Patents by Inventor Akio Tetsuka
Akio Tetsuka 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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Publication number: 20240074716Abstract: According to one embodiment, an X-ray diagnosis apparatus includes a table, an imaging unit, and processing circuitry. The table includes a table top on which a subject is placed. The imaging unit includes an X-ray tube which emits X-rays to the subject and an X-ray detector which detects the X-rays. The processing circuitry detects contact between an object and at least one of the imaging unit and the table. The processing circuitry executes control to display contact position information relating to a position in contact with the object based on a detection result.Type: ApplicationFiled: September 6, 2023Publication date: March 7, 2024Applicant: Canon Medical Systems CorporationInventors: Keisuke SUGAWARA, Saki HASHIMOTO, Masanori MATSUMOTO, Yoshiyuki SATO, Hisayuki UEHARA, Shingo ABE, Akio TETSUKA
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Publication number: 20240032882Abstract: According to one embodiment, an X-ray diagnostic apparatus includes processing circuitry. The processing circuitry sets a plurality of ROIs in a first X-ray image. The processing circuitry calculates a statistical value for each ROI based on a plurality of values of pixels included in each ROI, thereby obtaining a plurality of statistical values. The processing circuitry acquires a threshold value for each statistical value. The processing circuitry determines a set of X-ray conditions relating to capturing of a second X-ray image subsequent to the first X-ray image based on the statistical value and the threshold value relating to each ROI.Type: ApplicationFiled: July 24, 2023Publication date: February 1, 2024Applicant: Canon Medical Systems CorporationInventors: Masanori MATSUMOTO, Saki HASHIMOTO, Keisuke SUGAWARA, Shingo ABE, Akio TETSUKA, Yusuke KANNO, Yoshiyuki SATO, Hisayuki UEHARA
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Publication number: 20230165548Abstract: According to an embodiment, there is provided that processing circuitry configured to determine a first radiation timing at which a subject is irradiated with an X-ray, based on information on motion of an object in X-ray image data, the information on motion being calculated by the X-ray image data, the X-ray image data being associated with an electrocardiographic waveform of the subject, and repeatedly irradiate the subject with an X-ray at the first radiation timing per cycle of the electrocardiographic waveform of the subject.Type: ApplicationFiled: November 30, 2022Publication date: June 1, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Masanori MATSUMOTO, Hirona OIKAWA, Shingo ABE, Akio TETSUKA, Yoshiyuki SATO, Yusuke KANNO, Hisayuki UEHARA
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Publication number: 20230148985Abstract: An X-ray diagnosis apparatus according to an embodiment includes a processing circuitry. The processing circuitry is configured: to determine a region corresponding to a target object in an X-ray image, on the basis of the X-ray image; to calculate a statistical value related to the region, on the basis of a plurality of pixel values included in the region; and to set an X-ray condition related to generating X-rays, on the basis of the statistical value.Type: ApplicationFiled: November 11, 2022Publication date: May 18, 2023Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Yusuke KANNO, Yoshiyasu HAYASHI, Akio TETSUKA, Tomikazu ONO
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Publication number: 20220142596Abstract: An operation device comprises a detector configured to detect an operation on a virtual switch by an operator to operate an X-ray irradiation in an X-ray diagnosis apparatus, wherein the virtual switch is virtually set at a position settled relatively with respect to the operator and output circuitry configured to output a detection result of the operation detected by the detector to the X-ray diagnosis apparatus to be operated. This device eliminates the need for looking away from a display monitor every time the operator operates the X-ray diagnosis apparatus.Type: ApplicationFiled: November 10, 2021Publication date: May 12, 2022Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Hajime YOSHIDA, Keisuke SUGAWARA, Hiroshi YOSHIDA, Yusuke NARABU, Akio TETSUKA, Shingo ABE
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Patent number: 11272605Abstract: An X-ray diagnostic apparatus according to an embodiment includes: an X-ray tube including a target configured to generate X-rays in response to emission of electrons thereto, a plurality of filaments configured to emit electrons into substantially the same position on the target, and a grid used in common among the plurality of filaments; intermediate potential setting circuitry configured to set intermediate potential in a position between the plurality of filaments and the target by using the grid; and filament potential controlling circuitry configured to change one or more filaments selected from among the plurality of filaments to emit the electrons to the target, by controlling potential levels of the plurality of filaments with respect to the intermediate potential for each filament, in conjunction with switching of X-ray tube voltage.Type: GrantFiled: October 15, 2019Date of Patent: March 8, 2022Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Akio Tetsuka, Yuki Totsuka
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Patent number: 10820870Abstract: According to one embodiment, an X-ray diagnostic apparatus includes an X-ray tube, a driver, a supporter, and processing circuitry. The X-ray tube including a rotating anode. The driver rotates the rotating anode. The supporter supports the X-ray tube in an inclinable manner. The processing circuitry acquires information indicating an attitude of the supporter and controls the driver based on information indicating the acquired attitude.Type: GrantFiled: September 27, 2018Date of Patent: November 3, 2020Assignee: Canon Medical Systems CorporationInventors: Daisuke Sato, Katsuo Takahashi, Kansei Takahashi, Hiroyoshi Kobayashi, Akio Tetsuka, Akira Mochizuki, Katsunori Kojima, Yuki Totsuka, Masaharu Soya, Ikuo Hayashida
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Patent number: 10687771Abstract: An X-ray diagnostic apparatus according to one embodiment comprises an X-ray tube, an X-ray detector, a holding mechanism, position specifying circuitry and control circuitry. The X-ray detector detects the X-ray which has been generated by the X-ray tube and has passed through an object placed on a top of a bed movable in an examination room. The holding mechanism holds the X-ray tube and the X-ray detector, and movable in the examination room. The position specifying circuitry specifies a position of the holding mechanism in the examination room and a position of the bed in the examination room. The control circuitry controls the holding mechanism in order to change a position and angle of the holding mechanism based on the position of the holding mechanism and the position of the bed.Type: GrantFiled: November 27, 2015Date of Patent: June 23, 2020Assignee: Canon Medical Systems CorporationInventors: Hisayuki Uehara, Takeo Matsuzaki, Akio Tetsuka, Jun Sakakibara, Katsuie Ikawa, Masashi Hirasawa, Keisuke Sugawara
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Publication number: 20200146135Abstract: An X-ray diagnostic apparatus according to an embodiment includes: an X-ray tube including a target configured to generate X-rays in response to emission of electrons thereto, a plurality of filaments configured to emit electrons into substantially the same position on the target, and a grid used in common among the plurality of filaments; intermediate potential setting circuitry configured to set intermediate potential in a position between the plurality of filaments and the target by using the grid; and filament potential controlling circuitry configured to change one or more filaments selected from among the plurality of filaments to emit the electrons to the target, by controlling potential levels of the plurality of filaments with respect to the intermediate potential for each filament, in conjunction with switching of X-ray tube voltage.Type: ApplicationFiled: October 15, 2019Publication date: May 7, 2020Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Akio Tetsuka, Yuki Totsuka
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Patent number: 10638998Abstract: An X-ray diagnostic apparatus comprises an X-ray tube and processing circuitry. The X-ray tube includes a rotary anode. The processing circuitry is configured to derive an acquiring condition from a fluoroscopic image, and start to increase, in accordance with the acquiring condition derived, a rotating speed of the anode from a low rotating speed to a high rotating speed before the X-ray tube finishes emitting an X-ray to acquire the fluoroscopic image.Type: GrantFiled: June 7, 2017Date of Patent: May 5, 2020Assignee: Canon Medical Systems CorporationInventors: Yuki Totsuka, Masaharu Soya, Katsuo Takahashi, Kansei Takahashi, Akira Mochiduki, Katsunori Kojima, Daisuke Sato, Hisayuki Uehara, Hiroyoshi Kobayashi, Akio Tetsuka
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Patent number: 10412818Abstract: An X-ray diagnostic apparatus according to embodiments includes an X-ray tube assembly and a grid potential control circuitry. The X-ray tube assembly includes a filament that emits electrons, a target that generates X-rays by receiving the electrons, and a grid having a potential for adjusting a potential gradient around the filament. The grid potential control circuitry switches the potential of the grid to a potential where the potential gradient around the filament becomes greater than a potential gradient generated by a potential of the filament and a potential of the target.Type: GrantFiled: October 13, 2016Date of Patent: September 10, 2019Assignee: Canon Medical Systems CorporationInventors: Yuki Totsuka, Akio Tetsuka, Masaharu Soya
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Publication number: 20190099142Abstract: According to one embodiment, an X-ray diagnostic apparatus includes an X-ray tube, a driver, a supporter, and processing circuitry. The X-ray tube including a rotating anode. The driver rotates the rotating anode. The supporter supports the X-ray tube in an inclinable manner. The processing circuitry acquires information indicating an attitude of the supporter and controls the driver based on information indicating the acquired attitude.Type: ApplicationFiled: September 27, 2018Publication date: April 4, 2019Applicant: Canon Medical Systems CorporationInventors: Daisuke SATO, Katsuo Takahashi, Kansei Takahashi, Hiroyoshi Kobayashi, Akio Tetsuka, Akira Mochizuki, Katsunori Kojima, Yuki Totsuka, Masaharu Soya, Ikuo Hayashida
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Publication number: 20170352518Abstract: An X-ray diagnostic apparatus comprises an X-ray tube and processing circuitry. The X-ray tube includes a rotary anode. The processing circuitry is configured to derive an acquiring condition from a fluoroscopic image, and start to increase, in accordance with the acquiring condition derived, a rotating speed of the anode from a low rotating speed to a high rotating speed before the X-ray tube finishes emitting an X-ray to acquire the fluoroscopic image.Type: ApplicationFiled: June 7, 2017Publication date: December 7, 2017Applicant: Toshiba Medical Systems CorporationInventors: Yuki TOTSUKA, Masaharu SOYA, Katsuo TAKAHASHI, Kansei TAKAHASHI, Akira MOCHIDUKl, Katsunori KOJIMA, Daisuke SATO, Hisayuki UEHARA, Hiroyoshi KOBAYASHI, Akio TETSUKA
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Publication number: 20170118830Abstract: An X-ray diagnostic apparatus according to embodiments includes an X-ray tube assembly and a grid potential control circuitry. The X-ray tube assembly includes a filament that emits electrons, a target that generates X-rays by receiving the electrons, and a grid having a potential for adjusting a potential gradient around the filament. The grid potential control circuitry switches the potential of the grid to a potential where the potential gradient around the filament becomes greater than a potential gradient generated by a potential of the filament and a potential of the target.Type: ApplicationFiled: October 13, 2016Publication date: April 27, 2017Applicant: Toshiba Medical Systems CorporationInventors: Yuki TOTSUKA, Akio Tetsuka, Masaharu Soya
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Publication number: 20160074000Abstract: An X-ray diagnostic apparatus according to one embodiment comprises an X-ray tube, an X-ray detector, a holding mechanism, position specifying circuitry and control circuitry. The X-ray detector detects the X-ray which has been generated by the X-ray tube and has passed through an object placed on a top of a bed movable in an examination room. The holding mechanism holds the X-ray tube and the X-ray detector, and movable in the examination room. The position specifying circuitry specifies a position of the holding mechanism in the examination room and a position of the bed in the examination room. The control circuitry controls the holding mechanism in order to change a position and angle of the holding mechanism based on the position of the holding mechanism and the position of the bed.Type: ApplicationFiled: November 27, 2015Publication date: March 17, 2016Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems CorporationInventors: Hisayuki UEHARA, Takeo MATSUZAKI, Akio TETSUKA, Jun SAKAKIBARA, Katsuie IKAWA, Masashi HIRASAWA, Keisuke SUGAWARA
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Publication number: 20100324413Abstract: In one embodiment, an X-ray diagnostic system is provided. The system is provided with an X-ray irradiation section, an X-ray detection section, an image data generation unit, a position detecting unit and a control section. The X-ray irradiation section radiates an X-ray to an object to be diagnosed. The X-ray detection section detects the X-ray radiated from the X-ray irradiation section and transmitted through the object so as to generate X-ray transmission data. The image data generation unit generates image data based on the X-ray transmission data. The position detecting unit detects position of a catheter inserted into the object. The control section switches X-ray irradiation conditions to be irradiated from the X-ray irradiation section, based on positional data detected by the position detecting unit and electrocardiogram data of the object.Type: ApplicationFiled: June 9, 2010Publication date: December 23, 2010Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Akio Tetsuka, Shingo Abe, Kunio Shiraishi
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Patent number: 7029177Abstract: An X-ray diagnosis apparatus for obtaining an X-ray image comprises an X-ray radiator, a detector, a first mechanism, a second mechanism, a controller, and an image processor. The X-ray radiator is configured to radiate an X-ray to a specimen. The detector is configured to detect an X-ray data resulting from the X-ray. The first mechanism is coupled to the detector and is configured to shift the detector along a detecting plane of the detector. The second mechanism is coupled to the X-ray radiator and is configured to change a radiation direction of the X-ray against the detector. The controller is configured to control the second mechanism in accordance with the shift of the detector. The image processor is coupled to the detector and is configured to prepare a fluoroscopic image data as the X-ray image based on the X-ray data. The image processor also corrects a deformation of the fluoroscopic image data.Type: GrantFiled: September 16, 2003Date of Patent: April 18, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Izumi Watanabe, Makoto Kaneko, Hisayuki Uehara, Akio Tetsuka, Kazutoyo Hirayama, Akiko Yamahana
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Publication number: 20040131154Abstract: An X-ray diagnosis apparatus for obtaining an X-ray image comprises an X-ray radiator, a detector, a first mechanism, a second mechanism, a controller, and an image processor. The X-ray radiator is configured to radiate an X-ray to a specimen. The detector is configured to detect an X-ray data resulting from the X-ray. The first mechanism is coupled to the detector and is configured to shift the detector along a detecting plane of the detector. The second mechanism is coupled to the X-ray radiator and is configured to change a radiation direction of the X-ray against the detector. The controller is configured to control the second mechanism in accordance with the shift of the detector. The image processor is coupled to the detector and is configured to prepare a fluoroscopic image data as the X-ray image based on the X-ray data. The image processor also corrects a deformation of the fluoroscopic image data.Type: ApplicationFiled: September 16, 2003Publication date: July 8, 2004Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Izumi Watanabe, Makoto Kaneko, Hisayuki Uehara, Akio Tetsuka, Kazutoyo Hirayama, Akiko Yamahana
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Publication number: 20030160682Abstract: A medical communication system for exchanging information between a plurality of rooms, comprising transmission means for transmitting information inputted from within one of the rooms, to the other room, and display means for displaying the information received in the other room, as visual information.Type: ApplicationFiled: January 9, 2003Publication date: August 28, 2003Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Naoki Yamada, Akio Tetsuka