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).

  • Patent number: 11185303
    Abstract: 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: Grant
    Filed: April 8, 2019
    Date of Patent: November 30, 2021
    Assignee: FUJIFILM Corporation
    Inventor: Takeshi Kuwabara
  • Publication number: 20210254390
    Abstract: 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: Application
    Filed: February 3, 2021
    Publication date: August 19, 2021
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Takeshi KUWABARA, Ryu MIYASHIRO
  • Patent number: 11020080
    Abstract: 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: Grant
    Filed: September 25, 2019
    Date of Patent: June 1, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Yasufumi Oda, Jun Enomoto, Ryo Imamura, Takashi Tajima, Takeshi Koishi, Kentaro Noma, Takeshi Kuwabara, Tetsuya Tsuji, Hiroaki Yasuda, Haruyasu Nakatsugawa
  • Patent number: 10924694
    Abstract: 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: Grant
    Filed: August 9, 2019
    Date of Patent: February 16, 2021
    Assignee: FUJIFILM CORPORATION
    Inventors: Takeshi Kuwabara, Yoshihiro Okada, Haruyasu Nakatsugawa, Naoyuki Nishino
  • Patent number: 10765390
    Abstract: 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: Grant
    Filed: September 13, 2018
    Date of Patent: September 8, 2020
    Assignee: FUJIFILM CORPORATION
    Inventors: Takashi Tajima, Takeshi Kuwabara
  • Patent number: 10709401
    Abstract: 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: Grant
    Filed: May 16, 2018
    Date of Patent: July 14, 2020
    Assignee: FUJIFILM CORPORATION
    Inventors: Takeshi Kuwabara, Yasufumi Oda, Haruyasu Nakatsugawa
  • Publication number: 20200015770
    Abstract: 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: Application
    Filed: September 25, 2019
    Publication date: January 16, 2020
    Inventors: Yasufumi ODA, Jun Enomoto, Ryo Imamura, Takashi Tajima, Takeshi Koishi, Kentaro Noma, Takeshi Kuwabara, Tetsuya Tsuji, Hiroaki Yasuda, Harusayu Nakatsugawa
  • Patent number: 10512440
    Abstract: 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: Grant
    Filed: July 21, 2017
    Date of Patent: December 24, 2019
    Assignee: FUJIFILM CORPORATION
    Inventor: Takeshi Kuwabara
  • Patent number: 10506183
    Abstract: 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: Grant
    Filed: September 1, 2017
    Date of Patent: December 10, 2019
    Assignee: FUJIFILM CORPORATION
    Inventors: Takeshi Kuwabara, Yoshihiro Okada, Haruyasu Nakatsugawa, Naoyuki Nishino
  • Publication number: 20190364232
    Abstract: 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: Application
    Filed: August 9, 2019
    Publication date: November 28, 2019
    Inventors: Takeshi KUWABARA, Yoshihiro OKADA, Haruyasu NAKATSUGAWA, Naoyuki NISHINO
  • Patent number: 10485506
    Abstract: 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: Grant
    Filed: April 17, 2018
    Date of Patent: November 26, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Yasufumi Oda, Jun Enomoto, Ryou Imamura, Takashi Tajima, Kentaro Noma, Takeshi Kuwabara, Tetsuya Tsuji, Hiroaki Yasuda, Haruyasu Nakatsugawa, Takeshi Koishi
  • Publication number: 20190313994
    Abstract: 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: Application
    Filed: April 8, 2019
    Publication date: October 17, 2019
    Applicant: FUJIFILM Corporation
    Inventor: Takeshi KUWABARA
  • Patent number: 10345459
    Abstract: 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: Grant
    Filed: August 31, 2018
    Date of Patent: July 9, 2019
    Assignee: FUJIFILM CORPORATION
    Inventor: Takeshi Kuwabara
  • Patent number: 10321887
    Abstract: 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: Grant
    Filed: July 20, 2018
    Date of Patent: June 18, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Tajima, Jun Enomoto, Yasufumi Oda, Takeshi Kuwabara, Daiki Harada, Yuichi Hosoi, Haruyasu Nakatsugawa
  • Publication number: 20190008472
    Abstract: 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: Application
    Filed: September 13, 2018
    Publication date: January 10, 2019
    Inventors: Takashi TAJIMA, Takeshi KUWABARA
  • Publication number: 20190011576
    Abstract: 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: Application
    Filed: August 31, 2018
    Publication date: January 10, 2019
    Inventor: Takeshi KUWABARA
  • Patent number: 10154825
    Abstract: 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: Grant
    Filed: February 23, 2016
    Date of Patent: December 18, 2018
    Assignee: FUJIFILM CORPORATION
    Inventors: Jun Enomoto, Takashi Tajima, Yasufumi Oda, Takeshi Kuwabara, Daiki Harada, Yuichi Hosoi, Haruyasu Nakatsugawa
  • Publication number: 20180344280
    Abstract: 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: Application
    Filed: July 20, 2018
    Publication date: December 6, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Takashi TAJIMA, Jun ENOMOTO, Yasufumi ODA, Takeshi KUWABARA, Daiki HARADA, Yuichi HOSOI, Haruyasu NAKATSUGAWA
  • Publication number: 20180333121
    Abstract: 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: Application
    Filed: May 16, 2018
    Publication date: November 22, 2018
    Inventors: Takeshi KUWABARA, Yasufumi ODA, Haruyasu NAKATSUGAWA
  • Patent number: 10058301
    Abstract: 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: Grant
    Filed: September 2, 2015
    Date of Patent: August 28, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Tajima, Jun Enomoto, Yasufumi Oda, Takeshi Kuwabara, Daiki Harada, Yuichi Hosoi, Haruyasu Nakatsugawa