Patents by Inventor Hajime Nakata

Hajime Nakata 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: 8838207
    Abstract: In a radiographic image capturing apparatus, an object to be examined is compressed and secured between a compression plate and an image capturing base, at a position off-center from a central position of the image capturing base near a subject in a direction along the subject. An opening is defined in the compression plate so as to confront the object to be examined in the off-center position. The radiation source irradiates the object to be examined as well as the opening with radiation from a central angle of the radiation source, which is aligned with a vertical axis of the image capturing base, and which passes through the central position from a predetermined angle that is angularly spaced from the central angle about the central position.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: September 16, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Hiroki Nakayama, Hajime Nakata, Naoyuki Okada, Takao Yoshida
  • Patent number: 8744552
    Abstract: A biopsy apparatus includes a biopsy region positional information calculator for calculating a three-dimensional position of a biopsy region, a biopsy needle moving mechanism for moving a biopsy needle along three axes and/or turning the biopsy needle obliquely to an object to be examined, a biopsy needle positional information calculator for calculating a three-dimensional position of the biopsy needle, and a traveled distance calculator for calculating a distance over which the biopsy needle moves with respect to the biopsy region based on the three-dimensional position of the biopsy needle and the three-dimensional position of the biopsy region.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: June 3, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Hayato Akuzawa, Hajime Nakata, Yousuke Tsukamizu
  • Patent number: 8684948
    Abstract: A biopsy apparatus has a biopsy needle, which faces a radiation reception surface of a radiation detector and is held obliquely to the radiation reception surface by a biopsy needle holding mechanism. The biopsy apparatus includes a radiographic image capturing apparatus for capturing two radiographic images. One of the two radiographic images is produced according to a scout image capturing mode or a stereographic image capturing mode, and the other is produced according to the stereographic image capturing mode.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: April 1, 2014
    Assignee: FUJIFILM Corporation
    Inventor: Hajime Nakata
  • Patent number: 8467495
    Abstract: In a radiographic image capturing apparatus, a biopsy region positional information calculator calculates a three-dimensional position of a biopsy region in an object to be examined based on two radiographic images which are acquired in a stereographic image capturing process, an irradiated field calculator calculates a new irradiated field covering the biopsy region based on the calculated three-dimensional position of the biopsy region and two angles at which a radiation source is disposed in the stereographic image capturing process, and a collimator controller controls a collimator to change the irradiated field of the radiation to the new irradiated field in a next stereographic image capturing process.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: June 18, 2013
    Assignee: Fujifilm Corporation
    Inventors: Naoyuki Okada, Hajime Nakata, Hiroki Nakayama, Takao Yoshida
  • Patent number: 8454530
    Abstract: A biopsy apparatus has a biopsy needle, which faces a radiation reception surface of a radiation detector and is held obliquely to the radiation reception surface by a biopsy needle holding mechanism. The biopsy apparatus includes a radiographic image capturing apparatus for capturing two radiographic images. One of the two radiographic images is produced according to a scout image capturing mode or a stereographic image capturing mode, and the other is produced according to the stereographic image capturing mode.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: June 4, 2013
    Assignee: FUJIFILM Corporation
    Inventor: Hajime Nakata
  • Publication number: 20120289824
    Abstract: A biopsy apparatus has a biopsy needle, which faces a radiation reception surface of a radiation detector and is held obliquely to the radiation reception surface by a biopsy needle holding mechanism. The biopsy apparatus includes a radiographic image capturing apparatus for capturing two radiographic images. One of the two radiographic images is produced according to a scout image capturing mode or a stereographic image capturing mode, and the other is produced according to the stereographic image capturing mode.
    Type: Application
    Filed: July 24, 2012
    Publication date: November 15, 2012
    Applicant: FUJIFILM Corporation
    Inventor: Hajime NAKATA
  • Patent number: 8294113
    Abstract: An image detecting device includes an image detector, a temperature regulation controller, an image information output detector, and a timer, wherein the temperature regulation controller stops or relaxes the temperature regulation control operation on the image detector based on the image information output detection signal input thereto from the image information output detector, and resumes or stops relaxing the temperature regulation control operation on the image detector when the timer has measured a preset period of time after the temperature regulation control operation has been stopped or relaxed.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: October 23, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Hajime Nakata, Kuniaki Miyako, Kazuo Hakamata, Yasunori Ohta
  • Patent number: 8222612
    Abstract: The present invention relates to a radiation image capturing apparatus, and includes a radiation image information detector for detecting radiation image information of a subject, a casing containing the radiation image information detector, a reading circuit for reading the radiation image information from the radiation image information detector, and a heat release unit for fastening the reading circuit and releasing heat generated by the reading circuit to the casing.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: July 17, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Yasunori Ohta, Kazuo Hakamata, Kuniaki Miyako, Hajime Nakata, Yuto Tanaka
  • Publication number: 20110118625
    Abstract: A biopsy apparatus includes a biopsy region positional information calculator for calculating a three-dimensional position of a biopsy region, a biopsy needle moving mechanism for moving a biopsy needle along three axes and/or turning the biopsy needle obliquely to an object to be examined, a biopsy needle positional information calculator for calculating a three-dimensional position of the biopsy needle, and a traveled distance calculator for calculating a distance over which the biopsy needle moves with respect to the biopsy region based on the three-dimensional position of the biopsy needle and the three-dimensional position of the biopsy region.
    Type: Application
    Filed: November 16, 2010
    Publication date: May 19, 2011
    Applicant: FUJIFILM Corporation
    Inventors: Hayato Akuzawa, Hajime Nakata, Yousuke Tsukamizu
  • Publication number: 20110075791
    Abstract: A radiographic image capturing apparatus includes a radiation source that outputs radiation, a radiation detector for detecting the radiation and converting such radiation into a radiographic image, and a reference point, which is disposed in a removable manner between the radiation source and the radiation detector. The reference point is disposed at the position of a center of rotation of the radiation source, which is set between the radiation source and the radiation detector. By rotating the radiation source about the position of the center of rotation, the radiation source applies radiation with respect to the reference point from at least two different angles.
    Type: Application
    Filed: September 7, 2010
    Publication date: March 31, 2011
    Applicant: FUJIFILM Corporation
    Inventors: Hiroki Nakayama, Hajime Nakata, Naoyuki Okada, Takao Yoshida
  • Publication number: 20110075799
    Abstract: In a radiographic image capturing apparatus, a biopsy region positional information calculator calculates a three-dimensional position of a biopsy region in an object to be examined based on two radiographic images which are acquired in a stereographic image capturing process, an irradiated field calculator calculates a new irradiated field covering the biopsy region based on the calculated three-dimensional position of the biopsy region and two angles at which a radiation source is disposed in the stereographic image capturing process, and a collimator controller controls a collimator to change the irradiated field of the radiation to the new irradiated field in a next stereographic image capturing process.
    Type: Application
    Filed: September 28, 2010
    Publication date: March 31, 2011
    Applicant: FUJIFILM Corporation
    Inventors: Naoyuki Okada, Hajime Nakata, Hiroki Nakayama, Takao Yoshida
  • Patent number: 7902514
    Abstract: An image detecting device (radiation solid-state detecting device) including an image detector (sensor substrate) for recording an image and outputting the recorded image as image information; a temperature regulation control unit for performing a temperature regulation control operation to adjust the image detector to a predetermined temperature; and an image information output detecting unit (timing control signal detector) for detecting the output of the image information from the image detector, and outputting the detected output as an image information output detection signal to the temperature regulation control unit, wherein the temperature regulation control unit halts the temperature regulation control operation on the image detector based on the image information output detection signal that is input thereto.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: March 8, 2011
    Assignee: Fujifilm Corporation
    Inventors: Kuniaki Miyako, Hajime Nakata, Kazuo Hakamata, Yasunori Ohta
  • Patent number: 7897933
    Abstract: A radiation image capturing apparatus includes a cooling mechanism for causing cooling medium to flow from a rear surface side to a radiation detector to a front surface side of radiation detector through a narrow space formed between an end of the radiation detector and a casing for housing the radiation detector. It is therefore possible to cool the narrow space, as well as regions in the vicinity of the narrow space, with the cooling medium and to discharge the cooling medium from the front surface side of the radiation detector.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: March 1, 2011
    Assignee: Fujifilm Corporation
    Inventors: Kuniaki Miyako, Hajime Nakata, Kazuo Hakamata, Yasunori Ohta
  • Patent number: 7893403
    Abstract: The invention relates to a radiation image capturing apparatus that includes a signal reading circuit for reading an image signal from a sensor substrate. The signal reading circuit includes a charge detecting circuit and a temperature sensor for detecting the temperature of the charge detecting circuit, and controls the gain of a variable gain amplifier of the charge detecting circuit based on the detected temperature.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: February 22, 2011
    Assignee: Fujifilm Corporation
    Inventors: Kuniaki Miyako, Hajime Nakata, Kazuo Hakamata, Yasunori Ohta
  • Publication number: 20110021947
    Abstract: In a radiographic image capturing apparatus, an object to be examined is compressed and secured between a compression plate and an image capturing base, at a position off-center from a central position of the image capturing base near a subject in a direction along the subject. An opening is defined in the compression plate so as to confront the object to be examined in the off-center position. The radiation source irradiates the object to be examined as well as the opening with radiation from a central angle of the radiation source, which is aligned with a vertical axis of the image capturing base, and which passes through the central position from a predetermined angle that is angularly spaced from the central angle about the central position.
    Type: Application
    Filed: July 21, 2010
    Publication date: January 27, 2011
    Applicant: FUJIFILM Corporation
    Inventors: Hiroki NAKAYAMA, Hajime NAKATA, Naoyuki OKADA, Takao YOSHIDA
  • Patent number: 7876876
    Abstract: A radiation image capturing apparatus includes a housing for housing a radiation detector. The housing has a wall inclined with respect to a detection surface of the radiation detector, and the wall defines a space inclined with respect to the detection surface. The space allows heat transfer medium such as air of relatively high temperatures (higher than that of outside air, for example) to rise along a slope defined by the space. If the region around the detection surface is heated to high temperatures, airflow is generated within the space, forcing the relatively high-temperature heat transfer medium away from the vicinity of the radiation detector, thereby allowing the whole radiation detector to be cooled in a uniform manner.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: January 25, 2011
    Assignee: Fujifilm Corporation
    Inventors: Yasunori Ohta, Kuniaki Miyako, Kazuo Hakamata, Hajime Nakata
  • Patent number: 7839968
    Abstract: An image capturing base that contains a radiation detector includes a housing having a slit serving as an air inlet port formed in the front end side of the housing, which is to be located adjacent to the chest wall of a subject, and a slit serving as an air outlet port formed in the rear end side of the housing adjacent to a pivot shaft. A fan forces air to flow into the housing through the slit, along a detection surface of the radiation detector in a direction from the front end side toward the rear end side, and out of the housing through the slit.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: November 23, 2010
    Assignee: Fujifilm Corporation
    Inventors: Kuniaki Miyako, Hajime Nakata, Kazuo Hakamata, Yasunori Ohta
  • Patent number: 7834325
    Abstract: Amplifiers are mounted on flexible boards connected to a solid-state detector. A first temperature adjustment member is disposed near one of the surfaces of the amplifiers and the flexible boards, and a second temperature adjustment member is disposed near the other surface of the flexible boards. The first temperature adjustment member adjusts the temperature of the amplifiers themselves, and prevents heat from being transferred from the one of the surfaces of the flexible boards to the solid-state detector. The second temperature adjustment member prevents heat from being transferred from the other surface of the flexible boards to the solid-state detector.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: November 16, 2010
    Assignee: FUJIFILM Corporation
    Inventor: Hajime Nakata
  • Publication number: 20100249648
    Abstract: A biopsy apparatus has a biopsy needle, which faces a radiation reception surface of a radiation detector and is held obliquely to the radiation reception surface by a biopsy needle holding mechanism. The biopsy apparatus includes a radiographic image capturing apparatus for capturing two radiographic images. One of the two radiographic images is produced according to a scout image capturing mode or a stereographic image capturing mode, and the other is produced according to the stereographic image capturing mode.
    Type: Application
    Filed: March 31, 2010
    Publication date: September 30, 2010
    Applicant: FUJIFILM CORPORATION
    Inventor: Hajime NAKATA
  • Patent number: D638124
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: May 17, 2011
    Assignee: Fujifilm Corporation
    Inventors: Katsumi Hirabayashi, Hajime Nakata