Patents by Inventor Yasuhiro Hiai

Yasuhiro Hiai 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).

  • Phase difference enhanced imaging method (PADRE), functional image creating method, phase difference enhanced imaging program, phase difference enhanced imaging apparatus, functional image creating apparatus, and magnetic resonance imaging (MRI) apparatus
    Patent number: 8829902
    Abstract: A functional image creating method and a functional image creating apparatus, each enabling rendering of an activated region, are provided. A phase difference image PDr(x) is created using a complex image ?r(x) created from an MR signal in an inactive state and a complex image ??r(x) obtained by filtering the complex image ?r(x). A phase difference image PDa(x) is created using a complex image ?a(x) created from an MR signal in an active state and a complex image ??a(x) obtained by filtering the complex image ?a(x). Function signal images diff1(x) and diff2(x) are created using the phase difference images PDr(x) and PDa(x), respectively. A magnitude image Mr(x), a magnitude image Ma(x), a standard image, or a morphological image I(x) is masked with the function signal image diff1(x) or diff2(x), thereby a function image I?(x) with an activated region rendered is created.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: September 9, 2014
    Assignee: National University Corporation Kumamoto University
    Inventors: Tetsuya Yoneda, Yasuhiro Hiai
  • PHASE DIFFERENCE ENHANCED IMAGING METHOD (PADRE), FUNCTIONAL IMAGE CREATING METHOD, PHASE DIFFERENCE ENHANCED IMAGING PROGRAM, PHASE DIFFERENCE ENHANCED IMAGING APPARATUS, FUNCTIONAL IMAGE CREATING APPARATUS, AND MAGNETIC RESONANCE IMAGING (MRI) APPARATUS
    Publication number: 20110304330
    Abstract: A functional image creating method and a functional image creating apparatus, each enabling rendering of an activated region, are provided. A phase difference image PDr(x) is created using a complex image ?r(x) created from an MR signal in an inactive state and a complex image ??r(x) obtained by filtering the complex image ?r(x). A phase difference image PDa(x) is created using a complex image ?a(x) created from an MR signal in an active state and a complex image ??a(x) obtained by filtering the complex image ?a(x). Function signal images diff1(x) and diff2(x) are created using the phase difference images PDr(x) and PDa(x), respectively. A magnitude image Mr(x), a magnitude image Ma(x), a standard image, or a morphological image I(x) is masked with the function signal image diff1(x) or diff2(x), thereby a function image I?(x) with an activated region rendered is created.
    Type: Application
    Filed: December 11, 2009
    Publication date: December 15, 2011
    Applicant: NATIONAL UNIVERSITY CORPORATION KUMAMOTO UNIVERSITY
    Inventors: Tetsuya Yoneda, Yasuhiro Hiai