Patents by Inventor Kazuya Okamoto

Kazuya Okamoto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220183630
    Abstract: A subject information acquisition apparatus, comprises: a signal generation unit configured to generate a high-frequency signal corresponding to each of the frequencies; an acquisition unit configured to acquire a plurality of detection signals based on at least one of a reflection signal and a transmission signal; a signal selection unit configured to select at least one detection signal from the plurality of detection signals based on an index value of the plurality of detection signals; a coupling amount detecting unit configured to detect a coupling amount of near-field coupling due to an electric field between the antenna and the subject based on a detection signal; and a displacement detecting unit configured to generate a displacement signal indicating a displacement of the subject based on the coupling amount.
    Type: Application
    Filed: December 7, 2021
    Publication date: June 16, 2022
    Inventors: Ryuichi Nanaumi, Kazuya Okamoto, Takafumi Ohishi
  • Publication number: 20220148978
    Abstract: A substrate stacking apparatus that stacks first and second substrates on each other, by forming a contact region where the first substrate held by a first holding section and the second substrate held by a second holding section contact each other, at one portion of the first and second substrates, and expanding the contact region from the one portion by releasing holding of the first substrate by the first holding section, wherein an amount of deformation occurring in a plurality of directions at least in the first substrate differs when the contact region expands, and the substrate stacking apparatus includes a restricting section that restricts misalignment between the first and second substrates caused by a difference in the amount of deformation. In the substrate stacking apparatus above, the restricting section may restrict the misalignment such that an amount of the misalignment is less than or equal to a prescribed value.
    Type: Application
    Filed: November 18, 2021
    Publication date: May 12, 2022
    Applicant: NIKON CORPORATION
    Inventors: Isao SUGAYA, Kazuya OKAMOTO, Hajime MITSUISHI, Minoru FUKUDA
  • Patent number: 11307275
    Abstract: An array coil according to an embodiment includes a plurality of element coils, a first electrically-insulative coupler, and a second electrically-insulative coupler. Each of the plurality of element coils has a first fixation point and a second fixation point. The plurality of element coils are two-dimensionally arrayed in a first direction and a second direction while overlapping one another. The first electrically-insulative coupler is configured to couple together two or more of the first fixation points in the first direction. The second electrically-insulative coupler is configured to couple together two or more of the second fixation points in the first direction.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: April 19, 2022
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Kazuya Okamoto
  • Patent number: 11286262
    Abstract: The present invention provides industrially suitable processes for preparing intermediates in the production of substituted polycyclic pyridone derivatives having a cap-dependent endonuclease inhibitory activity. In the process as shown below, wherein each symbol is as defined in the specification, an optically active substituted tricyclic pyridone derivative of the formula (VII) is obtained in high yield and high enantioselectivity by subjecting a compound of the formula (III) or (VI) to intramolecular cyclization with controlling stereochemistry to obtain a compound of the formula (IV) having a removable functional group on an asymmetric carbon, and then removing the functional group thereof.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: March 29, 2022
    Assignee: SHIONOGI & CO., LTD.
    Inventors: Kazuya Okamoto, Tatsuhiko Ueno
  • Publication number: 20220050516
    Abstract: An apparatus includes: a memory and a first processor being configured to: control an operating frequency of a second processor connected to power supply devices that receive power from one or more power source systems to an operating frequency corresponding to a power value based on information on a number of power source systems and information on a number of uninterruptable power supplies connected to the power supply devices; and control, when the number of the power source systems is two or more and an uninterruptable power supply is connected to a power supply device in each of the power source systems, the operating frequency of the second processor to an operating frequency corresponding to a power value based on a number of power supply devices normally operating in a first power source system and a number of uninterruptable power supplies in a second power source system.
    Type: Application
    Filed: May 13, 2021
    Publication date: February 17, 2022
    Applicant: FUJITSU LIMITED
    Inventors: Kiyoshi Sudo, Kazuya Okamoto
  • Publication number: 20220007499
    Abstract: A module according to the present disclosure includes a circuit board, an electronic component on one of two principal surfaces of the circuit board, a connection conductor on the principal surface of the circuit board, and sealing resin on the principal surface of the circuit board. The electronic component and the connection conductor are covered with the sealing resin. The connection conductor includes a plate-shaped conductor and terminal sections. The plate-shaped conductor is disposed upright on the principal surface of the circuit board. The terminal sections extend from the plate-shaped conductor and away from the principal surface of the circuit board and are arranged side by side. Tip portions of the terminal sections are exposed at a surface of the sealing resin.
    Type: Application
    Filed: September 21, 2021
    Publication date: January 6, 2022
    Inventors: Kazuya OKAMOTO, Takashi HAGA, Masayoshi TAKAGI, Kazushige SATO
  • Patent number: 11211338
    Abstract: A substrate stacking apparatus that stacks first and second substrates on each other, by forming a contact region where the first substrate held by a first holding section and the second substrate held by a second holding section contact each other, at one portion of the first and second substrates, and expanding the contact region from the one portion by releasing holding of the first substrate by the first holding section, wherein an amount of deformation occurring in a plurality of directions at least in the first substrate differs when the contact region expands, and the substrate stacking apparatus includes a restricting section that restricts misalignment between the first and second substrates caused by a difference in the amount of deformation. In the substrate stacking apparatus above, the restricting section may restrict the misalignment such that an amount of the misalignment is less than or equal to a prescribed value.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: December 28, 2021
    Assignee: Nikon Corporation
    Inventors: Isao Sugaya, Kazuya Okamoto, Hajime Mitsuishi, Minoru Fukuda
  • Patent number: 11035917
    Abstract: According to one embodiment, an MRI apparatus includes a power transmitting unit a signal receiving unit and an image reconstruction unit. The power transmitting unit wirelessly transmits electric power to an RF coil device by magnetically coupled resonant type wireless power transfer. The signal receiving unit wirelessly receives a digitized nuclear magnetic resonance signal wirelessly transmitted from the RF coil device. The image reconstruction unit obtains a nuclear magnetic resonance signal received by the signal receiving unit, and reconstructs image data of an object on the basis of the nuclear magnetic resonance signal.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: June 15, 2021
    Assignee: Canon Medical Systems Corporation
    Inventor: Kazuya Okamoto
  • Patent number: 11035923
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a monitoring coil, a measuring device, and processing circuitry. The monitoring coil continuously transmits to a subject an electromagnetic wave having a monitoring frequency, and without touching the subject. The measuring device measures a change in the impedance related to the monitoring coil over time to thereby generate a biosignal of the subject. The processing circuitry is configured to determine the monitoring frequency that is higher than a frequency of a high-frequency magnetic field based on the information of the subject, and to controls a sequence related to the imaging based on the biosignal.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: June 15, 2021
    Assignee: Canon Medical Systems Corporation
    Inventor: Kazuya Okamoto
  • Patent number: 10962613
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a wireless communication unit, a radio frequency (RF) coil, and a specifying unit. The wireless communication unit includes an antenna and that transmits and receives a wireless signal through the antenna. The RF coil includes one or more antennas and that receives the wireless signal and to respond to the received wireless signal through the one or more antennas. The specifying unit that specifies the position and the orientation of the RF coil on the basis of a response result indicated by the response from the RF coil.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: March 30, 2021
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Sadanori Tomiha, Koji Akita, Hideo Kasami, Kazuya Okamoto
  • Patent number: 10884082
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a receiver array coil structured with a plurality of receiver coils. Each of the receiver coils included in the receiver array coil includes a coil element, a first tuning element configured to tune a tunable frequency of the receiver coil to a desired frequency, and a series circuit including a switching element and a second tuning element and being connected in parallel with the first tuning element. The switching element is configured to disconnect the first tuning element and the second tuning element from each other at the time of transmitting and is configured to arrange the first tuning element and the second tuning element to be electrically conductive with each other at the time of receiving. At least two receiver coils positioned adjacent to each other among the plurality of receiver coils are decoupled from each other.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: January 5, 2021
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventor: Kazuya Okamoto
  • Patent number: 10871812
    Abstract: A power supply circuit includes a first power supply line that couples a first input node from which first input power is input and an output node to each other, a second power supply line that couples a second input node from which second input power is input and the output node to each other, a power limit of the second input power being higher than that of the first input power, a converter that is inserted in the first power supply line and that converts a voltage of the first input power input from the first input node to a higher voltage or a lower voltage, an adjustment circuit that adjusts an output voltage of the converter to a voltage higher than a voltage of the second input power input from the second input node.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: December 22, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Hiroshi Shimamori, Kazuya Okamoto
  • Publication number: 20200335472
    Abstract: A substrate bonding apparatus that bonds a first substrate and a second substrate together, comprising a joining section that joins the first substrate and second substrate together aligned to each other for stacking; a detecting section that detects an uneven state on at least one of the first substrate and second substrate prior to joining by the joining section; and a determining section that determines whether the uneven state detected by the detecting section satisfies a predetermined condition, wherein the joining section does not join the first substrate and the second substrate if it is determined by the determining section that the uneven state does not satisfy the predetermined condition.
    Type: Application
    Filed: July 1, 2020
    Publication date: October 22, 2020
    Applicant: NIKON CORPORATION
    Inventors: Kazuya OKAMOTO, Isao SUGAYA, Naohiko KURATA, Masashi OKADA, Hajime MITSUISHI
  • Patent number: 10799142
    Abstract: A PET-MRI apparatus according to an embodiment includes a static magnetic field magnet, a gradient coil, a birdcage-type radio frequency coil, and at least one PET detector. The static magnetic field magnet is configured to generate a static magnetic field. The gradient coil is configured to apply a gradient magnetic field to a subject placed in the static magnetic field. The radio frequency coil includes two end rings and a plurality of rungs arranged at intervals along a circumferential direction of the end rings and is configured to transmit a radio frequency pulse or to receive a magnetic resonance signal from the subject. Further, the PET detector is housed inside a conductor structuring the rungs of the radio frequency coil.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: October 13, 2020
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Kazuya Okamoto, Kazuto Nakabayashi
  • Publication number: 20200247818
    Abstract: The present invention provides industrially suitable processes for preparing intermediates in the production of substituted polycyclic pyridone derivatives having a cap-dependent endonuclease inhibitory activity. In the process as shown below, wherein each symbol is as defined in the specification, an optically active substituted tricyclic pyridone derivative of the formula (VII) is obtained in high yield and high enantioselectivity by subjecting a compound of the formula (III) or (VI) to intramolecular cyclization with controlling stereochemistry to obtain a compound of the formula (IV) having a removable functional group on an asymmetric carbon, and then removing the functional group thereof.
    Type: Application
    Filed: October 5, 2018
    Publication date: August 6, 2020
    Applicant: Shionogi & Co., Ltd.
    Inventors: Kazuya OKAMOTO, Tatsuhiko UENO, Yoshio HATO, Toshikazu HAKOGI, Shohei MAJIMA
  • Publication number: 20200241098
    Abstract: A medical image processing apparatus of embodiments includes processing circuitry. The processing circuitry is configured to acquire a data and a g-factor map. The data is generated as a result of a reception by an RF coil. The processing circuitry is configured to determine strength of denoise performed on the data on the basis of the g-factor map and perform the denoise on the data.
    Type: Application
    Filed: January 28, 2020
    Publication date: July 30, 2020
    Applicant: Canon Medical Systems Corporation
    Inventors: Kensuke SHINODA, Kazuto NAKABAYASHI, Hitoshi KANAZAWA, Kazuya OKAMOTO, Hiroshi TAKAI, Nobuyuki KONUMA, Yuichi YAMASHITA
  • Patent number: 10698047
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a radio frequency coil and a control signal transmitting unit. The radio frequency coil is that receives a magnetic resonance signal emitted from a patient as a result of an application of a radio frequency magnetic field thereto and to transmit the received magnetic resonance signal via a wireless communication. The control signal transmitting unit that transmits control information that collectively defines operations to be performed by the radio frequency coil during a predetermined repetition time period, to the radio frequency coil via a wireless communication, prior to the start of the operations performed during the predetermined repetition time period. Further, the radio frequency coil that receives the control information via a wireless communication and to perform the operations on the basis of the received control information.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: June 30, 2020
    Assignee: Canon Medical Systems Corporation
    Inventors: Sadanori Tomiha, Koji Akita, Hideo Kasami, Kazuya Okamoto
  • Publication number: 20200200848
    Abstract: According to one embodiment, a medical information processing apparatus includes processing circuitry configured to derive an index value with respect to noise included in data associated with magnetic resonance signals collected by each of a plurality of reception coils, adjust a degree to which noise is removed from the data associated with the magnetic resonance signals based on the derived index value, remove noise from the data associated with the magnetic resonance signals based on the adjusted degree, and perform compositing of the data associated with the magnetic resonance signals from which noise has been removed.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 25, 2020
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Yuichi YAMASHITA, Kazuto NAKABAYASHI, Hitoshi KANAZAWA, Kazuya OKAMOTO, Hiroshi TAKAI, Nobuyuki KONUMA, Kensuke SHINODA
  • Patent number: 10670674
    Abstract: In one embodiment, an MRI apparatus, which is wirelessly connected to a wireless RF coil equipped with a plurality of coil elements, includes memory circuitry configured to store at least one program and processing circuitry configured, by executing the at least one program, to (a) set an imaging region of an object, (b) identify a position of each of the plurality of coil elements included in the wireless RF coil based on a signal obtained by radio communication with the wireless RF coil, and (c) select at least one of the plurality of coil elements with respect to three axes, based on positional relationship between the imaging region and the position of each of the plurality of coil elements.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: June 2, 2020
    Assignee: Canon Medical Systems Corporation
    Inventor: Kazuya Okamoto
  • Publication number: 20200158806
    Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a monitoring coil, a measuring device, and processing circuitry. The monitoring coil continuously transmits to a subject an electromagnetic wave having a monitoring frequency, and without touching the subject. The measuring device measures a change in the impedance related to the monitoring coil over time to thereby generate a biosignal of the subject. The processing circuitry is configured to determine the monitoring frequency that is higher than a frequency of a high-frequency magnetic field based on the information of the subject, and to controls a sequence related to the imaging based on the biosignal.
    Type: Application
    Filed: November 18, 2019
    Publication date: May 21, 2020
    Applicant: Canon Medical Systems Corporation
    Inventor: Kazuya OKAMOTO