Patents by Inventor Takeshi Kuwabara
Takeshi Kuwabara 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: 11185303Abstract: An image processing apparatus includes: an acquisition unit that acquires a radiographic image generated by a radiation detector irradiated with radiation from a radiography apparatus including the radiation detector in which plural pixels, each of which includes a conversion element that generates a larger amount of charge as it is irradiated with a larger amount of radiation, are arranged; and a correction unit that corrects scattered ray components caused by scattered rays of the radiation included in the radiographic image on the basis of region information indicating a region of the radiation detector irradiated with radiation transmitted through a subject, using scattered ray correction data.Type: GrantFiled: April 8, 2019Date of Patent: November 30, 2021Assignee: FUJIFILM CorporationInventor: Takeshi Kuwabara
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Publication number: 20210254390Abstract: A vehicle door control device applied to a vehicle including a swingably supported door and a door braking unit applying a braking force to the door includes: a braking control unit that executes a first braking processing of holding the braking force at a reference braking force for stopping the door and ending when an external force acting on the door is larger than the braking force, and a second braking processing of gradually increasing the braking force from the reference braking force after the first braking processing. The braking control unit executes, during execution of the second braking processing, a processing of eliminating the braking force when a situation where the external force is larger than the braking force continues, and executes a third braking processing of holding the braking force to be equal to or larger than the reference braking force when the situation does not continue.Type: ApplicationFiled: February 3, 2021Publication date: August 19, 2021Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Takeshi KUWABARA, Ryu MIYASHIRO
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Patent number: 11020080Abstract: Disclosed is a technique capable of enhancing usability of a radiographic image capturing apparatus, system, control method of the radiographic image capturing apparatus and a non-transitory computer readable recording medium recorded with a control program, for a user. A radiographic image capturing apparatus includes: an I/F unit and an imaging control unit that function as a communication unit that selectively performs communication with any one of a portable information terminal and a console which are plural control apparatuses that have different image processing capacities with respect to a radiographic image and respectively perform a control relating to capturing of the radiographic image; and an imaging control unit that functions as a selection unit that selects any one of plural imaging modes predetermined with respect to the capturing of the radiographic image according to the image processing capacity of the control apparatus that performs communication with the communication unit.Type: GrantFiled: September 25, 2019Date of Patent: June 1, 2021Assignee: FUJIFILM CorporationInventors: Yasufumi Oda, Jun Enomoto, Ryo Imamura, Takashi Tajima, Takeshi Koishi, Kentaro Noma, Takeshi Kuwabara, Tetsuya Tsuji, Hiroaki Yasuda, Haruyasu Nakatsugawa
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Patent number: 10924694Abstract: A radiographic imaging device includes: a radiation detector including plural pixels, each including a sensor portion and a switching element; a detection unit that detects a radiation irradiation start if an electrical signal caused by charges generated in the sensor portion satisfies a specific irradiation detection condition, and/or if an electrical signal caused by charges generated in a radiation sensor portion that is different from the sensor portion satisfies a specific irradiation detection condition; and a control unit that determines whether or not noise caused by external disturbance has occurred after the detection unit has detected the radiation irradiation start, and if the noise has occurred, that stops a current operation of the radiation detector, and causes the detection unit to perform detection.Type: GrantFiled: August 9, 2019Date of Patent: February 16, 2021Assignee: FUJIFILM CORPORATIONInventors: Takeshi Kuwabara, Yoshihiro Okada, Haruyasu Nakatsugawa, Naoyuki Nishino
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Patent number: 10765390Abstract: A control unit of a console performs a first correction process for generating a diagnosis image for a second radiographic image captured by a second radiation detector and generates the diagnosis image, using the second radiographic image subjected to the first correction process and a first radiographic image captured by a first radiation detector. The control unit performs a second correction process for deriving a quantitative value for the second radiographic image captured by the second radiation detector and derives bone density, using the second radiographic image subjected to the second correction process and the first radiographic image captured by the first radiation detector.Type: GrantFiled: September 13, 2018Date of Patent: September 8, 2020Assignee: FUJIFILM CORPORATIONInventors: Takashi Tajima, Takeshi Kuwabara
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Radiography system, radiography method, radiography program, and body thickness estimation apparatus
Patent number: 10709401Abstract: Provided are a radiography system, a radiography method, a radiography program, and a body thickness estimation apparatus that can estimate the body thickness of a subject using each of radiographic images generated by irradiation with radiations having different energy levels. A radiography system includes a radiography apparatus including two radiation detectors and a console including an estimation unit that estimates the body thickness of a subject on the basis of the ratio of pixel values in a region, which corresponds to a soft tissue of the subject and is a corresponding region of radiographic images generated by the two radiation detectors irradiated with radiations having different energy levels, and correspondence relationship information in which the ratio and the body thickness are associated with each other.Type: GrantFiled: May 16, 2018Date of Patent: July 14, 2020Assignee: FUJIFILM CORPORATIONInventors: Takeshi Kuwabara, Yasufumi Oda, Haruyasu Nakatsugawa -
Publication number: 20200015770Abstract: Disclosed is a technique capable of enhancing usability of a radiographic image capturing apparatus, system, control method of the radiographic image capturing apparatus and a non-transitory computer readable recording medium recorded with a control program, for a user. A radiographic image capturing apparatus includes: an I/F unit and an imaging control unit that function as a communication unit that selectively performs communication with any one of a portable information terminal and a console which are plural control apparatuses that have different image processing capacities with respect to a radiographic image and respectively perform a control relating to capturing of the radiographic image; and an imaging control unit that functions as a selection unit that selects any one of plural imaging modes predetermined with respect to the capturing of the radiographic image according to the image processing capacity of the control apparatus that performs communication with the communication unit.Type: ApplicationFiled: September 25, 2019Publication date: January 16, 2020Inventors: Yasufumi ODA, Jun Enomoto, Ryo Imamura, Takashi Tajima, Takeshi Koishi, Kentaro Noma, Takeshi Kuwabara, Tetsuya Tsuji, Hiroaki Yasuda, Harusayu Nakatsugawa
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Patent number: 10512440Abstract: A radiography system includes: a radiography apparatus including a first radiation detector and a second radiation detector which is provided so on a side of the first radiation detector from which the radiation is transmitted and emitted, and a grid that is configured to remove scattered radiation included in the radiation transmitted through a subject; and an acquisition unit that is configured to acquire, using the grid, a first radiographic image captured by the first radiation detector and a second radiographic image captured by the second radiation detector; and a removal unit that is configured to detect and remove a first grid image, which is an image of the grid, from the first radiographic image acquired by the acquisition unit, and to remove the image of the grid from the second radiographic image acquired by the acquisition unit, using the first grid image.Type: GrantFiled: July 21, 2017Date of Patent: December 24, 2019Assignee: FUJIFILM CORPORATIONInventor: Takeshi Kuwabara
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Patent number: 10506183Abstract: A radiographic imaging device includes: a radiation detector including plural pixels, each including a sensor portion and a switching element; a detection unit that detects a radiation irradiation start if an electrical signal caused by charges generated in the sensor portion satisfies a specific irradiation detection condition, and/or if an electrical signal caused by charges generated in a radiation sensor portion that is different from the sensor portion satisfies a specific irradiation detection condition; and a control unit that determines whether or not noise caused by external disturbance has occurred after the detection unit has detected the radiation irradiation start, and if the noise has occurred, that stops a current operation of the radiation detector, and causes the detection unit to perform detection.Type: GrantFiled: September 1, 2017Date of Patent: December 10, 2019Assignee: FUJIFILM CORPORATIONInventors: Takeshi Kuwabara, Yoshihiro Okada, Haruyasu Nakatsugawa, Naoyuki Nishino
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Publication number: 20190364232Abstract: A radiographic imaging device includes: a radiation detector including plural pixels, each including a sensor portion and a switching element; a detection unit that detects a radiation irradiation start if an electrical signal caused by charges generated in the sensor portion satisfies a specific irradiation detection condition, and/or if an electrical signal caused by charges generated in a radiation sensor portion that is different from the sensor portion satisfies a specific irradiation detection condition; and a control unit that determines whether or not noise caused by external disturbance has occurred after the detection unit has detected the radiation irradiation start, and if the noise has occurred, that stops a current operation of the radiation detector, and causes the detection unit to perform detection.Type: ApplicationFiled: August 9, 2019Publication date: November 28, 2019Inventors: Takeshi KUWABARA, Yoshihiro OKADA, Haruyasu NAKATSUGAWA, Naoyuki NISHINO
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Patent number: 10485506Abstract: Disclosed is a technique capable of enhancing usability of a radiographic image capturing apparatus, system, control method of the radiographic image capturing apparatus and a non-transitory computer readable recording medium recorded with a control program, for a user. A radiographic image capturing apparatus includes: an I/F unit and an imaging control unit that function as a communication unit that selectively performs communication with any one of a portable information terminal and a console which are plural control apparatuses that have different image processing capacities with respect to a radiographic image and respectively perform a control relating to capturing of the radiographic image; and an imaging control unit that functions as a selection unit that selects any one of plural imaging modes predetermined with respect to the capturing of the radiographic image according to the image processing capacity of the control apparatus that performs communication with the communication unit.Type: GrantFiled: April 17, 2018Date of Patent: November 26, 2019Assignee: FUJIFILM CorporationInventors: Yasufumi Oda, Jun Enomoto, Ryou Imamura, Takashi Tajima, Kentaro Noma, Takeshi Kuwabara, Tetsuya Tsuji, Hiroaki Yasuda, Haruyasu Nakatsugawa, Takeshi Koishi
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Publication number: 20190313994Abstract: An image processing apparatus includes: an acquisition unit that acquires a radiographic image generated by a radiation detector irradiated with radiation from a radiography apparatus including the radiation detector in which plural pixels, each of which includes a conversion element that generates a larger amount of charge as it is irradiated with a larger amount of radiation, are arranged; and a correction unit that corrects scattered ray components caused by scattered rays of the radiation included in the radiographic image on the basis of region information indicating a region of the radiation detector irradiated with radiation transmitted through a subject, using scattered ray correction data.Type: ApplicationFiled: April 8, 2019Publication date: October 17, 2019Applicant: FUJIFILM CorporationInventor: Takeshi KUWABARA
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Patent number: 10345459Abstract: A radiography apparatus includes: a first radiation detector that includes plural pixels accumulating charge corresponding to emitted radiation; a second radiation detector that is stacked on a side of the first radiation detector opposite to a side on which the radiation is incident and includes plural pixels accumulating charge corresponding to the emitted radiation; a first control unit that performs control for reading the charge accumulated in the pixels of the first radiation detector while the charge is accumulated in the pixels of the first radiation detector and the second radiation detector; and a second control unit that starts control for reading the charge accumulated in the pixels of the second radiation detector while the charge is accumulated in the pixels of the first radiation detector and the second radiation detector at a time different from a time when the first control unit starts the control.Type: GrantFiled: August 31, 2018Date of Patent: July 9, 2019Assignee: FUJIFILM CORPORATIONInventor: Takeshi Kuwabara
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Patent number: 10321887Abstract: In an image analysis device, an image analysis method, and a non-transitory computer-readable recording medium, it is determined whether a radiographic image is captured by rocking a rocking imaging grid. The image analysis device includes: a radiographic image acquisition section; a dosage data acquisition section that acquires dosage data indicating, in a time-series manner, a dosage of radiation rays exposed to a specific position in an imaging area in a specific period; and a determining section that determines whether the dosage data has a first feature indicating a dosage variation as a plurality of radiation absorbing bodies and a radiation transmitting body disposed between adjacent radiation absorbing bodies pass through a space between the specific position and a radiation source, and determines that the radiographic image corresponding to the dosage data determined to have the first feature is a rocking grid use image captured by rocking a rocking imaging grid.Type: GrantFiled: July 20, 2018Date of Patent: June 18, 2019Assignee: FUJIFILM CorporationInventors: Takashi Tajima, Jun Enomoto, Yasufumi Oda, Takeshi Kuwabara, Daiki Harada, Yuichi Hosoi, Haruyasu Nakatsugawa
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Publication number: 20190008472Abstract: A control unit of a console performs a first correction process for generating a diagnosis image for a second radiographic image captured by a second radiation detector and generates the diagnosis image, using the second radiographic image subjected to the first correction process and a first radiographic image captured by a first radiation detector. The control unit performs a second correction process for deriving a quantitative value for the second radiographic image captured by the second radiation detector and derives bone density, using the second radiographic image subjected to the second correction process and the first radiographic image captured by the first radiation detector.Type: ApplicationFiled: September 13, 2018Publication date: January 10, 2019Inventors: Takashi TAJIMA, Takeshi KUWABARA
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Publication number: 20190011576Abstract: A radiography apparatus includes: a first radiation detector that includes plural pixels accumulating charge corresponding to emitted radiation; a second radiation detector that is stacked on a side of the first radiation detector opposite to a side on which the radiation is incident and includes plural pixels accumulating charge corresponding to the emitted radiation; a first control unit that performs control for reading the charge accumulated in the pixels of the first radiation detector while the charge is accumulated in the pixels of the first radiation detector and the second radiation detector; and a second control unit that starts control for reading the charge accumulated in the pixels of the second radiation detector while the charge is accumulated in the pixels of the first radiation detector and the second radiation detector at a time different from a time when the first control unit starts the control.Type: ApplicationFiled: August 31, 2018Publication date: January 10, 2019Inventor: Takeshi KUWABARA
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Patent number: 10154825Abstract: The present disclosure provides an image processing device including: a scattered radiation correction data acquisition section that acquires scattered radiation correction data as a result of radiation being irradiated onto a radiographic imaging device that images a radiographic image; a pixel region acquisition section that acquires information indicating a size of an effective pixel region of the radiographic imaging device; an exposure range acquisition section that acquires information indicating an imaging exposure range of radiation for imaging an imaging subject with the radiographic imaging device; an image data acquisition section that acquires image data as a result of imaging a radiographic image of the imaging subject; and a correction section that corrects the image data acquired by the image data acquisition section using the scattered radiation correction data, in a case in which the imaging exposure range includes an area outside of the effective pixel region.Type: GrantFiled: February 23, 2016Date of Patent: December 18, 2018Assignee: FUJIFILM CORPORATIONInventors: Jun Enomoto, Takashi Tajima, Yasufumi Oda, Takeshi Kuwabara, Daiki Harada, Yuichi Hosoi, Haruyasu Nakatsugawa
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Publication number: 20180344280Abstract: In an image analysis device, an image analysis method, and a non-transitory computer-readable recording medium, it is determined whether a radiographic image is captured by rocking a rocking imaging grid. The image analysis device includes: a radiographic image acquisition section; a dosage data acquisition section that acquires dosage data indicating, in a time-series manner, a dosage of radiation rays exposed to a specific position in an imaging area in a specific period; and a determining section that determines whether the dosage data has a first feature indicating a dosage variation as a plurality of radiation absorbing bodies and a radiation transmitting body disposed between adjacent radiation absorbing bodies pass through a space between the specific position and a radiation source, and determines that the radiographic image corresponding to the dosage data determined to have the first feature is a rocking grid use image captured by rocking a rocking imaging grid.Type: ApplicationFiled: July 20, 2018Publication date: December 6, 2018Applicant: FUJIFILM CorporationInventors: Takashi TAJIMA, Jun ENOMOTO, Yasufumi ODA, Takeshi KUWABARA, Daiki HARADA, Yuichi HOSOI, Haruyasu NAKATSUGAWA
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RADIOGRAPHY SYSTEM, RADIOGRAPHY METHOD, RADIOGRAPHY PROGRAM, AND BODY THICKNESS ESTIMATION APPARATUS
Publication number: 20180333121Abstract: Provided are a radiography system, a radiography method, a radiography program, and a body thickness estimation apparatus that can estimate the body thickness of a subject using each of radiographic images generated by irradiation with radiations having different energy levels. A radiography system includes a radiography apparatus including two radiation detectors and a console including an estimation unit that estimates the body thickness of a subject on the basis of the ratio of pixel values in a region, which corresponds to a soft tissue of the subject and is a corresponding region of radiographic images generated by the two radiation detectors irradiated with radiations having different energy levels, and correspondence relationship information in which the ratio and the body thickness are associated with each other.Type: ApplicationFiled: May 16, 2018Publication date: November 22, 2018Inventors: Takeshi KUWABARA, Yasufumi ODA, Haruyasu NAKATSUGAWA -
Patent number: 10058301Abstract: In an image analysis device, an image analysis method, and a non-transitory computer-readable recording medium, it is determined whether a radiographic image is captured by rocking a rocking imaging grid. The image analysis device includes: a radiographic image acquisition section; a dosage data acquisition section that acquires dosage data indicating, in a time-series manner, a dosage of radiation rays exposed to a specific position in an imaging area in a specific period; and a determining section that determines whether the dosage data has a first feature indicating a dosage variation as a plurality of radiation absorbing bodies and a radiation transmitting body disposed between adjacent radiation absorbing bodies pass through a space between the specific position and a radiation source, and determines that the radiographic image corresponding to the dosage data determined to have the first feature is a rocking grid use image captured by rocking a rocking imaging grid.Type: GrantFiled: September 2, 2015Date of Patent: August 28, 2018Assignee: FUJIFILM CorporationInventors: Takashi Tajima, Jun Enomoto, Yasufumi Oda, Takeshi Kuwabara, Daiki Harada, Yuichi Hosoi, Haruyasu Nakatsugawa