Patents Examined by G. M. A Hyder
  • Patent number: 11933871
    Abstract: According to one embodiment, MRI apparatus includes processing circuitry and an imaging device. The processing circuitry is configured to acquire at least one of body size information relating to a size of an object and breath-hold information relating to a breath-holdable time of the object. The processing circuitry is further configured to determine an imaging condition to be performed on the object based on the at least one of the body size information and the breath-hold information. The imaging device performs imaging of the object in accordance with the determined imaging condition.
    Type: Grant
    Filed: August 12, 2022
    Date of Patent: March 19, 2024
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Shinya Ozawa, Takeshi Ishimoto
  • Patent number: 11933867
    Abstract: Temperature control system for an NMR sample tube (22) using a temperature control device (20) with an interior (21) delimiting a cylindrical wall (39) in the radially outward direction and a plurality of flow channels for temperature-controlling fluid running radially around the interior, of which the radially outermost flow channel (28) is delimited to the outside by a wall (29), and the innermost flow channel (31) by a wall (30) and connected to one another by a first fluid passage (34). The innermost flow channel has a second fluid passage (36) to the interior and the outermost flow channel has a fluid inlet (32). During operation, the wall delimiting the interior in the radially outward direction is temperature-controlled by the fluid so that: abs (TU?TW)?abs (TU?TFD), where TW is the wall temperature, TFD is the fluid temperature at the first fluid passage and TU is the ambient temperature.
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: March 19, 2024
    Assignee: BRUKER SWITZERLAND AG
    Inventor: Daniel Schmidig
  • Patent number: 11921132
    Abstract: An anisotropic conductive sheet according to the present invention comprises an insulating layer and a plurality of conductive layers. The insulating layer is elastic, and has a first surface that is positioned on one side in the thickness direction, a second surface that is positioned on the other side in the thickness direction, and a plurality of through holes that penetrate the layer from the first surface to the second surface. The conductive layers are respectively arranged on the inner wall surfaces of the plurality of through holes. The insulating layer comprises an elastic layer that is formed of a crosslinked product of an elastomer composition, and a heat-resistant resin layer that is formed of a heat-resistant resin composition that has a higher glass transition temperature than the crosslinked product of an elastomer composition.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: March 5, 2024
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Katsunori Nishiura, Taichi Koyama, Daisuke Yamada
  • Patent number: 11921176
    Abstract: A magnetic resonance imaging device may include a field generator configured to provide a magnetic field in an imaging volume of the magnetic resonance imaging device. The field generator may include at least one magnet that confines the imaging volume in at least one spatial direction. The at least one magnet may be curved in such a way that a perpendicular distance between a line oriented along a direction of access to the imaging volume and a surface directed towards the imaging volume of the at least one magnet varies in the direction of access to the imaging volume.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: March 5, 2024
    Assignee: Siemens Healthcare GmbH
    Inventors: Andreas Krug, Michael Mallett
  • Patent number: 11921175
    Abstract: According to one embodiment, an arrayed structure includes a cylindrical-shaped conductor layer and a cylindrical-shaped layer stack. The cylindrical-shaped layer stack is arranged on an inner periphery of the conductor layer and a plurality of frequency selective surfaces are arranged in layers and stacked. Each of the frequency selective surfaces has a plurality of elements which are periodically arranged. Each element of the plurality of elements is formed in such a manner that at least a portion of an edge of a first element that faces an adjacent element in the same layer is closer to a center of the first element than another portion of edge.
    Type: Grant
    Filed: April 8, 2022
    Date of Patent: March 5, 2024
    Assignee: Canon Medical Systems Corporation
    Inventors: Takafumi Ohishi, Sadanori Tomiha
  • Patent number: 11916474
    Abstract: Electrical converters of the present disclosure feature a boost circuit that is fully integrated with a three phase bridge rectifier to allow for obtaining a pulsed voltage at the rectifier output. Actively switchable semiconductor switches of the boost circuit are controlled by pulse width modulation (PWM) control signals to obtain the pulsed voltage. PWM of this pulsed voltage allows control of two out of three currents at the three input terminals of the rectifier, i.e., the currents at the phase inputs having the highest and the lowest voltage levels of the three phase input voltage.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: February 27, 2024
    Assignee: PRODRIVE TECHNOLOGIES INNOVATION SERVICES B.V.
    Inventor: Jordi Everts
  • Patent number: 11899083
    Abstract: The present invention is directed to a RF transmit system (1) for a magnetic resonance examination system where it is intended to provide a solution for the problem of rapidly switching between operation modes of different peak power requirements at good power efficiencies. For this purpose the RF transmit system (1) comprises at least one RF channel (14) wherein the RF channel (14) has an RF amplifier (3), at least two power supply devices (4, 5) wherein each of the power supply devices (4, 5) is configured to supply a voltage to the amplifier (3). The RF transmit system (1) further comprises a DC switch (8) configured to switch the voltage supplied to the amplifier (3) between the power supply devices (4, 5) and a controller (2) configured to switch the voltage based on sensor data.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: February 13, 2024
    Assignee: Koninklijke Philips N.V.
    Inventors: Peter Vernickel, Christoph Leussler, Ingo Schmale, Jochen Keupp
  • Patent number: 11896362
    Abstract: A medical image processing apparatus according to the present embodiment includes processing circuitry. The processing circuitry inputs a first magnetic resonance image reconstructed with super-resolution processing on magnetic resonance data and a second magnetic resonance image obtained by imaging the same object as that of the first magnetic resonance image and with artifacts suppressed compared with the first magnetic resonance image, to a leaned model, the learned model being configured to output a third magnetic resonance image having the same resolution as that of the first magnetic resonance image and with the artifacts suppressed, generates the third magnetic resonance image based on the first magnetic resonance image and the second magnetic resonance image, using the learned model.
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: February 13, 2024
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Hideaki Kutsuna
  • Patent number: 11896359
    Abstract: The present disclosure relates to a multi-channel magnetic resonance imaging RF coil (114) with at least four channels and comprising a coil element for each of the channels, the RF coil (114) further comprising for each coil element a socket (300-306) that is electrically coupled to said coil element via a respective first transmission line (209), each socket (300-306) being adapted for receiving a plug for providing an RF signal via the respective first transmission line (209) to the respective coil element, wherein with respect to a predefined RF signal the differences in electrical length between any of the transmission lines is k?/4 where k is an integer and ? is the wavelength of the RF signal.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: February 13, 2024
    Assignee: Koninklijke Philips N.V.
    Inventors: Christoph Leussler, Ingo Schmale
  • Patent number: 11892529
    Abstract: A transition metal dichalcogenides device includes a substrate, a bottom layer of boron nitride, a tungsten diselenide monolayer on the bottom layer of boron nitride, a top layer of boron nitride on the tungsten diselenide monolayer such that the bottom and top layers of boron nitride at least partially encapsulate the tungsten diselenide monolayer, a source electrode on the substrate, a drain electrode on the substrate, and a top gate electrode on the top layer of boron nitride. The tungsten diselenide monolayer is configured to reveal excitons when at least one of a K valley and a K? valley of the tungsten diselenide monolayer is exposed to excitation photon energy and an external magnetic field. The excitons are giant valley-polarized Rydberg excitons in excited states ranging from 2s to 11s when the external magnetic field is in the range of about ?17 T to about 17 T.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: February 6, 2024
    Assignee: Rensselaer Polytechnic Institute
    Inventors: Sufei Shi, Tianmeng Wang
  • Patent number: 11883148
    Abstract: A system and method for performing magnetic resonance imaging (MRI), magnetic resonance spectroscopy (MRS), or magnetic resonance spectroscopy imaging (MRSI) at multiple resonant frequencies using a coil system. The coil system includes at least one conductive loop and a capacitor forming a radiofrequency (RF) resonant antenna and a tuning-matching circuit electrically connected to the RF resonant antenna to operate at multiple resonant frequencies across a desired operational range. The coil system also includes two legs electrically connecting the tuning-matching circuit to the RF resonant antenna and having a length selected to generate at least two selected resonant frequencies with a selected frequency difference.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: January 30, 2024
    Assignee: REGENTS OF THE UNIVERSITY OF MINNESOTA
    Inventors: Wei Chen, Guangle Zhang, Wei Zhu, Xiao-Hong Zhu
  • Patent number: 11885860
    Abstract: In a computer-implemented method for setting a field of view for a magnetic resonance scan, exclusion information describing a region of the original field of view that is unmapped owing to the distortion is ascertained on the basis of the distortion map for at least one first set of field-of-view parameters describing a rectangular or cuboidal original field of view, the exclusion information is used to determine a second set of field-of-view parameters to be used for the magnetic resonance scan, and the magnetic resonance scan is performed using the second set of field-of-view parameters.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: January 30, 2024
    Assignee: Siemens Healthcare GmbH
    Inventors: Dominik Paul, Hans-Peter Fautz, Mario Zeller, David Grodzki, Hannah Hale
  • Patent number: 11883147
    Abstract: Method for operating an MR device to acquire MR data slices, wherein in a sequence section of an MR sequence, MR signals of at least two slices are measured simultaneously, and an acquisition order having an association of slices to respective sequence sections of a repetition sequence covering all slices of an associated concatenation is determined using an ordering rule. A crosstalk criterion is evaluated for the acquisition order by checking whether a first slice acquired in a last sequence section of the repetition sequence is directly adjacent to a second slice acquired in a first sequence section of the same repetition sequence. If the crosstalk criterion is fulfilled, the acquisition order is adapted according to an adaptation rule such that a larger temporal acquisition distance between the acquisition of the first and the second slices is provided.
    Type: Grant
    Filed: June 15, 2022
    Date of Patent: January 30, 2024
    Assignee: Siemens Healthcare GmbH
    Inventors: Flavio Carinci, Mario Zeller, Dominik Paul
  • Patent number: 11885865
    Abstract: A quality control phantom and an evaluation method for magnetic resonance arterial spin labeling perfusion imaging includes: a phantom main body; a container, a circulating liquid being provided in the container; a tube, comprising a first tube and a second tube, one end of the first tube being in communication with the container, the other end being in communication with a liquid inlet of the phantom main body, one end of the second tube being in communication with the container, the other end being in communication with a liquid outlet of the phantom main body, and the first tube, the phantom main body, the second tube and the container jointly forming a closed loop; a pump, provided on the first tube and used to drive the circulating liquid to circulate along the closed loop to generate a perfusion signal in the phantom main body.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: January 30, 2024
    Assignee: SHANDONG FIRST MEDICAL UNIVERSITY & SHANDONG ACADEMY OF MEDICAL SCIENCES
    Inventors: Weizhao Lu, Kun Hou, Jianfeng Qiu, Liting Shi, Huihui Zhao
  • Patent number: 11874352
    Abstract: A peripheral device for a magnetic resonance tomography unit. The peripheral device includes a first sensor for receiving an electromagnetic data signal from the environment of the peripheral device. The peripheral device is configured to execute signal processing in dependence on the electromagnetic data signal and a frequency of the electromagnetic data signal is greater than a Larmor frequency of the magnetic resonance tomography unit.
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: January 16, 2024
    Assignee: Siemens Healthcare GmbH
    Inventors: Jan Bollenbeck, Peter Speier
  • Patent number: 11874357
    Abstract: The disclosed technology relates to a method and device for generating a fat suppression magnetic resonance image. The method includes: inputting, by an imaging device, a magnetic resonance image to an encoder of a neural network to extract features of the magnetic resonance image; and generating, by a generator of the neural network, a T2-weighted fat suppression image based on the features, in which the neural network is trained according to a result of discriminating, by a discriminator of the neural network, a loss due to a generation of a T2-weighted fat suppression image and as a result of reconstructing, by a decoder, the magnetic resonance image input to the encoder using a Bloch equation before the magnetic resonance image is input.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: January 16, 2024
    Assignee: UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITY
    Inventors: Do Sik Hwang, Sungjun Kim, Young Han Lee, Se Won Kim
  • Patent number: 11874348
    Abstract: Provided is a brain measurement system including: a geomagnetic correction coil; a geomagnetic gradient correction coil; a transmission coil; a receiving coil; a plurality of resonance adjustment circuits; a plurality of OPM modules provided corresponding to each of the plurality of resonance adjustment circuits for detecting a signal having a resonance frequency output from the resonance adjustment circuit; and a control device for generating an MR image based on the signal detected by the OPM module, wherein, when a direction parallel to a central axis of a head portion of a subject is defined as a Z-axis direction, the resonance frequency related to each of the plurality of resonance adjustment circuits is set according to a magnetic field gradient in the Z-axis direction generated by control of a position of the corresponding receiving coil in the Z-axis direction and a tilted magnetic field.
    Type: Grant
    Filed: August 19, 2022
    Date of Patent: January 16, 2024
    Assignees: HAMAMATSU PHOTONICS K.K., Kyoto University
    Inventors: Takenori Oida, Takahiro Moriya, Akinori Saito, Motohiro Suyama, Tetsuo Kobayashi
  • Patent number: 11874354
    Abstract: Systems and methods for MRI are provided. The methods may include for each slice of a plurality of slices of a subject to be scanned, determining a plurality of radiofrequency (RF) parameters, the plurality of RF parameters including at least one channel parameter corresponding to each of a plurality of channels; determining a slice group based at least in part on the RF parameters corresponding to the plurality of slices, the slice group including at least two slices selected from the plurality of slices; and directing at least a portion of the plurality of channels to excite the slice group based on RF parameters corresponding to the slice group.
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: January 16, 2024
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Linfei Wen, Zhenhua Shen
  • Patent number: 11868067
    Abstract: A fixing unit or device that can be used in an image forming apparatus includes a first heater element that is formed of a material that increases in electrical resistance with increases in temperature. A controller of the fixing unit is configured to vary a duty ratio of electric power applied to the first heater element during a start-up operation in which the temperature of the first heater element is raised to a target operating temperature. By varying the duty ratio during the start-up operation, changes in the resistance of the first heater element with the heating can be compensated. For example, the duty ratio can be increased during the course of the start-up to achieve the target operating temperature faster.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: January 9, 2024
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Kiyotaka Murakami, Kazuhiko Kikuchi, Sasuke Endo, Masaya Tanaka, Ryota Saeki, Kousei Miyashita, Ryosuke Kojima, Yohei Doi, Yuki Kawashima, Eiji Shinohara
  • Patent number: 11867785
    Abstract: Magnetic resonance fingerprinting (“MRF”) techniques in which T1, T2, and T2* are simultaneously quantified using a combined gradient echo and spin echo acquisition with integrated B1 correction are described. The values for T2 and T2* can be estimated separately, but using the same underlying dictionary. This approach enables a smaller dictionary size that is easily manageable, and also reduced error propagation. Moreover, by using echo planar imaging (“EPI”) readouts, the raw MRF images will have higher signal-to-noise ratio (“SNR”) relative images acquired using spiral-based MRF techniques. The EPI-based images are also relatively free of artifacts. Together, these advantages lead to the need for far fewer frames, thereby enabling much faster acquisitions. Moreover, offline reconstruction is not needed, allowing for a more straightforward implementation of MRF.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: January 9, 2024
    Assignee: Baycrest Centre for Geriatric Care
    Inventor: Mahdi Khajehim