Patents by Inventor Yuuichirou Ueno
Yuuichirou Ueno 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: 8116427Abstract: A radiological imaging apparatus of the present invention comprises an image pickup device and a medical examinee holding device that is provided with a bed. The image pickup device includes a large number of radiation detectors and radiation detector support plates. A large number of radiation detectors are mounted around the circumference of a through-hole and arranged in the axial direction of the through-hole. The radiation detectors are arranged in three layers formed radially with respect to the center of the through-hole and mounted on the lateral surfaces of the radiation detector support plates. Since the radiation detectors are not only arranged in the axial direction and circumferential direction of the through-hole but also arrayed in the radial direction, it is possible to obtain accurate information about a ?-ray arrival position in the radial direction of the through-hole (the positional information about a radiation detector from which a ?-ray image pickup signal is output).Type: GrantFiled: June 21, 2011Date of Patent: February 14, 2012Assignee: Hitachi, Ltd.Inventors: Shinichi Kojima, Takashi Okazaki, Yuuichirou Ueno, Kikuo Umegaki, Kensuke Amemiya, Kazuhiro Takeuchi, Hiroshi Kitaguchi, Kazuma Yokoi, Norihito Yanagita
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Publication number: 20110280365Abstract: A radiological imaging apparatus of the present invention comprises an image pickup device and a medical examinee holding device that is provided with a bed. The image pickup device includes a large number of radiation detectors and radiation detector support plates. A large number of radiation detectors are mounted around the circumference of a through-hole and arranged in the axial direction of the through-hole. The radiation detectors are arranged in three layers formed radially with respect to the center of the through-hole and mounted on the lateral surfaces of the radiation detector support plates. Since the radiation detectors are not only arranged in the axial direction and circumferential direction of the through-hole but also arrayed in the radial direction, it is possible to obtain accurate information about a ?-ray arrival position in the radial direction of the through-hole (the positional information about a radiation detector from which a ?-ray image pickup signal is output).Type: ApplicationFiled: June 21, 2011Publication date: November 17, 2011Inventors: Shinichi Kojima, Takashi Okazaki, Yuuichirou Ueno, Kikuo Umegaki, Kensuke Amemiya, Kazuhiro Takeuchi, Hiroshi Kitaguchi, Kazuma Yokoi, Norihito Yanagita
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Patent number: 7986763Abstract: A radiological imaging apparatus of the present invention comprises an image pickup device and a medical examinee holding device that is provided with a bed. The image pickup device includes a large number of radiation detectors and radiation detector support plates. A large number of radiation detectors are mounted around the circumference of a through-hole and arranged in the axial direction of the through-hole. The radiation detectors are arranged in three layers formed radially with respect to the center of the through-hole and mounted on the lateral surfaces of the radiation detector support plates. Since the radiation detectors are not only arranged in the axial direction and circumferential direction of the through-hole but also arrayed in the radial direction, it is possible to obtain accurate information about a ?-ray arrival position in the radial direction of the through-hole (the positional information about a radiation detector from which a ?-ray image pickup signal is output).Type: GrantFiled: November 9, 2009Date of Patent: July 26, 2011Assignee: Hitachi, Ltd.Inventors: Shinichi Kojima, Takashi Okazaki, Yuuichirou Ueno, Kikuo Umegaki, Kensuke Amemiya, Kazuhiro Takeuchi, Hiroshi Kitaguchi, Kazuma Yokoi, Norihito Yanagita
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Patent number: 7977647Abstract: A radiological imaging apparatus using a semiconductor radiation detector to make it possible to reduce a radiation measurement off time that may result from an attempt to avoid polarization, the radiological imaging apparatus comprising a capacitor that applies a voltage to a semiconductor radiation detector that detects a radiation from a subject, first current regulated means for conducting a charge current to the capacitor, and second current regulated means for conducting a discharge current from the capacitor, or comprising a capacitor that applies a voltage to the semiconductor radiation detector, a first resistor that conducts a charge current to and a discharge current from the capacitor, and a second resistor connected in parallel with the first resistor to subject the capacitor to charging and discharging.Type: GrantFiled: March 5, 2009Date of Patent: July 12, 2011Assignee: Hitachi, Ltd.Inventors: Tomoyuki Seino, Yuuichirou Ueno, Katsutoshi Tsuchiya, Kazuma Yokoi, Shinya Kominami
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Patent number: 7759646Abstract: A radiological imaging apparatus of the present invention includes an X-ray source for emitting an X-ray, a ?-ray detecting section for outputting a detection signal of a ?-ray, and an X-ray detecting section for outputting a detecting signal of an X-ray. The X-ray source moves around a bed for placing an examinee. The ?-ray detecting section has a plurality of radiation detectors aligned in the longitudinal direction of the bed and placed around the bed. The X-ray detecting section is positioned in a region formed between one end and the other end of the ?-ray detecting section in the longitudinal direction of the bed. The X-ray source is also positioned in the region. Since the X-ray detecting section is placed in the region, it is possible to accurately combine a PET image and an X-ray computed tomographic image.Type: GrantFiled: October 31, 2007Date of Patent: July 20, 2010Assignee: Hitachi, Ltd.Inventors: Kensuke Amemiya, Yuuichirou Ueno, Hiroshi Kitaguchi, Kikuo Umegaki, Shinichi Kojima, Norihito Yanagida, Kazuma Yokoi, Takashi Okazaki
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Patent number: 7750303Abstract: A positron emission tomography apparatus installs a plurality of detector units in the circumference of a bed. The detector unit installs a plurality of combined substrates including detectors, analogue ASICs, and a digital ASIC and a voltage adjustment device inside a housing. A partition plate installed inside the housing separates the region inside the housing into a first region installed with the combined substrates and a second region installed with the voltage adjustment device. The partition plate blocks noise generated in the voltage adjustment device so as not to affect ?-ray detection signals outputted from the detectors, thereby preventing the effect of the noise generated in the voltage adjustment device toward ?-ray detection signals and shortening the examination time.Type: GrantFiled: February 16, 2006Date of Patent: July 6, 2010Assignee: Hitachi, Ltd.Inventors: Yuuichirou Ueno, Kensuke Amemiya, Norihito Yanagita, Takafumi Ishitsu, Tomoyuki Seino, Takashi Matsumoto, Shinobu Irikura
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Patent number: 7745795Abstract: In a gamma camera, a plurality of radiation detector elements having a rod-shaped first electrode, a semiconductor device surrounds the first electrode to contact with it for entering a radiation, and a second electrode provided for the side surface of the semiconductor device are detachably attached to a holding member. The holding member has a first electrode contact portion contacted with the first electrode and a second electrode contact portion contacted with the second electrode. A collimator in which a plurality of radiation paths provided corresponding to the plurality of radiation detector elements are formed is arranged on the radiation entering side of the plurality of radiation detector elements. A ?-ray detection signal outputted from the first electrode contact portion is sent to a signal processing integrated circuit. A high voltage is applied to the second electrode via the second electrode contact portion.Type: GrantFiled: March 11, 2008Date of Patent: June 29, 2010Assignee: Hitachi, Ltd.Inventors: Katsutoshi Tsuchiya, Hiroshi Kitaguchi, Kazuma Yokoi, Kikuo Umegaki, Kensuke Amemiya, Yuuichirou Ueno, Norihito Yanagita, Shinichi Kojima
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Patent number: 7683338Abstract: The radiological imaging system which can improve an energy resolution and perform a diagnosis with high accuracy includes a bed for carrying an examinee H, first and second imaging apparatuses and disposed along the longitudinal direction of the bed. The first imaging apparatus has a plurality of semiconductor radiation detectors for detecting ?-rays emitted from the examinee H, arranged around the bed, the second imaging apparatus has an X-ray source for emitting X-rays to the examinee H and a radiation detector for detecting X-rays which have been emitted from the X-ray source and passed through the examinee H, and the bed is shared by the first imaging apparatus and the second imaging apparatus.Type: GrantFiled: June 24, 2004Date of Patent: March 23, 2010Assignee: Hitachi, Ltd.Inventors: Yuuichirou Ueno, Hiroshi Kitaguchi, Katsutoshi Tsuchiya, Kensuke Amemiya, Kazuma Yokoi, Shinichi Kojima, Norihito Yanagita, Takafumi Ishitsu
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Publication number: 20100054571Abstract: A radiological imaging apparatus of the present invention comprises an image pickup device and a medical examinee holding device that is provided with a bed. The image pickup device includes a large number of radiation detectors and radiation detector support plates. A large number of radiation detectors are mounted around the circumference of a through-hole and arranged in the axial direction of the through-hole. The radiation detectors are arranged in three layers formed radially with respect to the center of the through-hole and mounted on the lateral surfaces of the radiation detector support plates. Since the radiation detectors are not only arranged in the axial direction and circumferential direction of the through-hole but also arrayed in the radial direction, it is possible to obtain accurate information about a ?-ray arrival position in the radial direction of the through-hole (the positional information about a radiation detector from which a ?-ray image pickup signal is output).Type: ApplicationFiled: November 9, 2009Publication date: March 4, 2010Inventors: Shinichi Kojima, Takashi Okazaki, Yuuichirou Ueno, Kikuo Umegaki, Kensuke Amemiya, Kazuhiro Takeuchi, Hiroshi Kitaguchi, Kazuma Yokoi, Norihito Yanagita
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Patent number: 7634048Abstract: A radiological imaging apparatus of the present invention comprises an image pickup device and a medical examinee holding device that is provided with a bed. The image pickup device includes a large number of radiation detectors and radiation detector support plates. A large number of radiation detectors are mounted around the circumference of a through-hole and arranged in the axial direction of the through-hole. The radiation detectors are arranged in three layers formed radially with respect to the center of the through-hole and mounted on the lateral surfaces of the radiation detector support plates. Since the radiation detectors are not only arranged in the axial direction and circumferential direction of the through-hole but also arrayed in the radial direction, it is possible to obtain accurate information about a ?-ray arrival position in the radial direction of the through-hole (the positional information about a radiation detector from which a ?-ray image pickup signal is output).Type: GrantFiled: December 9, 2008Date of Patent: December 15, 2009Assignee: Hitachi Ltd.Inventors: Shinichi Kojima, Takashi Okazaki, Yuuichirou Ueno, Kikuo Umegaki, Kensuke Amemiya, Kazuhiro Takeuchi, Hiroshi Kitaguchi, Kazuma Yokoi, Norihito Yanagita
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Patent number: 7627082Abstract: A radiological imaging apparatus of the present invention comprises an image pickup device and a medical examinee holding device that is provided with a bed. The image pickup device includes a large number of radiation detectors and radiation detector support plates. A large number of radiation detectors are mounted around the circumference of a through-hole and arranged in the axial direction of the through-hole. The radiation detectors are arranged in three layers formed radically with respect to the center of the through-hole and mounted on the lateral surfaces of the radiation detector support plates. Since the radiation detectors are not only arranged in the axial direction and circumferential direction of the through-hole but also arrayed in the radial direction, it is possible to obtain accurate information about a ?-ray arrival position in the radial direction of the through-hole (the positional information about a radiation detector from which a ?-ray image pickup signal is output).Type: GrantFiled: October 9, 2007Date of Patent: December 1, 2009Assignee: Hitachi, Ltd.Inventors: Shinichi Kojima, Takashi Okazaki, Yuuichirou Ueno, Kikuo Umegaki, Kensuke Amemiya, Kazuhiro Takeuchi, Hiroshi Kitaguchi, Kazuma Yokoi, Norihito Yanagita
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Patent number: 7615757Abstract: The semiconductor radiological detector 1 minimizes a dead space resulting from the draw-out of a signal line from an electrode and which allows a number of semiconductor devices to be densely arranged to improve sensitivity and spatial resolution. The semiconductor radiological detector 1 comprises a semiconductor device 2, an anode 3 attached to one surface of the semiconductor device 2, and a cathode 4 attached to the other surface of the semiconductor device 2. A signal line 5 is provided on the anode 3; the signal line 5 extends straight from the anode 3 and is connected to an X axis wire 12. Another signal line 13 is provided on the cathode 4; the signal line 13 extends straight from the cathode 4 and is connected to a Y axis wire 14.Type: GrantFiled: February 13, 2007Date of Patent: November 10, 2009Assignee: Hitachi, Ltd.Inventors: Kazuma Yokoi, Hiroshi Kitaguchi, Takafumi Ishitsu, Kensuke Amemiya, Yuuichirou Ueno, Katsutoshi Tsuchiya, Norihito Yanagita, Shinichi Kojima
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Publication number: 20090194701Abstract: A radiological imaging apparatus using a semiconductor radiation detector to make it possible to reduce a radiation measurement off time that may result from an attempt to avoid polarization, the radiological imaging apparatus comprising a capacitor that applies a voltage to a semiconductor radiation detector that detects a radiation from a subject, first current regulated means for conducting a charge current to the capacitor, and second current regulated means for conducting a discharge current from the capacitor, or comprising a capacitor that applies a voltage to the semiconductor radiation detector, a first resistor that conducts a charge current to and a discharge current from the capacitor, and a second resistor connected in parallel with the first resistor to subject the capacitor to charging and discharging.Type: ApplicationFiled: March 5, 2009Publication date: August 6, 2009Inventors: Tomoyuki Seino, Yuuichirou Ueno, Katsutoshi Tsuchiya, Kazuma Yokoi, Shinya Kominami
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Publication number: 20090092229Abstract: A radiological imaging apparatus of the present invention comprises an image pickup device and a medical examinee holding device that is provided with a bed. The image pickup device includes a large number of radiation detectors and radiation detector support plates. A large number of radiation detectors are mounted around the circumference of a through-hole and arranged in the axial direction of the through-hole. The radiation detectors are arranged in three layers formed radially with respect to the center of the through-hole and mounted on the lateral surfaces of the radiation detector support plates. Since the radiation detectors are not only arranged in the axial direction and circumferential direction of the through-hole but also arrayed in the radial direction, it is possible to obtain accurate information about a ?-ray arrival position in the radial direction of the through-hole (the positional information about a radiation detector from which a ?-ray image pickup signal is output).Type: ApplicationFiled: December 9, 2008Publication date: April 9, 2009Inventors: Shinichi Kojima, Takashi Okazaki, Yuuichirou Ueno, Kikuo Umegaki, Kensuke Amemiya, Kazuhiro Takeuchi, Hiroshi Kitaguchi, Kazuma Yokoi, Norihito Yanagita
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Patent number: 7514689Abstract: A radiological imaging apparatus using a semiconductor radiation detector to make it possible to reduce a radiation measurement off time that may result from an attempt to avoid polarization, the radiological imaging apparatus comprising a capacitor that applies a voltage to a semiconductor radiation detector that detects a radiation from a subject, first current regulated means for conducting a charge current to the capacitor, and second current regulated means for conducting a discharge current from the capacitor, or comprising a capacitor that applies a voltage to the semiconductor radiation detector, a first resistor that conducts a charge current to and a discharge current from the capacitor, and a second resistor connected in parallel with the first resistor to subject the capacitor to charging and discharging.Type: GrantFiled: December 27, 2005Date of Patent: April 7, 2009Assignee: Hitachi, Ltd.Inventors: Tomoyuki Seino, Yuuichirou Ueno, Katsutoshi Tsuchiya, Kazuma Yokoi, Shinya Kominami
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Patent number: 7511277Abstract: A nuclear medicine diagnostic apparatus is provided that can improve time resolution and energy resolution and diagnosing accuracy by enhancing radiation detectors in terms of moisture-proofing and dust-proofing effects while efficiently cooling the radiation detectors. The apparatus has a first region A in which radiation detectors are to be accommodated, and a second region B in which signal processors are to be accommodated. These regions are provided inside a housing member 5 via an adiabatic member 7. The housing member 5 also has a ventilation port 8 formed to communicate with the first region A and equipped with an anti-dust filter. Ventilation holes 34 are formed to communicate with the first region B and serving as entrances for cooling air. Unit fans 33 serve as exits for the cooling air.Type: GrantFiled: September 22, 2006Date of Patent: March 31, 2009Assignee: Hitachi, Ltd.Inventors: Yuuichirou Ueno, Takafumi Ishitsu, Keiji Kobashi, Kensuke Amemiya, Katsutoshi Tsuchiya
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Patent number: 7488949Abstract: A radiological imaging apparatus including a bed which supports an object to be examined and an imaging apparatus, wherein the imaging apparatus has a unit substrate including a first substrate including a radiation detector and a second substrate including a signal processing apparatus to which detection signals of the radiation detector are inputted and the first substrate is connected through a connector, and is provided with a heat insulating member of separating mutually a first area where the radiation detector is disposed from a second area where the signal processing apparatus is disposed, both of which are formed inside the imaging apparatus.Type: GrantFiled: August 19, 2005Date of Patent: February 10, 2009Assignee: Hitachi, Ltd.Inventors: Yuuichirou Ueno, Kensuke Amemiya, Norihito Yanagita, Takafumi Ishitsu, Keiji Kobashi, Tomoyuki Seino, Katsutoshi Tsuchiya
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Publication number: 20080283760Abstract: In a gamma camera, a plurality of radiation detector elements having a rod-shaped first electrode, a semiconductor device surrounds the first electrode to contact with it for entering a radiation, and a second electrode provided for the side surface of the semiconductor device are detachably attached to a holding member. The holding member has a first electrode contact portion contacted with the first electrode and a second electrode contact portion contacted with the second electrode. A collimator in which a plurality of radiation paths provided corresponding to the plurality of radiation detector elements are formed is arranged on the radiation entering side of the plurality of radiation detector elements. A ?-ray detection signal outputted from the first electrode contact portion is sent to a signal processing integrated circuit. A high voltage is applied to the second electrode via the second electrode contact portion.Type: ApplicationFiled: March 11, 2008Publication date: November 20, 2008Inventors: Katsutoshi TSUCHIYA, Hiroshi Kitaguchi, Kazuma Yokoi, Kikuo Umegaki, Kensuke Amemiya, Yuuichirou Ueno, Norihito Yanagita, Shinichi Kojima
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Patent number: 7446319Abstract: A radiation imaging apparatus with high spatial resolution including semiconductor radiation detectors arranged on a wiring board capable of detecting ?-rays by separating their positions in the direction of incidence of ?-rays is provided. A semiconductor radiation detector is constructed by including five semiconductor devices made up of, for example, CdTe rectangular parallelepiped plates, a cathode electrode on one side of the semiconductor device, an anode electrode on the other side of the semiconductor device and an insulator for coating five semiconductor detection devices from the outside. The semiconductor radiation detector is mounted on a wiring board using an anode pin and a cathode pin.Type: GrantFiled: June 24, 2004Date of Patent: November 4, 2008Assignee: Hitachi, Ltd.Inventors: Norihito Yanagita, Hiroshi Kitaguchi, Takafumi Ishitsu, Kensuke Amemiya, Yuuichirou Ueno, Katsutoshi Tsuchiya, Shinichi Kojima, Kazuma Yokoi
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Publication number: 20080152074Abstract: A radiological imaging apparatus of the present invention includes an X-ray source for emitting an X-ray, a ?-ray detecting section for outputting a detection signal of a ?-ray, and an X-ray detecting section for outputting a detecting signal of an X-ray. The X-ray source moves around a bed for placing an examinee. The ?-ray detecting section has a plurality of radiation detectors aligned in the longitudinal direction of the bed and placed around the bed. The X-ray detecting section is positioned in a region formed between one end and the other end of the ?-ray detecting section in the longitudinal direction of the bed. The X-ray source is also positioned in the region. Since the X-ray detecting section is placed in the region, it is possible to accurately combine a PET image and an X-ray computed tomographic image.Type: ApplicationFiled: October 31, 2007Publication date: June 26, 2008Inventors: Kensuke Amemiya, Yuuichirou Ueno, Hiroshi Kitaguchi, Kikuo Umegaki, Shinichi Kojima, Norihito Yanagida, Kazuma Yokoi, Takashi Okazaki