Patents Examined by Jay Patidar
  • Patent number: 11187665
    Abstract: A method determines a calibration specification specifying a functional correlation between an NMR measurement variable, determined using an NMR measuring device, for a material to be analyzed and a humidity contained in the material to be analyzed. The method includes provision of a relaxation curve of the material having a known humidity; determination of a relaxation time distribution from the relaxation curve provided; and determination of an approximate relaxation time distribution relative to at least one other humidity. The at least one other humidity is less than the known humidity.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: November 30, 2021
    Assignee: Robert Bosch GmbH
    Inventor: Markus Edelmann
  • Patent number: 11181493
    Abstract: A method for determining the porosity of a core sample can include: submerging a core sample in a NMR saturation fluid, wherein the core sample has a permeability of 10 mD or less; exposing the fluid to a vacuum while the core sample is submerged the NMR saturation fluid for a sufficient period of time to saturate the core sample; removing the vacuum while maintaining the core sample submerged the NMR saturation fluid; taking a NMR measurement of fluids in the core sample; and determining a porosity of the core sample based on a correlation between the NMR measurement and a NMR signal to fluid volume calibration.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: November 23, 2021
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Pavel Kortunov, Hubert E. King, Harry W. Deckman, Shreerang S. Chhatre
  • Patent number: 11176294
    Abstract: Provided is a method of designing coils for transmitting or receiving power wirelessly. The method includes determining a length and a width of a core on which a first coil and second and third coils are disposed, and determining radii and a number of turns of the first to third coils, wherein each of the second and third coils overlaps one side of the first coil. The method further includes determining an operating frequency of the coils and a thickness of the core, determining an optimal thickness of a foil constituting the first to third coils by measuring AC resistances of the first to third coils, and determining an optimal width of the foil by measuring the AC resistances of the first to third coils, whereby an enhanced configuration of the coils is provided.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: November 16, 2021
    Assignee: HITACHI-LG DATA STORAGE KOREA, INC.
    Inventors: Hogil Lee, Hyunwook Ha
  • Patent number: 11175427
    Abstract: Systems for locating buried or hidden utilities including a portable locator and associated portable transmitter are disclosed. The portable locator may include a magnetic field measurement module for determining a current signal in the buried utility based on a received magnetic field, and a receiver module for receiving data from the portable transmitter. The portable transmitter may include a data transmitter module for sending information associated with a current signal provided to the buried utility to the portable receiver module.
    Type: Grant
    Filed: August 20, 2017
    Date of Patent: November 16, 2021
    Assignee: SEESCAN, INC.
    Inventors: Mark S. Olsson, David A. Cox, Michael J. Martin, Ray Merewether, Amos H. Jessup
  • Patent number: 11175353
    Abstract: The disclosure provides a magneto resistive field sensor for detecting position in a particular direction. The sensor includes a plurality of magneto resistive elements arranged in pairs. The elements of the same pair are arranged so that their sensitivity direction is oriented in the same direction. The elements of different pairs are oriented so that their sensitivity direction is oriented in a different direction, preferably substantially perpendicular to another pair. The magneto resistive sensors and their sensitivity directions are generally arranged in a plane, which is perpendicular to the direction of measurement of the device. The elements of each pair are arranged in series between two nodes so as to form a bridge circuit. As such, movement of the magnet in the first plane causes a substantially equal change in the elements of each pair, thereby compensating for this movement in the output signal.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: November 16, 2021
    Assignee: Analog Devices International Unlimited Company
    Inventors: Jochen Schmitt, Eoin Edward English
  • Patent number: 11168999
    Abstract: Systems, methods, and apparatuses relating to error detection in contactless position sensing are provided. An actuator moves a device between a plurality of predetermined positions. The device is contactlessly detected with a sensor when the device is connected to the actuator. The predetermined position of the device is determined with a controller based on contactless detection of the device by the sensor when the device is connected to the actuator. The device is controlled to become undetectable by the sensor when the device disconnects from the actuator.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: November 9, 2021
    Assignee: Kongsberg Inc.
    Inventors: William DeShaies, Rémi Tétreault, Bertrand Mallette
  • Patent number: 11163024
    Abstract: Position sensors, including linear position sensors, that utilize magnetic field(s) are disclosed. Disclosed sensors include flux emitters and sensor assemblies. The sensor assemblies include flux collectors that interact with magnetic fields from flux emitters and with a magnetism sensing device. Flux emitters have arrangements of magnets that when combined with the sensor assembly can provide a constantly increasing or a constantly decreasing signal across a range of relative movement.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: November 2, 2021
    Assignee: MANDO CORPORATION
    Inventors: Mazharul Chowdhury, Mohammad Islam, Christian Ross
  • Patent number: 11163006
    Abstract: A hybrid battery charger-testing device is described being a modification of a battery charger having a DC output stage, and a boost converter added to the DC output stage of the charger, the boost converter being configured to output pulses and/or a continuous AC wave for testing a battery. The hybrid charger can be used to output a purely AC test wave, e.g. sinusoidal wave for an electrochemical impedance spectroscopy test, to output pulses such as HPPC pulses and/or to perform GITT or incremental charge tests. For example, determination of battery parameters by diagnostic testing can be achieved by combining the existing functionality of a battery charger with test procedures involving currents much lower than used during charging of the battery or of returning battery energy to the electricity grid.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: November 2, 2021
    Assignee: VITO NV
    Inventors: Peter Coenen, Sven De Breucker, Grietus Mulder
  • Patent number: 11156674
    Abstract: A method and system of measuring a direct current magnetic field using a plurality of spin centers are disclosed. A spin bath associated with the spin centers may be driven with a first source of electromagnetic radiation to reduce dephasing of the spin centers. The spin centers may be measured using double quantum (DQ) magnetometry in order to reduce the effects of crystal strain on spin dephasing times. An electromagnetic response of at least one of the plurality of spin centers may be observed using an electromagnetic radiation collection device. Accordingly, up to an eight times improvement in DC field sensitivity may be accomplished for a spin center ensemble.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: October 26, 2021
    Assignee: President and Fellows of Harvard College
    Inventors: Connor A. Hart, Erik Bauch, Ronald L. Walsworth, Matthew James Turner, Jennifer May Schloss, John Francis Barry
  • Patent number: 11156570
    Abstract: A method for determining the fluid mobility of a core sample can include: determining a porosity of a core sample having a permeability of 10 mD or less; saturating the core sample with a NMR saturation fluid; taking a first NMR measurement of fluids in the core sample; diffusionally exchanging a hydrophobic fluid or a hydrophilic fluid in the core sample in a hydrophobic NMR exchange fluid or a hydrophilic NMR exchange fluid, respectively; taking a second NMR measurement of the fluid in the core sample after diffusional exchange; and deriving a property of the core sample based on the porosity, a NMR signal to fluid volume calibration, and a comparison between the first and the second NMR measurements, the property being selected from the group consisting of a mobile oil volume, an immobile hydrocarbon volume, a mobile water volume, an immobile water volume, and a combination thereof.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: October 26, 2021
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Pavel Kortunov, Hubert E. King, Harry W. Deckman
  • Patent number: 11156737
    Abstract: Buried object locators including a locator body, an antenna node including twelve or more magnetic field antennas in a fixed position, and an electronic circuit coupled to the antenna node for generating information associated with hidden or buried utilities are disclosed.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: October 26, 2021
    Assignee: SeeScan, Inc.
    Inventors: Mark S. Olsson, Ray Merewether, Sequoyah Aldridge, Ryan B. Levin
  • Patent number: 11152804
    Abstract: A status monitor circuit for detecting the status of a DC power supply for charging a battery is provided. The status monitor circuit includes a DC bus and a failure indicator circuit. The DC bus is coupled between the DC power supply and the battery. The failure indicator circuit is configured to detect a DC voltage generated by the DC power supply on the DC bus. The failure indicator circuit includes a failure indicator and a relay configured to activate the failure indicator when the DC voltage is below a failure threshold voltage.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: October 19, 2021
    Assignee: RR Solutions LLC
    Inventor: Daniel Wayne Griffin
  • Patent number: 11143722
    Abstract: An optical-pumping magnetometer intended to measure an ambient magnetic field.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: October 12, 2021
    Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
    Inventors: Gaëtan Lieb, Agustin Palacios Laloy
  • Patent number: 11143727
    Abstract: A nuclear magnet resonance (NMR) system probes samples using a stochastically pulsed radio-frequency magnetic field. The NMR system uses active shims to compensate for spatial inhomogeneity in the bias magnetic field applied by a small permanent magnet. The active shim, made of a flexible conductor, creates a magnetic field when current is passed through it. The magnetic field created by the active shim can compensate for a first, second or third order spherical harmonic spatial inhomogeneity. The NMR system may have an array of active shims, with each active shim compensating for a spherical harmonic spatial inhomogeneity. The array of active shims may be arranged within the NMR system so as to increase power efficiency. The NMR system can accommodate a standard NMR sample tube and can be used to measure nuclear spin density or acquire an NMR spectrum.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: October 12, 2021
    Assignee: Massachusetts Institute of Technology
    Inventors: Ashley Brown Raynal, Ian W. Hunter
  • Patent number: 11145916
    Abstract: A standby state maintaining device includes a secondary battery disposed separately from a vehicle battery, a temperature sensor for the secondary battery, a charge storage member that supports charge and discharge in a temperature outside a reference range, and a controller having a first operation mode of, in a state in which a starting switch of a vehicle is off, maintaining a power saving standby state of a vehicle-mounted information apparatus by using the secondary battery when a detected value provided by the temperature sensor is within the reference range, and maintaining the power saving standby state by using the charge storage member when the detected value is outside the reference range.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: October 12, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masamitsu Ishihara, Hisanori Yamada
  • Patent number: 11137372
    Abstract: Some embodiments of the invention may include an eddy current nondestructive evaluation device. The eddy current nondestructive evaluation device may include a rotating body; a motor coupled with the rotating body such that the motor rotates the rotating body; a permanent magnet coupled with the rotating body; a pickup coil coupled with the rotating body; and an integrator circuit electrically coupled with the pickup coil that integrates a voltage from the pickup coil to produce integrated voltage data.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: October 5, 2021
    Assignee: EAGLE HARBOR TECHNOLOGIES, INC.
    Inventors: James R. Prager, Timothy M. Ziemba, Kenneth E. Miller, Ilia Slobodov, Paul Melnik, Connor Liston, Kevin Muggli, TaiSheng Yeager, John G. Carscadden
  • Patent number: 11131726
    Abstract: An apparatus for magnetic field detection includes a power supply and a plurality of magnetic field sensitive devices including at least first, second, and third magnetic field sensitive devices. The first to third magnetic field sensitive devices are coupled to each other and to the power supply such that a first supply current path runs through the first magnetic field sensitive device and not through the second magnetic field sensitive device, a second supply current path runs through the second magnetic field sensitive device and not through the first magnetic field sensitive device, and the first and second current paths run through the third magnetic field sensitive device. An internal resistance of the third magnetic field sensitive device is smaller than both an internal resistance of the first magnetic field sensitive device and an internal resistance of the second magnetic field sensitive device.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: September 28, 2021
    Inventor: Udo Ausserlechner
  • Patent number: 11131729
    Abstract: An optically pumped magnetometer device includes a first vapor cell having a light input window; a first light source configured to produce a first light beam; a first prism optic configured to receive the first light beam from the first light source and redirect the first light beam into the first vapor cell at a non-normal direction relative to the light input window of the first vapor cell; and a first light detector configured to receive the first light beam after passing through the first vapor cell. The device may also include additional light sources and light detectors which may share the prism optic and vapor cell (or utilize another prism optic or vapor cell or both).
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: September 28, 2021
    Assignee: HI LLC
    Inventor: Ethan Pratt
  • Patent number: 11131640
    Abstract: A method for determining a core sample property selected from the group consisting of a recoverable oil volume, an irreducible hydrocarbon volume, a recoverable water volume, an irreducible water volume, and any combination thereof can include: determining a porosity of a core sample, wherein the core sample has a permeability of 100 milliDarcy (mD) or less; saturating the core sample with a NMR saturation fluid; taking a first nuclear magnetic resonance (NMR) measurement of fluids in the core sample; hydraulically exchanging a hydrophobic fluid or a hydrophilic fluid in the core sample in a hydrophilic NMR exchange fluid or a hydrophobic NMR exchange fluid, respectively; taking a second NMR measurement of the fluids in the core sample after hydraulic exchange; and deriving the property of the core sample based on the porosity, a NMR signal to fluid volume calibration, and a comparison between the first and second NMR measurements.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: September 28, 2021
    Inventors: Hubert E. King, Pavel Kortunov, Harry W. Deckman, Shreerang S. Chhatre, Hemantkumar R. Sahoo, Antonio S. Buono
  • Patent number: 11125780
    Abstract: A test probe assembly for determining the integrity of a test pad of a semiconductor wafer. The test probe assembly includes a probe card, a plurality of test probes mounted to the probe card, a fiber optic lead mounted to each test probe and arranged to direct incident light toward individual test pads of the semiconductor wafer and a plurality of photodetectors arranged about the probe card. Individual photodetectors are configured to receive light reflected off a dielectric coating of the test pad corresponding to a first set of light rays emitted by the test pad and configured to receive light reflected off a metallic base of the test pad corresponding to a second set of light rays emitted by the test pad, and to generate first and second output signals associated with the first and second sets of light rays to create image data of the individual test pads.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: September 21, 2021
    Assignee: International Business Machines Corporation
    Inventors: Kushagra Sinha, Pablo Nieves, Reinaldo Vega