Patents Examined by Reena Aurora
  • Patent number: 10444395
    Abstract: A method and system for detecting a subsurface tunnel includes propelling an instrumented pipeline pig through a horizontal detection conduit, acquiring and analyzing magnetometer measurements and VLF EM resistivity measurements to detect distortions and/or anomalies in the Earth's magnetic field and/or VLF electromagnetic field, respectively, and correlating the data with position data of the pipeline pig to compute a parameter of a tunnel such as, for example, location, size and depth.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: October 15, 2019
    Assignee: Vinegar Technologies, LLC
    Inventor: Harold Vinegar
  • Patent number: 10444302
    Abstract: A foreign matter detecting device comprises a first yoke portion and a second yoke portion which adjoin a permanent magnet respectively. The both yoke portions are arranged while interposing a reference space therebetween. Further, a detour yoke portion is arranged. A magnetic resistance of the first detour space being smaller than a magnetic resistance of the predetermined reference space, and magnetic resistances of the second detour space and the first detour space being larger than the magnetic resistance of the predetermined reference space. A detection signal in relation to the foreign matter is outputted on the basis of a magnetic flux density provided in at least any one of spaces of the reference space and the first detour space, corresponding to an amount of retention of the foreign matter in a retaining portion which is provided so that the foreign matter is retained in the second detour space.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: October 15, 2019
    Assignee: THK CO., LTD.
    Inventor: Yoshinobu Moriyuki
  • Patent number: 10444036
    Abstract: An encoder scale S includes a substrate 10 that rotates about a rotation axis AX and has an optical pattern along a rotation direction D on a first surface 10a crossing the rotation axis AX, of the substrate 10. The scale S also includes a first magnet M1 that is disposed on a second surface 10b of the substrate 10 different from the first surface 10a and has different magnetic poles (N-pole M1n, S-pole M1s) set therein with the rotation axis AX therebetween and a second magnet M2 that is disposed on the first surface 10a and generates magnetic fields with the N-pole M1n and S-pole M1s of the first magnet M1.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: October 15, 2019
    Inventor: Yuichi Mitsuhashi
  • Patent number: 10429436
    Abstract: The disclosure relates to a device for measuring an electrical characteristic of a substrate comprising a support made of a dielectric material having a bearing surface, the support comprising an electrical test structure having a contact surface flush with the bearing surface of the support, the bearing surface of the support and the contact surface of the electrical test structure being suitable for coming into close contact with a substrate. The measurement device also comprises at least one connection bump contact formed on another surface of the support and electrically linked to the electrical test structure. This disclosure also relates to a system for characterizing a substrate and a method for measuring a characteristic of a substrate employing the measurement device.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: October 1, 2019
    Assignee: Soitec
    Inventors: Cédric Malaquin, Jean-Pierre Raskin, Eric Desbonnets
  • Patent number: 10422845
    Abstract: Systems and methods for accelerating magnetic resonance fingerprinting (“MRF”) acquisitions are described. The method includes controlling the MRI system to acquire magnetic resonance fingerprinting (MRF) data from the subject by performing a gradient-echo pulse sequence. The pulse sequence includes maintaining residual transverse magnetization through a delay period performed between successive cycles of the pulse sequence. The delay period is selected to allow spins of different tissue types within the subject to evolve differently as a function of tissue parameters within the different tissue types during the delay period.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: September 24, 2019
    Assignee: The General Hospital Corporation
    Inventor: Ouri Cohen
  • Patent number: 10422913
    Abstract: An electromagnetic field measuring device utilizes metamaterials to manipulate electromagnetic fields. Such a device is useful in a variety of applications including, for example, downhole gradiometric ranging.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: September 24, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ahmed E. Fouda, Burkay Donderici
  • Patent number: 10416332
    Abstract: One or more embodiments are directed to conductor tracing instruments that include a receiver for detecting an energized conductor and methods for detecting an energized conductor. The receiver includes a plurality of sensors configured to sense magnetic fields produced by the energized conductor and a feedback mechanism configured to communicate information to a user regarding the magnetic fields being sensed. At least two of the sensors are configured to sense magnetic fields having directions of magnetic force that are different from each other. In one embodiment, the sensors are positioned so as to sense magnetic fields having directions of magnetic force that are perpendicular to each other. A change in information provided by the feedback mechanism communicates a change in direction of the energized conductor being detected by the receiver.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: September 17, 2019
    Assignee: Fluke Corporation
    Inventor: Sidney Siang Lin
  • Patent number: 10408041
    Abstract: An apparatus includes a down hole tool housing attached to a ranging electromagnetic field strength sensor. The ranging electromagnetic field strength sensor is to measure electromagnetic field strength components associated with an electromagnetic field originating at a first well, via at least one of direct transmission and backscatter transmission, when the down hole tool housing is disposed in a second well, to provide ranging measurements to calculate an approximate range between the first well and the second well. The apparatus includes a reference electromagnetic field strength sensor to provide a closed loop current path around the down hole tool housing, to provide distorting field strength measurements.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: September 10, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Hsu-Hsiang Wu, Burkay Donderici
  • Patent number: 10408899
    Abstract: A magnetic resonance imaging apparatus according to a present embodiment includes a gradient magnetic field coil and a gradient magnetic field power supply. The gradient magnetic field coil applies gradient magnetic field to an object, the gradient magnetic field coil including a plurality of channels. The gradient magnetic field power supply calculates a required power for each channel, and distributes maximum power to a channel requiring higher power than the required power of other channels with priority to the other channels, the maximum power being a limit value of total power to be supplied to the channels as a whole.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: September 10, 2019
    Assignee: Canon Medical Systems Corporation
    Inventors: Motohiro Miura, Masashi Hori, Sho Kawajiri
  • Patent number: 10408643
    Abstract: Methods, apparatus, systems and articles of manufacture to increase resolver-to-digital converter accuracy are disclosed.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: September 10, 2019
    Assignee: Texas Instruments Incorporated
    Inventors: Shanmuganand Chellamuthu, Viktor Tasevski, Ted F. Lekan, Fei Xu
  • Patent number: 10408962
    Abstract: Disclosed are methods of characterizing kerogen and its hydrocarbon generation potential using NMR as the primary analytical tool, and using such data to derive the kinetics of hydrocarbon generation and alteration, thus predicting the hydrocarbon potential of source rock in geological setting, which can then be used in petroleum exploration and production.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: September 10, 2019
    Assignee: ConocoPhillips Company
    Inventor: Yishu Song
  • Patent number: 10408889
    Abstract: A system for magnetic detection of an external magnetic field is disclosed. The system includes a nitrogen vacancy (NV) diamond material comprising a plurality of NV centers, a magnetic field generator that generates a magnetic field, a radio frequency (RF) excitation source that provides RF excitation, an optical excitation source that provides optical excitation, an optical detector that receives an optical signal emitted by the NV diamond material, and a controller. The controller is configured to calculate a control magnetic field, control the magnetic field generator to generate the control magnetic field, receive a light detection signal from the optical detector based on the optical signal due to the sum of the generated control magnetic field and the external magnetic field, store measurement data based on the received light detection signal, and calculate a vector of the external magnetic field based on the stored measurement data.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: September 10, 2019
    Inventors: Peter G. Kaup, Arul Manickam
  • Patent number: 10393703
    Abstract: A calibration system for an electromagnetic (EM) tool includes a processor. The processor employs the EM tool to measure responses at each of a plurality of channels. The processor records the measured responses at each of the channels in an EM data log for the channel. The processor determines a nominal value of each of the channels, as being equal to a histogram peak of the EM data log. The processor selects one or more calibration points from the EM data log for a particular channel, based on a difference between the nominal value of the particular channel and the measured response at the calibration point being greater than a particular threshold. The processor determines a plurality of parameters by reducing a misfit between synthetic data and both the nominal values of the channels and the measured responses of the channels at the selected one or more calibration points.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: August 27, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ahmed E. Fouda, Burkay Donderici, Luis Emilio San Martin
  • Patent number: 10393687
    Abstract: A multi-directional water sensor comprises a housing having multiple conductive pads on the outer surface of the housing at locations spaced around the periphery of the housing, an electrical power source coupled to the conductive pads, and multiple electrical conductors located inside the housing and connecting multiple pairs of the contacts so that electrical current can flow between different pairs of the contacts when they are connected by water. The housing may have a generally rectangular shape, with the contacts located at the corners of the housing. The multiple electrical conductors are connected to an alarm that is energized when electrical current flows between any pair of the contacts.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: August 27, 2019
    Assignee: Glentronics, Inc.
    Inventor: Ilya Ostashev
  • Patent number: 10393832
    Abstract: In a method for the optimization of multiple scan protocols for at least one magnetic resonance examination is performed by a magnetic resonance apparatus, patient data for at least one patient are recorded that includes the selection of two or more different measurements, each including at least one scan protocol, which includes at least one magnetic resonance examination. An optimized sequence of the multiple scan protocols for the two or more different measurements for the at least one magnetic resonance examination is determined by a protocol optimization computer. The optimized sequence of the multiple protocols is presented at a display monitor.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: August 27, 2019
    Assignee: Siemens Healthcare GmbH
    Inventor: David Grodzki
  • Patent number: 10379153
    Abstract: A printed circuit board (PCB) test coupon for thermal exposure and electrical testing includes a double sided or multi-layer substrate with a plurality of vias formed within the substrate of the test coupon (blind, buried, stacked vias) or extending through the entire substrate (through hole/via) from a first surface on the first side of the plated hole/via to a second surface on the second side of the plated hole/via. Each of a first plurality of trace patterns interconnect a subset of the plurality of plated holes/vias on the first side of the plated holes/vias, and each of a second plurality of trace patterns interconnect a different subset of the plurality of plated holes/vias on the second side of the plated holes/vias. The first and second pluralities of trace patterns have different patterns and connect to connection points in a connector pattern defined in the substrate.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: August 13, 2019
    Assignee: Greater Asia Pacific Limited
    Inventor: Robert Neves
  • Patent number: 10378929
    Abstract: A movement detection unit includes a movable body, a first sensor, a second sensor, and a signal processor. The movable body performs a movement in a first direction. The first sensor detects a first magnetic field change which is caused by the movement of the movable body and outputs a first signal. The second sensor is provided in the first direction at a location different from a location of the first sensor. The second sensor detects a second magnetic fled change which is caused by the movement of the movable body and outputting a second signal. The signal processor includes a signal generating circuit that generates a third signal and a fourth signal on a basis of the first signal. The third signal and the fourth signal have waveforms different from each other.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: August 13, 2019
    Inventor: Takakazu Imai
  • Patent number: 10379190
    Abstract: A method of determining an actual gradient impulse response function during execution of a magnetic resonance (MR) imaging or spectroscopy sequence, wherein a main magnetic field is generated in a sample region of an MR apparatus by means of a main magnet and wherein superimposed time dependent gradient fields and radiofrequency fields in a first RF band are generated in the sample region according to a first MR sequence for forming images or spectra, the gradient fields being generated by gradient forming means of the MR apparatus operated according to a gradient forming sequence part of said first MR sequence, the MR apparatus further comprising at least one magnetic field probe.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: August 13, 2019
    Assignee: Eidgenossische Technische Hochschule (ETH) ETH Zentrum
    Inventors: Bertram Wilm, Christoph Barmet, Klaas P. Prussmann
  • Patent number: 10378334
    Abstract: A portable locator and method for establishing the location of the cable line in a region which includes at least one generally straight electrically conductive cable line extending across the region from which cable line a locating signal includes a first arrangement for measuring a local flux intensity of the locating signal at a first above ground point within the region with the portable locator in a particular orientation at the first above ground point. A second arrangement uses the local flux intensity to establish a cable line angular orientation which limits the possible directions to the cable line relative to the particular orientation of the portable locator at the above ground point. A third arrangement uses the measured local flux intensity to establish an actual direction of the cable line that is selected from the possible directions based on certain characteristics of the locating signal.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: August 13, 2019
    Assignee: Merlin Technology Inc.
    Inventors: Guenter W. Brune, Albert W. Chau, John E. Mercer
  • Patent number: 10371549
    Abstract: Provided herein are improved magnetic sensor systems for use in linear measurement systems. A magnetic sensor can be positioned offset from a center line positioned between two magnets. The two magnets can be oriented so as to provide opposite polarities. As the magnetic sensor traverses a path parallel to the magnets and parallel to the center line, the sensor can detect a magnetic flux density provided by the two magnets. Offsetting the magnetic sensor from the center line can improve the linear range of the magnetic sensor, thereby improving the reliability and accuracy of an output signal generated by the magnetic sensor based on the detected magnetic flux density.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: August 6, 2019
    Inventor: Seong-Jae Lee