Patents by Inventor Chris Jonkman

Chris Jonkman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Capillary cartridge for miniaturized nuclear magnetic resonance (NMR) devices
    Patent number: 8847596
    Abstract: A shim coil assembly for positioning shim coils in a narrow gap between magnetic poles of miniature NMR devices around the magnetic center includes electric traces on multiple levels of printed circuit board layers in various, overlapping configurations. Mirror image shim coils can be connected in series in a symmetric sense or connected in series in a antisymmetric sense.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: September 30, 2014
    Assignee: picoSpin, LLC
    Inventors: John C. Price, Michael Steinbach, Chris Jonkman
  • Shim coils and shimming miniaturized nuclear magnetic resonance magnets
    Patent number: 8729898
    Abstract: A capillary cartridge assembly for positioning a sample fluid at a geometric center between juxtaposed pole pieces of a NMR magnet assembly for NMR analysis comprises a capillary captured in a channel in a printed circuit board assembly that is sized to fit between the pole pieces. The assembly includes a RF coil surrounding a portion of the capillary. Electric traces shaped to function as shim coils can be included in the printed circuit board. An end of the printed circuit board includes electrically conductive contacts that plug into a receptacle to connect the RF coil and traces to external electrical circuitry when the RF coil is in the geometric center. The capillary can be a continuous flow-through capillary or a closed cartridge.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: May 20, 2014
    Assignee: Picospin, LLC
    Inventors: John C. Price, Chris Jonkman
  • CAPILLARY CARTRIDGE FOR MINIATURIZED NUCLEAR MAGNETIC RESONANCE (NMR) DEVICES
    Publication number: 20120001636
    Abstract: A shim coil assembly for positioning shim coils in a narrow gap between magnetic poles of miniature NMR devices around the magnetic center includes electric traces on multiple levels of printed circuit board layers in various, overlapping configurations. Mirror image shim coils can be connected in series in a symmetric sense or connected in series in a antisymmetric sense.
    Type: Application
    Filed: June 28, 2011
    Publication date: January 5, 2012
    Inventors: John C. Price, Michael Steinbach, Chris Jonkman
  • SHIM COILS AND SHIMMING MINIATURIZED NUCLEAR MAGNETIC RESONANCE MAGNETS
    Publication number: 20110316535
    Abstract: A capillary cartridge assembly for positioning a sample fluid at a geometric center between juxtaposed pole pieces of a NMR magnet assembly for NMR analysis comprises a capillary captured in a channel in a printed circuit board assembly that is sized to fit between the pole pieces. The assembly includes a RF coil surrounding a portion of the capillary. Electric traces shaped to function as shim coils can be included in the printed circuit board. An end of the printed circuit board includes electrically conductive contacts that plug into a receptacle to connect the RF coil and traces to external electrical circuitry when the RF coil is in the geometric center. The capillary can be a continuous flow-through capillary or a closed cartridge.
    Type: Application
    Filed: June 28, 2011
    Publication date: December 29, 2011
    Inventors: John C. Price, Chris Jonkman