General Electric Company

Other

Juliana Chiang Shei

Mark Gilbert Benz

Bulent Aksel

Gerald Burt Kliman

Judson Sloan Marte

Evangelos Trifon Laskaris

Yuji Inoue

Kathleen Melanie Amm

Israel S Jacobs

Harold Jay Patchen

Liang Li

Paul Shadworth Thompson

Ralph James Carl, Jr

Ni De Zhen

Wang Biao

Chen Pei Xin

A method of manufacturing a magnetic resonance imaging (MRI) device is provided including providing at least one magnet positioned between a keeper device and a yoke, the keeper device being positioned at a pole region of the at least one magnet, positioning at least one pole device at the pole region of the at least one magnet, and removing the keeper device from the pole region to allow the at least one pole device to be positioned at the pole region of the at least one magnet.

Method of manufacturing a pole face for a permanent magnet MRI system with laminated structure

A method of making a permanent magnet body is provided. The method includes providing a first precursor body comprising a plurality of blocks and magnetizing the first precursor body to form a first permanent magnet body. A recoil magnetization pulse may be applied to the permanent magnet body after the magnetization. The precursor body may be heated during magnetization. A power supply containing a battery may be used to energize a pulsed magnet used to magnetize the precursor body.

Method and apparatus for magnetizing a permanent magnet

Pole face for permanent magnet MRI with laminated structure

A Fe&mdash;B&mdash;R type permanent magnetic, consisting of: 13-19 atomic % R, where R consists essentially of a mixture of rare earth elements Nd and/or Pr, and Ce, where Ce is between 0.2 and 5.0 wt. % of R; 4-20 atomic % B, and the balance comprising Fe. In a preferred aspect, R comprises 15-16 atomic % B; of which Ce is approximately 0.5% and the remaining rare earths Pr and Nd are in a ratio of 3:1. A process of producing a Fe&mdash;B&mdash;R permanent magnet as described above, and a Fe&mdash;B&mdash;R magnetic material made by such process.

Permanent magnetic materials of the Fe-B-R tpe, containing Ce and Nd and/or Pr, and process for manufacture

Permanent magnets, devices including permanent magnets and methods for manufacture are described with the permanent magnet comprising, for example: iron-boron-rare earth alloy particulate having an intrinsic coercive force of at least about 1591 kiloamperes/meter (about 20 kiloOersteds) and a residual magnetization of at least about 0.8 tesla (about 8 kiloGauss), wherein the rare earth content comprises praseodymium, a light rare earth element selected from the group consisting of cerium, lanthanum, yttrium and mixtures thereof, and balance neodymium; and a binder bonding the particulate.

Permanent magnet for electromagnetic device and method of making

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Niskayuna, NY, United States of America

Juliana Chiang Shei