Patents by Inventor Akihito Takahashi

Akihito Takahashi 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).

  • Patent number: 11974340
    Abstract: UE (200) executes dual connectivity in which it simultaneously connects to a radio base station and other radio base station. The UE (200) includes a transmitting unit (210) that transmits to the radio base station and the other radio base station uplink transmission related information indicating an uplink transmission state, and a control unit (230) that controls transmission or stop of transmission of the uplink transmission related information of a predetermined type.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: April 30, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Tooru Uchino, Hideaki Takahashi, Akihito Hanaki
  • Patent number: 11971327
    Abstract: A blowby gas treatment device includes a pressure control valve, a fresh air induction pipe, a first blowby gas pipe, a second blowby gas pipe, a shutoff valve, a one-way valve, and a PCV valve. A leak diagnosis includes a first-stage diagnosis to determine whether or not falling of a pressure in a crank case after closing of the shutoff valve under a non-supercharging condition is normal. A second-stage diagnosis is implemented by using an air fuel ratio feedback control, and determining whether or not a sensed intake air quantity obtained by an air flow meter is equal to an actual intake air quantity flowing into a cylinder set. When the sensed intake air quantity is equal to the actual intake air quantity, presence of an in-system leak is determined, and when the actual intake air quantity is larger, presence of an out-of-system leak is determined.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: April 30, 2024
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Toshihiro Yamagata, Akihito Takahashi, Shimpei Yamashita
  • Patent number: 11945230
    Abstract: An image-recording apparatus includes: a first tank defining a first storage chamber; a second tank defining a second storage chamber; a conveying mechanism for conveying sheets along a conveying path extending in a depthwise direction and a widthwise direction perpendicular to a vertical direction and the depthwise direction; and a recording head including a nozzle. Liquid in the first storage chamber is supplied through a communication port to the second storage chamber and then to the recording head through a liquid outlet port. The second storage chamber is positioned further in a first depthwise direction relative to the nozzle and further in a first widthwise direction relative to the conveying path. A volume of a prescribed space above a liquid level equal to a height of the communication port in the second storage chamber is greater than that of a liquid channel between the liquid outlet port and the nozzle.
    Type: Grant
    Filed: May 31, 2023
    Date of Patent: April 2, 2024
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Masahiro Hayashi, Akinari Ishibe, Yuma Tanabe, Masatake Sato, Akihito Kobayashi, Hiroaki Takahashi
  • Publication number: 20230360253
    Abstract: A medical information processing apparatus includes a processing circuit. The processing circuit is configured to: determine an operating area relating to a device having a predetermined movable range, identify positional coordinates corresponding to the operating area in an examination room and positional coordinates of an obstacle in the examination room, based on a camera image taken by an optical camera installed in the examination room; and report a detection result if the positional coordinates of the obstacle are included in the positional coordinates of the operating area.
    Type: Application
    Filed: April 25, 2023
    Publication date: November 9, 2023
    Applicant: Canon Medical Systems Corporation
    Inventors: Akihito TAKAHASHI, Yoshiyasu HAYASHI, Junichi YAMAGISHI, Yosuke KAYUKAWA, Hag Chang LEE, Hisayasu YUMIZA
  • Publication number: 20230351647
    Abstract: According to one embodiment, an X-ray diagnostic apparatus including processing circuitry. The processing circuitry is configured to cause an X-ray detector to read a signal in a non-destructive readout before termination of X-ray exposure, the signal being accumulated in an X-ray detection element; cause the X-ray detector to read the signal in a destructive readout after termination of X-ray exposure; acquire first projection data generated based on the signal read in the non-destructive readout and acquire second projection data generated based on the signal read in the destructive readout; estimate, based on the second projection data, a saturation region in which saturation is occurring; and replace a signal in the saturation region of the second projection data with a signal in the saturation region of the first projection data.
    Type: Application
    Filed: March 28, 2023
    Publication date: November 2, 2023
    Applicant: Canon Medical Systems Corporation
    Inventors: Jumpei OGASAWARA, Kunio SHIRAISHI, Hajime YOSHIDA, Akihito TAKAHASHI, Yasuto HAYATSU
  • Publication number: 20230165546
    Abstract: A medical image processing apparatus according to an embodiment includes processing circuitry that obtains first X-ray images, a second X-ray image taken later than the first X-ray images, first biological information to a periodic movement of a subject at the times of taking the first X-ray images and second biological information to a periodic movement of the subject at the time of taking the second X-ray image; detects a characteristic position to a first device from each of the first X-ray images; associates the characteristic position with a time phase in the first biological information, based on the first X-ray images and first biological information; and displays device information to the first device superimposed on the second X-ray image, by using a result of the associating and time phase in the second biological information.
    Type: Application
    Filed: November 21, 2022
    Publication date: June 1, 2023
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Akihito TAKAHASHI, Kenji MIZUTANI, Mika TAKAYA, Takahiro YAMAGUCHI
  • Publication number: 20230157657
    Abstract: According to one embodiment, an X-ray diagnostic apparatus includes processing circuitry. The processing circuitry is configured to acquire a two-dimensional first X-ray image based on X-ray imaging using a first continuous X-ray spectrum, and acquire a two-dimensional second X-ray image based on X-ray imaging using a second continuous X-ray spectrum different from the first continuous X-ray spectrum. Further, the processing circuitry is configured to generate a two-dimensional virtual third X-ray image that simulates an X-ray image using a third continuous X-ray spectrum different from the first continuous X-ray spectrum and the second continuous X-ray spectrum, based on the first X-ray image and the second X-ray image.
    Type: Application
    Filed: November 23, 2022
    Publication date: May 25, 2023
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Akihito TAKAHASHI, Haruki IWAI, Tomoki FUJITO, Yuki TOTSUKA
  • Patent number: 11624676
    Abstract: A blowby gas treatment device includes a pressure control valve, a fresh air induction pipe, a first blowby gas pipe, a second blowby gas pipe, a shutoff valve, a one-way valve, and a PCV valve. A leak diagnosis includes a first-stage diagnosis to determine whether or not falling of a pressure in a crank case after closing of the shutoff valve under a non-supercharging condition is normal. A second-stage diagnosis is implemented by moving the pressure control valve from a fully opened state into a fully closed state, and determining whether an intake air quantity in each state is equal to each other. When the intake air quantity in each state is equal to each other, presence of an in-system leak is determined. When a fully closed state intake air quantity is different from a fully opened state intake air quantity, presence of an out-of-system leak is determined.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: April 11, 2023
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Toshihiro Yamagata, Akihito Takahashi, Shimpei Yamashita
  • Publication number: 20220351380
    Abstract: According to embodiment, an image processing apparatus comprising a specifying unit and a display controller. The specifying unit that specifies an acquisition position of an indicator relating to blood flow on a blood vessel-containing image collected by a medical image diagnostic apparatus. The display controller that displays the acquisition position on the blood vessel-containing image and displays the indicator on a display unit in association with the acquisition position.
    Type: Application
    Filed: July 13, 2022
    Publication date: November 3, 2022
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Akihito TAKAHASHI, Satoshi WAKAI, Takuya SAKAGUCHI
  • Publication number: 20220291074
    Abstract: A blowby gas treatment device includes a pressure control valve, a fresh air induction pipe, a first blowby gas pipe, a second blowby gas pipe, a shutoff valve, a one-way valve, and a PCV valve. A leak diagnosis includes a first-stage diagnosis to determine whether or not falling of a pressure in a crank case after closing of the shutoff valve under a non-supercharging condition is normal. A second-stage diagnosis is implemented by moving the pressure control valve from a fully opened state into a fully closed state, and determining whether an intake air quantity in each state is equal to each other. When the intake air quantity in each state is equal to each other, presence of an in-system leak is determined. When a fully closed state intake air quantity is different from a fully opened state intake air quantity, presence of an out-of-system leak is determined.
    Type: Application
    Filed: June 2, 2020
    Publication date: September 15, 2022
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Toshihiro YAMAGATA, Akihito TAKAHASHI, Shimpei YAMASHITA
  • Publication number: 20220276113
    Abstract: A blowby gas treatment device includes a pressure control valve, a fresh air induction pipe, a first blowby gas pipe, a second blowby gas pipe, a shutoff valve, a one-way valve, and a PCV valve. A leak diagnosis includes a first-stage diagnosis to determine whether or not falling of a pressure in a crank case after closing of the shutoff valve under a non-supercharging condition is normal. A second-stage diagnosis is implemented by using an air fuel ratio feedback control, and determining whether or not a sensed intake air quantity obtained by an air flow meter is equal to an actual intake air quantity flowing into a cylinder set. When the sensed intake air quantity is equal to the actual intake air quantity, presence of an in-system leak is determined, and when the actual intake air quantity is larger, presence of an out-of-system leak is determined.
    Type: Application
    Filed: June 2, 2020
    Publication date: September 1, 2022
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Toshihiro YAMAGATA, Akihito TAKAHASHI, Shimpei YAMASHITA
  • Patent number: 11423532
    Abstract: According to embodiment, an image processing apparatus comprising a specifying unit and a display controller. The specifying unit that specifies an acquisition position of an indicator relating to blood flow on a blood vessel-containing image collected by a medical image diagnostic apparatus. The display controller that displays the acquisition position on the blood vessel-containing image and displays the indicator on a display unit in association with the acquisition position.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: August 23, 2022
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Akihito Takahashi, Satoshi Wakai, Takuya Sakaguchi
  • Patent number: 11364002
    Abstract: A medical-image processing apparatus and a medical-image diagnostic apparatus according to an embodiment include an acquisition unit, a generation unit, an identification unit, and a display control unit. The acquisition unit acquires a medical image containing a blood vessel collected by the medical-image diagnostic apparatus. The generation unit generates an anatomical structure model based on the medical image acquired by the acquisition unit. The identification unit identifies a position, on the medical image, of an index relating to blood flow analyzed through fluid analysis using the anatomical structure model. The display control unit displays the position of the index on the medical image, and also displays the index associated with the position of the index on the medical image.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: June 21, 2022
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Satoshi Wakai, Takuya Sakaguchi, Akihito Takahashi
  • Patent number: 11334998
    Abstract: According to one embodiment, a medical image processing apparatus includes processing circuitry. The processing circuitry specifies, before position alignment between a first X-ray image and a second X-ray image which is acquired with a device inserted, a device area candidate in the second X-ray image as a candidate of an area where the device appears. The processing circuitry performs the position alignment using first processing of removing the specified device area candidate or second processing of reducing a contribution of the specified device area candidate.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: May 17, 2022
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Hirona Oikawa, Shingo Abe, Kunio Shiraishi, Toshiya Waku, Shumpei Ohashi, Akihito Takahashi, Saki Hashimoto, Jumpei Ogasawara
  • Patent number: 11241206
    Abstract: An X-ray imaging apparatus according to an embodiment includes an X-ray generator, an X-ray detector, an input interface, and processing circuitry. The processing circuitry is configured to: display, on a display, an image based on X-rays detected by the X-ray detector; control, based on a first control signal according to the direction signal, a rotating mechanism of the arm so that the arm performs a first rotation; and control, in response to an end of the first rotation, based on a second control signal, the rotating mechanism so that the arm performs a second rotation which returns the arm toward a position before the first rotation, the position being stored in a memory circuit.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: February 8, 2022
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Shingo Abe, Akihito Takahashi, Takayuki Ishikawa, Mitsuru Sakata
  • Patent number: 11191504
    Abstract: According to one embodiment, an X-ray diagnosis apparatus includes an X-ray generator, an X-ray diaphragm, an X-ray detector, an image capturing unit, a blood vessel running information acquiring unit, a device position specifying unit, and a diaphragm controller. The X-ray generator emits X-rays. The X-ray diaphragm restricts a region to be irradiated with X-rays emitted from the X-ray generator. The X-ray detector detects X-rays emitted from the X-ray generator. The image capturing unit acquires an X-ray image based on a detection result obtained by the X-ray detector. The blood vessel running information acquiring unit acquires blood vessel running information. The device position specifying unit specifies the position of a device in the X-ray image. The diaphragm controller controls the X-ray diaphragm based on the blood vessel running information and the position of the device.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: December 7, 2021
    Assignee: Canon Medical Systems Corporation
    Inventors: Kazuo Imagawa, Shingo Abe, Akihito Takahashi
  • Publication number: 20210085271
    Abstract: A medical-image processing apparatus and a medical-image diagnostic apparatus according to an embodiment include an acquisition unit, a generation unit, an identification unit, and a display control unit. The acquisition unit acquires a medical image containing a blood vessel collected by the medical-image diagnostic apparatus. The generation unit generates an anatomical structure model based on the medical image acquired by the acquisition unit. The identification unit identifies a position, on the medical image, of an index relating to blood flow analyzed through fluid analysis using the anatomical structure model. The display control unit displays the position of the index on the medical image, and also displays the index associated with the position of the index on the medical image.
    Type: Application
    Filed: December 8, 2020
    Publication date: March 25, 2021
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Satoshi WAKAI, Takuya SAKAGUCHI, Akihito TAKAHASHI
  • Patent number: 10888290
    Abstract: A medical-image processing apparatus and a medical-image diagnostic apparatus according to an embodiment include an acquisition unit, a generation unit, an identification unit, and a display control unit. The acquisition unit acquires a medical image containing a blood vessel collected by the medical-image diagnostic apparatus. The generation unit generates an anatomical structure model based on the medical image acquired by the acquisition unit. The identification unit identifies a position, on the medical image, of an index relating to blood flow analyzed through fluid analysis using the anatomical structure model. The display control unit displays the position of the index on the medical image, and also displays the index associated with the position of the index on the medical image.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: January 12, 2021
    Assignee: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Satoshi Wakai, Takuya Sakaguchi, Akihito Takahashi
  • Publication number: 20200334815
    Abstract: According to one embodiment, a medical image processing apparatus includes processing circuitry. The processing circuitry specifies, before position alignment between a first X-ray image and a second X-ray image which is acquired with a device inserted, a device area candidate in the second X-ray image as a candidate of an area where the device appears. The processing circuitry performs the position alignment using first processing of removing the specified device area candidate or second processing of reducing a contribution of the specified device area candidate.
    Type: Application
    Filed: April 21, 2020
    Publication date: October 22, 2020
    Applicant: CANON MEDICAL SYSTEMS CORPORATION
    Inventors: Hirona OIKAWA, Shingo ABE, Kunio SHIRAISHI, Toshiya WAKU, Shumpei OHASHI, Akihito TAKAHASHI, Saki HASHIMOTO, Jumpei OGASAWARA
  • Publication number: 20200037972
    Abstract: According to one embodiment, an X-ray diagnosis apparatus includes an X-ray generator, an X-ray diaphragm, an X-ray detector, an image capturing unit, a blood vessel running information acquiring unit, a device position specifying unit, and a diaphragm controller. The X-ray generator emits X-rays. The X-ray diaphragm restricts a region to be irradiated with X-rays emitted from the X-ray generator. The X-ray detector detects X-rays emitted from the X-ray generator. The image capturing unit acquires an X-ray image based on a detection result obtained by the X-ray detector. The blood vessel running information acquiring unit acquires blood vessel running information. The device position specifying unit specifies the position of a device in the X-ray image. The diaphragm controller controls the X-ray diaphragm based on the blood vessel running information and the position of the device.
    Type: Application
    Filed: July 30, 2019
    Publication date: February 6, 2020
    Applicant: Canon Medical Systems Corporation
    Inventors: KAZUO IMAGAWA, Shingo Abe, Akihito Takahashi