Patents by Inventor Brian K. Hahn

Brian K. Hahn 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).

  • Method and apparatus for modulated differential analysis
    Patent number: 5346306
    Abstract: The present invention relates to differential analytical techniques for determining the composition, phase, structure, identification or other properties of a material that undergoes a transition as function of a driving variable. As applied to differential scanning calorimetric analysis (DSC), the preferred embodiment comprises: (1) heating a sample of the material with a linear temperature ramp that is modulated with a sinusoidal heating rate oscillation; and (2) deconvoluting the resultant heat flow signal into rapidly reversible and non-rapidly reversible components.
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: September 13, 1994
    Assignee: TA Instruments, Inc.
    Inventors: Michael Reading, Brian K. Hahn, Benjamin S. Crowe
  • Method and apparatus for modulated differential analysis
    Patent number: 5224775
    Abstract: The present invention relates to differential analytical techniques for determining the composition, phase, structure, identification or other properties of a material that undergoes a transition as function of a driving variable. As applied to differential scanning calorimetric analysis (DSC), the preferred embodiment comprises: (1) heating a sample of the material with a linear temperature ramp that is modulated with a sinusoidal heating rate oscillation; and (2) deconvoluting the resultant heat flow signal into rapidly reversible and non-rapidly reversible components.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: July 6, 1993
    Assignee: TA Instruments, Inc.
    Inventors: Michael Reading, Brian K. Hahn, Benjamin S. Crowe