Patents by Inventor Shoji Aono

Shoji Aono 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).

  • Polyester resin composition, production method thereof and laminate polyester film
    Patent number: 9238710
    Abstract: The present invention is a composition containing a polyester resin containing at least an alicyclic dicarboxylic acid component and an alicyclic diol component, and it is a polyester resin composition which satisfies that a glass transition temperature is 65° C. or more and 90° C. or less, a refractive index at sodium D line is 1.500 or more and 1.570 or less, a titanium element content is 5 ppm or more and 500 ppm or less, a phosphorus element content is 50 ppm or more and 500 ppm or less and a gel fraction is 50% or less. By the present invention, it is possible to obtain a polyester resin composition having a low refractive index and photoelastic coefficient, and in which a thermally degraded foreign substance is reduced.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: January 19, 2016
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Hitoshi Yoshimura, Shoji Aono, Jun Sakamoto, Yuzo Shimizu, Hiroji Kojima
  • POLYESTER RESIN COMPOSITION, PRODUCTION METHOD THEREOF AND LAMINATE POLYESTER FILM
    Publication number: 20100178524
    Abstract: The present invention is a composition containing a polyester resin containing at least an alicyclic dicarboxylic acid component and an alicyclic diol component, and it is a polyester resin composition which satisfies that a glass transition temperature is 65° C. or more and 90° C. or less, a refractive index at sodium D line is 1.500 or more and 1.570 or less, a titanium element content is 5 ppm or more and 500 ppm or less, a phosphorus element content is 50 ppm or more and 500 ppm or less and a gel fraction is 50% or less. By the present invention, it is possible to obtain a polyester resin composition having a low refractive index and photoelastic coefficient, and in which a thermally degraded foreign substance is reduced.
    Type: Application
    Filed: September 5, 2007
    Publication date: July 15, 2010
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Hitoshi Yoshimura, Shoji Aono, Jun Sakamoto, Yuzo Shimizu, Hiroji Kojima