Patents Examined by Stephen J. Ryan
  • Magnetic field correction device with slotted passive shims
    Patent number: 5463363
    Abstract: A magnetic field correction device for enhancing magnetic uniformity of the field generated by a magnet includes plate-shaped shim elements provided with slots or holes for generating a desired corrective field component (the Bz.sup.11, the Bz.sup.21, or the Bz.sup.22 component). Thus, the shim elements exhibit the same length, thickness and width, and hence can be bundled easily together.
    Type: Grant
    Filed: October 28, 1994
    Date of Patent: October 31, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Kouichi Ogawa