Patents by Inventor Eiichi Kanagawa
Eiichi Kanagawa 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: 8958525Abstract: A radiation source is relatively moved with respect to a radiation detector, on which a plurality of short-circuited pixels formed by short-circuiting TFT switches are arranged across the entire surface thereof. Radiation is irradiated onto a subject at a plurality of radiation source positions, in association with movement of the radiation source. A plurality of images corresponding to each of the plurality of the radiation source are obtained. Positions of detection short-circuited pixels for detecting a dose of radiation are set, respectively corresponding to the plurality of radiation source positions. The dose of radiation output from the radiation source is controlled, based on electric signals read out from the detection short-circuited pixels, at each of the plurality of radiation source positions.Type: GrantFiled: June 15, 2012Date of Patent: February 17, 2015Assignee: FUJIFILM CorporationInventor: Eiichi Kanagawa
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Patent number: 8768042Abstract: A radiographic image capturing system includes an image reconstructor for processing a plurality of radiographic images of a subject in order to reconstruct a radiographic tomographic image of the subject, and a monitor for displaying at least the radiographic tomographic image. The radiographic image capturing system also includes a region-of-interest setter for setting a region of interest of the subject on the radiographic images or the radiographic tomographic image, a radiographic image extractor for extracting, from among the radiographic images, two radiographic images for viewing the region of interest by way of stereographic vision, and a first stereographic vision display controller or a second stereographic vision display controller for controlling the monitor to display the extracted two radiographic images for stereographic vision.Type: GrantFiled: March 4, 2011Date of Patent: July 1, 2014Assignee: FUJIFILM CorporationInventors: Eiichi Kanagawa, Noriaki Ida, Sadato Akahori, Yasunori Ohta
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Patent number: 8675814Abstract: When a subject is irradiated with radiation, and the radiation that has passed through the subject is detected, body thickness information about the subject is obtained. Further, a slice image obtainment condition representing a range in which a slice image is obtained in the subject is set based on the body thickness information. Further, the slice image is obtained based on the slice image obtainment condition.Type: GrantFiled: September 28, 2010Date of Patent: March 18, 2014Assignee: Fujifilm CorporationInventors: Sadato Akahori, Jun Enomoto, Eiichi Kanagawa, Yasunori Ohta, Noriaki Ida
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Patent number: 8447088Abstract: An X-ray imaging system comprises: an imaging unit for irradiating a subject with X ray at different angles while moving an X-ray source in one direction in tomosynthesis imaging, detecting the X ray with which the subject has been irradiated with a flat panel detector to acquire projection data of X-ray images taken at different angles; and an image processor for reconstructing a first X-ray tomographic image using projection data acquired by the imaging unit, the image processor including: a correction decision unit for selecting, according to a given selection condition, one of previously provided different corrections to be performed on the projection data; a first image correction unit for performing correction based upon the correction selected by the correction decision unit on the projection data; and a first image reconstruction unit for reconstructing the first X-ray tomographic image using the corrected projection data.Type: GrantFiled: September 21, 2010Date of Patent: May 21, 2013Assignee: FUJIFILM CorporationInventors: Eiichi Kanagawa, Noriaki Ida, Sadato Akahori, Yasunori Ohta
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Patent number: 8363901Abstract: A radiographic tomography apparatus includes a tomosynthetic image capturing section for applying radiation from a radiation source to an examinee at a plurality of different angles, and detecting the radiation transmitted through the examinee with a radiation conversion panel to capture a plurality of tomosynthetic tomography images of the examinee. The radiographic tomography apparatus further includes a still image capturing section for capturing a plurality of still images of the examinee in one image capturing position at different times, and a body motion detector for detecting a body motion of the examinee based on the still images captured by the still image capturing section.Type: GrantFiled: November 9, 2009Date of Patent: January 29, 2013Assignee: FUJIFILM CorporationInventors: Tomoyoshi Nishimura, Jun Enomoto, Hirofumi Sawada, Sadato Akahori, Eiichi Kanagawa, Yasunori Ohta, Noriaki Ida
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Publication number: 20120318986Abstract: A radiation source is relatively moved with respect to a radiation detector, on which a plurality of short-circuited pixels formed by short-circuiting TFT switches are arranged across the entire surface thereof. Radiation is irradiated onto a subject at a plurality of radiation source positions, in association with movement of the radiation source. A plurality of images corresponding to each of the plurality of the radiation source are obtained. Positions of detection short-circuited pixels for detecting a dose of radiation are set, respectively corresponding to the plurality of radiation source positions . The dose of radiation output from the radiation source is controlled, based on electric signals read out from the detection short-circuited pixels, at each of the plurality of radiation source positions.Type: ApplicationFiled: June 15, 2012Publication date: December 20, 2012Applicant: FUJIFILM CORPORATIONInventor: Eiichi KANAGAWA
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Patent number: 8180018Abstract: A tomographic image capturing apparatus includes a radiation source for applying radiation to a subject at a plurality of different angles with respect to the subject, a radiation detector for detecting the radiation which has passed through the subject at each of the different angles and converting the detected radiation into image data, a tomographic image reconstructing unit for processing the image data into a reconstructed tomographic image, and an image capturing sequence setting section for establishing an image capturing sequence of a tomosynthesis image capturing process and a simple image capturing process based on ordering information which represents the tomosynthesis image capturing process for acquiring the reconstructed tomographic image and the simple image capturing process for acquiring a simple captured image.Type: GrantFiled: January 5, 2010Date of Patent: May 15, 2012Assignee: FUJIFILM CorporationInventors: Hirofumi Sawada, Jun Enomoto, Sadato Akahori, Eiichi Kanagawa, Tomoyoshi Nishimura, Yasunori Ohta, Noriaki Ida
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Publication number: 20110222758Abstract: A radiographic image capturing system includes an image reconstructor for processing a plurality of radiographic images of a subject in order to reconstruct a radiographic tomographic image of the subject, and a monitor for displaying at least the radiographic tomographic image. The radiographic image capturing system also includes a region-of-interest setter for setting a region of interest of the subject on the radiographic images or the radiographic tomographic image, a radiographic image extractor for extracting, from among the radiographic images, two radiographic images for viewing the region of interest by way of stereographic vision, and a first stereographic vision display controller or a second stereographic vision display controller for controlling the monitor to display the extracted two radiographic images for stereographic vision.Type: ApplicationFiled: March 4, 2011Publication date: September 15, 2011Applicant: FUJIFILM CorporationInventors: Eiichi KANAGAWA, Noriaki Ida, Sadato Akahori, Yasunori Ohta
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Publication number: 20110075793Abstract: When a subject is irradiated with radiation, and the radiation that has passed through the subject is detected, body thickness information about the subject is obtained. Further, a slice image obtainment condition representing a range in which a slice image is obtained in the subject is set based on the body thickness information. Further, the slice image is obtained based on the slice image obtainment condition.Type: ApplicationFiled: September 28, 2010Publication date: March 31, 2011Applicant: FUJIFILM CorporationInventors: Sadato Akahori, Jun Enomoto, Eiichi Kanagawa, Yasunori Ohta, Noriaki Ida
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Publication number: 20110075908Abstract: An X-ray imaging system comprises: an imaging unit for irradiating a subject with X ray at different angles while moving an X-ray source in one direction in tomosynthesis imaging, detecting the X ray with which the subject has been irradiated with a flat panel detector to acquire projection data of X-ray images taken at different angles; and an image processor for reconstructing a first X-ray tomographic image using projection data acquired by the imaging unit, the image processor including: a correction decision unit for selecting, according to a given selection condition, one of previously provided different corrections to be performed on the projection data; a first image correction unit for performing correction based upon the correction selected by the correction decision unit on the projection data; and a first image reconstruction unit for reconstructing the first X-ray tomographic image using the corrected projection data.Type: ApplicationFiled: September 21, 2010Publication date: March 31, 2011Applicant: FUJIFILM CorporationInventors: Eiichi Kanagawa, Noriaki Ida, Sadato Akahori, Yasunori Ohta
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Publication number: 20110075909Abstract: The X-ray imaging system includes an imager in which projection data of X-ray images taken at different angles is acquired in tomosynthesis imaging, a first image reconstruction unit in which the acquired projection data of the X-ray images is used to reconstruct an X-ray tomographic image, an abnormal pixel data identification unit which refers to a defective pixel map in which information on defective pixels due to a flat panel detector and its peripheral circuit has been stored, to identify, from among pixel data of the reconstructed X-ray tomographic image, pixel data of abnormal pixels corresponding to the defective pixels, and a first image correction unit which corrects the identified pixel data of the abnormal pixels of the X-ray tomographic image to output a first X-ray tomographic image.Type: ApplicationFiled: September 29, 2010Publication date: March 31, 2011Applicant: FUJIFILM CorporationInventors: Eiichi Kanagawa, Noriaki Ida, Sadato Akahori, Yasunori Ohta
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Publication number: 20110075910Abstract: An X-ray imaging system includes an imager in which a subject is irradiated with X-ray at different angles while moving an X-ray source in one direction and the X-ray with which the subject has been irradiated is detected with a flat panel detector to acquire projection data of X-ray images taken at the different angles in tomosynthesis imaging, and an image processor in which an X-ray tomographic image is reconstructed not by using abnormal pixel data corresponding to defective pixels but by using only pixel data corresponding to normal pixels from among pixel data making up the projection data of the X-ray images acquired by the imager by reference to a defective pixel map in which information on the defective pixels due to the flat panel detector and its peripheral circuit has been stored.Type: ApplicationFiled: September 29, 2010Publication date: March 31, 2011Applicant: FUJIFILM CorporationInventors: Eiichi Kanagawa, Noriaki Ida, Sadato Akahori, Yasunori Ohta
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Publication number: 20100195789Abstract: Tomographic image data acquired by a tomosynthesis image capturing assembly are output from an image output unit to an image processor, and are processed for generating a reconstructed tomographic image. In this case, a part of data is selectively and step by step output from the image output unit to the image processor for reconstruction. Before generating a complete tomographic image, the interim result of the tomographic image is displayed on a display unit.Type: ApplicationFiled: January 28, 2010Publication date: August 5, 2010Applicant: FUJIFILM CorporationInventors: Eiichi Kanagawa, Jun Enomoto, Sadato Akahori, Yasunori Ohta, Hirofumi Sawada, Tomoyoshi Nishimura, Noriaki Ida
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Publication number: 20100189330Abstract: A radiographic tomography image generating apparatus includes a radiographic image acquiring assembly for moving a radiation applicator, which is disposed in confronting relation to a radiation detecting device, successively to a plurality of positions, controlling the radiation applicator to apply radiation to a subject disposed over the radiation detecting device in different directions while the radiation applicator moves successively to the plurality of positions, and storing a plurality of radiographic images output successively from the radiation detecting device in an image memory.Type: ApplicationFiled: January 27, 2010Publication date: July 29, 2010Applicant: FUJIFILM CorporationInventors: Sadato Akahori, Jun Enomoto, Hirofumi Sawada, Eiichi Kanagawa, Tomoyoshi Nishimura, Yasunori Ohta, Noriaki Ida
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Publication number: 20100172465Abstract: A tomographic image capturing apparatus includes a radiation source for applying radiation to a subject at a plurality of different angles with respect to the subject, a radiation detector for detecting the radiation which has passed through the subject at each of the different angles and converting the detected radiation into image data, a tomographic image reconstructing unit for processing the image data into a reconstructed tomographic image, and an image capturing sequence setting section for establishing an image capturing sequence of a tomosynthesis image capturing process and a simple image capturing process based on ordering information which represents the tomosynthesis image capturing process for acquiring the reconstructed tomographic image and the simple image capturing process for acquiring a simple captured image.Type: ApplicationFiled: January 5, 2010Publication date: July 8, 2010Applicant: FUJIFILM CorporationInventors: Hirofumi Sawada, Jun Enomoto, Sadato Akahori, Eiichi Kanagawa, Tomoyoshi Nishimura, Yasunori Ohta, Noriaki Ida
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Publication number: 20100171822Abstract: A tomographic image capturing apparatus comprises a radiation source for applying radiation to a subject at a plurality of different angles with respect to the subject, a radiation detector for detecting the radiation which has passed through the subject at each of the different angles and converting the detected radiation into image data, a tomographic image reconstructing unit for processing the image data into a reconstructed tomographic image, and an image capturing continuation determining unit for determining whether image-capturing of the subject is continued or not based on the reconstructed tomographic image.Type: ApplicationFiled: January 5, 2010Publication date: July 8, 2010Applicant: FUJIFILM CorporationInventors: Hirofumi Sawada, Jun Enomoto, Sadato Akahori, Eiichi Kanagawa, Tomoyoshi Nishimura, Yasunori Ohta, Noriaki Ida
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Publication number: 20100124311Abstract: A tomographic image capturing apparatus includes a plurality of radiation sources movable along a predetermined path, for applying respective radiation to a subject at different angles and at different times while moving along the predetermined path, a dose adjuster for adjusting the radiation sources to equalize doses of the radiation emitted from the radiation sources, a radiation detector for detecting radiation transmitted through the subject while the radiation sources move along the predetermined path, and converting the detected radiation into respective items of radiographic image information, and a tomographic image generator for generating a tomographic image of the subject based on the items of radiographic image information converted from the radiation and detected by the radiation detector.Type: ApplicationFiled: November 12, 2009Publication date: May 20, 2010Applicant: FUJIFILM CorporationInventors: Jun Enomoto, Hirofumi Sawada, Sadato Akahori, Eiichi Kanagawa, Tomoyoshi Nishimura, Yasunori Ohta, Noriaki Ida
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Publication number: 20100124312Abstract: A tomographic image capturing apparatus includes a radiation source movable along a predetermined path, for applying radiation to a subject at different angles, a dose adjuster for adjusting the radiation source to make constant the dose of the radiation emitted from the radiation source independently of irradiation angles of the radiation with respect to the subject, a radiation detector for detecting the radiation transmitted through the subject while the radiation source moves along the predetermined path and converting the detected radiation into radiographic image information, and a tomographic image generator for generating a tomographic image of the subject based on the radiographic image information converted from the radiation detected by the radiation detector.Type: ApplicationFiled: November 12, 2009Publication date: May 20, 2010Applicant: FUJIFILM CorporationInventors: Jun Enomoto, Hirofumi Sawada, Sadato Akahori, Eiichi Kanagawa, Tomoyoshi Nishimura, Yasunori Ohta, Noriaki Ida
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Publication number: 20100119116Abstract: A radiographic tomography apparatus includes a tomosynthetic image capturing section for applying radiation from a radiation source to an examinee at a plurality of different angles, and detecting the radiation transmitted through the examinee with a radiation conversion panel to capture a plurality of tomosynthetic tomography images of the examinee. The radiographic tomography apparatus further includes a still image capturing section for capturing a plurality of still images of the examinee in one image capturing position at different times, and a body motion detector for detecting a body motion of the examinee based on the still images captured by the still image capturing section.Type: ApplicationFiled: November 9, 2009Publication date: May 13, 2010Applicant: FUJIFILM CorporationInventors: Tomoyoshi Nishimura, Jun Enomoto, Hirofumi Sawada, Sadato Akahori, Eiichi Kanagawa, Yasunori Ohta, Noriaki Ida
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Publication number: 20100080438Abstract: A radiation image diagnosing system includes a tomosynthesis image capturing assembly for acquiring the data of a plurality of tomosynthetic sectional images. The acquired data of the tomosynthetic sectional images are processed to reconstruct a shift-and-add image by a shift-and-add processor. The acquired data of the tomosynthetic sectional images are also processed to reconstruct an FBP image by an FBP processor. The shift-and-add image and the FBP image are displayed parallel to each other on a display unit.Type: ApplicationFiled: September 29, 2009Publication date: April 1, 2010Applicant: FUJIFILM CorporationInventors: Tomoyoshi Nishimura, Jun Enomoto, Hirofumi Sawada, Sadato Akahori, Eiichi Kanagawa, Yasunori Ohta, Noriaki Ida