Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Magnet structure or material
Reexamination Certificate
2007-01-23
2007-01-23
Barrera, Ramon M. (Department: 2832)
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Magnet structure or material
C335S306000
Reexamination Certificate
active
10909669
ABSTRACT:
To reduce the skew angle components in a dipole ring magnetic field generating device, a magnetic field generating device1is provided in which comprises: a plurality of magnet elements101to124arranged in a ring shape such that a magnetization direction of the magnet elements undergoes one rotation over half a circumference of the ring, wherein the magnet elements generate a substantially unidirectional magnetic field in a space within the ring; and corrective magnets201to204arranged on an outer edge portion forming an aperture in a Z-axis direction of the magnetic field generating device, wherein the Z-axis is defined as a central axis of the magnetic field generating device, the Y-axis is defined as a direction perpendicular to the Z-axis and parallel to the unidirectional magnetic field, and the X axis is defined as a direction perpendicular to the Z axis and the Y axis.
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European Search Report corresponding to application No. EP 04018294.1 dated Sep. 23, 2005.
Barrera Ramon M.
Myers Bigel Sibley & Sajovec P.A.
Shin-Etsu Chemical Co. , Ltd.
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