Patents by Inventor Kunio Yonekura

Kunio Yonekura 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 measuring height of lack of penetration and ultrasonic flaw detector
    Patent number: 9612226
    Abstract: A method for measuring the degree of fusion involves: a step for creating a dividing pulse amplitude curve by using a probe that emits ultrasound beams; a step for scanning the probe that emits ultrasound beams at a predetermined angle on a surface that has weld beads of multiple welding specimens having different degrees of fusion and for obtaining beam path length information from the dividing pulse amplitude curve and the height of an F echo that returned to the probe after hitting the fused section of a welding site; and a step for obtaining a regression formula expressing the relationship between the beam path length information and the degree of fusion.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: April 4, 2017
    Assignees: IHI Infrastructure Systems Co., Ltd., IHI Corporation
    Inventors: Yuji Takeda, Takahiro Yamagami, Kunio Yonekura, Hiroaki Hatanaka, Hiroki Kawai, Arisa Yanagihara
  • METHOD FOR MEASURING HEIGHT OF LACK OF PENETRATION AND ULTRASONIC FLAW DETECTOR
    Publication number: 20150300992
    Abstract: A method for measuring the degree of fusion involves: a step for creating a dividing pulse amplitude curve by using a probe that emits ultrasound beams; a step for scanning the probe that emits ultrasound beams at a predetermined angle on a surface that has weld beads of multiple welding specimens having different degrees of fusion and for obtaining beam path length information from the dividing pulse amplitude curve and the height of an F echo that returned to the probe after hitting the fused section of a welding site; and a step for obtaining a regression formula expressing the relationship between the beam path length information and the degree of fusion.
    Type: Application
    Filed: July 31, 2013
    Publication date: October 22, 2015
    Inventors: Yuji Takeda, Takahiro Yamagami, Kunio Yonekura, Hiroaki Hatanaka, Hiroki Kawai, Arisa Yanagihara