Patents by Inventor Yohei Shintaku

Yohei Shintaku 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).

  • Patent number: 8559696
    Abstract: Scattered waves from the defect of burst ultrasonic waves radiated from an ultrasonic transmitter to a structure in two different arrangements of the ultrasonic transmitter and an array receiver are received by the array receiver so as to obtain a reception signal. The reception signal is subjected to a band-pass filter that passes a specific frequency component, shifted by different time according to the position of each reception sensor element of the array receiver and then, added so as to obtain a processing signal. On the basis of the processing signal, an image of the defect is obtained, respectively. A common portion of the obtained two images is extracted.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: October 15, 2013
    Assignee: Tohoku University
    Inventors: Kazushi Yamanaka, Yoshikazu Ohara, Yohei Shintaku
  • Publication number: 20110123119
    Abstract: Scattered waves from the defect of burst ultrasonic waves radiated from an ultrasonic transmitter to a structure in two different arrangements of the ultrasonic transmitter and an array receiver are received by the array receiver so as to obtain a reception signal. The reception signal is subjected to a band-pass filter that passes a specific frequency component, shifted by different time according to the position of each reception sensor element of the array receiver and then, added so as to obtain a processing signal. On the basis of the processing signal, an image of the defect is obtained, respectively. A common portion of the obtained two images is extracted.
    Type: Application
    Filed: May 19, 2009
    Publication date: May 26, 2011
    Applicant: TOHOKU UNIVERSITY
    Inventors: Kazushi Yamanaka, Yoshikazu Ohara, Yohei Shintaku