Patents Examined by G. M. Hyder
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Patent number: 11424060Abstract: A superconducting coil of an embodiment includes a winding frame; a superconducting wire wound around the winding frame, the superconducting wire including a first region and a second region facing the first region; and a first layer placed between the first region and the second region, the first layer including a first particle and a thermosetting resin, the first particle including crystal having volume resistivity equal to or higher than 10?2 ?·m and having cleavage, and the thermosetting resin surrounding the first particle.Type: GrantFiled: August 30, 2019Date of Patent: August 23, 2022Assignee: Kabushiki Kaisha ToshibaInventors: Mariko Hayashi, Takashi Kuboki
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Patent number: 11422213Abstract: An apparatus for providing a B0 magnetic field for a magnetic resonance imaging system. The apparatus includes at least one permanent B0 magnet to contribute a magnetic field to the B0 magnetic field for the MRI system and a ferromagnetic frame configured to capture and direct at least some of the magnetic field generated by the B0 magnet. The ferromagnetic frame includes a first post having a first end and a second end, a first multi-pronged member coupled to the first end, and a second multi-pronged member coupled to the second end, wherein the first and second multi-pronged members support the at least one permanent B0 magnet.Type: GrantFiled: December 9, 2020Date of Patent: August 23, 2022Assignee: Hyperfine Operations, Inc.Inventors: Cedric Hugon, Hadrien A. Dyvorne, Michael Stephen Poole
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Patent number: 11422215Abstract: The disclosure relates to a gradient coil unit comprising at least one first conductor structure, which is configured to generate a magnetic field gradient in a first direction, and an eddy current compensating conductor structure, which is configured to compensate for a first magnetic field. The first magnetic field is generated by a current induced in the first conductor structure as a result of activation of a conductor structure comprised by the gradient coil unit.Type: GrantFiled: December 16, 2020Date of Patent: August 23, 2022Assignee: Siemens Healthcare GmbHInventor: Peter Dietz
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Patent number: 11409088Abstract: In order to provide an optical system to be installed in a projection system which is capable of allowing a patient to view a clear image in a diagnostic imaging apparatus, the optical system according to the present invention includes a Fresnel lens having a base material and a plurality of annular sections arranged around a center axis on a reference surface of the base material, and a deflection element configured to deflect light from the Fresnel lens. In a cross section including the center axis, an inclination angle of the annular sections to the reference surface changes asymmetrically between from a middle point of one and other ends of the Fresnel lens to the one end and from the middle point to the other end.Type: GrantFiled: February 3, 2020Date of Patent: August 9, 2022Assignee: CANON KABUSHIKI KAISHAInventor: Seiji Nakahara
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Patent number: 11399733Abstract: A pediatric magnetic resonance (MRI) system and sub-system are provided. The pediatric MRI system includes a magnet-gradient assembly, an RF shield-body coil assembly and a pediatric MRI sub-system. The pediatric MRI sub-system includes an infant warmer or isolette having a patient section for accommodating a patient. The infant warmer is positionable relative to the magnet-gradient-body coil assembly of the pediatric MRI system. The pediatric MRI sub-system also includes a warming mattress arranged within the patient section of the infant warmer. The infant warming mattress includes an interior space filled at least partially with a host medium and a conduction heating system at least partially arranged in the interior space to conduct heat to the interior space of the infant warming mattress. The pediatric MRI system also includes at least one local radio frequency (RF) coil that is positionable within the patient section of the infant warmer.Type: GrantFiled: September 21, 2018Date of Patent: August 2, 2022Assignee: Advanced Imaging Research, Inc.Inventor: Ravi Srinivasan
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Patent number: 11404191Abstract: A superconducting magnet arrangement comprises a field coil assembly with coil windings that when in operation are electrically superconducting. The field coil assembly is circuited between connection ports for a voltage supply. A switching module switches a sub-section of the field coil assembly's coil windings between its electrical superconducting and electrical resistive states, said sub-section forming a switching coil circuited between the connection ports. In the operational state where both the switching coil and the field coil(s) are superconducting and carry a permanent electrical current, the field coil(s) and the switching coil together generate a stationary magnetic field. According to the invention the switch windings give a significant contribution to the magnetic field. The field coil assembly's coil windings that may be switched between it electrically superconducting and resistive states form the switching coil.Type: GrantFiled: October 29, 2018Date of Patent: August 2, 2022Assignee: Koninklijke Philips N.V.Inventor: Johannes Adrianus Overweg
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Patent number: 11402763Abstract: 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: GrantFiled: April 20, 2021Date of Patent: August 2, 2022Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventor: Nao Itabashi
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Patent number: 11391684Abstract: The present disclosure relates to a method for measuring aromatic contents in a hydrocarbon solution. More specifically, it relates to a measurement method capable of quickly and accurately checking aromatic contents in a compound, particularly in a hydrocarbon, in a solution state without a high-temperature drying process.Type: GrantFiled: November 29, 2018Date of Patent: July 19, 2022Assignee: HANWHA SOLUTIONS CORPORATIONInventors: Yong Hee Lee, Wan Jae Myeong, Woo Jin Park, Bong Sik Jeon, Eui Geun Jung
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Patent number: 11393615Abstract: A method for charging an HTS shim device in a cryostat having a room temperature bore using a charging device. A shim switch temporarily interrupts the superconducting state in a section of an HTS shim conductor path. The charging device includes a primary circuit with a normal-conducting charging coil and the conductor path forms a secondary circuit. A current change in the secondary circuit results from a change in magnetic flux generated by the charging coil through the secondary circuit. In a first phase the shim switch is opened to interrupt the superconducting state in a section of the conductor path, the charging coil is positioned in the bore, and the current in the primary circuit is changed; in a second phase, the conductor path is superconductingly closed; in a third phase, the current in the primary circuit is changed and/or the charging coil is removed from the bore.Type: GrantFiled: December 6, 2019Date of Patent: July 19, 2022Assignee: BRUKER SWITZERLAND AGInventors: Kenneth J. Guenter, Robert Schauwecker
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Patent number: 11391800Abstract: A shim device having an HTS shim conductor track (C) and a shim switch (Sw1) The track (C) is curved around an axis (z) and the shim switch is arranged in a first conductor track portion (S1), to interrupt its superconducting state. The track (C) extends around at least a first opening (O1) and a second opening (O2) such that the track (C) has a first circumferential current path (L1), a second circumferential current path (L2) and a third circumferential current path (L3). Two of the three paths (L1, L2, L3) each surround only one of the two openings and one of the three paths (L1, L2, L3) surrounds both openings. The first portion (S1) is part of only the first path (L1) and the second path (L2). This produces a persistent HTS shim for field homogenization, allowing both a complex field distribution and a large degree of design freedom.Type: GrantFiled: March 31, 2021Date of Patent: July 19, 2022Assignee: BRUKER SWITZERLAND AGInventors: Kenneth J. Guenter, Robert Schauwecker
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Patent number: 11385308Abstract: The present disclosure relates to a magnetic resonance (MR) scanner and magnetic resonance imaging (MRI) system. The MR scanner includes a superconducting magnet, a superconducting quantum processor, a first cooling system surrounding the superconducting magnet, and a second cooling system surrounding the superconducting quantum processor. The second cooling system is embedded in the first cooling system.Type: GrantFiled: December 4, 2019Date of Patent: July 12, 2022Assignee: Siemens Healthcare GmbHInventor: Stefan Popescu
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Patent number: 11378630Abstract: Methods and apparatus for reducing noise in RF signal chain circuitry for a low-field magnetic resonance imaging system are provided. A switching circuit in the RF signal chain circuitry may include at least one field effect transistor (FET) configured to operate as an RF switch at an operating frequency of less than 10 MHz. A decoupling circuit may include tuning circuitry coupled across inputs of an amplifier and active feedback circuitry coupled between an output of the amplifier and an input of the amplifier, wherein the active feedback circuitry includes a feedback capacitor configured to reduce a quality factor of an RF coil coupled to the amplifier.Type: GrantFiled: November 10, 2020Date of Patent: July 5, 2022Assignee: Hyperfine Operations, Inc.Inventors: Hadrien A. Dyvorne, Todd Rearick
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Patent number: 11381406Abstract: A physical unclonable function is disclosed. A highly random distribution of magnetic particles within a thermoplastic polymer is created by magnetizing magnetizable particles in solid pellet feed material before feeding the solid pellets into an injection molding machine. Other devices and processes are disclosed.Type: GrantFiled: December 8, 2020Date of Patent: July 5, 2022Assignee: Lexmark International, Inc.Inventors: Gary Allen Denton, James Paul Drummond, Kelly Ann Killeen
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Patent number: 11372031Abstract: A high voltage power supply apparatus includes: a comparator, a transformer, a rectifier, and a detector. The comparator is to control output of a basic voltage. A high voltage based on the basic voltage is used to perform an image forming job in an image forming apparatus. The transformer is to output an alternating current voltage of a second side of the transformer by amplifying an alternating current voltage of a first side of the transformer, the amplifying being based on a resonance phenomenon induced from the basic voltage. The rectifier is to output the high voltage by rectifying the alternating current voltage of the second side. The detector is to sense a voltage applied to the comparator and a voltage applied to the transformer, and is to output operational state information of the high voltage power supply apparatus based on the sensed voltages.Type: GrantFiled: September 11, 2019Date of Patent: June 28, 2022Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Kwanghoon Cheon, Jinyun Park, Jonghwa Cho
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Patent number: 11372062Abstract: According to one embodiment, a coil element includes an extendable and contractible coil and a capacitor. The capacitor is connected to the coil and has an electrostatic capacity which changes due to a physical change in response to extension or contraction of the coil.Type: GrantFiled: October 14, 2020Date of Patent: June 28, 2022Assignee: Canon Medical Systems CorporationInventors: Sadanori Tomiha, Takafumi Ohishi, Sho Kawajiri, Satoshi Imai
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Patent number: 11372071Abstract: A method may include obtaining a plurality of groups of imaging data. Each group of the plurality of groups of imaging data may be generated based on MR signals acquired by an MR scanner via scanning a subject using a diffusion sequence. The method may also include determining one or more correction coefficients associated with an error caused by the diffusion sequence for each group of the plurality of groups of imaging data. The method may also include determining, based on the one or more correction coefficients corresponding to the each group of the plurality of groups of imaging data, a plurality of groups of corrected imaging data. The method may further include determining averaged imaging data by averaging the plurality of groups of corrected imaging data in a complex domain and generating, based on the averaged imaging data, an MR image.Type: GrantFiled: November 4, 2020Date of Patent: June 28, 2022Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.Inventors: Guobin Li, Nan Liu, Zhaopeng Li
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Patent number: 11369453Abstract: Apparatus for imaging during surgical procedures includes an operating room for the surgical procedure and an MRI for obtaining images periodically through the surgical procedure by moving the magnet up to the table. The magnet wire is formed of a superconducting material such as magnesium di-boride or Niobium-Titanium which is cooled by a vacuum cryocooling system to superconductivity without use of liquid helium. The magnet weighs less than 1 to 2 tonne and has a floor area in the range 15 to 35 sq feet so that it can be carried on the floor by a support system having an air cushion covering the base area of the magnet having side skirts so as to spread the weight over the entire base area. The magnet remains in the room during surgery and is powered off to turn off the magnetic field when in the second position remote from the table.Type: GrantFiled: January 20, 2020Date of Patent: June 28, 2022Assignee: Sino Canada Health Engineering Research Institute (Hefei) Ltd.Inventors: Gong Zhang, John Saunders, Gordon A. Klimenko, Darrell Van Mol
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Patent number: 11366187Abstract: A multi-channel RF transmit system (1) especially for use in a magnetic resonance examination system comprising, a plurality of RF channels (18, 19) wherein each of the RF channels (18, 19) has an RF amplifier. The multi-channel RF transmit system (1) further comprises a power supply device (2) configured to supply power to the amplifiers (4, 5), a first capacitor bank (6), wherein the first capacitor bank (6) is connected to the power supply device (2) and connected to a first RF amplifier (4), a second capacitor bank (7), wherein the second capacitor bank (7) is connected to the power supply device (2) and connected to a second RF amplifier (5) and a third capacitor bank (8) also connected to the power supply device (2). The third capacitor bank (8) is connected to a DC switch (9), wherein the DC switch (9) is configured to switch the power supplied by the third capacitor bank (8) to the first amplifier (4) or the second amplifier (5).Type: GrantFiled: February 12, 2019Date of Patent: June 21, 2022Assignee: Koninklijke Philips N.V.Inventors: Peter Vernickel, Christoph Leussler
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Patent number: 11357420Abstract: According to some aspects, a magnetic resonance imaging system capable of imaging a patient is provided. The magnetic resonance imaging system comprising at least one B0 magnet to produce a magnetic field to contribute to a B0 magnetic field for the magnetic resonance imaging system and a member configured to engage with a releasable securing mechanism of a radio frequency coil apparatus, the member attached to the magnetic resonance imaging system at a location so that, when the member is engaged with the releasable securing mechanism of the radio frequency coil apparatus, the radio frequency coil apparatus is secured to the magnetic resonance imaging system substantially within an imaging region of the magnetic resonance imaging system.Type: GrantFiled: August 28, 2019Date of Patent: June 14, 2022Assignee: Hyperfine Operations, Inc.Inventors: Anne Michele Nelson, Gang Chen
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Patent number: 11360165Abstract: Techniques are disclosed for assisting in positioning an accessory unit on a patient for a magnetic resonance examination. Also disclosed is a magnetic resonance apparatus, which is designed to perform a method for assisting in positioning an accessory unit on a patient for a magnetic resonance examination. A corresponding computer program product is also disclosed, which is designed to perform a method for assisting in positioning an accessory unit on a patient for a magnetic resonance examination, and an electronically readable data storage medium containing the computer program.Type: GrantFiled: May 17, 2019Date of Patent: June 14, 2022Assignees: Siemens Healthcare GmbH, Designaffairs GmbHInventors: Katharina Hesels, Jonas Vollmer, Sabine Norosinski, George William Ferguson, Roman Achleitner