Patents by Inventor Jiann T. Lin

Jiann T. Lin 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).

  • Poled polymeric nonlinear optical materials
    Patent number: 5371173
    Abstract: The synthesis of a nonlinear chromophoric co-monomer 3,5-diamino-4'-nitrodiphenylamine and use as a reactive component in combination with a bismaleimide monomer in a NLO-active polyimide matrix is disclosed. After concurrent corona or contact poling and thermal polymerization, thin films of these chromophoric polyimides exhibit high second harmonic generation efficiencies and high DSC-determined glass transition temperatures. These poled polyimides also exhibit excellent SHG temporal stability, retaining 85-90% of the initial second harmonic efficiency after more than one month in air at 85.degree. C.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: December 6, 1994
    Assignee: Northwestern University
    Inventors: Tobin J. Marks, Michael A. Hubbard, Jiann T. Lin