Patents Examined by G. M. Hyder
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Patent number: 11231472Abstract: A system for positioning of an RF surface coil to several imaging tables has a table coupling device with first and second sides and table engagement features. The first side has a planar surface to mate with a first imaging table. The second side has a contoured surface having a curvature to mate with a second imaging table. A coil coupling device selectively couples to each of the first and second sides of the table coupling device in respective first and second configurations. The coil coupling device selectively rotates about a rotation axis perpendicular to the first side, and selectively translates along a translation axis perpendicular to the rotation axis. The coil coupling device has one or more coil engagement features to selectively engage the RF surface coil in each of a horizontal position and vertical position of the RF surface coil with respect to the table coupling device.Type: GrantFiled: September 4, 2020Date of Patent: January 25, 2022Assignee: Quality Electrodynamics, LLCInventors: David Michael Berendt, Jr., Michael Joseph Wyban, John Thomas Carlon
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Patent number: 11231475Abstract: A fully sampled calibration data set, which may be Cartesian k-space data, is used to obtain targeted and optimal interpolation kernels for non-regularly sampled data. The calibration data are self-calibration data obtained from a time-averaged image, or re-sampled data. ACS data are resampled for calibration of region-specific kernels. Subsequently, an explicit noise-based regularized solution can be utilized to estimate region-specific kernels for reconstruction.Type: GrantFiled: April 20, 2020Date of Patent: January 25, 2022Assignee: REGENTS OF THE UNIVERSITY OF MINNESOTAInventors: Steen Moeller, Mehmet Akcakaya, Seng-Wei Chieh
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Patent number: 11221383Abstract: 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: GrantFiled: November 16, 2020Date of Patent: January 11, 2022Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.Inventors: Shao Che, Yunlei Yao
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Patent number: 11215949Abstract: A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive drum, a developing roller, a drum unit containing the drum, a developing unit containing the roller and being movable so the roller contacts and is spaced from the drum, and a first force receiver receiving a force from a main-assembly first force applier by movement of a door from open to closed positions when mounting the cartridge and a second force receiver movable from a stand-by position by movement of the first force receiver by a force received from the first force applier. The second force receiver takes a projected position receiving a force from the second force applier to move the developing unit so the roller moves out of contact with the drum, the projected position being higher than the stand-by position.Type: GrantFiled: July 23, 2020Date of Patent: January 4, 2022Assignee: Canon Kabushiki KaishaInventors: Akira Yoshimura, Kazunari Murayama, Susumu Nittani, Atsushi Numagami
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Patent number: 11215685Abstract: An apparatus for providing a B0 magnetic field for a magnetic resonance imaging system. The apparatus includes at least one first B0 magnet configured to produce a first magnetic field to contribute to the B0 magnetic field for the magnetic resonance imaging system, the at least one first B0 magnet comprising a first plurality of permanent magnet rings including at least two rings with respective different heights.Type: GrantFiled: May 20, 2019Date of Patent: January 4, 2022Assignee: Hyperfine, Inc.Inventors: Michael Stephen Poole, Cedric Hugon, Christopher Thomas McNulty
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Patent number: 11215944Abstract: An image forming apparatus includes an image forming device that forms images in an image region on a sheet. An image fixing device includes heater elements disposed along a sheet-width direction. A controller is configured to identify a heater element that will overlap with an edge of the image region when a sheet is conveyed to the image fixing device. The controller calculates whether a shift of the image region by a shift amount less than a threshold would cause the heater element to not overlap. If so, the image forming device is controlled to form the image in a shifted image region and only those heater elements in the plurality of heater elements that overlap with the shifted image region are turned on when fixing the sheet if the image has been formed in the shifted image region.Type: GrantFiled: September 30, 2020Date of Patent: January 4, 2022Assignee: TOSHIBA TEC KABUSHIKI KAISHAInventor: Yayoi Doi
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Patent number: 11209508Abstract: A radio frequency (RF) device for receiving or exciting a magnetic resonance (MR) signal includes an MR coil (22, 32) tuned to an MR frequency band, a digital signal processing chain (40, 44, 58, 70) at least partly tuned to operate at baseband, an analog signal processing chain (48, 50, 54, 60) operatively connected with the MR coil and at least partly tuned to operate at the MR frequency band, and an analog to digital (A/D) or digital-to-analog (D/A) converter (46, 56) connecting the digital signal processing chain and the analog signal processing chain. The analog signal processing chain includes an analog dispersive delay line (50, 60) tuned to impose a frequency-dependent signal delay (52, 62) that is monotonically increasing or monotonically decreasing over the MR frequency band. In more specific embodiments, the RF device may comprise an MR transmit chain (20), or an MR receive chain (30).Type: GrantFiled: June 11, 2019Date of Patent: December 28, 2021Assignee: Koninklijke Philips N.V.Inventors: Arne Reykowski, George Randall Duensing
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Patent number: 11199600Abstract: A superconducting magnet includes a liquid helium reservoir (14), superconducting magnet windings (12) disposed in the liquid helium reservoir, and a vacuum jacket (20) surrounding the liquid helium reservoir. A cold head (30) passes through the vacuum jacket. The cold head has a warm end (32) welded to an outer wall (22) of the vacuum jacket and a cold station (46) disposed in the liquid helium reservoir. A heat exchanger (60) is disposed inside the vacuum jacket and secured to or integral with the cold head. The heat exchanger includes a fluid passage (62) having an inlet (64) in fluid communication with the liquid helium reservoir and having an outlet (66) in fluid communication with ambient air. While the cold head is turned off, gas helium flows from the liquid helium reservoir to ambient air via the heat exchanger, thereby cooling the non-operating cold head.Type: GrantFiled: July 17, 2018Date of Patent: December 14, 2021Assignee: Koninklijke Philips N.V.Inventors: Hong Hu, Joshua Kent Hildebrand, Glen George Pfleiderer
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Patent number: 11199598Abstract: An MRI scanner and a method for operation of the MRI scanner are provided. The MRI scanner has a first receiving antenna for receiving a magnetic resonance signal from a patient in a patient tunnel, a second receiving antenna for receiving a signal having the Larmor frequency of the magnetic resonance signal, and a receiver. The second receiving antenna is located outside of the patient tunnel or near an opening thereof. The receiver has a signal connection to the first receiving antenna and the second receiving antenna and is configured to suppress an interference signal by the second receiving antenna in the magnetic resonance signal received by the first receiving antenna.Type: GrantFiled: October 2, 2018Date of Patent: December 14, 2021Assignee: Siemens Healthcare GmbHInventors: Stephan Biber, Ian Edward Nichols, David James Sadler, David Grodzki, Markus Vester
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Patent number: 11194003Abstract: In one embodiment, an MRI apparatus includes a scanner and processing circuitry. The scanner includes at least two gradient coils. The processing circuitry is configured to cause the scanner to acquire k-space data for correction in a band-shaped two-dimensional k-space along a readout direction, or in a columnar three-dimensional k-space along a readout direction, while changing rotation angles, wherein each of the rotation angles corresponds to the readout direction, generate correction data for correcting an error due to a gradient magnetic field generated by the gradient coils, by using the acquired k-space data for correction, cause the scanner to acquire k-space data for reconstruction, based on a radial acquisition method, while correcting the gradient magnetic field by using the correction data, and generate an image by reconstructing the acquired k-space data for reconstruction.Type: GrantFiled: February 28, 2020Date of Patent: December 7, 2021Assignee: Canon Medical Systems CorporationInventors: Hideaki Kutsuna, Hidenori Takeshima
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Patent number: 11193994Abstract: A single-stage radio frequency amplifier is provided with a signal amplification stage for a magnetic resonance tomography scanner, for example as a low-noise preamplifier in a local coil. The radio frequency amplifier includes a signal input, a signal amplifier, a signal output of the signal amplifier and a phase shifter. The phase shifter is in signal connection with the signal output and the signal input of the signal amplifier and is configured to couple a predetermined portion of an output signal of the signal amplifier with a predetermined phase shift into the signal input of the signal amplifier.Type: GrantFiled: March 31, 2020Date of Patent: December 7, 2021Assignee: Siemens Healthcare GmbHInventors: Klaus Huber, Markus Vester
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Patent number: 11193995Abstract: An electromagnet of an electromagnet assembly for a Magnetic Resonance Imaging (MRI) apparatus. The electromagnet includes an annular coil that is configured to generate a magnetic field and has a first axially outer surface; a support element that is bonded to the first axially outer surface of the annular coil and is configured to mount the annular coil in the MRI apparatus; and a support structure comprising a pair of axially-directed support plates spaced apart from one another along a radial direction of the annular coil by a distance which is greater than a radial thickness of the annular coil forming a cavity therebetween, wherein the support element is received in the cavity and mechanically fastened to the support plates.Type: GrantFiled: September 25, 2018Date of Patent: December 7, 2021Assignee: Siemens Healthcare LimitedInventor: Jonathan Noys
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Patent number: 11187766Abstract: Methods and systems for determining fluid content in a formation sample are disclosed. The method includes disposing the formation sample with a standard sample of a known chemical composition and one or more nuclear magnetic resonance (NMR) attributes in a NMR coil or probe, and acquiring NMR signals for the formation sample and the standard sample simultaneously. The system includes a NMR probe or NMR coil, a formation sample, and a standard sample with known chemical composition and one or more nuclear magnetic resonance (NMR) attributes, wherein the formation sample and the standard sample are disposed in the NMR coil or probe, and wherein NMR signals are acquired for the formation sample and the standard sample simultaneously.Type: GrantFiled: July 9, 2020Date of Patent: November 30, 2021Assignee: Saudi Arabian Oil CompanyInventors: Jilin Jay Zhang, Jin-Hong Chen, Stacey Marie Althaus
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Patent number: 11187769Abstract: The disclosure relates to a computer implemented method for magnetic resonance imaging. The method includes: receiving at least a first and a second subset of k-space data as radio frequency signals emitted from excited hydrogen atoms of a subject; sampling the first and second subset of k-space data; choosing the first subset of k-space data as a base subset of k-space data; estimating motion parameters of the second subset of k-space data against the base subset of k-space data; and correcting the second subset of k-space data based on the estimated motion parameters of the second subset of k-space data. The motion parameters of the second subset of k-space data are parameters of a non-linear motion estimating function representing a motion of the subject between receiving the first subset of k-space data and receiving the second subset of k-space data.Type: GrantFiled: April 17, 2020Date of Patent: November 30, 2021Assignees: THE GENERAL HOSPITAL CORPORATION, SIEMENS HEALTHCARE GMBHInventors: Daniel Nicolas Splitthoff, Julian Hossbach, Josef Pfeuffer, Stephen Farman Cauley, Melissa Haskell
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Patent number: 11188010Abstract: A developer supply container detachably mountable to a developer receiving apparatus and settable in a developer receiving apparatus by a setting operation including at least a rotation toward a setting position, includes a containing portion for containing the developer; a rotatable discharging member for discharging the developer out of said containing portion; drive transmitting means, engageable with a driving gear provided in said developer receiving apparatus and rotatable in a direction opposite the setting direction, for transmitting a rotating force from said driving gear to said discharging member.Type: GrantFiled: July 6, 2017Date of Patent: November 30, 2021Assignee: CANON KABUSHIKI KAISHAInventors: Toshiaki Nagashima, Katsuya Murakami, Ayatomo Okino
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Patent number: 11181600Abstract: The present invention is directed to a magnetic resonance imaging system with motion detection for examination of a patient (53), the magnetic resonance imaging system comprising an RF coil arrangement with an RF coil (4) for transmitting and/or receiving an RF signal for generating a magnetic resonance image wherein the RF coil arrangement is provided with an additional RF sensor (5) for transmitting an RF transmit signal which is adapted for interacting with the tissue (23) of the patient (53) allowing to sense motion signals due to motions of the patient (53) simultaneously to transmitting and/or receiving the RF signal for generating the magnetic resonance image. In this way movements of a patient under examination in an MRI system may be detected in an efficient and reliable way.Type: GrantFiled: November 9, 2018Date of Patent: November 23, 2021Assignee: Koninklijke Philips N.V.Inventors: Christoph Leussler, Daniel Wirtz, Tim Nielsen
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Patent number: 11181860Abstract: A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive drum, a developing roller, a drum unit containing the drum, a developing unit containing the roller and being movable so the roller contacts and is spaced from the drum, and a first force receiver receiving a force from a main-assembly first force applier by movement of a door from open to closed positions when mounting the cartridge and a second force receiver movable from a stand-by position by movement of the first force receiver by a force received from the first force applier. The second force receiver takes a projected position receiving a force from the second force applier to move the developing unit so the roller moves out of contact with the drum, the projected position being higher than the stand-by position.Type: GrantFiled: July 23, 2020Date of Patent: November 23, 2021Assignee: Canon Kabushiki KaishaInventors: Akira Yoshimura, Kazunari Murayama, Susumu Nittani, Atsushi Numagami
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Patent number: 11181599Abstract: Methods, computer-readable storage devices, and systems are described for reducing movement of a patient undergoing a magnetic resonance imaging (MRI) scan by aligning MRI data, the method implemented on a Framewise Integrated Real-time MRI Monitoring (“FIRMM”) computing device including at least one processor in communication with at least one memory device. Aspects of the method comprise receiving a data frame from the MRI system, aligning the received data frame to a preceding data frame, calculating motion of a body part between the received data frame and the preceding data frame, calculating total frame displacement, and excluding data frames with a cutoff above a pre-identified threshold of the total frame displacement.Type: GrantFiled: March 8, 2018Date of Patent: November 23, 2021Assignees: Washington University, Oregon Health and Science UniversityInventors: Nico Dosenbach, Jonathan Koller, Andrew Van, Abraham Snyder, Amy Mirro, Damien Fair, Eric Earl, Rachel Klein, Oscar Miranda Dominguez, Anders Perrone
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Patent number: 11183783Abstract: A test socket (14) for a testing an integrated circuit (12) with controlled impedance while maintaining the structural integrity of the test pins (20). The pin (20) can have a sidewall with a thick portion 32 and a thinner portion (30) along the length of the pin. The pin can have projections (42) which provide a standoff from the slot (40). The sidewalls themselves can have projections or lands (60, 61) which extend into the slot and provide stability for the pin (20).Type: GrantFiled: June 15, 2020Date of Patent: November 23, 2021Assignee: Johnstech International CorporationInventors: Jeffrey Sherry, Michael Andres
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Patent number: 11156688Abstract: An apparatus for controlling at least one gradient coil of a magnetic resonance imaging (MRI) system. The apparatus may include at least one computer hardware processor; and at least one computer-readable storage medium storing processor executable instructions that, when executed by the at least one computer hardware processor, cause the at least one computer hardware processor to perform a method. The method may include receiving information specifying at least one target pulse sequence; determining a corrected pulse sequence to control the at least one gradient coil based on the at least one target pulse sequence and a hysteresis model of induced magnetization in the MRI system caused by operation of the at least one gradient coil; and controlling, using the corrected gradient pulse sequence, the at least one gradient coil to generate one or more gradient pulses for imaging a patient.Type: GrantFiled: November 15, 2019Date of Patent: October 26, 2021Assignee: Hyperfine, Inc.Inventors: Rafael O'Halloran, Cedric Hugon, Laura Sacolick, Hadrien A. Dyvorne
