Patents by Inventor Andrew Mark Spring

Andrew Mark Spring 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).

  • POLYMER COMPOSITION CONTAINING ORGANIC NONLINEAR OPTICAL COMPOUND
    Publication number: 20150133588
    Abstract: There is provided a polymer matrix that can suppress the orientational relaxation of an organic nonlinear optical compound, and a composition containing this polymer matrix and an organic nonlinear optical compound, and an optical material obtained by using the composition. A composition including: a norbornene imide polymer having a structural unit of Formula [1]; and an organic nonlinear optical compound: (where R1 is a C1-12 alkyl group optionally having a substituent or a C6-10 aryl group optionally having a substituent).
    Type: Application
    Filed: May 14, 2013
    Publication date: May 14, 2015
    Inventors: Shiyoshi Yokoyama, Kazuhiro Yamamoto, Andrew Mark Spring, Daisuke Maeda, Masaaki Ozawa, Keisuke Odoi