Patents by Inventor Yohei Hashizume

Yohei Hashizume 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: 20220146609
    Abstract: According to one embodiment, a magnetic resonance imaging system includes a first power supply, one or more second power supplies and control circuitry. The first power supply supplies power to a magnetic resonance imaging apparatus at a time of power outage of a commercial power supply electrically connected to the magnetic resonance imaging apparatus. The second power supplies supply the power to the magnetic resonance imaging apparatus. The control circuitry determines a state of feeding from the first power supply and the second power supplies to the magnetic resonance imaging apparatus, and performs control of power consumption in the magnetic resonance imaging apparatus based on a determination result of the state of feeding.
    Type: Application
    Filed: October 21, 2021
    Publication date: May 12, 2022
    Applicant: Canon Medical Systems Corporation
    Inventors: Yohei HASHIZUME, Tomoyuki YOSHIDA, Kazuto NAKABAYASHI
  • Publication number: 20210199738
    Abstract: A couch according to an embodiment is a couch for a magnetic resonance imaging device, and includes a transformable couchtop, a movable couchtop, and processing circuitry. The transformable couchtop is configured to be at least partially transformable and to support a subject. The movable couchtop is configured to cause the transformable couchtop to move into a gantry of the magnetic resonance imaging device. The processing circuitry is configured to control transformation of the transformable couchtop. The processing circuitry is configured to acquire information regarding a receiver coil used in imaging of the subject, and to control the transformation of the transformable couchtop based on the information regarding the receiver coil.
    Type: Application
    Filed: December 11, 2020
    Publication date: July 1, 2021
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Kaoru IKEDA, Yohei HASHIZUME
  • Patent number: 10825175
    Abstract: An image processing apparatus acquires a plurality of pieces of first image data generated using volume data that is based on acoustic waves, extracts feature points from a plurality of pieces of the first image data, sets an unnecessary region to one or a plurality of pieces of the first image data using a distribution of the extracted feature points, reduces pixel values of the unnecessary region in one or a plurality of pieces of the first image data to which the unnecessary region has been set, and generates second image data using one or a plurality of pieces of the first image data in which the pixel values of the unnecessary region have been reduced and one or a plurality of pieces of the first image data in which the unnecessary region is not included.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: November 3, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshifumi Fukui, Yohei Hashizume
  • Publication number: 20200192620
    Abstract: An information processing apparatus is configured to acquire a first medical image and a second medical image from a database, and control displaying on a display unit such that the second medical image is displayed on the display unit for a period for which a signal is being received which is a signal indicating an instruction to display the second medical image on the display unit and which is transmitted for a period for which one inputting operation is being performed by an operator, and the first medical image is displayed on the display unit for a period for which the signal is not received.
    Type: Application
    Filed: February 26, 2020
    Publication date: June 18, 2020
    Inventors: Kouichi Kato, Yohei Hashizume
  • Publication number: 20200193689
    Abstract: An information processing apparatus is configured to cause a display unit to display a rendered image by rendering three-dimensional medical image data in a first region set for a region to render, cause the display unit to display a moving image of the rendered images respectively associated with a plurality of the regions to render different from each other by gradually increasing the region to render from the first region to a second region in a period in which the display control unit is receiving a first instruction signal that is sent in response to an instruction from a user while the rendered image is being displayed, and terminate a process of gradually increasing the region to render when the display control unit stops receiving the first instruction signal or when the region to render reaches the second region.
    Type: Application
    Filed: February 24, 2020
    Publication date: June 18, 2020
    Inventors: Kouichi Kato, Yohei Hashizume
  • Publication number: 20200164219
    Abstract: A probe unit for receiving an acoustic wave includes a probe, an output unit, and a connector, wherein the output unit is configured to output an acoustic wave signal detected by the probe to an acoustic wave device, and the connector is configured to be detachably connected with a light irradiation unit that includes a light emitting unit and a target guide, such that the probe and the connector are disposed so as to allow an operator to visually check a region to be irradiated when the operator places the probe so as to be acoustically coupled with an object.
    Type: Application
    Filed: November 18, 2019
    Publication date: May 28, 2020
    Inventors: Masaki Hosoda, Yohei Hashizume, Nobuhiro Ito, Kazuhiko Fukutani
  • Publication number: 20190200875
    Abstract: Disclosed is a photoacoustic apparatus including: a photoacoustic probe having a light irradiating unit that irradiates light onto an object and an acoustic wave receiving unit that receives an acoustic wave generated from the object by the irradiation of the light; a specific information acquiring unit that acquires specific information of the object based on the acoustic wave; an order acquiring unit that acquires an order relating to the acquisition of the specific information from an ordering system; an object information acquiring unit that acquires object information relating to the object from an electronic medical record; and a control condition determining unit that determines a control condition of photoacoustic probe based on the order and the object information.
    Type: Application
    Filed: December 14, 2018
    Publication date: July 4, 2019
    Inventors: Kohtaro Umezawa, Norihiko Utsunomiya, Yohei Hashizume, Fumitaro Masaki, Toshifumi Fukui
  • Patent number: 10319102
    Abstract: An image processing apparatus according an exemplary embodiment of the present invention estimates for a plurality of positions in a target image an estimated value of an error in registration for acquiring a third three-dimensional image by deforming at least one of a first three-dimensional image of a subject and a second three-dimensional image, one of the three-dimensional images being the target image, designates a cross section in the target image, acquires a statistical value of the error in the designated cross section based on the estimated value estimated for a plurality of positions in the cross section, and displays the statistical value.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: June 11, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takaaki Endo, Kiyohide Satoh, Yasufumi Asao, Yohei Hashizume
  • Publication number: 20190164284
    Abstract: An image processing apparatus acquires a plurality of pieces of first image data generated using volume data that is based on acoustic waves, extracts feature points from a plurality of pieces of the first image data, sets an unnecessary region to one or a plurality of pieces of the first image data using a distribution of the extracted feature points, reduces pixel values of the unnecessary region in one or a plurality of pieces of the first image data to which the unnecessary region has been set, and generates second image data using one or a plurality of pieces of the first image data in which the pixel values of the unnecessary region have been reduced and one or a plurality of pieces of the first image data in which the unnecessary region is not included.
    Type: Application
    Filed: November 14, 2018
    Publication date: May 30, 2019
    Inventors: Toshifumi Fukui, Yohei Hashizume
  • Publication number: 20190164286
    Abstract: A first region of interest (ROI) image including a first region of interest in a first medical image and a second ROI image including a second region of interest in a second medical image are acquired, a third ROI image is generated based on the first ROT image and the second ROI image, and a third medical image and the third ROI image are superimposed on each other on a display unit.
    Type: Application
    Filed: November 21, 2018
    Publication date: May 30, 2019
    Inventor: Yohei Hashizume
  • Patent number: 10288719
    Abstract: An object information acquiring apparatus, comprises a light irradiating unit configured to irradiate an object with light; a probe configured to receive an acoustic wave generated from the object and convert into an electrical signal; a characteristic information acquiring unit configured to acquire characteristic information relating to the object based on the electrical signal; an area information acquiring unit configured to acquire information relating to a reachable area of the light; a location detecting unit configured to acquire an operator location; and a determining unit configured to determine whether the operator location is in a first state where the operator location overlaps with the reachable area of the light or a second state where the operator location does not overlap with the reachable area of the light.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: May 14, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Mie Okano, Yohei Hashizume, Yasufumi Asao
  • Publication number: 20190029526
    Abstract: An image processing apparatus that processes medical image data derived from a photoacoustic wave generated by irradiating a subject with light and includes a central processing unit (CPU) and a memory connected to each other, includes a first acquisition unit configured to acquire information representing a position of a blood vessel in the medical image data, a second acquisition unit configured to determine a change point of an image value of the medical image data in a running direction of the blood vessel based on the medical image data and the information representing the position of the blood vessel to acquire information representing a position corresponding to the change point, and a third acquisition unit configured to acquire information representing a position of an target region based on the information representing the position corresponding to the change point.
    Type: Application
    Filed: July 23, 2018
    Publication date: January 31, 2019
    Inventor: Yohei Hashizume
  • Publication number: 20170242096
    Abstract: An object information acquiring apparatus, comprises a light irradiating unit configured to irradiate an object with light; a probe configured to receive an acoustic wave generated from the object and convert into an electrical signal; a characteristic information acquiring unit configured to acquire characteristic information relating to the object based on the electrical signal; an area information acquiring unit configured to acquire information relating to a reachable area of the light; a location detecting unit configured to acquire an operator location; and a determining unit configured to determine whether the operator location is in a first state where the operator location overlaps with the reachable area of the light or a second state where the operator location does not overlap with the reachable area of the light.
    Type: Application
    Filed: February 7, 2017
    Publication date: August 24, 2017
    Inventors: Mie Okano, Yohei Hashizume, Yasufumi Asao
  • Publication number: 20170188837
    Abstract: Provided is an object information acquiring apparatus which uses a phantom having a base material, an absorber arranged inside the base material, and an identification tag, the apparatus including: a probe which receives an acoustic wave and outputs an electrical signal; a unit which reads in information from the identification tag; a unit which generates calibration information using an electrical signal based on an acoustic wave propagated from the phantom, and the read information; and a unit which acquires object information using the electrical signal based on the acoustic wave propagated from the phantom, wherein the identification tag stores information relating to the phantom.
    Type: Application
    Filed: June 10, 2015
    Publication date: July 6, 2017
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yohei Hashizume, Takahiro Suita, Yoshie Ito, Yasufumi Asao
  • Publication number: 20170169579
    Abstract: An image processing apparatus according an exemplary embodiment of the present invention estimates for a plurality of positions in a target image an estimated value of an error in registration for acquiring a third three-dimensional image by deforming at least one of a first three-dimensional image of a subject and a second three-dimensional image, one of the three-dimensional images being the target image, designates a cross section in the target image, acquires a statistical value of the error in the designated cross section based on the estimated value estimated for a plurality of positions in the cross section, and displays the statistical value.
    Type: Application
    Filed: December 14, 2016
    Publication date: June 15, 2017
    Inventors: Takaaki Endo, Kiyohide Satoh, Yasufumi Asao, Yohei Hashizume
  • Publication number: 20170055844
    Abstract: An apparatus according to the present invention includes: a conversion element for converting an acoustic wave generated from an object when irradiated with light, to a reception signal; a signal processing unit for acquiring specific information of the object using the reception signal; a status measuring unit for measuring a status of placement of the object; a determining unit for determining whether the object is placed at an appropriate position for a photoacoustic measurement using a measurement result of the status measuring unit; and a noticing unit for noticing a method of moving the object on the basis of a determination result of the determining unit.
    Type: Application
    Filed: August 22, 2016
    Publication date: March 2, 2017
    Inventors: Kohtaro Umezawa, Yohei Hashizume, Mie Okano, Yohei Motoki
  • Publication number: 20160025685
    Abstract: A phantom used for calibrating an object information acquiring apparatus that irradiates light into an object and acquires characteristic information inside the object based on an acoustic wave propagated from the object, the phantom comprises a base material; and a simulated tissue portion that simulates a three-dimensional structure of a tissue inside a living body, wherein the simulated tissue portion is disposed inside the base material, and has a simulated layer, which is a layer simulating optical characteristics of the tissue inside the living body, on the surface thereof.
    Type: Application
    Filed: July 16, 2015
    Publication date: January 28, 2016
    Inventors: Takahiro Suita, Ryo Ogawa, Yohei Hashizume, Yasufumi Asao
  • Patent number: 8237345
    Abstract: The display apparatus includes an airtight container having an insulating first substrate, an insulating second substrate which faces the first substrate, a conductive frame arranged between the first substrate and the second substrate, a conductive layer which is provided between the conductive frame and the first substrate and which is airtightly bonded to the conductive frame, and an insulating layer which is provided between the conductive layer and the first substrate and which airtightly bonds between the conductive layer and the first substrate; a display unit provided inside the airtight container; wires connected to the display unit; and electrodes. The insulating layer insulates the wires from the conductive frame and the electrodes and has through-holes penetrating from the electrodes toward the conductive frame, and the conductive layer is connected to the electrodes through the through-holes.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: August 7, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Fumikazu Kobayashi, Yohei Hashizume
  • Patent number: 8148888
    Abstract: A device includes a substrate, an insulating member disposed on a surface of the substrate, a gate, and a cathode. The insulating member has an upper surface apart from the surface of the substrate, and a side surface rising from the surface of the substrate between the upper surface and the surface of the substrate. The gate is disposed on the upper surface of the insulating member. The cathode is disposed on the side surface of the insulating member and has a portion opposing the gate. The side surface of the insulating member on which the cathode is disposed has a protruding portion protruding from an imaginary line connecting a position where the portion opposing the gate lies and a position where the insulating member rises from the surface of the substrate.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: April 3, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yohei Hashizume
  • Patent number: 8106575
    Abstract: An electron emission device in an electron beam apparatus includes an insulating member having a recess on a surface thereof, a gate, and a cathode opposed to the gate via the recess. The recess has a depression formed in a surface of the recess.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: January 31, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yohei Hashizume