1
Xianrui Huang, Phillip William Eckels: Quench protection for persistant superconducting magnets for magnetic resonance imaging. General Electric Company, Irving M Freedman, Christian G Cabou, Phyllis Y Price, November 14, 2000: US06147844 (33 worldwide citation)

A quench protection circuit for the series connected but spatially separated magnet coils of a superconducting magnet utilizes a parallel circuit of multiple heaters and reverse connected diodes shunting portions of the series connected magnets coils with the heaters physically positioned in thermal ...


2
Evangelos Laskaris, Xianrui Huang, Michele Dollar Ogle: Conduction cooled passively-shielded MRI magnet. General Electric Company, Foley & Lardner, August 31, 2004: US06783059 (26 worldwide citation)

A magnetic resonance imaging (MRI) device for imaging a volume is provided with at least one main magnet for generating a magnetic field, and at least one gradient coil for manipulating the magnetic field generated by the at least one main magnet to image the volume. The magnetic fields generated by ...


3
Xianrui Huang, Evangelos Trifon Laskaris, Kathleen Melanie Amm, Bruce Campbell Amm, Michael Anthony Palmo Jr: Permanent magnet assembly with movable permanent body for main magnetic field adjustable. General Electric Company, Fletcher Yoder, December 12, 2006: US07148689 (19 worldwide citation)

A permanent magnet assembly comprising a fixed permanent magnet body and a movable permanent magnet body which is movable relative to the fixed permanent magnet body.


4
Kathleen Melanie Amm, Evangelos Trifon Laskaris, Paul Shadforth Thompson, Bulent Aksel, Bruce Campbell Amm, Michael Anthony Palmo Jr, Johannes Martinus Van Oort, Xianrui Huang: Multiple ring polefaceless permanent magnet and method of making. General Electric Company, Jason K Klindtworth, September 9, 2008: US07423431 (18 worldwide citation)

A permanent magnet assembly for an imaging apparatus having a permanent magnet body having a first surface and a stepped second surface which is adapted to face an imaging volume of the imaging apparatus, wherein the stepped second surface contains at least four steps.


5
Xianrui Huang, Yehia M Eyssa: High efficiency DC/DC current source converter. Wisconsin Alumni Research Foundation, Foley & Lardner, January 19, 1993: US05181170 (18 worldwide citation)

A DC to DC converter has a transformer with a highly coupled primary and secondary, a first switch connected in series between a current source and the primary, a second switch connected across the current source in parallel with the first switch and the primary, a rectifier connected to rectify the ...


6
Evangelos Trifon Laskaris, Xianrui Huang, Paul St Mark Shadforth Thompson: Low field loss cold mass structure for superconducting magnets. General Electric Company, Fletcher Yoder, May 30, 2006: US07053740 (18 worldwide citation)

A structure for superconducting magnets is provided. The structure includes a thermally conductive electrically resistive composite bobbin, a superconducting coil disposed around the thermally conductive electrically resistive composite bobbin for conducting current in a superconductive state. The s ...


7
Minfeng Xu, Xianrui Huang, Bu Xin Xu, Jinhua Huang: Balanced quench protection circuit. GE Medical Systems Global Technology Company, Collard & Roe P C, April 6, 2004: US06717781 (17 worldwide citation)

A superconducting magnet electrical circuit is provided for quench protection. A superconducting coil assemblage is provided including a plurality of spatially separated main and secondary magnet coil portions. The main magnet coil portions are connected in series to form at least one main coil seri ...


8
Phillip William Eckels, Richard Thomas Hackett, Gregory F Hayworth, Xianrui Huang, Clifford J Ginfrida, Gregory Alan Lehmann, John Scaturro Jr, Bu Xin Xu: Superconducting magnet split cryostat interconnect assembly. General Electric Company, Irving M Freedman, Christian G Cabou, Phyllis Y Price, September 18, 2001: US06289681 (16 worldwide citation)

A multi purpose interconnect assembly between upper and lower helium vessels in a recondensing superconducting magnet to provide isothermal connections to extend the ride-through period, and to provide for helium liquid and gas passage, electrical interconnections, and to accommodate differential th ...


9
Robert Henry Becker Jr, Gregory F Hayworth, Kenneth Gordon Herd, Xianrui Huang, Peter Angus Morgan, Richard Andrew Ranze, Minfeng Xu: Magnetic resonance imaging passively shimmed superconducting magnet assembly. General Electric Company, Irving M Freedman, Christian G Cabou, Phyllis Y Price, December 7, 1999: US05999076 (16 worldwide citation)

A passive shimming system for a superconducting magnet to improve bore magnetic homogeneity includes a plurality of axially extending non-magnetic drawers each including a plurality of pockets along the drawer with a securable cover for each pocket to enclose the selected ferromagnetic shim disks an ...


10
Evangelos Laskaris, Xianrui Huang, Michele Dollar Ogle: Conduction cooled passively-shielded MRI magnet. General Electric Company, Jean K Testa, Christian G Cabou, February 7, 2006: US06995562 (14 worldwide citation)

A magnetic resonance imaging (MRI) device for imaging a volume is provided with at least one main magnet for generating a magnetic field, and at least one gradient coil for manipulating the magnetic field generated by the at least one main magnet to image the volume. The magnetic fields generated by ...