Patents Represented by Attorney Sughrue Mio, PLLC

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  • Photochemically refractive-index-changing polymer, photochemically refractive-index-changing polymer composition, and method of refractive index regulation
    Patent number: 7566745
    Abstract: A subject for the invention is to provide a method of refractive index regulation by which the refractive index of an optical polymer molding can be efficiently changed without necessitating a complicated step, such as the step of oxidizing beforehand, and which when used for producing an optical device, imparts excellent transparency thereto. Another subject is to provide a photochemically refractive-index-changing polymer or photochemically refractive-index-changing polymer composition for use in the method.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: July 28, 2009
    Assignee: Nitto Denko Corporation
    Inventors: Yoshihide Kawaguchi, Yutaka Moroishi, Tetsuo Inoue, Kazunori Mune