Patents by Inventor Shigemi Ogawa

Shigemi Ogawa 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).

  • Beam profile measurement system
    Patent number: 10857387
    Abstract: A beam profile measurement (BPM) system is described including a BPM phantom including a tank to house liquid, a dosimeter disposed in the tank to detect ionization of a radiation beam emitted from a linear accelerator (LINAC), and a positioning device to move the dosimeter in a vertical direction. The BPM system also includes a BPM controller to operably couple to the BPM phantom and the LINAC. A method is described including positioning, using a BPM controller, a dosimeter of the BPM phantom in a first location, positioning, using the BPM controller, the LINAC in a second location, performing, using the BPM controller, a first movement of the LINAC from the second location to a third location, emitting a radiation beam from the LINAC during the first movement, and performing, via the dosimeter, an ion measurement of the radiation beam during the emitting.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: December 8, 2020
    Assignee: ACCURAY INCORPORATED
    Inventors: Jonathan McCoy, Atsushi Mitsuishi, Hidetaka Koga, Kazuyuki Kobayashi, Shigemi Ogawa, Tadashi Otani
  • BEAM PROFILE MEASUREMENT SYSTEM
    Publication number: 20180250526
    Abstract: A beam profile measurement (BPM) system is described including a BPM phantom including a tank to house liquid, a dosimeter disposed in the tank to detect ionization of a radiation beam emitted from a linear accelerator (LINAC), and a positioning device to move the dosimeter in a vertical direction. The BPM system also includes a BPM controller to operably couple to the BPM phantom and the LINAC. A method is described including positioning, using a BPM controller, a dosimeter of the BPM phantom in a first location, positioning, using the BPM controller, the LINAC in a second location, performing, using the BPM controller, a first movement of the LINAC from the second location to a third location, emitting a radiation beam from the LINAC during the first movement, and performing, via the dosimeter, an ion measurement of the radiation beam during the emitting.
    Type: Application
    Filed: March 1, 2017
    Publication date: September 6, 2018
    Inventors: Jonathan McCoy, Atsushi Mitsuishi, Hidetaka Koga, Kazuyuki Kobayashi, Shigemi Ogawa, Tadashi Otani