Patents by Inventor Masayuki Yasumi

Masayuki Yasumi 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).

  • X-ray radiographic apparatus, X-ray restrictor, and X-ray radiographic method
    Patent number: 7012990
    Abstract: A switching mechanism is configured such that a lower limb radiographic filter 11a is moved inside a radiation field of the X-rays that is an opening portion of an X-ray movable restriction only when radiographing a region of a subject from the groin to the toe, or the filter is moved outside the radiation field when radiographing the lumbar region of the subject. With this switching mechanism thus constituted, it is possible to lighten a burden on the operator, and realize the X-ray radiographic apparatus having high universality.
    Type: Grant
    Filed: January 18, 2005
    Date of Patent: March 14, 2006
    Assignee: Shimadzu Corporation
    Inventors: Kouji Akutsu, Wataru Miyamoto, Masayuki Yasumi, Tetsu Nakayama, Isao Nakata, Mitsuru Umeda
  • X-ray radiographic apparatus, X-ray restrictor, and X-ray radiographic method
    Publication number: 20050123101
    Abstract: A switching mechanism is configured such that a lower limb radiographic filter 11a is moved inside a radiation field of the X-rays that is an opening portion of an X-ray movable restriction only when radiographing a region of a subject from the groin to the toe, or the filter is moved outside the radiation field when radiographing the lumbar region of the subject. With this switching mechanism thus constituted, it is possible to lighten a burden on the operator, and realize the X-ray radiographic apparatus having high universality.
    Type: Application
    Filed: January 18, 2005
    Publication date: June 9, 2005
    Applicant: SHIMADZU CORPORATION
    Inventors: Kouji Akutsu, Wataru Miyamoto, Masayuki Yasumi, Tetsu Nakayama, Isao Nakata, Mitsuru Umeda
  • X-ray radiographic apparatus, X-ray restrictor, and X-ray radiographic method
    Patent number: 6898271
    Abstract: A switching mechanism is configured such that a lower limb radiographic filter 11a is moved inside a radiation field of the X-rays that is an opening portion of an X-ray movable restriction only when radiographing a region of a subject from the groin to the toe, or the filter is moved outside the radiation field when radiographing the lumber region of the subject. With this switching mechanism thus constituted, it is possible to lighten a burden of the operator, and realize the X-ray radiographic apparatus having high universality.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: May 24, 2005
    Assignee: Shimadzu Corporation
    Inventors: Kouji Akutsu, Wataru Miyamoto, Masayuki Yasumi, Tetsu Nakayama, Isao Nakata, Mitsuru Umeda
  • X-ray radiographic apparatus, X-ray restrictor, and X-ray radiographic method
    Publication number: 20040005031
    Abstract: A switching mechanism is configured such that a lower limb radiographic filter 11a is moved inside a radiation field of the X-rays that is an opening portion of an X-ray movable restriction only when radiographing a region of a subject from the groin to the toe, or the filter is moved outside the radiation field when radiographing the lumber region of the subject. With this switching mechanism thus constituted, it is possible to lighten a burden of the operator, and realize the X-ray radiographic apparatus having high universality.
    Type: Application
    Filed: April 1, 2003
    Publication date: January 8, 2004
    Applicant: SHIMADZU CORPORATION
    Inventors: Kouji Akutsu, Wataru Miyamoto, Masayuki Yasumi, Tetsu Nakayama, Isao Nakata, Mitsuru Umeda