Patents by Inventor Seiji SOEDA

Seiji SOEDA 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).

  • Scanning magnet and particle therapy system
    Patent number: 11742105
    Abstract: A scanning magnet that deflects a charged particle beam has a winding U provided with grooves SL1 and SL4 provided at facing positions. A passing direction of a conductive wire forming the winding U passes through the groove SL1 in a ?-axis positive direction, and passes through the groove SL4 in a ?-axis negative direction. The winding U has a loop path SL1-SL4 in which the groove SL1 is directed to the ?-axis positive direction, and the groove SL4 is directed to the ?-axis negative direction. When a current flows in the ?-axis positive direction in a winding section U+ disposed in the groove SL1, a current flows in the ?-axis negative direction in a winding section U? disposed in the groove SL4. A yoke, the winding U, a winding V, and a winding W have a 120° rotationally symmetric structure with respect to a central axis of the yoke.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: August 29, 2023
    Assignee: HITACHI, LTD.
    Inventors: Takahiro Yamada, Takuya Nomura, Seiji Soeda
  • SCANNING MAGNET AND PARTICLE THERAPY SYSTEM
    Publication number: 20220181042
    Abstract: A scanning magnet that deflects a charged particle beam has a winding U provided with grooves SL1 and SL4 provided at facing positions. A passing direction of a conductive wire forming the winding U passes through the groove SL1 in a ?-axis positive direction, and passes through the groove SL4 in a ?-axis negative direction. The winding U has a loop path SL1-SL4 in which the groove SL1 is directed to the ?-axis positive direction, and the groove SL4 is directed to the ?-axis negative direction. When a current flows in the ?-axis positive direction in a winding section U+ disposed in the groove SL1, a current flows in the ?-axis negative direction in a winding section U? disposed in the groove SL4. A yoke, the winding U, a winding V, and a winding W have a 120° rotationally symmetric structure with respect to a central axis of the yoke.
    Type: Application
    Filed: June 30, 2020
    Publication date: June 9, 2022
    Inventors: Takahiro YAMADA, Takuya NOMURA, Seiji SOEDA