Patents by Inventor Teruomi Gunji
Teruomi Gunji 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: 9968318Abstract: An estimating apparatus according to an embodiment includes specifying circuitry, deriving circuitry, and display control circuitry. The specifying circuitry specifies a region of a subject irradiated with X-rays emitted from an X-ray tube of an X-ray CT apparatus on a human body model schematically representing the subject. The deriving circuitry assumes the human body model to be at a position where the subject is arranged in radiography performed by the X-ray CT apparatus and derives an exposure dose of the X-rays on a surface of the region specified by the specifying circuitry on the human body model based on irradiation conditions in the radiography. The display control circuitry displays, on a display, information in which the exposure dose derived by the deriving circuitry is associated with the region on the human body model specified by the specifying circuitry.Type: GrantFiled: July 20, 2015Date of Patent: May 15, 2018Assignee: Toshiba Medical Systems CorporationInventors: Tadaharu Kobayashi, Manabu Tanaka, Teruomi Gunji
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Patent number: 9888899Abstract: An X-ray diagnostic apparatus according to one embodiment includes an X-ray generating device, an X-ray detector, an image generation device, a display device, a portion detection device, and an attenuation device. The X-ray generation device generates X-rays to irradiate an object. The X-ray detector detects X-rays transmitted through the object. The image generation device generates an X-ray image based on the detected X-rays. The display device displays the X-ray image. The portion detection device detects an exposure dose reduction target portion based on the X-ray image. The attenuation device attenuates the X-rays to irradiate a region including the detected portion.Type: GrantFiled: February 12, 2014Date of Patent: February 13, 2018Assignee: Toshiba Medical Systems CorporationInventors: Yoshinori Shimizu, Manabu Tanaka, Teruomi Gunji, Takayuki Ishikawa
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Publication number: 20150320378Abstract: According to one embodiment, an X-ray diagnosis apparatus includes a couch where a subject is placed, a projector, a display controller, and a system controller. The projector includes an X-ray tube having a cathode and an anode that receives electrons from the cathode and irradiates X-rays to the subject, and a first detector configured to detect X-rays that have passed through the subject and are incident on the detection surface. The display controller displays a first image generated based on first detection data from the projector on a display. Having received an enlargement instruction to display an enlarged image of part of the subject illustrated in the first image, the system controller controls the display controller to display a second image generated based on second detection data obtained by detecting X-rays incident on the partial detection surface corresponding to the anode side in the detection surface as the enlarged image.Type: ApplicationFiled: July 23, 2015Publication date: November 12, 2015Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Manabu TANAKA, Yoshinori SHIMIZU, Takayuki ISHIKAWA, Teruomi GUNJI
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Publication number: 20150320381Abstract: An estimating apparatus according to an embodiment includes specifying circuitry, deriving circuitry, and display control circuitry. The specifying circuitry specifies a region of a subject irradiated with X-rays emitted from an X-ray tube of an X-ray CT apparatus on a human body model schematically representing the subject. The deriving circuitry assumes the human body model to be at a position where the subject is arranged in radiography performed by the X-ray CT apparatus and derives an exposure dose of the X-rays on a surface of the region specified by the specifying circuitry on the human body model based on irradiation conditions in the radiography. The display control circuitry displays, on a display, information in which the exposure dose derived by the deriving circuitry is associated with the region on the human body model specified by the specifying circuitry.Type: ApplicationFiled: July 20, 2015Publication date: November 12, 2015Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Tadaharu KOBAYASHI, Manabu Tanaka, Teruomi Gunji
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Patent number: 9161728Abstract: An X-ray diagnosis apparatus of an embodiment includes: an imaging unit that includes an X-ray tube which emits an X-ray to a subject, and an X-ray detector which detects an X-ray passing through the subject; an X-ray beam limiting unit that is disposed between the X-ray tube and the X-ray detector, has a plurality of collimator blades, and can be rotated; an image processing unit that generates a fluoroscopic image of a region of interest set by the X-ray beam limiting unit; and a control unit that individually controls the plurality of collimator blades in such a way that a long side of an opening formed by the plurality of collimator blades goes in a longitudinal direction of a target within the fluoroscopic image.Type: GrantFiled: July 30, 2013Date of Patent: October 20, 2015Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Yuichiro Watanabe, Teruomi Gunji, Manabu Tanaka
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Patent number: 9084581Abstract: An X-ray imaging system that allows X-ray images to be acquired from a desired direction by considering the tilt of a tabletop. The X-ray imaging system includes a support unit that holds an X-ray imaging unit that performs X-ray imaging of a subject. The subject is placed on the tabletop. A memory stores in advance imaging angle information from previous imaging. A tilt detector detects the tilt angle of the tabletop. A calculator calculates a correction angle for correcting the imaging angle information based on the imaging angle information and on the tilt angle. A drive unit moves the support unit to a position based on the imaging angle information and the correction angle.Type: GrantFiled: December 5, 2011Date of Patent: July 21, 2015Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Ryuji Zaiki, Teruomi Gunji, Katsuie Ikawa
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Patent number: 9050060Abstract: An X-ray imaging system that allows X-ray images to be acquired from a desired direction by considering the tilt of a tabletop. The X-ray imaging system includes a support unit that holds an X-ray imaging unit that performs X-ray imaging of a subject. The subject is placed on the tabletop. A memory stores in advance imaging angle information from previous imaging. A tilt detector detects the tilt angle of the tabletop. A calculator calculates a correction angle for correcting the imaging angle information based on the imaging angle information and on the tilt angle. A drive unit moves the support unit to a position based on the imaging angle information and the correction angle.Type: GrantFiled: December 5, 2011Date of Patent: June 9, 2015Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Ryuji Zaiki, Teruomi Gunji, Katsuie Ikawa
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Patent number: 8971601Abstract: A medical image diagnosis device according to an embodiment of the present invention includes: an imaging unit that takes an image of a subject, with an X-ray generation unit which exposes the subject to X-rays and an X-ray detector which detects X-rays that have passed through the subject, being supported on a supporter; a control unit that controls so as to rotate and move the supporter with respect to the subject and take images of the subject from a plurality of viewpoints; a storage unit that stores image data taken from a plurality of the viewpoints; an image processing unit that classifies a plurality of pieces of the image data stored in the storage unit into a plurality of imaging ranges to generate thumbnail images; and a display unit that displays thumbnail images generated by the image processing unit.Type: GrantFiled: October 13, 2011Date of Patent: March 3, 2015Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Ryuji Zaiki, Yoshiyasu Hayashi, Nobuo Kobayashi, Teruomi Gunji
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Publication number: 20140169525Abstract: An X-ray diagnostic apparatus according to one embodiment includes an X-ray generating device, an X-ray detector, an image generation device, a display device, a portion detection device, and an attenuation device. The X-ray generation device generates X-rays to irradiate an object. The X-ray detector detects X-rays transmitted through the object. The image generation device generates an X-ray image based on the detected X-rays. The display device displays the X-ray image. The portion detection device detects an exposure dose reduction target portion based on the X-ray image. The attenuation device attenuates the X-rays to irradiate a region including the detected portion.Type: ApplicationFiled: February 12, 2014Publication date: June 19, 2014Applicants: Toshiba Medical Systems Corporation, KABUSHIKI KAISHA TOSHIBAInventors: Yoshinori Shimizu, Manabu Tanaka, Teruomi Gunji, Takayuki Ishikawa
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Publication number: 20130315370Abstract: An X-ray diagnosis apparatus of an embodiment includes: an imaging unit that includes an X-ray tube which emits an X-ray to a subject, and an X-ray detector which detects an X-ray passing through the subject; an X-ray beam limiting unit that is disposed between the X-ray tube and the X-ray detector, has a plurality of collimator blades, and can be rotated; an image processing unit that generates a fluoroscopic image of a region of interest set by the X-ray beam limiting unit; and a control unit that individually controls the plurality of collimator blades in such a way that a long side of an opening formed by the plurality of collimator blades goes in a longitudinal direction of a target within the fluoroscopic image.Type: ApplicationFiled: July 30, 2013Publication date: November 28, 2013Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha ToshibaInventors: Yuichiro WATANABE, Teruomi GUNJI, Manabu TANAKA
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Publication number: 20130051522Abstract: An X-ray imaging system that allows X-ray images to be acquired from a desired direction by considering the tilt of a tabletop. The X-ray imaging system includes a support unit that holds an X-ray imaging unit that performs X-ray imaging of a subject. The subject is placed on the tabletop. A memory stores in advance imaging angle information from previous imaging. A tilt detector detects the tilt angle of the tabletop. A calculator calculates a correction angle for correcting the imaging angle information based on the imaging angle information and on the tilt angle. A drive unit moves the support unit to a position based on the imaging angle information and the correction angle.Type: ApplicationFiled: December 5, 2011Publication date: February 28, 2013Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha ToshibaInventors: Ryuji Zaiki, Teruomi Gunji, Katsuie Ikawa
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Publication number: 20120162222Abstract: A medical image diagnosis device according to an embodiment of the present invention includes: an imaging unit that takes an image of a subject, with an X-ray generation unit which exposes the subject to X-rays and an X-ray detector which detects X-rays that have passed through the subject, being supported on a supporter; a control unit that controls so as to rotate and move the supporter with respect to the subject and take images of the subject from a plurality of viewpoints; a storage unit that stores image data taken from a plurality of the viewpoints; an image processing unit that classifies a plurality of pieces of the image data stored in the storage unit into a plurality of imaging ranges to generate thumbnail images; and a display unit that displays thumbnail images generated by the image processing unit.Type: ApplicationFiled: October 13, 2011Publication date: June 28, 2012Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha ToshibaInventors: Ryuji Zaiki, Yoshiyasu Hayashi, Nobuo Kobayashi, Teruomi Gunji
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Patent number: 5493597Abstract: A triaxially controlled X-ray diagnostic apparatus comprises a support unit having a first arm, a second arm, and a third arm which are capable of rotation on three mutually orthogonal axes, an X-ray generator mounted on an end of the third arm for irradiating an object under examination with X rays, an image intensifier, mounted on the other end of the third arm so that it is opposed to the X-ray generator, for detecting X rays transmitted through the object to provide an optical image, a TV camera connected to the image intensifier for converting the optical image into a video signal to provide an X-ray image of the object, a display unit for displaying the X-ray image, and rotation correction means for making rotation correction on an X-ray image displayed on the display unit on the basis of angles of rotation of the first, second and third arms when they are rotated from their reference position.Type: GrantFiled: September 8, 1994Date of Patent: February 20, 1996Assignee: Kabushiki Kaisha ToshibaInventors: Atsushi Gotoh, Shuzo Yamamoto, Teruomi Gunji
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Patent number: 5237599Abstract: In order to perform stereoradiography, an X-ray apparatus utilizes an X-ray tube having a pair of X-ray focal points. The X-ray beams are alternately irradiated from the focal points toward an image intensifier through a patient and are limited by an X-ray beam limiting device. The device shapes the irradiated X-ray beams onto a circular detection surface of the image intensifier into a polygon such as octagon. The X-ray irradiation field on the detection surface can be circumscribed to a circular input window (i.e. effective input area), preventing the field from going beyond the detection surface. Thus, direct X-ray leaking over the image intensifier is avoidable.Type: GrantFiled: November 13, 1991Date of Patent: August 17, 1993Assignee: Kabushiki Kaisha ToshibaInventors: Teruomi Gunji, Kazunori Itou
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Patent number: 5224145Abstract: An X-ray beam limiting apparatus, is used for a stereoscopic X-ray tube with two focal points separated from each other by a distance of approximately 35 mm. The X-ray beam limiting apparatus includes pivotable blade means for beam-limiting inner edges of pyramid-shaped X-ray beams emitted from the first and second X-ray focal points, while pivoting around center lines of first and second pivotable shafts positionally shifted with each other; and, first slidable blade means for beam-limiting outer edges of the pyramid-shaped X-ray beams emitted from the first and second X-ray focal points, while sliding on a plane substantially perpendicular to travelling paths of the pyramid-shaped X-ray beams.Type: GrantFiled: May 8, 1992Date of Patent: June 29, 1993Assignee: Kabushiki Kaisha ToshibaInventor: Teruomi Gunji
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Patent number: 5105455Abstract: A protection cover includes a pressure responsive means mounted within the cover along its inner wall surface and which operates responsive to external forces to be exerted upon contact with a neighboring object. The protection cover is provided at a portion where physical contact may occur between any of movable or rotating component devices of an X-ray diagnostic apparatus, such as, an X-ray exposure unit or an image intensifier, and a neighboring object which is in the path of the component devices, such as, a subject or a catheter table. The protection cover may, for example, be provided at a moving end of a component X-ray diagnostic apparatus, such as, the forward end of the image intensifier, or may be mounted, instead of being mounted on a movable component device, on a neighboring object at its side facing to the movable part of the component devices, such as, a stand section of the catheter table, which lies in the path of a moving part of the X-ray radiographing component devices.Type: GrantFiled: October 26, 1990Date of Patent: April 14, 1992Assignee: Kabushiki Kaisha ToshibaInventors: Kunitaka Kato, Sukekiyo Narita, Teruomi Gunji