Patent application number | Description | Published |
20080203500 | Semiconductor device and production method therefor - A semiconductor device provided with a MIS type field effect transistor comprising a silicon substrate, a gate insulating film having a high-dielectric-constant metal oxide film which is formed on the silicon substrate via a silicon containing insulating film, a silicon-containing gate electrode formed on the gate insulating film, and a sidewall including, as a constituting material, silicon oxide on a lateral face side of the gate electrode, wherein a silicon nitride film is interposed between the sidewall and at least the lateral face of the gate electrode. This semiconductor device, although having a fine structure with a small gate length, is capable of low power consumption and fast operation. | 08-28-2008 |
20090232270 | MULTI X-RAY GENERATING APPARATUS AND X-RAY IMAGING APPARATUS - A multi X-ray generating apparatus which has a plurality of electron sources arranged two-dimensionally and targets arranged at positions opposite to the electron sources includes a multi electron source which includes a plurality of electron sources and outputs electrons from driven electron sources by selectively driving a plurality of electron sources in accordance with supplied driving signals, and a target unit which includes a plurality of targets which generate X-rays in accordance with irradiation of electrons output from the multi electron source and outputs X-rays with different radiation qualities in accordance with the generation locations of X-rays. The generation locations and radiation qualities of X-rays from the target unit are controlled by selectively driving the electron sources of the multi electron source. | 09-17-2009 |
20100246759 | RADIATION IMAGING APPARATUS AND CONTROL METHOD FOR THE SAME - A radiation imaging apparatus that captures radiographic images includes a radioactive ray generating unit configured to irradiate a subject with a plurality of radioactive rays generated by a plurality of electron sources. A radioactive ray detection unit captures a plurality of first radiographic images based on detection of the plurality of radioactive rays that have passed through the subject at different irradiation angles. Area specification unit specifies an object area using the plurality of first radiographic images captured by the radioactive ray detection unit, and a determination unit determines an electron source to be driven from the plurality of electron sources based on the object area specified by the area specification unit, such that a second radiographic image is captured based on the radioactive rays generated by the electron source determined by the determination unit. | 09-30-2010 |
20100266097 | MULTI X-RAY IMAGING APPARATUS AND CONTROL METHOD THEREFOR - An X-ray imaging apparatus includes a multi X-ray source which includes a plurality of X-ray focuses to generate X-rays by irradiating X-ray targets with electron beams, a detector which detects X-rays which have been emitted from the multi X-ray source and have reached a detection surface, and a moving mechanism for moving the multi X-ray source within a plane facing the detection surface. The X-ray imaging apparatus acquires a plurality of X-ray detection signals from the detector by causing the multi X-ray source to perform X-ray irradiation while shifting the positions of a plurality of X-ray focuses which the detector has relative to the detection surface by moving the multi X-ray source using the moving mechanism. The apparatus then generates an X-ray projection image based on the plurality of X-ray detection signals acquired by the detector. | 10-21-2010 |
20100310051 | X-RAY GENERATOR, X-RAY IMAGING APPARATUS, AND CONTROL METHODS THEREFOR - In an X-ray generator which includes an electron beam generating unit which has a plurality of electron emitters and generates an electron beam corresponding to driven electron emitters, and a target electrode which generates X-rays with the irradiation position of an electron beam generated by the electron beam generating unit being an X-ray focus, the X-ray focus shape formed by a set of X-ray focuses on the target electrode is controlled by individually controlling driving of the plurality of electron emitters. | 12-09-2010 |
20110216884 | X-RAY IMAGING APPARATUS - An X-ray imaging apparatus is provided with a multi X-ray source and a collimator in which a plurality of slits for X-rays to pass through are two-dimensionally formed, the size and position of the slits being adjustable. A control unit, as a first control mode, controls the size and position of the slits to move an examination region in parallel, when an X-ray source is changed to a different X-ray source, such that the examination directions are parallel before and after the change. Also, the control unit, as a second control mode, controls the size and position of the slits to rotate the examination direction, when an X-ray source is changed to a different X-ray source, such that the center of the examination regions is the same before and after the change. | 09-08-2011 |
20110249796 | MULTI X-RAY IMAGING APPARATUS AND CONTROL METHOD THEREFOR - An X-ray imaging apparatus includes a multi X-ray source which includes a plurality of X-ray focuses to generate X-rays by irradiating X-ray targets with electron beams, a detector which detects X-rays which have been emitted from the multi X-ray source and have reached a detection surface, and a moving mechanism for moving the multi X-ray source within a plane facing the detection surface. The X-ray imaging apparatus acquires a plurality of X-ray detection signals from the detector by causing the multi X-ray source to perform X-ray irradiation while shifting the positions of a plurality of X-ray focuses which the detector has relative to the detection surface by moving the multi X-ray source using the moving mechanism. The apparatus then generates an X-ray projection image based on the plurality of X-ray detection signals acquired by the detector. | 10-13-2011 |
20110249802 | MULTI X-RAY GENERATING APPARATUS AND X-RAY IMAGING APPARATUS - A multi X-ray generating apparatus which has a plurality of electron sources arranged two-dimensionally and targets arranged at positions opposite to the electron sources includes a multi electron source which includes a plurality of electron sources and outputs electrons from driven electron sources by selectively driving a plurality of electron sources in accordance with supplied driving signals, and a target unit which includes a plurality of targets which generate X-rays in accordance with irradiation of electrons output from the multi electron source and outputs X-rays with different radiation qualities in accordance with the generation locations of X-rays. The generation locations and radiation qualities of X-rays from the target unit are controlled by selectively driving the electron sources of the multi electron source. | 10-13-2011 |
20120163533 | RADIATION IMAGING APPARATUS AND CONTROL METHOD FOR THE SAME - A radiation imaging apparatus that captures radiographic images includes a radioactive ray generating unit configured to irradiate a subject with a plurality of radioactive rays generated by a plurality of electron sources. A radioactive ray detection unit captures a plurality of first radiographic images based on detection of the plurality of radioactive rays that have passed through the subject at different irradiation angles. Area specification unit specifies an object area using the plurality of first radiographic images captured by the radioactive ray detection unit, and a determination unit determines an electron source to be driven from the plurality of electron sources based on the object area specified by the area specification unit, such that a second radiographic image is captured based on the radioactive rays generated by the electron source determined by the determination unit. | 06-28-2012 |
20120314837 | RADIATION TRANSMISSION TYPE TARGET - A radiation transmission type target to be used for a radiation tube has a target metal | 12-13-2012 |
20120318990 | RADIATION DETECTION PANEL AND RADIATION IMAGING APPARATUS - A radiation detection panel including a photoelectric conversion element that detects fluorescence by a phosphor layer, the radiation detection panel comprising: a base material for supporting the phosphor layer, including the photoelectric conversion element; and a protective film for covering the phosphor layer, wherein the phosphor layer is formed on a surface and at least one lateral face of the base material, and an angle between the surface and the at least one lateral face is less than 90 degrees. | 12-20-2012 |
20130182828 | X-RAY IMAGING APPARATUS - An X-ray imaging apparatus comprises an X-ray source; a housing configured to accommodate the X-ray source; and a plurality of supporting legs each connected to the housing via a movable connecting portion and configured to support the housing, wherein each of the supporting legs can change, by the movable connecting portion, a support angle made by a ground plane and the supporting leg. | 07-18-2013 |
20130188781 | X-RAY IMAGING APPARATUS - An X-ray imaging apparatus comprises an X-ray generation unit; a plurality of supporting members configured to support the X-ray generation unit; and an accommodation unit configured to accommodate the X-ray generation unit and the plurality of supporting members, wherein the accommodation unit is formed by bringing a first member and a second member into contact with each other, each of the plurality of supporting members is connected to the first member by a first connecting portion that is rotatable and to the X-ray generation unit by a second connecting portion that is rotatable, and a support height of the X-ray generation unit supported by the supporting members can be adjusted in accordance with a distance between the first member and the second member. | 07-25-2013 |
20130202082 | MULTI-X-RAY GENERATING APPARATUS AND X-RAY IMAGING APPARATUS - A multi-X-ray generating apparatus which has a plurality of electron sources arranged two-dimensionally and targets arranged at positions opposite to the electron sources includes a multi-electron source which includes a plurality of electron sources and outputs electrons from driven electron sources by selectively driving a plurality of electron sources in accordance with supplied driving signals, and a target unit which includes a plurality of targets which generate X-rays in accordance with irradiation of electrons output from the multi-electron source and outputs X-rays with different radiation qualities in accordance with the generation locations of X-rays. The generation locations and radiation qualities of X-rays from the target unit are controlled by selectively driving the electron sources of the multi-electron source. | 08-08-2013 |
20130230142 | X-RAY IMAGING APPARATUS - Provided is an X-ray imaging apparatus, including: an X-ray generation unit for radiating an X-ray; a control unit for controlling the X-ray generation unit; an X-ray reception unit; a storing unit capable of storing the X-ray reception unit for receiving the X-ray radiated from the X-ray generation unit; and a U-shaped arm unit for holding the X-ray generation unit, the control unit, and the storing unit. | 09-05-2013 |
20130294580 | X-RAY GENERATOR, X-RAY IMAGING APPARATUS, AND CONTROL METHODS THEREFOR - In an X-ray generator which includes an electron beam generating unit which has a plurality of electron emitters and generates an electron beam corresponding to driven electron emitters, and a target electrode which generates X-rays with the irradiation position of an electron beam generated by the electron beam generating unit being an X-ray focus, the X-ray focus shape formed by a set of X-ray focuses on the target electrode is controlled by individually controlling driving of the plurality of electron emitters. | 11-07-2013 |
20130294582 | X-RAY IMAGING APPARATUS - An X-ray imaging apparatus is provided with a multi X-ray source and a collimator in which a plurality of slits for X-rays to pass through are two-dimensionally formed, the size and position of the slits being adjustable. A control unit, as a first control mode, controls the size and position of the slits to move an examination region in parallel, when an X-ray source is changed to a different X-ray source, such that the examination directions are parallel before and after the change. Also, the control unit, as a second control mode, controls the size and position of the slits to rotate the examination direction, when an X-ray source is changed to a different X-ray source, such that the center of the examination regions is the same before and after the change. | 11-07-2013 |
20130322594 | STEREOSCOPIC X-RAY IMAGING APPARATUS - A stereoscopic X-ray imaging apparatus includes: right and left X-ray tubes; a diaphragm unit in which right and left openings are formed through which X-rays radiated by the right and left X-ray tubes pass, respectively; an X-ray sensor on which the X-ray radiated by each of the right and left X-ray tubes is projected; a controller configured to control positions and sizes of the right and left openings; and right and left visible light sources configured to radiate a visible light to the X-ray sensor in the same area as each of the right and left X-ray tubes through each of the right and left openings. Spectra of the visible light emitted by the right and left visible light sources are different from each other. | 12-05-2013 |
20140177797 | X-RAY IMAGING APPARATUS - An X-ray imaging apparatus includes an X-ray generating unit, an X-ray image receiving unit, a control unit, and an arm unit. The X-ray generating unit radiates X-rays. The X-ray image receiving unit receives X-rays radiated by the X-ray generating unit. The control unit controls the X-ray generating unit and the X-ray image receiving unit. The arm unit is configured to extend so as to position the X-ray generating unit and the control unit above the X-ray image receiving unit and to retract in the case of transportation. | 06-26-2014 |