Patents by Inventor Chan-Gyu Joo

Chan-Gyu Joo 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: 20090311189
    Abstract: In one aspect, the present invention provides a method for enhancing the sensitivity of liquid-state NMR or MRI experiments. In general, the method involves providing a frozen sample in a magnetic field, wherein the frozen sample includes a polarizing agent with at least one unpaired electron and an analyte with at least one spin half nucleus; polarizing the at least one spin half nucleus of the analyte by irradiating the frozen sample with radiation having a frequency that excites electron spin transitions in the at least one unpaired electron of the polarizing agent; melting the frozen sample to produce a molten sample; and (d) detecting nuclear spin transitions in the at least one spin half nucleus of the analyte in the molten sample. In certain embodiments, the methods further comprise a step of freezing a sample in a magnetic field to provide the frozen sample in a magnetic field.
    Type: Application
    Filed: May 10, 2007
    Publication date: December 17, 2009
    Applicant: Massachusetts Institute of Technology
    Inventors: Robert G. Griffin, Kan-Nian Hu, Chan Gyu Joo
  • Patent number: 6585931
    Abstract: A manufacturing method of a molten carbonate fuel cell (MCFC) anode includes the steps of: forming a Ni coating solution for coating a surface of alumina powder by mixing nickel acetate and ethanol in a predetermined ratio, adding distilled water to the mixture in a predetermined ratio and refluxing the resultant; coating a pre-treated surface of alumina powder with the Ni coating solution; mixing a pure Ni powder and Ni-coated alumina powder obtained in the Ni coating step, and then forming a green sheet of an electrode from the mixture of pure Ni powder and Ni-coated alumina powder; and drying and sintering the electrode in a reducing atmosphere. Thus, various problems in manufacturing conventional anodes of Ni-metal alloy powder can be solved, and an anode for an MCFC having greatly enhanced creep resistance and electrode performance can be obtained.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: July 1, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ho-Iin Kweon, Keon Kim, Chan-Gyu Joo