Patents by Inventor Chisaka NAGAMI

Chisaka NAGAMI 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: 9271681
    Abstract: According to one embodiment, an X-ray computed tomography apparatus comprises an X-ray generating unit, an X-ray detecting unit, a rotating mechanism configured to rotate the X-ray generating unit and the X-ray detecting unit, a reconstruction processing unit configured to reconstruct first images respectively corresponding to volumes, a shift detecting unit configured to detect shifts of an object image due to warp of the top within a reconstruction coordinate system of the reconstruction processing unit, which shifts respectively correspond to the first images, and a control unit configured to move an origin of the reconstruction coordinate system for each of the volumes based on each of the detected shifts and control the reconstruction processing unit to reconstruct second images, which shifts respectively correspond to the volumes from the output from the X-ray detecting unit on the reconstruction coordinate system whose origin has been moved.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: March 1, 2016
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems Corporation
    Inventors: Yoshinori Uebayashi, Chisaka Nagami, Mitsuji Inoue
  • Patent number: 9008402
    Abstract: According to one embodiment, an X-ray computed tomography apparatus comprises an X-ray generating unit, an X-ray detecting unit, a rotating mechanism configured to rotate the X-ray generating unit and the X-ray detecting unit, a reconstruction processing unit configured to reconstruct first images respectively corresponding to volumes, a shift detecting unit configured to detect shifts of an object image due to warp of the top within a reconstruction coordinate system of the reconstruction processing unit, which shifts respectively correspond to the first images, and a control unit configured to move an origin of the reconstruction coordinate system for each of the volumes based on each of the detected shifts and control the reconstruction processing unit to reconstruct second images, which shifts respectively correspond to the volumes from the output from the X-ray detecting unit on the reconstruction coordinate system whose origin has been moved.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: April 14, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Yoshinori Uebayashi, Chisaka Nagami, Mitsuji Inoue
  • Publication number: 20140133624
    Abstract: According to one embodiment, an X-ray computed tomography apparatus comprises an X-ray generating unit, an X-ray detecting unit, a rotating mechanism configured to rotate the X-ray generating unit and the X-ray detecting unit, a reconstruction processing unit configured to reconstruct first images respectively corresponding to volumes, a shift detecting unit configured to detect shifts of an object image due to warp of the top within a reconstruction coordinate system of the reconstruction processing unit, which shifts respectively correspond to the first images, and a control unit configured to move an origin of the reconstruction coordinate system for each of the volumes based on each of the detected shifts and control the reconstruction processing unit to reconstruct second images, which shifts respectively correspond to the volumes from the output from the X-ray detecting unit on the reconstruction coordinate system whose origin has been moved.
    Type: Application
    Filed: January 22, 2014
    Publication date: May 15, 2014
    Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha Toshiba
    Inventors: Yoshinori UEBAYASHI, Chisaka NAGAMI, Mitsuji INOUE
  • Publication number: 20100284628
    Abstract: According to one embodiment, an X-ray computed tomography apparatus comprises an X-ray generating unit, an X-ray detecting unit, a rotating mechanism configured to rotate the X-ray generating unit and the X-ray detecting unit, a reconstruction processing unit configured to reconstruct first images respectively corresponding to volumes, a shift detecting unit configured to detect shifts of an object image due to warp of the top within a reconstruction coordinate system of the reconstruction processing unit, which shifts respectively correspond to the first images, and a control unit configured to move an origin of the reconstruction coordinate system for each of the volumes based on each of the detected shifts and control the reconstruction processing unit to reconstruct second images, which shifts respectively correspond to the volumes from the output from the X-ray detecting unit on the reconstruction coordinate system whose origin has been moved.
    Type: Application
    Filed: April 20, 2010
    Publication date: November 11, 2010
    Inventors: Yoshinori UEBAYASHI, Chisaka NAGAMI, Mitsuji INOUE