Patents by Inventor Yuji Kurotani

Yuji Kurotani 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).

  • Method for evaluating polymer material
    Patent number: 9000367
    Abstract: Provided is a method for evaluating a polymer material, wherein the state of dispersion of a filler in a polymer material can be quickly and quantitatively evaluated. The method for evaluating a polymer material which is a polymer material containing the polymer compound and the filler and of which at least an upper surface is a flat surface. The polymer material 1 is cut in a direction at an angle ? of 1 to 60° with respect to the surface of the polymer material using a focused ion beam (FIB) 10, and a smooth surface 1A of the polymer material, formed by the cutting, is then photographed in a direction perpendicular to the smooth surface.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: April 7, 2015
    Assignee: Bridgestone Corporation
    Inventors: Satoshi Nakamura, Yuji Kurotani, Tatsuro Tanabe, Takaaki Igarashi
  • METHOD FOR EVALUATING POLYMER MATERIAL
    Publication number: 20130306865
    Abstract: Provided is a method for evaluating a polymer material, wherein the state of dispersion of a filler in a polymer material can be quickly and quantitatively evaluated. The method for evaluating a polymer material which is a polymer material containing the polymer compound and the filler and of which at least an upper surface is a flat surface. The polymer material 1 is cut in a direction at an angle ? of 1 to 60° with respect to the surface of the polymer material using a focused ion beam (FIB) 10, and a smooth surface 1A of the polymer material, formed by the cutting, is then photographed in a direction perpendicular to the smooth surface.
    Type: Application
    Filed: February 8, 2012
    Publication date: November 21, 2013
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Satoshi Nakamura, Yuji Kurotani, Tatsuro Tanabe, Takaaki Igarashi