Patents by Inventor Takeo Matsuzaki
Takeo Matsuzaki 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: 11399786Abstract: According to one embodiment, an X-ray diagnosis apparatus includes an X-ray tube, a diaphragm mechanism, an X-ray detector, image generating circuitry, a display, a first interface, a second interface, and processing circuitry. The processing circuitry controls the diaphragm mechanism and the X-ray tube according to the operation to the first interface so that the X-rays are radiated to a first radiation range, and controls the diaphragm mechanism and the X-ray tube according to the operation to the second interface so that the X-rays are radiated to a second radiation range. The processing circuitry controls the display so that the first display area displays the X-ray images sequentially generated according to radiation of the X-rays, in parallel with the radiation.Type: GrantFiled: April 5, 2019Date of Patent: August 2, 2022Assignee: Canon Medical Systems CorporationInventors: Masanori Matsumoto, Yusuke Narabu, Yoshiyuki Sato, Katsuie Ikawa, Takeo Matsuzaki
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Patent number: 11058386Abstract: According to one embodiment, a medical image diagnosis system includes a plurality of devices, operating circuitry, processing circuitry, and a display. The plurality of devices is to be inserted into a body of an object. The operating circuitry operates at least one of the devices. The processing circuitry obtains a medical image of the object and specifies a device being operated based on movement of the device in the medical image when the device is being operated by the operating circuitry. The display identifiably displays a device to be operated by the operating circuitry based on a result of specification by the processing circuitry.Type: GrantFiled: November 15, 2016Date of Patent: July 13, 2021Assignee: CANON MEDICAL SYSTEMS CORPORATIONInventors: Kazunari Shima, Hajime Yoshida, Kazuhiro Taniyama, Satoru Ohishi, Takeo Matsuzaki
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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: 20190307408Abstract: According to one embodiment, an X-ray diagnosis apparatus includes an X-ray tube, a diaphragm mechanism, an X-ray detector, image generating circuitry, a display, a first interface, a second interface, and processing circuitry. The processing circuitry controls the diaphragm mechanism and the X-ray tube according to the operation to the first interface so that the X-rays are radiated to a first radiation range, and controls the diaphragm mechanism and the X-ray tube according to the operation to the second interface so that the X-rays are radiated to a second radiation range. The processing circuitry controls the display so that the first display area displays the X-ray images sequentially generated according to radiation of the X-rays, in parallel with the radiation.Type: ApplicationFiled: April 5, 2019Publication date: October 10, 2019Applicant: Canon Medical Systems CorporationInventors: Masanori Matsumoto, Yusuke Narabu, Yoshiyuki Sato, Katsuie Ikawa, Takeo Matsuzaki
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Publication number: 20170135662Abstract: According to one embodiment, a medical image diagnosis system includes a plurality of devices, operating circuitry, processing circuitry, and a display. The plurality of devices is to be inserted into a body of an object. The operating circuitry operates at least one of the devices. The processing circuitry obtains a medical image of the object and specifies a device being operated based on movement of the device in the medical image when the device is being operated by the operating circuitry. The display identifiably displays a device to be operated by the operating circuitry based on a result of specification by the processing circuitry.Type: ApplicationFiled: November 15, 2016Publication date: May 18, 2017Applicant: TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Kazunari Shima, Hajime Yoshida, Kazuhiro Taniyama, Satoru Ohishi, Takeo Matsuzaki
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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: 20150374326Abstract: According to embodiment, an X-ray diagnostic apparatus includes a frame holding an X-ray tube and detector such that an axis connecting a X-ray focus and center of the detector rotates around an isocenter, display displaying a first image, operation circuitry inputting a position of a target region on the image, target position calculation circuitry calculating a position of the region on a second image based on an angle between the axes concerning the first and second images, a first distance from the isocenter to a top plate, and second distance from the target position to the plate, and top plate movement amount calculation circuitry calculating a top plate movement amount to display the region at a same position as the target position on the second image based on the calculated position, target position, angle, and first distance.Type: ApplicationFiled: September 2, 2015Publication date: December 31, 2015Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems CorporationInventors: Hayato KASAOKA, Shunichiro NISHIGAKI, Takeo MATSUZAKI, Kayoko NIHEI
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Patent number: 8905636Abstract: According to one embodiment, an end-of-life detection unit in an X-ray diagnostic apparatus is configured to detect an end of life of a detector on the basis of an output value in an X-ray image, and includes: a luminance-level-value computation unit configured to calculate an amount of X-ray irradiation of the detector on the basis of the output value in an area of interest which is set on any one of the X-ray image and the detector; an irradiation-amount accumulation unit configured to calculate an accumulated amount of irradiation in the area of interest by adding the amount of X-ray irradiation calculated by the luminance-level-value computation unit to a previous amount of X-ray irradiation in the area of interest; and an end-of-life judgment unit configured to make a judgment on the end of life of the detector on the basis of the accumulated amount of irradiation.Type: GrantFiled: December 31, 2012Date of Patent: December 9, 2014Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Takeo Matsuzaki, Yasunori Goto, Rie Ochiai
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Publication number: 20130121466Abstract: According to one embodiment, an end-of-life detection unit in an X-ray diagnostic apparatus is configured to detect an end of life of a detector on the basis of an output value in an X-ray image, and includes: a luminance-level-value computation unit configured to calculate an amount of X-ray irradiation of the detector on the basis of the output value in an area of interest which is set on any one of the X-ray image and the detector; an irradiation-amount accumulation unit configured to calculate an accumulated amount of irradiation in the area of interest by adding the amount of X-ray irradiation calculated by the luminance-level-value computation unit to a previous amount of X-ray irradiation in the area of interest; and an end-of-life judgment unit configured to make a judgment on the end of life of the detector on the basis of the accumulated amount of irradiation.Type: ApplicationFiled: December 31, 2012Publication date: May 16, 2013Inventors: Takeo Matsuzaki, Yasunori Goto, Rie Ochiai
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Patent number: 7833670Abstract: The output of a fuel cell stack is kept consumed in an external load through a power converter having a constant-current operating function for keeping an output current of the fuel cell stack at a constant value, until an output voltage of the fuel cell stack reaches an operable lower limit voltage value of the power converter after stopping the supply of oxidant-containing gas to a cathode while maintaining the supply of hydrogen-containing gas to an anode. When the output voltage of the fuel cell stack falls below the operable lower limit voltage value, the output of the fuel cell stack is connected to a short-circuit resistor. Thereafter, a reformer is stopped when the output voltage of the fuel cell stack reaches approximately zero.Type: GrantFiled: June 3, 2005Date of Patent: November 16, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Takeo Matsuzaki, Mitsugu Takahashi, Kazuhiko Kawajiri, Yoshiaki Odai, Kazunori Tsuchino
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Publication number: 20090310847Abstract: A medical image processing apparatus includes an image storage unit which stores the data of a three-dimensional image associated with an object receiving an operation using a lumen insertion device, a lumen detection unit which detects a lumen centerline associated with a specific lumen from the three-dimensional image, a current position specifying unit which specifies the current position of the lumen insertion device based on the insertion distance from a reference position associated with the lumen insertion device and the detected lumen centerline, a cross-sectional image generating unit which creates, from the data of the three-dimensional image, the data of a cross-sectional image associated with a cross-section passing through at least one of the current position and an expected insertion position located ahead of the current position, and a display unit which displays the generated data of the cross-sectional image.Type: ApplicationFiled: August 26, 2009Publication date: December 17, 2009Inventors: Takeo Matsuzaki, Yoshiyasu Hayashi, Takuya Sakaguchi, Masayuki Nishiki, Toshiyuki Sato
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Publication number: 20060188765Abstract: The output of a fuel cell stack is kept consumed in an external load through a power converter having a constant-current operating function for keeping an output current of the fuel cell stack at a constant value, until an output voltage of the fuel cell stack reaches an operable lower limit voltage value of the power converter after stopping the supply of oxidant-containing gas to a cathode while maintaining the supply of hydrogen-containing gas to an anode. When the output voltage of the fuel cell stack falls below the operable lower limit voltage value, the output of the fuel cell stack is connected to a short-circuit resistor. Thereafter, a reformer is stopped when the output voltage of the fuel cell stack reaches approximately zero.Type: ApplicationFiled: June 3, 2005Publication date: August 24, 2006Applicant: Mitsubishi Denki Kabushiki KaishaInventors: Takeo Matsuzaki, Mitsugu Takahashi, Kazuhiko Kawajiri, Yoshiaki Odai, Kazunori Tsuchino