1
William Alan Edelstein, Richard Philip Mallozzi, Robert Arvin Hedeen, Sayed Amr El Hamamsy, Mark Lloyd Miller, Paul Shadforth Thompson, Robert Adolph Ackermann, Bruce Campbell Amm, John Peter Fura, Mike James Radziun, David Edward Dean, Scott Thomas Mansell, Dewain Anthony Purgill, Robert Michael Vavrek: Low noise MRI scanner. General Electric Company, Jean K Testa, Jill M Breedlove, August 20, 2002: US06437568 (31 worldwide citation)

A low noise imaging apparatus for producing Magnetic Resonance (MR) images of a subject and for substantially minimizing acoustic noise generated during imaging is provided. The imaging apparatus comprises a magnet assembly, a gradient coil assembly, and a rf coil assembly, wherein at least one of t ...


2
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.


3
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.


4
Evangelos Trifon Laskaris, Michael Anthony Palmo, Michele Dollar Ogle, Bruce Campbell Amm: Open and shielded superconductive magnet. General Electric Company, Douglas E Erickson, Marvin Snyder, February 23, 1999: US05874882 (15 worldwide citation)

An open superconductive magnet useful in magnetic resonance imaging (MRI) applications. The magnet has two spaced apart assemblies, wherein each assembly has a magnetizable pole piece and a magnetizable ring radially spaced outwardly apart from, and at least partially longitudinally overlapping, the ...


5
Thomas Robert Raber, Judson Sloan Marte, Evangelos Trifon Laskaris, Sergio Martins Loureiro, Robert John Zabala, Bruce Alan Knudsen, Kathleen Melanie Amm, Bruce Campbell Amm, James William Bray: Superconducting wire, method of manufacture thereof and the articles derived therefrom. General Electric Company, GE Global Patent Operation, June 5, 2007: US07226894 (13 worldwide citation)

Disclosed herein is method for making a wire comprising contacting a first end of a first superconducting wire with a second end of a second superconducting wire, wherein the superconducting wire comprises a superconducting filament having a superconducting composition comprising magnesium diboride; ...


6
Evangelos Trifon Laskaris, Michael Anthony Palmo, Bu Xin Xu, Michele Dollar Ogle, Bruce Campbell Amm: Open magnet having shielding. General Electric Company, Douglas E Erickson, Marvin Snyder, November 30, 1999: US05994991 (10 worldwide citation)

An open magnet useful in magnetic resonance imaging (MRI) applications. The magnet has two spaced-apart assemblies. Each assembly has a shielding coil located longitudinally outward from a main coil, a magnetizable member not carrying an electric current and spaced apart from and proximate the main ...


7
J Anne Ryan legal representative, Evangelos Trifon Laskaris, Kathleen Melanie Amm, Bruce Alan Knudsen, Judson Sloan Marte, Thomas Robert Raber, Robert John Zabala, James William Bray, Bruce Campbell Amm, Sergio Paulo Martins Loureiro: Magnetic resonance imaging system with reduced cooling needs. General Electric Company, Jean K Testa, Curtis B Brueske, January 15, 2008: US07319327 (7 worldwide citation)

A Magnetic Resonance Imaging (MRI) system having a vacuum vessel positioned about an imaging volume, one or more high temperature superconducting coils positioned within the vacuum vessel, and a cryocooler coupled to the vacuum vessel to operate the superconducting coil at a temperature above 10 K. ...


8
Xianrui Huang, Michael Anthony Palmo Jr, Evangelos Trifon Laskaris, Bruce Campbell Amm: Open magnet with recessed field shaping coils. General Electric Company, Jean K Testa, Patrick K Patnode, January 7, 2003: US06504461 (7 worldwide citation)

A pole piece for use in an open magnet includes a magnetizable body of generally cylindrical shape and made of a ferromagnetic material with a plurality of concentrically-arranged, annular-shaped, radially spaced-apart grooves formed in the inner surface of the pole piece. A plurality of annular-sha ...


9
Xianrui Huang, Bruce Campbell Amm: Methods and apparatus for passive shimming of magnets. General Electric Company, Jean K Testa, Patrick K Patnode, August 17, 2004: US06778054 (7 worldwide citation)

A method for shimming a magnetic field of a magnet in a volume of interest, utilizing ferromagnetic pellets for shimming. The pellets are positioned in a nonmagnetic holder having a predetermined number of pellet holes. The method includes measuring the magnetic field of a magnet in a plurality of l ...


10
Bruce Campbell Amm, Bulent Aksel, Kristen Ann Wangerin: Transversely folded gradient coil. General Electric Company, Jason K Klindtworth, April 26, 2011: US07932722 (5 worldwide citation)

A gradient coil comprising: a pair of gradient coil units disposed so as to enclose a gradient axis, each gradient coil unit including: a gradient coil substrate with a primary coil section, a shield coil section, and first and second return path sections, the primary coil section disposed between t ...