Patents by Inventor Motonari Nasuhara

Motonari Nasuhara 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).

  • Method and apparatus for stabilizing uniformity of static magnetic field in magnetic resonance imaging apparatus
    Patent number: 5155436
    Abstract: Method and apparatus of stabilizing uniformity of a static magnetic field in a magnetic resonance imaging apparatus, wherein before adjustment of uniformity of the static magnetic field and before each actual imaging operation, pulse-like gradient magnetic fields are applied to a static magnetic field generating magnetic circuit at a maximum output level of power supplies for generation of gradient magnetic fields so as to magnetize the static magnetic field generating magnetic circuit to constant magnetization intensity.
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: October 13, 1992
    Assignee: Hitachi Medical Corporation
    Inventors: Katsunori Suzuki, Tsuneo Maeda, Motonari Nasuhara, Shigeru Sato
  • Magnetic resonance imaging scanner
    Patent number: D325632
    Type: Grant
    Filed: March 21, 1990
    Date of Patent: April 21, 1992
    Assignee: Hitachi Medical Co., Ltd.
    Inventors: Hiroyuki Kogane, Akitaka Takeuchi, Tsuneo Maeda, Motonari Nasuhara