Patents by Inventor Tomoyasu Komori
Tomoyasu Komori 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: 10713823Abstract: When a group of (pre-processed) projection data is stored into a projection-data storage unit, a Gaussian-based expansion-data creating unit creates a group of Gaussian-based expansion data that is expanded from each of the group of projection data through linear combination based on a plurality of Gaussian functions that is stored by a Gaussian-function storage unit and has different center points. A reconstruction-image creating unit then creates a reconstruction image by using the Gaussian-based expansion-data created by the Gaussian-based expansion-data creating unit, and stores the created reconstruction image into an image storage unit.Type: GrantFiled: June 2, 2017Date of Patent: July 14, 2020Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Manabu Teshigawara, Takuzo Takayama, Tomoyasu Komori, Takaya Umehara
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Patent number: 9872658Abstract: According to one embodiment, a medical imaging diagnosis apparatus includes a top-plate, a bed, a first gantry, a second gantry and a moving assembly. The top-plate places a subject thereon. The bed supports the top-plate. The first gantry includes an X-ray generator and an X-ray detector which revolve around the top-plate. The second gantry includes a gamma ray detector which detects gamma rays emitted from the subject. The moving assembly moves, based on a first position indicative of a center position of an effective view field in the first gantry and a second position indicative of a center position of an effective view field in the second gantry, the top-plate relative to the second position.Type: GrantFiled: June 24, 2015Date of Patent: January 23, 2018Assignee: Toshiba Medical Systems CorporationInventors: Yasunobu Yamada, Katsuhito Morino, Tomoyasu Komori, Masakazu Matsuura, Hisashi Yasuda
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Publication number: 20170263022Abstract: When a group of (pre-processed) projection data is stored into a projection-data storage unit, a Gaussian-based expansion-data creating unit creates a group of Gaussian-based expansion data that is expanded from each of the group of projection data through linear combination based on a plurality of Gaussian functions that is stored by a Gaussian-function storage unit and has different center points. A reconstruction-image creating unit then creates a reconstruction image by using the Gaussian-based expansion-data created by the Gaussian-based expansion-data creating unit, and stores the created reconstruction image into an image storage unit.Type: ApplicationFiled: June 2, 2017Publication date: September 14, 2017Applicant: TOSHIBA MEDICAL SYSYTEMS CORPORATIONInventors: Manabu TESHIGAWARA, Takuzo TAKAYAMA, Tomoyasu KOMORI, Takaya UMEHARA
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Patent number: 9747706Abstract: When a group of (pre-processed) projection data is stored into a projection-data storage unit, a Gaussian-based expansion-data creating unit creates a group of Gaussian-based expansion data that is expanded from each of the group of projection data through linear combination based on a plurality of Gaussian functions that is stored by a Gaussian-function storage unit and has different center points. A reconstruction-image creating unit then creates a reconstruction image by using the Gaussian-based expansion-data created by the Gaussian-based expansion-data creating unit, and stores the created reconstruction image into an image storage unit.Type: GrantFiled: February 3, 2010Date of Patent: August 29, 2017Assignee: TOSHIBA MEDICAL SYSYTEMS CORPORATIONInventors: Manabu Teshigawara, Takuzo Takayama, Tomoyasu Komori, Takaya Umehara
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Patent number: 9569842Abstract: A medical imaging apparatus includes a reconstruction unit, a ROI setting unit, and a controller. The reconstruction unit receives projection data that is based on radiation detected by a detector, divides the projection data into a plurality of subsets, and apply a reconstruction process to the subsets by successive approximation to successively generate images. The ROI setting unit sets a ROI in the images. The controller obtains a variation value indicating a change in image quality from the images, and, when the variation value reaches a predetermined value, instructs the reconstruction unit on a new subset count less than the number of the subsets to sequentially reconstruct subsets as many as the new subset count into an image. The reconstruction unit assigns a weight to the projection data based on the ROI, and divides the projection data into the subsets based on the weight.Type: GrantFiled: July 24, 2015Date of Patent: February 14, 2017Assignee: Toshiba Medical Systems CorporationInventors: Masakazu Matsuura, Katsuhito Morino, Tomoyasu Komori, Yasunobu Yamada, Hisashi Yasuda
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Publication number: 20150332456Abstract: A medical imaging apparatus includes a reconstruction unit, a ROI setting unit, and a controller. The reconstruction unit receives projection data that is based on radiation detected by a detector, divides the projection data into a plurality of subsets, and apply a reconstruction process to the subsets by successive approximation to successively generate images. The ROI setting unit sets a ROI in the images. The controller obtains a variation value indicating a change in image quality from the images, and, when the variation value reaches a predetermined value, instructs the reconstruction unit on a new subset count less than the number of the subsets to sequentially reconstruct subsets as many as the new subset count into an image. The reconstruction unit assigns a weight to the projection data based on the ROI, and divides the projection data into the subsets based on the weight.Type: ApplicationFiled: July 24, 2015Publication date: November 19, 2015Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Masakazu MATSUURA, Katsuhito MORINO, Tomoyasu KOMORI, Yasunobu YAMADA, Hisashi YASUDA
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Publication number: 20150289829Abstract: According to one embodiment, a medical imaging diagnosis apparatus includes a top-plate, a bed, a first gantry, a second gantry and a moving assembly. The top-plate places a subject thereon. The bed supports the top-plate. The first gantry includes an X-ray generator and an X-ray detector which revolve around the top-plate. The second gantry includes a gamma ray detector which detects gamma rays emitted from the subject. The moving assembly moves, based on a first position indicative of a center position of an effective view field in the first gantry and a second position indicative of a center position of an effective view field in the second gantry, the top-plate relative to the second position.Type: ApplicationFiled: June 24, 2015Publication date: October 15, 2015Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Yasunobu YAMADA, Katsuhito Morino, Tomoyasu Komori, Masakazu Matsuura, Hisashi Yasuda
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Patent number: 8604439Abstract: According to one embodiment, a nuclear medicine diagnosis includes a light signal generating unit, photodetection unit, measurement unit, calculation unit, and storage unit. The light signal generating unit repeatedly generates light signals. The photodetection unit repeatedly generates first output signals corresponding to intensities of the light signals, repeatedly generates second output signals corresponding to intensities of gamma rays emitted from a subject. The measurement unit repeatedly measures light signal detection times and repeatedly measures gamma ray detection times. The calculation unit calculates a difference between a target gamma ray detection time and a target light signal detection time of the light signal detection times for each of the gamma ray detection times. The target light signal detection time is measured before the target gamma ray detection time. The storage unit stores the calculated difference in association with a target second output signal of the second output signals.Type: GrantFiled: December 22, 2010Date of Patent: December 10, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Manabu Teshigawara, Takuzo Takayama, Takaya Umehara, Tomoyasu Komori
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Patent number: 8558176Abstract: In a nuclear medicine imaging apparatus as a medical image diagnosis apparatus according to one embodiment, a PET detector is configured to detect a gamma ray emitted from a nuclide introduced into a body of a subject. A PET image reconstruction unit is configured to reconstruct a nuclear medicine image (PET image) as a medical image from the gamma ray projection data created based on the gamma ray detected by the PET detector using successive approximation. A controller is configured to control the PET image reconstruction unit to change the parameter used in the successive approximation depending on information regarding the scanning region in the body of the subject.Type: GrantFiled: June 3, 2011Date of Patent: October 15, 2013Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems CorporationInventors: Tomoyasu Komori, Nobutoku Motomura, Takuzo Takayama, Atsushi Fukano, Masao Yamahana, Tatsuya Watanabe
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Publication number: 20110297834Abstract: In a nuclear medicine imaging apparatus as a medical image diagnosis apparatus according to one embodiment, a PET detector is configured to detect a gamma ray emitted from a nuclide introduced into a body of a subject. A PET image reconstruction unit is configured to reconstruct a nuclear medicine image (PET image) as a medical image from the gamma ray projection data created based on the gamma ray detected by the PET detector using successive approximation. A controller is configured to control the PET image reconstruction unit to change the parameter used in the successive approximation depending on information regarding the scanning region in the body of the subject.Type: ApplicationFiled: June 3, 2011Publication date: December 8, 2011Applicants: TOSHIBA MEDICAL SYSTEMS CORPORATION, KABUSHIKI KAISHA TOSHIBAInventors: TOMOYASU KOMORI, NOBUTOKU MOTOMURA, TAKUZO TAKAYAMA, ATSUSHI FUKANO, MASAO YAMAHANA, TATSUYA WATANABE
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Publication number: 20110163238Abstract: According to one embodiment, a nuclear medicine diagnosis includes a light signal generating unit, photodetection unit, measurement unit, calculation unit, and storage unit. The light signal generating unit repeatedly generates light signals. The photodetection unit repeatedly generates first output signals corresponding to intensities of the light signals, repeatedly generates second output signals corresponding to intensities of gamma rays emitted from a subject. The measurement unit repeatedly measures light signal detection times and repeatedly measures gamma ray detection times. The calculation unit calculates a difference between a target gamma ray detection time and a target light signal detection time of the light signal detection times for each of the gamma ray detection times. The target light signal detection time is measured before the target gamma ray detection time. The storage unit stores the calculated difference in association with a target second output signal of the second output signals.Type: ApplicationFiled: December 22, 2010Publication date: July 7, 2011Inventors: Manabu TESHIGAWARA, Takuzo Takayama, Takaya Umehara, Tomoyasu Komori
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Publication number: 20100264320Abstract: In a case that a gamma ray has entered into a plurality of scintillators adjacent to each other simultaneously, a detector detects the gamma ray having entered simultaneously. A position calculator calculates the ratio of wave heights representing the energies of the detected gamma ray. The position calculator obtains a trajectory of such a gamma ray that a ratio of distances passed by the gamma ray inside the plurality of scintillators, respectively, coincides with the ratio of the wave heights. The position calculator obtains an intersection between the boundary of the plurality of scintillators and the trajectory, as a passing position of the gamma ray. A reconstructing part executes a back projection process with the trajectory passing through the calculated passing position as a projection position.Type: ApplicationFiled: April 6, 2010Publication date: October 21, 2010Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Takuzo Takayama, Manabu Teshigawara, Takaya Umehara, Tomoyasu Komori
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Publication number: 20100195931Abstract: When a group of (pre-processed) projection data is stored into a projection-data storage unit, a Gaussian-based expansion-data creating unit creates a group of Gaussian-based expansion data that is expanded from each of the group of projection data through linear combination based on a plurality of Gaussian functions that is stored by a Gaussian-function storage unit and has different center points. A reconstruction-image creating unit then creates a reconstruction image by using the Gaussian-based expansion-data created by the Gaussian-based expansion-data creating unit, and stores the created reconstruction image into an image storage unit.Type: ApplicationFiled: February 3, 2010Publication date: August 5, 2010Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSYTEMS CORPORATIONInventors: Manabu TESHIGAWARA, Takuzo TAKAYAMA, Tomoyasu KOMORI, Takaya UMEHARA
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Patent number: 6335979Abstract: A list of a plurality of reference images is displayed. Parameters pertaining to signal acquisition, image generation, and image display are related to each of these reference images. When the operator selects one desired reference image from the list, a signal is acquired and an image is generated and displayed in accordance with the parameters related to the selected reference image. The only operation which the operator must perform is to select a reference image visually close to a desired medical image. The apparatus automatically sets detailed signal acquisition parameters, image generation parameters, and image display parameters which the operator need not know.Type: GrantFiled: November 25, 1998Date of Patent: January 1, 2002Assignee: Kabushiki Kaisha ToshibaInventors: Hiromitsu Seto, Tomoyasu Komori
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Patent number: 5848126Abstract: A radiation computed tomography apparatus of this invention includes a couch, a top board which carries the patient and is slidably arranged on the couch, a gantry which has an opening and acquires projection data of a patient by guiding the patient carried on the top board into the opening, reconstruction section for reconstructing the tomographic image of the patient by reconstructing the projection data acquired by the gantry, and adjusting section, arranged on or near the gantry, for adjusting the photographing condition of the patient for obtaining a predetermined tomographic image of the patient.Type: GrantFiled: August 26, 1996Date of Patent: December 8, 1998Assignee: Kabushiki Kaisha ToshibaInventors: Hidehiro Fujita, Masatoshi Tomura, Hisashi Tachizaki, Hideki Fujimoto, Manabu Hiraoka, Masaharu Tsuyuki, Naoko Hasegawa, Tomoyasu Komori, Makoto Suzuki, Hiroshi Hori, Yasuo Maruyama
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Patent number: 5748696Abstract: A radiation computed tomography apparatus of this invention includes a couch, a top board which carries the patient and is slidably arranged on the couch, a gantry which has an opening and acquires projection data of a patient by guiding the patient carried on the top board into the opening, reconstruction section for reconstructing the tomographic image of the patient by reconstructing the projection data acquired by the gantry, and adjusting section, arranged on or near the gantry, for adjusting the photographing condition of the patient for obtaining a predetermined tomographic image of the patient.Type: GrantFiled: August 26, 1996Date of Patent: May 5, 1998Assignee: Kabushiki Kaisha ToshibaInventors: Hidehiro Fujita, Masatoshi Tomura, Hisashi Tachizaki, Hideki Fujimoto, Manabu Hiraoka, Masaharu Tsuyuki, Naoko Hasegawa, Tomoyasu Komori, Makoto Suzuki, Hiroshi Hori, Yasuo Maruyama
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Patent number: 5740222Abstract: A radiation computed tomography apparatus of this invention includes a couch, a top board which carries the patient and is slidably arranged on the couch, a gantry which has an opening and acquires projection data of a patient by guiding the patient carried on the top board into the opening, reconstruction section for reconstructing the tomographic image of the patient by reconstructing the projection data acquired by the gantry, and adjusting section, arranged on or near the gantry, for adjusting the photographing condition of the patient for obtaining a predetermined tomographic image of the patient.Type: GrantFiled: February 24, 1997Date of Patent: April 14, 1998Assignee: Kabushiki Kaisha ToshibaInventors: Hidehiro Fujita, Masatoshi Tomura, Hisashi Tachizaki, Hideki Fujimoto, Manabu Hiraoka, Masaharu Tsuyuki, Naoko Hasegawa, Tomoyasu Komori, Makoto Suzuki, Hiroshi Hori, Yasuo Maruyama
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Patent number: 4602333Abstract: A tomographic image processing apparatus includes at least an image data production device, a main memory, a compression circuit, a write circuit, a magnetic disk, a read circuit, an expansion circuit and an image processing device. The magnetic disk has at least two storage areas. The compressed image data and the non-compressed image data are made from one image data. The compressed image data has priority over the non-compressed image data in the storage operation of the magnetic disk.Type: GrantFiled: September 14, 1984Date of Patent: July 22, 1986Assignee: Kabushiki Kaisha ToshibaInventor: Tomoyasu Komori