Patents by Inventor Mutsuo Aoyagi

Mutsuo Aoyagi 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).

  • Near-infrared sensitive phthalocyanine-polymer compositions
    Patent number: 4816386
    Abstract: A novel near-infrared sensitive phthalocyanine-polymer composition comprises a substituted aluminum phthalocyanine and a polymer wherein substituted aluminum phthalocyanine dimers and/or dimer aggregates which are responsible to the near-infrared sensitivity, are included.The near-infrared sensitive phthalocyanine-polymer composition has useful characteristics:(A) when the near-infrared sensitive phthalocynaine-polymer composition is heated above the T.sub.g (Glass Transition Temperature) of the polymer either by direct heating and by absorbing irradiated light energy, optical properties of said near-infrared sensitive phthalocyanine-polymer composition; absorbance and/or reflectivity, are capable of being changed,(B) the thermal change of optical properties of the near-infrared sensitive phthalocyanine-polymer composition can be fixed by further heating above the T.sub.f (Thermal Fixation Temperature) higher than the T.sub.
    Type: Grant
    Filed: January 5, 1987
    Date of Patent: March 28, 1989
    Assignee: Toray Industries, Inc.
    Inventors: Tetsuya Gotoh, Tosiyuki Kondoh, Mutsuo Aoyagi