Patents by Inventor Kazufumi Ito

Kazufumi Ito 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 detecting defect in material and system for the method
    Patent number: 8506159
    Abstract: A defect on the surface or in the surface layer of a moving material can be detected by using a method comprising steps of: heating the surface of the material, obtaining thermal image data of the surface of the material using an infrared thermography camera while the surface of the material is being heated up at the heating step or being cooled down after heating, and detecting the defect by calculating Laplacian with respect to temperature of the surface represented by the thermal image data. When the thermal image data is obtained while the material is being heated up, a heating device and the camera is arranged so that thermal energy emitted from the heating device is reflected by the material to come into the camera.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: August 13, 2013
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Junichi Nakagawa, Tadayuki Ito, Tetsuo Nishiyama, Masahiro Doki, Kozo Saito, Belal Gharaibeh, Keng Hoo Chuah, Ahmad Salaimeh, Masahiro Yamamoto, Tomoya Takeuchi, Kazufumi Ito, Huaxiong Huang, Sean C. Bohun
  • METHOD FOR DETECTING DEFECT IN MATERIAL AND SYSTEM FOR THE METHOD
    Publication number: 20110249700
    Abstract: A defect on the surface or in the surface layer of a moving material can be detected by using a method comprising steps of: heating the surface of the material, obtaining thermal image data of the surface of the material using an infrared thermography camera while the surface of the material is being heated up at the heating step or being cooled down after heating, and detecting the defect by calculating Laplacian with respect to temperature of the surface represented by the thermal image data. When the thermal image data is obtained while the material is being heated up, a heating device and the camera is arranged so that thermal energy emitted from the heating device is reflected by the material to come into the camera.
    Type: Application
    Filed: September 17, 2008
    Publication date: October 13, 2011
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Junichi Nakagawa, Tadayuki Ito, Tetsuo Nishiyama, Masahiro Doki, Kozo Saito, Belal Gharaibeh, Keng Hoo Chuah, Ahmad Salaimeh, Masahiro Yamamoto, Tomoya Takeuchi, Kazufumi Ito, Huaxiong Huang, Sean C. Bohun