The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 02, 1993
Filed:
Jun. 26, 1991
Michiru Fujita, Kawasaki, JP;
Fuji Electric Co., Ltd., Kawasaki, JP;
Abstract
A gradient magnetic field coil for generating a gradient magnetic field comprises at least one pair of conductive thin plates placed on a surface of a cylinder and rod conductors for supplying an electric current to at least one pair of conductive thin plates. In case of defining a body center of the cylinder to be an origin, defining a central axis of the cylinder to be a z axis, defining an axis included in the plane, intersecting at the origin and being vertical to the z axis to be an x axis and defining an axis intersecting at the origin and being vertical to the x axis and the z axis to be a y axis, at least one pair of conductive thin plates have a symmetrical shape with respect to an x-y plane and a y-z plane, and the conductive thin plates, each facing to each other, are placed in a symmetrical position with respect to an x-z plane and have a symmetrical shape with respect to an x-z plane. An electric current distribution on conductive thin plates is symmetrical with respect to an x-z plane and each electric current in conductive thin plates flow in an opposite direction to each other.