Patents by Inventor Tetsuo Norimine

Tetsuo Norimine 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).

  • Charged particle irradiation apparatus and an operating method thereof
    Patent number: 5986274
    Abstract: A charged particle irradiation apparatus, which is capable of decreasing a lateral dose falloff at boundaries of irradiation field of charged particle beam, and reducing the size of the charged particle irradiation apparatus, is provided by controlling magnetic fields of quadrupole electromagnets 1-5 and deflection electromagnets 6-8 so that center of the charged particle beam passes always center of a scatterer irrespective of direction and intensity of a magnetic field generated by scanning electromagnets 50, 60.
    Type: Grant
    Filed: February 3, 1998
    Date of Patent: November 16, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Akiyama, Kazuo Hiramoto, Koji Matsuda, Tetsuo Norimine