Patents by Inventor Ryuji Zaiki
Ryuji Zaiki 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: 10285660Abstract: According to one embodiment, an X-ray diagnostic apparatus includes a support frame, an input button, and processing circuitry. The support frame supports an X-ray detector which detects X-rays. The input button provides on at least one of an exterior of the support frame and an exterior of the X-ray detector and inputs an instruction to implement an assigned moving operation pattern of a plurality of moving operation patterns concerning movement of at least one of the support frame, the X-ray detector, and a table top. The processing circuitry assigns the input button with an instruction to implement a moving operation pattern, of the plurality of moving operation patterns, which is selected by an operator.Type: GrantFiled: January 29, 2016Date of Patent: May 14, 2019Assignee: Toshiba Medical Systems CorporationInventors: Ryuji Zaiki, Hisayuki Uehara, Masashi Hirasawa, Kazuhiro Taniyama, Kazuo Imagawa, Katsuie Ikawa
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Patent number: 10204410Abstract: A medical image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to obtain a chronological transition of signal intensities for each of the pixels in a plurality of X-ray images chronologically acquired by using a contrast media. The processing circuitry is configured to correct the chronological transition of the signal intensities on the basis of a level of similarity between at least two mutually-different signal intensities within the chronological transition of the signal intensities.Type: GrantFiled: October 13, 2016Date of Patent: February 12, 2019Assignee: Toshiba Medical Systems CorporationInventors: Ryuji Zaiki, Takuya Sakaguchi, Tadaharu Kobayashi
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Patent number: 10016175Abstract: An X-ray diagnostic apparatus in embodiments includes a calculating module, a generator, and a changing module. The calculating module calculates feature quantity concerning a flow of a contrast material for each pixel in a predetermined section based on temporal transition in signal intensity of the contrast material in a predetermined section of a plurality of X-ray images radiographed with time by using the contrast material. The generator generates a first color image in which color information corresponding to the feature quantity concerning the flow of the contrast material in a first section as the predetermined section is reflected in each pixel. The changing module changes the predetermined section to a second section that is within the first section.Type: GrantFiled: March 30, 2015Date of Patent: July 10, 2018Assignee: Toshiba Medical Systems CorporationInventors: Takuya Sakaguchi, Hisato Takemoto, Yuichiro Watanabe, Ryuji Zaiki, Ryoichi Nagae
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Patent number: 9986962Abstract: According to an embodiment, a medical image display apparatus is accessible to an external device that stores data of a plurality of X-ray images with different imaging angles, or includes a storage unit that stores the data of the plurality of X-ray images. The medical image display apparatus includes a display, a distance specifying unit, an image selector and a display controller. The distance specifying unit specifies a distance of a user to the display. The image selector selects, from the plurality of X-ray images, two X-ray images with an angular difference determined based on the distance of the user. The display controller displays the selected two X-ray images on the display for stereopsis by the user.Type: GrantFiled: April 21, 2015Date of Patent: June 5, 2018Assignee: Toshiba Medical Systems CorporationInventors: Kazuo Imagawa, Takuya Sakaguchi, Ryuji Zaiki
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Patent number: 9968320Abstract: According to one embodiment, an X-ray diagnostic apparatus includes an X-ray tube that generates X-rays, an X-ray detector that detects X-rays generated from the X-ray tube and transmitted through an object, a supporting mechanism supports the X-ray tube and the X-ray detector in directions to face each other, a display displays an X-ray image concerning the object based on an output from the X-ray detector, position specifying circuitry specifies a position of the face of a user who is visually recognizing the display, and moving circuitry moves the supporting mechanism to an imaging position corresponding to the specified position of the face of the user.Type: GrantFiled: August 11, 2015Date of Patent: May 15, 2018Assignee: Toshiba Medical Systems CorporationInventor: Ryuji Zaiki
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Patent number: 9955936Abstract: According to one embodiment, An X-ray diagnostic apparatus includes an X-ray generator that generates X rays, an X-ray detector that detects the X rays generated by the X-ray generator and having passed through a subject, an X-ray restrictor that restricts an irradiation range on a detection surface of the X-ray detector of the X rays generated by the X-ray generator, a signal input unit that inputs a biomedical signal related to the subject, a signal detector that detects a biomedical change from the biomedical signal and also outputs an extension switching signal, and an X-ray restrictor controller that controls the X-ray restrictor such that the irradiation range of the X rays is extended in response to output of the extension switching signal.Type: GrantFiled: April 3, 2015Date of Patent: May 1, 2018Assignee: Toshiba Medical Systems CorporationInventors: Yuki Totsuka, Masaharu Soya, Ryuji Zaiki, Masahiro Ozawa
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Patent number: 9895118Abstract: An X-ray diagnostic apparatus according to one embodiment comprises: an X-ray tube, an X-ray detector, a supporting arm configured to support the X-ray tube and the X-ray detector in directions to face each other, a moving mechanism configured to move the supporting arm around a plurality of rotation axes and processing circuitry configured to set an imaging sequence concerning a plurality of left-eye imaging positions with respect to the object and a plurality of right-eye imaging positions respectively corresponding to the plurality of left-eye imaging positions and configured to control the moving mechanism to move the supporting arm in accordance with the set imaging sequence. The imaging sequence includes a sequence of continuously performing imaging at at least two of the plurality of left-eye imaging positions or a sequence of continuously performing imaging at at least two of the plurality of right-eye imaging positions.Type: GrantFiled: August 11, 2015Date of Patent: February 20, 2018Assignee: Toshiba Medical Systems CorporationInventor: Ryuji Zaiki
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Patent number: 9888898Abstract: The X-ray diagnostic apparatus includes an X-ray emitting device, an X-ray detection device, a fluoroscopic image generating unit, a calcified region detection unit and a display control unit. The fluoroscopic image generating unit generates a plurality of frames of fluoroscopic images of an object on a basis of detected X-rays in sequence. The calcified region detection unit detects a calcified region on each of the fluoroscopic images in sequence. The display control unit superimposes a calcified region image on a position of the calcified region on each of the fluoroscopic images in sequence, the calcified region image including a calcified region on a pre-acquired CT image or MR image of the object, and displays resulting images on a display device in sequence.Type: GrantFiled: March 17, 2015Date of Patent: February 13, 2018Assignee: Toshiba Medical Systems CorporationInventors: Kazuo Imagawa, Takuya Sakaguchi, Ryuji Zaiki
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Patent number: 9875539Abstract: A medical image processing apparatus includes, an unit (12) extracting a blood vessel wall region from the image in a range including an aneurysm in an object, an unit (13) calculating the blood vessel diameter change rates of the neck portions of the aneurysm, blood vessel curvature, and blood vessel flattening ratio at each of discrete points on a blood vessel region based on the extracted blood vessel region, an unit (14) extracting, from discrete points, feature points at each of which at least one of a blood vessel diameter change rate, blood vessel curvature, and blood vessel flattening ratio exceeds a corresponding one of thresholds and decide a range for the indwelling of a stent graft in accordance with the extracted feature points, and a display unit (19) superimposing and display unrecommended ranges on a stored image.Type: GrantFiled: September 6, 2016Date of Patent: January 23, 2018Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Kazuo Imagawa, Ryuji Zaiki, Takayuki Ishikawa, Masaki Kobayashi
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Patent number: 9801598Abstract: According to one embodiment, an X-ray diagnostic apparatus includes a first arm, a second arm, an imaging system and a slide mechanism. The first arm rotates by a first rotating shaft and slides along with a first arc-like slide axis relatively to the first rotating shaft. The second arm rotates by a second rotating shaft fixed to the first arm and slides along with a second arc-like slide axis relatively to the second rotating shaft. The imaging system includes an X-ray generating part and an X-ray detector. The X-ray generating part and the X-ray detector are attached to the second arm. The slide mechanism slides the first arm along with the first slide axis. The slide mechanism is arranged at a position having an offset from the first rotating shaft.Type: GrantFiled: December 2, 2014Date of Patent: October 31, 2017Assignee: Toshiba Medical Systems CorporationInventors: Ryuji Zaiki, Satoshi Yamashita
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Publication number: 20170103526Abstract: A medical image processing apparatus according to an embodiment includes processing circuitry. The processing circuitry is configured to obtain a chronological transition of signal intensities for each of the pixels in a plurality of X-ray images chronologically acquired by using a contrast media. The processing circuitry is configured to correct the chronological transition of the signal intensities on the basis of a level of similarity between at least two mutually-different signal intensities within the chronological transition of the signal intensities.Type: ApplicationFiled: October 13, 2016Publication date: April 13, 2017Applicant: TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Ryuji ZAIKI, Takuya Sakaguchi, Tadaharu Kobayashi
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Patent number: 9532758Abstract: An X-ray diagnostic apparatus according to an embodiment includes a processing circuitry. The processing circuitry configured to acquire blood flow state information indicating a blood flow state in a blood vessel of a subject, and control at least one of an injection start, an injection speed, and an injection amount of injection of a contrast media into the subject by an injector based on the blood flow state information acquired.Type: GrantFiled: May 26, 2015Date of Patent: January 3, 2017Assignee: Toshiba Medical Systems CorporationInventor: Ryuji Zaiki
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Publication number: 20160371837Abstract: A medical image processing apparatus includes, an unit (12) extracting a blood vessel wall region from the image in a range including an aneurysm in an object, an unit (13) calculating the blood vessel diameter change rates of the neck portions of the aneurysm, blood vessel curvature, and blood vessel flattening ratio at each of discrete points on a blood vessel region based on the extracted blood vessel region, an unit (14) extracting, from discrete points, feature points at each of which at least one of a blood vessel diameter change rate, blood vessel curvature, and blood vessel flattening ratio exceeds a corresponding one of thresholds and decide a range for the indwelling of a stent graft in accordance with the extracted feature points, and a display unit (19) superimposing and display unrecommended ranges on a stored image.Type: ApplicationFiled: September 6, 2016Publication date: December 22, 2016Applicant: Toshiba Medical Systems CorporationInventors: Kazuo IMAGAWA, Ryuji ZAIKI, Takayuki ISHIKAWA, Masaki KOBAYASHI
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Patent number: 9462986Abstract: A medical image processing apparatus includes, an unit (12) extracting a blood vessel wall region from the image in a range including an aneurysm in an object, an unit (13) calculating the blood vessel diameter change rates of the neck portions of the aneurysm, blood vessel curvature, and blood vessel flattening ratio at each of discrete points on a blood vessel region based on the extracted blood vessel region, an unit (14) extracting, from discrete points, feature points at each of which at least one of a blood vessel diameter change rate, blood vessel curvature, and blood vessel flattening ratio exceeds a corresponding one of thresholds and decide a range for the indwelling of a stent graft in accordance with the extracted feature points, and a display unit (19) superimposing and display unrecommended ranges on a stored image.Type: GrantFiled: August 8, 2014Date of Patent: October 11, 2016Assignee: Toshiba Medical Systems CorporationInventors: Kazuo Imagawa, Ryuji Zaiki, Takayuki Ishikawa, Masaki Kobayashi
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Publication number: 20160220218Abstract: According to one embodiment, an X-ray diagnostic apparatus includes a support frame, an input button, and processing circuitry. The support frame supports an X-ray detector which detects X-rays. The input button provides on at least one of an exterior of the support frame and an exterior of the X-ray detector and inputs an instruction to implement an assigned moving operation pattern of a plurality of moving operation patterns concerning movement of at least one of the support frame, the X-ray detector, and a table top. The processing circuitry assigns the input button with an instruction to implement a moving operation pattern, of the plurality of moving operation patterns, which is selected by an operator.Type: ApplicationFiled: January 29, 2016Publication date: August 4, 2016Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems CorporationInventors: Ryuji ZAIKI, Hisayuki UEHARA, Masashi HIRASAWA, Kazuhiro TANIYAMA, Kazuo IMAGAWA, Katsuie IKAWA
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Patent number: 9259202Abstract: An X-ray diagnostic apparatus according to an embodiment includes a generating unit and a display controller. The generating unit generates a diagram illustrating the angle information of an arm. The display controller performs display control to visualize, together with the diagram generated by the generating unit, at least one of information showing the status of the arm when the arm is at an angle illustrated in the diagram and information showing the status of a subject to be imaged when the arm is at the angle illustrated in the diagram.Type: GrantFiled: April 9, 2013Date of Patent: February 16, 2016Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Hajime Yoshida, Ryuji Zaiki, Masahiro Ozawa, Yusuke Narabu, Masaki Kobayashi
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Publication number: 20150342546Abstract: An X-ray diagnostic apparatus according to one embodiment comprises: an X-ray tube, an X-ray detector, a supporting arm configured to support the X-ray tube and the X-ray detector in directions to face each other, a moving mechanism configured to move the supporting arm around a plurality of rotation axes and processing circuitry configured to set an imaging sequence concerning a plurality of left-eye imaging positions with respect to the object and a plurality of right-eye imaging positions respectively corresponding to the plurality of left-eye imaging positions and configured to control the moving mechanism to move the supporting arm in accordance with the set imaging sequence. The imaging sequence includes a sequence of continuously performing imaging at at least two of the plurality of left-eye imaging positions or a sequence of continuously performing imaging at at least two of the plurality of right-eye imaging positions.Type: ApplicationFiled: August 11, 2015Publication date: December 3, 2015Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventor: Ryuji ZAIKI
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Publication number: 20150342548Abstract: According to one embodiment, an X-ray diagnostic apparatus includes an X-ray tube that generates X-rays, an X-ray detector that detects X-rays generated from the X-ray tube and transmitted through an object, a supporting mechanism supports the X-ray tube and the X-ray detector in directions to face each other, a display displays an X-ray image concerning the object based on an output from the X-ray detector, position specifying circuitry specifies a position of the face of a user who is visually recognizing the display, and moving circuitry moves the supporting mechanism to an imaging position corresponding to the specified position of the face of the user.Type: ApplicationFiled: August 11, 2015Publication date: December 3, 2015Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventor: Ryuji ZAIKI
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Publication number: 20150289831Abstract: An X-ray diagnostic apparatus in embodiments includes a calculating module, a generator, and a changing module. The calculating module calculates feature quantity concerning a flow of a contrast material for each pixel in a predetermined section based on temporal transition in signal intensity of the contrast material in a predetermined section of a plurality of X-ray images radiographed with time by using the contrast material. The generator generates a first color image in which color information corresponding to the feature quantity concerning the flow of the contrast material in a first section as the predetermined section is reflected in each pixel. The changing module changes the predetermined section to a second section that is within the first section.Type: ApplicationFiled: March 30, 2015Publication date: October 15, 2015Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Takuya SAKAGUCHI, Hisato Takemoto, Yuichiro Watanabe, Ryuji Zaiki, Ryoichi Nagae
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Publication number: 20150272529Abstract: The X-ray diagnostic apparatus includes an X-ray emitting device, an X-ray detection device, a fluoroscopic image generating unit, a calcified region detection unit and a display control unit. The fluoroscopic image generating unit generates a plurality of frames of fluoroscopic images of an object on a basis of detected X-rays in sequence. The calcified region detection unit detects a calcified region on each of the fluoroscopic images in sequence. The display control unit superimposes a calcified region image on a position of the calcified region on each of the fluoroscopic images in sequence, the calcified region image including a calcified region on a pre-acquired CT image or MR image of the object, and displays resulting images on a display device in sequence.Type: ApplicationFiled: March 17, 2015Publication date: October 1, 2015Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Kazuo IMAGAWA, Takuya SAKAGUCHI, Ryuji ZAIKI