Patents Examined by G. M. A Hyder
  • Patent number: 11835608
    Abstract: The present disclosure relates to a method and a system for minimizing electromagnetic interference (EMI) of magnetic resonance imaging (MRI) systems in complex electromagnetic environments. The method and system described herein provide superior MRI image quality and may reduce costs by eliminating the requirement of expensive shielding in MRI systems/hybrid MRI systems.
    Type: Grant
    Filed: June 17, 2022
    Date of Patent: December 5, 2023
    Assignee: Zepp Europe Holding B.V.
    Inventors: Jinghua Wang, Kongqiao Wang, Li Guo
  • Patent number: 11835604
    Abstract: A method for ascertaining at least one of a position or an orientation of an MR local coil unit for arrangement inside a main magnetic field includes providing a first 3D relative position of a reference sensor system in relation to the main magnetic field; receiving an acceleration vector from at least one acceleration sensor; retrieving a distance vector describing a fixed relative position as a function of the received acceleration vector; calculating a second 3D relative position of the at least one acceleration sensor in relation to the main magnetic field based on the first 3D relative position and the retrieved distance vector; and ascertaining the at least one of the position or the orientation of the MR local coil unit using the first 3D relative position and the second 3D relative position.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: December 5, 2023
    Assignee: Siemens Healthcare GmbH
    Inventors: Johann Sukkau, Volker Matschl, Steffen Schroeter
  • Patent number: 11835605
    Abstract: Various methods and systems are provided for a current trap. In one example, the current trap has a flat core made of a nonconductive material, a coiled wire having a plurality of turns winding around the flat spiral core, and one or more tuning capacitors physically attached to the flat core and electrically connected to the coiled wire to form a resonant circuit with the coiled wire.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: December 5, 2023
    Assignee: GE PRECISION HEALTHCARE LLC
    Inventors: Limin Feng, Aleksey Zemskov
  • Patent number: 11821969
    Abstract: The present disclosure relates to an MRI system and a method and device for determining a waveform of oblique scanning. Specifically, provided are a magnetic resonance imaging system, a method and device for determining a gradient waveform of oblique scanning, and a computer-readable storage medium.
    Type: Grant
    Filed: August 19, 2022
    Date of Patent: November 21, 2023
    Assignee: GE Precision Healthcare LLC
    Inventors: Pengshuai Wang, Xuan Liu, Yongchuan Lai
  • Patent number: 11821967
    Abstract: A magnetic resonance coil and a magnetic resonance imaging system using the same are provided. The magnetic resonance coil may include an antenna, an amplifier, and a protective circuit. The antenna may be configured to receive a radio frequency (RF) signal emitted from an object. The antenna may not resonate with the RF signal. The amplifier operably coupled to the antenna configured to amplify the RF signal. The protective circuit may be configured to protect the antenna and the amplifier.
    Type: Grant
    Filed: January 10, 2022
    Date of Patent: November 21, 2023
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Ling Ji, Shao Che, Yunlei Yao
  • Patent number: 11815483
    Abstract: The present disclosure relates to a method for analysis of a deuterium substitution rate of a deuterium-substituted sample according to substitution positions using information of a 1H-NMR spectrum of the deuterium-substituted sample.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: November 14, 2023
    Inventors: Eunhee Kim, Sooyoung Kwak, Young Hee Lim, Yu Ra Lee
  • Patent number: 11815578
    Abstract: In a method for avoiding artifacts during acquisition of MR data, a first measurement data set (MDS) of a target region of the examination object and at least one second MDS of the target region are acquired, and a combined MDS is created based on the acquired data sets. The first MDS does not sample a first region of k-space to be sampled according to Nyquist and corresponding to a first partial factor, and a second MDS does not sample a second region of k-space to be sampled according to Nyquist and corresponding to a second partial factor. The first and second regions of the k-space are different from each other. Advantageously, a k-space region acquired in none of the acquisitions made can be minimized by the inventive variation in the respective sampling pattern of the acquired MDS, so artifacts are reduced/avoided in MR images reconstructed from the MDS.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: November 14, 2023
    Assignee: Siemens Healthcare GmbH
    Inventor: Mario Zeller
  • Patent number: 11815579
    Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes sequence control circuitry and processing circuitry. The sequence control circuitry performs under-sampled data acquisition whose sample points are located at an equal interval in k-space and acquires k-space frames. The processing circuitry generates a plurality of k-space frames related to a plurality of time resolutions based on the k-space frames. In each of the plurality of k-space frames, the sample points are located at an equal interval, and the interval differs for each of the plurality of k-space frames. The processing circuitry generates a time-series image based on the plurality of k-space frames.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: November 14, 2023
    Assignee: Canon Medical Systems Corporation
    Inventor: Hidenori Takeshima
  • Patent number: 11815482
    Abstract: A method for NMR measurements on borehole materials, e.g., sidewall cores, is based on performing a standard measurement in substantially homogeneous magnetic fields with a sensitivity volume covering an entire sample and a measurement on a fragment of the sample (local measurement), the fragment having a predetermined volume independent of the irregularities of the sample shape (e.g., irregular shaped edges). The fragment of the sample is selected using a switchable static magnetic field gradient or a localized radio-frequency magnetic field. The homogeneous and the local measurement data are processed jointly to obtain volume normalized NMR relaxation data (in porosity units), the processing also using a calibration sample data. A measurement apparatus with an automated sample transfer can be used to implement the method in order to perform high-throughput NMR relaxation measurements that do not require independent measurement of the sample volume.
    Type: Grant
    Filed: May 30, 2022
    Date of Patent: November 14, 2023
    Inventor: Arcady Reiderman
  • Patent number: 11800627
    Abstract: A probe for measuring plasma parameters by means of active plasma resonance spectroscopy comprises an external coupling, a balun, an internal coupling, and a probe head. It is provided that the couplings, the balun, and the probe head are integrated in an electrically-insulating substrate cylinder, and the substrate cylinder has a layered structure made from multiple substrate layers along its rotational axis. In this way, a probe for measuring plasma parameters is provided which enables an improved measurement of the plasma parameters, wherein the plasma is influenced as little as possible during the measurement of the plasma parameters.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: October 24, 2023
    Assignee: RUHR-UNIVERSIT√ĄT BOCHUM
    Inventors: Dennis Pohle, Christian Schulz, Ilona Rolfes
  • Patent number: 11795811
    Abstract: A method and system for transmitting an electromagnetic (EM) signal in a wellbore to improve an open loop system. The method comprises measuring a parameter indicative of a property of a transmitter using a sensor in the wellbore and generating an input signal for the transmitter based at least in part on the measured parameter to correct distortions exhibited by the output signal of the transmitter. The method comprises also comprises applying the input signal to the transmitter to transmit the EM signal corrected for distortions. The system comprises an antenna, a transmitter, a sensor, and a controller. The controller is configured and operable to generate an input signal for the transmitter based at least in part on the measured parameter to correct distortions exhibited by an output signal of the transmitter; and apply the input signal to the transmitter to transmit the EM signal corrected for the distortions.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: October 24, 2023
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Jie Yang
  • Patent number: 11789102
    Abstract: A magnetic resonance imaging device includes at least one magnetic shielding element, an electrical component and a coil arrangement including at least two coil rings. In an embodiment, the coil rings are arranged offset along a longitudinal direction of a patient receptacle and the coil arrangement is embodied to form a magnetic field in an inner volume surrounded partially by the coil rings and at least partially including the patient receptacle. Further, in an embodiment, the shielding element and the electrical component outside of the inner volume are arranged in the longitudinal direction centrally between the coil rings and the shielding element shields the electrical component from the magnetic field outside of the inner volume.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: October 17, 2023
    Assignee: SIEMENS HEALTHCARE GMBH
    Inventor: Volker Model
  • Patent number: 11789381
    Abstract: A drum cartridge is configured to be detachably mounted on an apparatus main body in a state where a toner cartridge is mounted on the drum cartridge. A first shutter and a second shutter are configured such that: when the drum cartridge is mounted onto the apparatus main body in a state where the toner cartridge is mounted on the drum cartridge, the first shutter moves from a first closed position to a first open position and the second shutter moves from a second closed position to a second open position, and when the drum cartridge is detached from the apparatus main body in a state where the toner cartridge is mounted on the drum cartridge, the first shutter moves from the first open position to the first closed position and the second shutter moves from the second open position to the second closed position.
    Type: Grant
    Filed: May 3, 2022
    Date of Patent: October 17, 2023
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yasumasa Fujii, Takashi Arakawa, Shougo Sato
  • Patent number: 11782003
    Abstract: In a first step, a sample formed of a polyester or decomposition products of a polyester is dissolved in a pretreatment liquid containing 1,1,1,3,3,3-hexafluoro-2-propanol and an organic base to produce a reaction product of the sample, and in a second step, the obtained reaction product is mixed into a solvent (measurement solvent) containing deuterated chloroform and deuterated 1,1,1,3,3,3-hexafluoro-2-propanol to fabricate a sample liquid. Next, in a third step, the amount of the reaction product in the sample liquid is measured through NMR aiming at hydrogen atoms to determine the amount of an acid anhydride structure in the sample.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: October 10, 2023
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Azusa Ishii, Takashi Miwa, Masamitsu Watanabe, Soichi Oka
  • Patent number: 11784614
    Abstract: Radio frequency amplifier (200) assembly with effective prevention of RF interference.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: October 10, 2023
    Assignee: Koninklijke Philips N.V.
    Inventors: Keqiu Zeng, Cong Zhou, Yuanxu Ding, Jungyang Zhang, Jun Ma
  • Patent number: 11782111
    Abstract: A new method for reconstructing a full spectrum from under-sampled magnetic resonance spectrum data by using a deep learning network. First, the exponential function is used to generate a time-domain signal of the magnetic resonance spectrum, and a zero-filling time-domain signal is obtained after the under-sampled operation is completed in the time domain. The zero-filling time-domain signal and the full spectrum corresponding to the full sampling are combined to form a training data set. Then, a data verification convolutional neural network model is established for magnetic resonance spectrum reconstruction, where the training data set is used to train neural network parameters to form a trained neural network. Finally, the under-sampled magnetic resonance time-domain signal is input to the trained data verification convolutional neural network, and the full magnetic resonance spectrum is reconstructed.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: October 10, 2023
    Assignee: Xiamen University
    Inventor: Xiaobo Qu
  • Patent number: 11774525
    Abstract: A direction shifting mechanism for changing a direction of a sample tube is installed on a path of the sample tube between a sample tube supporting unit for supporting, during an NMR measurement, the sample tube used for the NMR measurement and an insertion port through which the sample tube is inserted in and extracted from the sample tube supporting unit. The direction shifting mechanism has a shape which partially includes a form of an arc, and the shape is designed to cause the sample tube to change its direction in such a manner that the sample tube is turned toward the insertion port along the arc while being maintained in contact with at least two points on an inner wall of the direction shifting mechanism.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: October 3, 2023
    Assignee: JEOL Ltd.
    Inventors: Masahide Nishiyama, Yuki Endo, Hiroki Takahashi
  • Patent number: 11774531
    Abstract: A magnetic resonance (MR) system is provided. The system includes a main magnet assembly configured to generate a polarizing magnetic field, a gradient coil assembly including a plurality of gradient coils configured to apply at least one gradient field to the polarizing magnetic field, and a shield assembly positioned between the main magnet assembly and the gradient coil assembly. The shield assembly includes a conductive layer fabricated with an electrically conductive material and defining grooves positioned through the conductive layer, wherein the grooves are configured to block motional eddy currents caused by actions of the polarizing magnetic field and the at least one gradient field when the at least one gradient field is applied.
    Type: Grant
    Filed: May 4, 2022
    Date of Patent: October 3, 2023
    Assignee: GE PRECISION HEALTHCARE LLC
    Inventors: Seung-Kyun Lee, Yihe Hua
  • Patent number: 11754941
    Abstract: A developing cartridge 1 may include a developing roller including a developing roller shaft, a casing capable of containing a developer material, and a developing electrode or a member configure to be electrically connected to the developing roller shaft. The developing electrode or the member has a first end portion configured to be electrically connected to the developing roller shaft and a second end portion located farther away from the developing roller shaft than the first end portion. The second end portion is farther away in the second direction from the one end of the casing than the first end portion is from the one end of the casing. The developing electrode has a first hole extending in the second direction between the first end portion and the second end portion.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: September 12, 2023
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Nao Itabashi
  • Patent number: 11747419
    Abstract: Systems and methods for performing ungated magnetic resonance imaging are disclosed herein. A method includes producing magnetic resonance image MRI data by scanning a target in a low magnetic field with a pulse sequence having a spiral trajectory; sampling k-space data from respective scans in the low magnetic field and receiving at least one field map data acquisition and a series of MRI data acquisitions from the respective scans; forming a field map and multiple sensitivity maps in image space from the field map data acquisition; forming target k-space data with the series of MRI data acquisitions; forming initial magnetic resonance images in the image domain by applying a Non-Uniform Fast Fourier Transform to the target k-space data; and forming reconstructed images with a low rank plus sparse (L+S) reconstruction algorithm applied to the initial magnetic resonance images.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: September 5, 2023
    Assignee: University of Virginia Patent Foundation
    Inventors: Zhixing Wang, Xue Feng, John P. Mugler, III, Michael Salerno, Adrienne E. Campbell-Washburn, Craig H. Meyer