Patents by Inventor Tomoe Sagoh
Tomoe Sagoh 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: 10007012Abstract: According to one embodiment, the X-ray computed tomography apparatus includes an X-ray tube, a rotating frame, a plurality of detector elements, a plurality of DAS elements, switching circuitry, and switching control circuitry. The X-ray tube generates X-rays. The X-ray tube is attached to the rotating frame. The plurality of detector elements detect X-rays. The plurality of DAS elements perform signal processing on output signals from the plurality of detector elements. The switching circuitry is provided between the plurality of detector elements and the plurality of DAS elements. The switching control circuitry controls the switching circuitry to switch the connections between the plurality of detector elements and the plurality of DAS elements for every rotation of the rotating frame at a predetermined angle.Type: GrantFiled: January 13, 2016Date of Patent: June 26, 2018Assignee: Toshiba Medical Systems CorporationInventors: Michito Nakayama, Atsushi Hashimoto, Tomoe Sagoh, Takaya Umehara, Shuya Nambu, Koichi Miyama, Takashi Kanemaru, Keiji Matsuda, Machiko Iso
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Patent number: 9778379Abstract: A photon-counting X-ray computed tomography (CT) apparatus of an embodiment includes photon-counting CT detection circuitry, integral CT detection circuitry, switching circuitry, and a feedback capacitance. Photon-counting CT detection circuitry outputs count values for respective energy bins, based on voltage pulses output from a feedback capacitance with electric charges output from an X-ray detection element configured to detect incident X-rays. Integral CT detection circuitry outputs an integral value, based on the voltage pulses output from the feedback capacitance with the electric charges output from the X-ray detection element. Switching circuitry switches between a case of transmitting the electric charges output from the X-ray detection element to the photon-counting CT detection circuitry and a case of transmitting the electric charges output from the X-ray detection element to the integral CT detection circuitry.Type: GrantFiled: November 16, 2015Date of Patent: October 3, 2017Assignee: Toshiba Medical Systems CorporationInventor: Tomoe Sagoh
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Patent number: 9547090Abstract: An X-ray computed tomography apparatus according to an embodiment includes an X-ray detector that includes a first semiconductor chip including a plurality of elements configured to convert X-rays into an electrical signal, a substrate configured to collect the electrical signal from each element, a second semiconductor chip that is provided between the first semiconductor chip and the substrate and is formed of the same material as that of the first semiconductor chip, a plurality of first electrodes configured to couple each element of the first semiconductor chip to the second semiconductor chip, and a plurality of second electrodes that are configured to couple the second semiconductor chip to the substrate and are larger than the first electrodes. The second semiconductor chip wires the first electrodes and the second electrodes on a one-to-one basis.Type: GrantFiled: July 17, 2015Date of Patent: January 17, 2017Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Keiji Matsuda, Shuya Nambu, Takaya Umehara, Atsushi Hashimoto, Takashi Kanemaru, Akira Nishijima, Koichi Miyama, Tomoe Sagoh
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Publication number: 20160219686Abstract: According to one embodiment, the X-ray computed tomography apparatus includes an X-ray tube, a rotating frame, a plurality of detector elements, a plurality of DAS elements, switching circuitry, and switching control circuitry. The X-ray tube generates X-rays. The X-ray tube is attached to the rotating frame. The plurality of detector elements detect X-rays. The plurality of DAS elements perform signal processing on output signals from the plurality of detector elements. The switching circuitry is provided between the plurality of detector elements and the plurality of DAS elements. The switching control circuitry controls the switching circuitry to switch the connections between the plurality of detector elements and the plurality of DAS elements for every rotation of the rotating frame at a predetermined angle.Type: ApplicationFiled: January 13, 2016Publication date: July 28, 2016Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems CorporationInventors: Michito NAKAYAMA, Atsushi HASHIMOTO, Tomoe SAGOH, Takaya UMEHARA, Shuya NAMBU, Koichi MIYAMA, Takashi KANEMARU, Keiji MATSUDA, Machiko ISO
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Patent number: 9354331Abstract: According to one embodiment, an X-ray computed tomography apparatus includes an X-ray tube, a detector, a first DAS, and a second DAS. The radiation detector includes a plurality of detection elements. Each detection element repeatedly detects X-rays generated by the X-ray tube and transmitted through a subject and repeatedly generates an electrical signal corresponding to the energy of the repeatedly detected X-rays. The first DAS acquires the electrical signal detected by part of the imaging region of each detection element in the integral mode. The second DAS acquires the electrical signal detected by the other part of the imaging region of each detection element in the photon count type mode.Type: GrantFiled: September 13, 2012Date of Patent: May 31, 2016Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems CorporationInventors: Tomoe Sagoh, Michito Nakayama, Keiji Matsuda, Shuya Nambu, Atsushi Hashimoto, Takashi Kanemaru
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Publication number: 20160070005Abstract: A photon-counting X-ray computed tomography (CT) apparatus of an embodiment includes photon-counting CT detection circuitry, integral CT detection circuitry, switching circuitry, and a feedback capacitance. Photon-counting CT detection circuitry outputs count values for respective energy bins, based on voltage pulses output from a feedback capacitance with electric charges output from an X-ray detection element configured to detect incident X-rays. Integral CT detection circuitry outputs an integral value, based on the voltage pulses output from the feedback capacitance with the electric charges output from the X-ray detection element. Switching circuitry switches between a case of transmitting the electric charges output from the X-ray detection element to the photon-counting CT detection circuitry and a case of transmitting the electric charges output from the X-ray detection element to the integral CT detection circuitry.Type: ApplicationFiled: November 16, 2015Publication date: March 10, 2016Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventor: Tomoe SAGOH
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Publication number: 20160033657Abstract: An X-ray computed tomography apparatus according to an embodiment includes an X-ray detector that includes a first semiconductor chip including a plurality of elements configured to convert X-rays into an electrical signal, a substrate configured to collect the electrical signal from each element, a second semiconductor chip that is provided between the first semiconductor chip and the substrate and is formed of the same material as that of the first semiconductor chip, a plurality of first electrodes configured to couple each element of the first semiconductor chip to the second semiconductor chip, and a plurality of second electrodes that are configured to couple the second semiconductor chip to the substrate and are larger than the first electrodes. The second semiconductor chip wires the first electrodes and the second electrodes on a one-to-one basis.Type: ApplicationFiled: July 17, 2015Publication date: February 4, 2016Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Keiji MATSUDA, Shuya NAMBU, Takaya UMEHARA, Atsushi HASHIMOTO, Takashi KANEMARU, Akira NISHIJIMA, Koichi MIYAMA, Tomoe SAGOH
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Patent number: 9014329Abstract: An X-ray CT apparatus includes an X-ray source configured to generate an X-ray; a scintillator configured to convert the X-ray into a fluorescent; a substrate including a plurality of photosensitive elements configured to convert the fluorescent into an electric charge; a temperature sensor formed on the surface of the substrate; a heat element formed on the surface of the substrate; and a controller configured to control a temperature of the photodiode by adjusting an electric current of the heat element.Type: GrantFiled: June 21, 2011Date of Patent: April 21, 2015Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Tomoe Sagoh, Takayuki Yamazaki, Michito Nakayama, Atsushi Hashimoto, Takeshi Miyagi
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Patent number: 8532250Abstract: An X-ray CT apparatus has an X-ray source, an X-ray detector, a temperature sensor, a data acquisition unit and a controller. The X-ray source generates an X-ray. The X-ray detector detects the X-ray. The temperature sensor detects a temperature of the X-ray detector. The data acquisition unit acquires data from the X-ray detector. The controller controls a temperature of the X-ray detector through adjustment of a workload of the data acquisition unit during a non-scanning time.Type: GrantFiled: February 22, 2011Date of Patent: September 10, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Atsushi Hashimoto, Takayuki Yamazaki, Michito Nakayama, Tomoe Sagoh, Takeshi Miyagi
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Publication number: 20130010921Abstract: According to one embodiment, an X-ray computed tomography apparatus includes an X-ray tube, a detector, a first DAS, and a second DAS. The radiation detector includes a plurality of detection elements. Each detection element repeatedly detects X-rays generated by the X-ray tube and transmitted through a subject and repeatedly generates an electrical signal corresponding to the energy of the repeatedly detected X-rays. The first DAS acquires the electrical signal detected by part of the imaging region of each detection element in the integral mode. The second DAS acquires the electrical signal detected by the other part of the imaging region of each detection element in the photon count type mode.Type: ApplicationFiled: September 13, 2012Publication date: January 10, 2013Inventors: Tomoe SAGOH, Michito NAKAYAMA, Keiji MATSUDA, Shuya NAMBU, Atsushi HASHIMOTO, Takashi KANEMARU
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Publication number: 20120033784Abstract: According to one embodiment, an X-ray detector includes a plurality of detection packs and a plurality of heaters. Each of the detection packs includes a plurality of detection elements that detect X rays having passed through a subject and output a detection signal corresponding to the X rays and is arranged along a predetermined direction. Each of the heaters is provided corresponding to each of the detection packs and individually controls the temperature of each of the detection packs.Type: ApplicationFiled: August 2, 2011Publication date: February 9, 2012Inventors: Keiji Matsuda, Michito Nakayama, Shuya Nambu, Takashi Kanemaru, Atsushi Hashimoto, Tomoe Sagoh
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Publication number: 20110311023Abstract: An X-ray CT apparatus includes an X-ray source configured to generate an X-ray; a scintillator configured to convert the X-ray into a fluorescent; a substrate including a plurality of photosensitive elements configured to convert the fluorescent into an electric charge; a temperature sensor formed on the surface of the substrate; a heat element formed on the surface of the substrate; and a controller configured to control a temperature of the photodiode by adjusting an electric current of the heat element.Type: ApplicationFiled: June 21, 2011Publication date: December 22, 2011Applicants: TOSHIBA MEDICAL SYSTEMS CORPORATION, Kabushiki Kaisha ToshibaInventors: Tomoe SAGOH, Takayuki Yamazaki, Michito Nakayama, Atsushi Hashimoto, Takeshi Miyagi
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Publication number: 20110222649Abstract: An X-ray CT apparatus has an X-ray source, an X-ray detector, a temperature sensor, a data acquisition unit and a controller. The X-ray source generates an X-ray. The X-ray detector detects the X-ray. The temperature sensor detects a temperature of the X-ray detector. The data acquisition unit acquires data from the X-ray detector. The controller controls a temperature of the X-ray detector through adjustment of a workload of the data acquisition unit during a non-scanning time.Type: ApplicationFiled: February 22, 2011Publication date: September 15, 2011Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Atsushi HASHIMOTO, Takayuki YAMAZAKI, Michito NAKAYAMA, Tomoe SAGOH, Takeshi MIYAGI
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Patent number: 5894443Abstract: In a static semiconductor memory device including a plurality of groups of memory cells, a plurality of word lines, and a plurality of bit line pairs, a plurality of transfer gate circuits are provided. Each of the transfer gate circuits is connected between one group of the groups of memory cells and one of the bit line pairs, and is controlled by a voltage at one of the word lines.Type: GrantFiled: October 22, 1997Date of Patent: April 13, 1999Assignee: NEC CorporationInventor: Tomoe Sagoh