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).
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Patent number: 11974340Abstract: 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: GrantFiled: May 9, 2018Date of Patent: April 30, 2024Assignee: NTT DOCOMO, INC.Inventors: Tooru Uchino, Hideaki Takahashi, Akihito Hanaki
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Patent number: 11971327Abstract: 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: GrantFiled: June 2, 2020Date of Patent: April 30, 2024Assignee: NISSAN MOTOR CO., LTD.Inventors: Toshihiro Yamagata, Akihito Takahashi, Shimpei Yamashita
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Patent number: 11945230Abstract: 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: GrantFiled: May 31, 2023Date of Patent: April 2, 2024Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Masahiro Hayashi, Akinari Ishibe, Yuma Tanabe, Masatake Sato, Akihito Kobayashi, Hiroaki Takahashi
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Publication number: 20230360253Abstract: 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: ApplicationFiled: April 25, 2023Publication date: November 9, 2023Applicant: Canon Medical Systems CorporationInventors: Akihito TAKAHASHI, Yoshiyasu HAYASHI, Junichi YAMAGISHI, Yosuke KAYUKAWA, Hag Chang LEE, Hisayasu YUMIZA
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Publication number: 20230351647Abstract: 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: ApplicationFiled: March 28, 2023Publication date: November 2, 2023Applicant: Canon Medical Systems CorporationInventors: Jumpei OGASAWARA, Kunio SHIRAISHI, Hajime YOSHIDA, Akihito TAKAHASHI, Yasuto HAYATSU
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Publication number: 20230165546Abstract: 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: ApplicationFiled: November 21, 2022Publication date: June 1, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Akihito TAKAHASHI, Kenji MIZUTANI, Mika TAKAYA, Takahiro YAMAGUCHI
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Publication number: 20230157657Abstract: 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: ApplicationFiled: November 23, 2022Publication date: May 25, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Akihito TAKAHASHI, Haruki IWAI, Tomoki FUJITO, Yuki TOTSUKA
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Patent number: 11624676Abstract: 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: GrantFiled: June 2, 2020Date of Patent: April 11, 2023Assignee: NISSAN MOTOR CO., LTD.Inventors: Toshihiro Yamagata, Akihito Takahashi, Shimpei Yamashita
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Publication number: 20220351380Abstract: 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: ApplicationFiled: July 13, 2022Publication date: November 3, 2022Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Akihito TAKAHASHI, Satoshi WAKAI, Takuya SAKAGUCHI
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Publication number: 20220291074Abstract: 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: ApplicationFiled: June 2, 2020Publication date: September 15, 2022Applicant: NISSAN MOTOR CO., LTD.Inventors: Toshihiro YAMAGATA, Akihito TAKAHASHI, Shimpei YAMASHITA
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Publication number: 20220276113Abstract: 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: ApplicationFiled: June 2, 2020Publication date: September 1, 2022Applicant: NISSAN MOTOR CO., LTD.Inventors: Toshihiro YAMAGATA, Akihito TAKAHASHI, Shimpei YAMASHITA
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Patent number: 11423532Abstract: 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: GrantFiled: October 17, 2018Date of Patent: August 23, 2022Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Akihito Takahashi, Satoshi Wakai, Takuya Sakaguchi
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Patent number: 11364002Abstract: 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: GrantFiled: December 8, 2020Date of Patent: June 21, 2022Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Satoshi Wakai, Takuya Sakaguchi, Akihito Takahashi
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Patent number: 11334998Abstract: 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: GrantFiled: April 21, 2020Date of Patent: May 17, 2022Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Hirona Oikawa, Shingo Abe, Kunio Shiraishi, Toshiya Waku, Shumpei Ohashi, Akihito Takahashi, Saki Hashimoto, Jumpei Ogasawara
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Patent number: 11241206Abstract: 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: GrantFiled: March 19, 2018Date of Patent: February 8, 2022Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Shingo Abe, Akihito Takahashi, Takayuki Ishikawa, Mitsuru Sakata
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Patent number: 11191504Abstract: 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: GrantFiled: July 30, 2019Date of Patent: December 7, 2021Assignee: Canon Medical Systems CorporationInventors: Kazuo Imagawa, Shingo Abe, Akihito Takahashi
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Publication number: 20210085271Abstract: 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: ApplicationFiled: December 8, 2020Publication date: March 25, 2021Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Satoshi WAKAI, Takuya SAKAGUCHI, Akihito TAKAHASHI
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Patent number: 10888290Abstract: 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: GrantFiled: September 18, 2017Date of Patent: January 12, 2021Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Satoshi Wakai, Takuya Sakaguchi, Akihito Takahashi
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Publication number: 20200334815Abstract: 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: ApplicationFiled: April 21, 2020Publication date: October 22, 2020Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Hirona OIKAWA, Shingo ABE, Kunio SHIRAISHI, Toshiya WAKU, Shumpei OHASHI, Akihito TAKAHASHI, Saki HASHIMOTO, Jumpei OGASAWARA
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Publication number: 20200037972Abstract: 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: ApplicationFiled: July 30, 2019Publication date: February 6, 2020Applicant: Canon Medical Systems CorporationInventors: KAZUO IMAGAWA, Shingo Abe, Akihito Takahashi