantially optimize participants portfolios with respect to a known objective.
    Type: Application
    Filed: January 29, 2007
    Publication date: June 28, 2007
    Applicant: Morgan Stanley
    Inventors: Andrew Young, Evan Tick, Robert Towse, Yoon Chang, Roy Campbell, Joan Tse, Stephen Reddy, Young-Sup Lee, John Scowcroft
  • Publication number: 20070133866
    Abstract: Provided is a method and apparatus for classifying geological materials using image processing techniques. The method and apparatus classify geological materials including stones, rock samples, and rock surfaces according to type and state by sequentially applying image processing techniques, such as a color space analysis, a granulometry analysis, texture parameter extraction and texture statistics extraction, to digital images of the geological materials. Since the method and apparatus extract quantitative figures that represent an entire image region by applying various image processing techniques, such as the color space analysis, the granulometry, the texture parameter extraction and the texture statistics extraction, to the digital images of the geological materials, the geological materials can be classified, which is not possible using a conventional image processing technique.
    Type: Application
    Filed: November 28, 2006
    Publication date: June 14, 2007
    Inventors: Yoon Chang, Kyung Kim, Sung Shin
  • Publication number: 20060106705
    Abstract: Computer technology for substantially optimizing portfolios of multiple participants is disclosed. Preferably the portfolios of such multiple participants comprise fixed income instruments. The disclosed systems and methods include using at least one computer system for storing digital data representing portfolio holdings of multiple parties and, in particular, for each participant storing in the computer memory data representing constraints with respect to the desired portfolio. The method and system comprise optimizing using an optimization engine portfolio and constraint information of multiple participants so as to generate a set of trades that would substantially optimize participants portfolios with respect to a known objective.
    Type: Application
    Filed: December 28, 2005
    Publication date: May 18, 2006
    Inventors: Andrew Young, Evan Tick, Robert Towse, Yoon Chang, Roy Campbell, Joan Tse, Stephen Reddy, Young-Sup Lee, John Scowcroft
  • Publication number: 20020143694
    Abstract: Computer technology for substantially optimizing portfolios of multiple participants is disclosed. Preferably the portfolios of such multiple participants comprise fixed income instruments. The disclosed systems and methods include using at least one computer system for storing digital data representing portfolio holdings of multiple parties and, in particular, for each participant storing in the computer memory data representing constraints with respect to the desired portfolio. The method and system comprise optimizing using an optimization engine portfolio and constraint information of multiple participants so as to generate a set of trades that would substantially optimize participants portfolios with respect to a known objective.
    Type: Application
    Filed: March 15, 2002
    Publication date: October 3, 2002
    Applicant: Morgan Stanley Dean Witter & Co.
    Inventors: Andrew R. Young, Evan Tick, Robert C. Towse, Yoon Chang, Roy Edwin Campbell, Joan Ka-Wai Tse, Stephen David Reddy, Young-Sup Lee, John Scowcroft
  • Patent number: 6393409
    Abstract: Computer technology for substantially optimizing portfolios of multiple participants is disclosed. Preferably the portfolios of such multiple participants comprise fixed income instruments. The disclosed systems and methods include using at least one computer system for storing digital data representing portfolio holdings of multiple parties and, in particular, for each participant storing in the computer memory data representing constraints with respect to the desired portfolio. The method and system comprise optimizing using an optimization engine portfolio and constraint information of multiple participants so as to generate a set of trades that would substantially optimize participants portfolios with respect to a known objective.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: May 21, 2002
    Assignee: Morgan Stanley Dean Witter & Co.
    Inventors: Andrew R. Young, Evan Tick, Robert C. Towse, Jr., Yoon Chang, Roy Edwin Campbell, II, Joan Ka-Wai Tse, Stephen David Reddy, Young-Sup Lee, John Scowcroft