Patents by Inventor Yohei Ishida

Yohei Ishida 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).

  • Publication number: 20140374608
    Abstract: A method of manufacturing a radiation detection apparatus, includes a bonding step of bonding, on a support substrate, a sensor substrate including a photoelectric converter in which a plurality of photoelectric conversion elements are arranged, by using a bonding layer including a passage which exhausts a gas between the support substrate and the sensor substrate, and a formation step of forming a scintillator layer on the photoelectric converter after the bonding step. The bonding layer has a heat resistance by which bonding between the support substrate and the sensor substrate by the bonding layer is maintained in the formation step.
    Type: Application
    Filed: June 16, 2014
    Publication date: December 25, 2014
    Inventors: Yoshito Sasaki, Satoshi Okada, Shoshiro Saruta, Kazumi Nagano, Yohei Ishida
  • Patent number: 8779369
    Abstract: A radiation detection apparatus comprising a sensor panel and a scintillator panel is provided. The scintillator panel including a substrate, a scintillator disposed on the substrate, and a scintillator protective film that has a first organic protective layer and an inorganic protective layer, and covers the scintillator. The scintillator protective film is located between the sensor panel and the scintillator. The first organic protective layer is located on a scintillator side from the inorganic protective layer. A surface on a sensor panel side of the scintillator is partially in contact with the inorganic protective layer.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: July 15, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoaki Ichimura, Satoshi Okada, Kazumi Nagano, Keiichi Nomura, Yohei Ishida, Yoshito Sasaki, Akiya Nakayama
  • Patent number: 8779364
    Abstract: A method of manufacturing a scintillator panel including a scintillator layer which converts a radiation into light, includes a growing step of growing a scintillator including a plurality of columnar crystals on a first substrate; a fixing step of fixing a second substrate to a surface of the scintillator that is opposite to a surface on a side of the first substrate; a separation step of separating the first substrate from the scintillator; and a removal step of removing, from the scintillator, a portion of a predetermined thickness from an exposed surface of the scintillator that is exposed in the separation step, to form the scintillator layer.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: July 15, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazumi Nagano, Satoshi Okada, Keiichi Nomura, Yohei Ishida, Tomoaki Ichimura, Yoshito Sasaki
  • Publication number: 20140117244
    Abstract: A scintillator has a two-dimensional array of a plurality of columnar crystals which converts radiation into light, and a covering portion covering the two-dimensional array. The covering portion includes connecting portions configured to partially connect the columnar crystals while partially forming cavities in gaps between the columnar crystals in the two-dimensional array.
    Type: Application
    Filed: October 18, 2013
    Publication date: May 1, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tomoaki Ichimura, Satoshi Okada, Yohei Ishida, Akiya Nakayama
  • Patent number: 8704185
    Abstract: A radiation detection apparatus comprising: a sensor panel including a photoelectric conversion region and an electrically conductive pattern that is electrically connected to the photoelectric conversion region; a scintillator layer disposed over the photoelectric conversion region of the sensor panel; a wiring member including a portion overlapping with the electrically conductive pattern and electrically connected to the electrically conductive pattern and; and a protective film covering the scintillator layer and the portion of the wiring member that overlaps with the electrically conductive pattern is provided. A region of the protective film that covers the wiring member includes a portion that is press-bonded to the sensor panel.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: April 22, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yohei Ishida, Satoshi Okada, Kazumi Nagano, Keiichi Nomura, Yoshito Sasaki
  • Publication number: 20140103216
    Abstract: The present invention provides a radiation detection apparatus including a first substrate member, a second substrate member, and a sealing portion configured to bond an edge portion of the first substrate member to an edge portion of the substrate member, one of the first substrate member and the second substrate member being a sensor panel including photoelectric conversion elements and the other being a scintillator panel including a scintillator layer, and the sealing portion including a first sealing resin having a first elastic modulus, a second sealing resin having a second elastic modulus lower than the first elastic modulus, a stress reduction portion configured to reduce a stress that acts on the first sealing resin and the second sealing resin and having a third elastic modulus lower than the second elastic modulus.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 17, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yoshito Sasaki, Satoshi Okada, Yohei Ishida, Tomoaki Ichimura, Masato Inoue, Takamasa Ishii
  • Publication number: 20140091225
    Abstract: The present invention provides a radiation imaging apparatus including a sensor substrate on which photoelectric conversion elements are arranged, a scintillator base on which a scintillator layer for converting radiation into light with a wavelength detectable by the photoelectric conversion elements is arranged, and which is adhered to the sensor substrate so that the scintillator layer is arranged between the sensor substrate and the scintillator base, and a sealing member configured to fix an edge portion of the scintillator base and the sensor substrate, and spaced apart from the scintillator layer, wherein the scintillator base includes a bent portion for reducing a stress that acts on the sealing member in a region between an outer edge of a region in which the scintillator layer is arranged and the edge portion fixed by the sealing member.
    Type: Application
    Filed: September 24, 2013
    Publication date: April 3, 2014
    Applicant: Canon Kabushiki Kaisha
    Inventors: Yoshito Sasaki, Satoshi Okada, Yohei Ishida, Akiya Nakayama
  • Patent number: 8686361
    Abstract: A method for manufacturing a radiation detection apparatus is provided. The method comprising: forming a set of columnar crystals capable of converting radiation into visible light on a base; forming a supporting layer that supports the set of columnar crystals; separating the set of columnar crystals supported by the supporting layer from the base; preparing a sensor panel having a photoelectric conversion unit; and adhering a surface of the set of columnar crystals, that surface having been in contact with the base, to the sensor panel using an adhesive material, such that the set of columnar crystals covers the photoelectric conversion unit.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: April 1, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keiichi Nomura, Satoshi Okada, Kazumi Nagano, Yohei Ishida, Tomoaki Ichimura, Yoshito Sasaki
  • Publication number: 20140061485
    Abstract: A radiation imaging apparatus, comprising a sensor panel including a sensor array, a scintillator layer disposed on the sensor panel so as to cover the sensor array, and a housing having a side wall facing a side surface of the sensor panel and containing the sensor panel and the scintillator layer, wherein the scintillator layer protrudes, at at least one side of the sensor panel, from the side toward the side wall.
    Type: Application
    Filed: August 26, 2013
    Publication date: March 6, 2014
    Inventors: Kazumi Nagano, Satoshi Okada, Keiichi Nomura, Yohei Ishida
  • Patent number: 8653465
    Abstract: A radiation detection apparatus including: a sensor panel having a first face on which a pixel region is formed and a second face that is opposite the first face and including a connecting portion at one or more sides; a scintillator layer formed over the pixel region; and a protective film covering the scintillator layer and a portion of the sensor panel is provided. The protective film has a hot-pressed part. At the side of the sensor panel where the connecting portion is formed, the hot-pressed part is formed in a portion of the protective film covering the first face. At other sides of the sensor panel, the hot-pressed part is formed in at least one of a portion of the protective film covering a lateral face of the sensor panel and the second face.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: February 18, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazumi Nagano, Satoshi Okada, Keiichi Nomura, Yohei Ishida, Yoshito Sasaki
  • Patent number: 8648312
    Abstract: A method of manufacturing a radiation detection apparatus is provided. The apparatus comprises a first scintillator layer, a second scintillator layer, and a sensor panel that detects light emitted by the first scintillator layer and the second scintillator layer. The method comprises preparing a sensor unit having the sensor panel and the first scintillator layer which includes a set of columnar crystals formed on the sensor panel, and a scintillator panel having a scintillator substrate and the second scintillator layer which includes a set of columnar crystals formed on the scintillator substrate, and fixing the scintillator panel to the sensor panel such that the first scintillator layer and the second scintillator layer face each other.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: February 11, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoaki Ichimura, Satoshi Okada, Kazumi Nagano, Keiichi Nomura, Yohei Ishida, Yoshito Sasaki
  • Publication number: 20140034836
    Abstract: A radiation detection apparatus includes a sensor panel configured to detect light; and a scintillator layer arranged on the sensor panel. The scintillator layer has a scintillator configured to convert radiation into light of a wavelength that is detectable by the sensor panel. The scintillator layer also has particles that have a property of generating a bubble and expanding so as to weaken adhesive force between the sensor panel and the scintillator layer. The scintillator layer also a resin that holds the scintillator and the particles so as to be mixed together. The scintillator layer is adhered to the sensor panel with use of the resin.
    Type: Application
    Filed: July 18, 2013
    Publication date: February 6, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Taiki Takei, Masato Inoue, Shinichi Takeda, Satoru Sawada, Takamasa Ishii, Kota Nishibe, Shoshiro Saruta, Kazumi Nagano, Satoshi Okada, Yohei Ishida
  • Publication number: 20140008749
    Abstract: A method of manufacturing a radiation detection apparatus is provided. On a sensor substrate on which a pixel array is formed, a scintillator layer that covers the pixel array, a sealing layer that covers a side face of the scintillator layer, and a protection layer that covers an upper face of the scintillator layer and an upper face of the sealing layer are formed. The sensor substrate, the sealing layer, and the protection layer along a side of the pixel array are cut such that a cut surface of the sensor substrate, a cut surface of the sealing layer, and a cut surface of the protection layer are arranged on the same plane.
    Type: Application
    Filed: June 26, 2013
    Publication date: January 9, 2014
    Inventors: Keiichi Nomura, Kazumi Nagano, Satoshi Okada, Yohei Ishida, Shoshiro Saruta, Yoshito Sasaki, Tomoaki Ichimura
  • Publication number: 20130341516
    Abstract: A radiation detection apparatus comprises a sensor panel including a plurality of sensor units which detect radiation and are arrayed, each of the plurality of sensor units comprising a pixel array including a plurality of pixels which detect light and are two-dimensionally arranged, a scintillator layer which converts radiation into light, and a first scintillator protective layer disposed to cover the scintillator layer, and the radiation detection apparatus further comprising a second scintillator protective layer disposed to cover the plurality of sensor units.
    Type: Application
    Filed: May 16, 2013
    Publication date: December 26, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yohei Ishida, Satoshi Okada, Kazumi Nagano, Shoshiro Saruta, Keiichi Nomura
  • Publication number: 20130308755
    Abstract: A radiation detection apparatus comprising a sensor panel which includes a sensor array including two-dimensionally arrayed photoelectric conversion elements. A scintillator layer is arranged on the sensor panel. A scintillator protection member covers the scintillator layer upon exposing a first side surface of the scintillator layer. A housing surrounds the scintillator layer and the sensor panel. The housing includes a sealing portion to which a side surface of the sensor panel adjacent to the first side surface and the first side surface are joined by a resin.
    Type: Application
    Filed: February 1, 2012
    Publication date: November 21, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yohei Ishida, Satoshi Okada, Kazumi Nagano, Keiichi Nomura, Tomoaki Ichimura, Yoshito Sasaki
  • Publication number: 20130026377
    Abstract: A method of manufacturing a radiation detection apparatus is provided. The apparatus comprises a first scintillator layer, a second scintillator layer, and a sensor panel that detects light emitted by the first scintillator layer and the second scintillator layer. The method comprises preparing a sensor unit having the sensor panel and the first scintillator layer which includes a set of columnar crystals formed on the sensor panel, and a scintillator panel having a scintillator substrate and the second scintillator layer which includes a set of columnar crystals formed on the scintillator substrate, and fixing the scintillator panel to the sensor panel such that the first scintillator layer and the second scintillator layer face each other.
    Type: Application
    Filed: June 21, 2012
    Publication date: January 31, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tomoaki Ichimura, Satoshi Okada, Kazumi Nagano, Keiichi Nomura, Yohei Ishida, Yoshito Sasaki
  • Publication number: 20120223240
    Abstract: A radiation detection apparatus comprising a sensor panel and a scintillator panel is provided. The scintillator panel including a substrate, a scintillator disposed on the substrate, and a scintillator protective film that has a first organic protective layer and an inorganic protective layer, and covers the scintillator. The scintillator protective film is located between the sensor panel and the scintillator. The first organic protective layer is located on a scintillator side from the inorganic protective layer. A surface on a sensor panel side of the scintillator is partially in contact with the inorganic protective layer.
    Type: Application
    Filed: February 3, 2012
    Publication date: September 6, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tomoaki Ichimura, Satoshi Okada, Kazumi Nagano, Keiichi Nomura, Yohei Ishida, Yoshito Sasaki, Akiya Nakayama
  • Publication number: 20120219115
    Abstract: A radiation imaging apparatus includes a sensor which is placed in an internal space in the chassis and detects radiation. The apparatus includes a positioning mechanism which moves the sensor in the internal space to determine a position where radiation is detected, so as to change an area where radiation imaging is performed by detecting radiation using the sensor.
    Type: Application
    Filed: February 13, 2012
    Publication date: August 30, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Satoshi Okada, Kazumi Nagano, Keiichi Nomura, Yohei Ishida, Yoshito Sasaki, Tomoaki Ichimura
  • Publication number: 20120187298
    Abstract: A scintillator includes a scintillator layer having a first surface and second surface which are surfaces opposite to each other, wherein the scintillator layer includes a plurality of columnar portions, each columnar portion including a columnar crystal for converting a radiation into light, and the columnar crystal of each columnar portion having a diameter which increases from an intermediate portion between the first surface and the second surface toward the first surface and the second surface.
    Type: Application
    Filed: January 12, 2012
    Publication date: July 26, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yoshito Sasaki, Satoshi Okada, Kazumi Nagano, Keiichi Nomura, Yohei Ishida, Tomoaki Ichimura
  • Publication number: 20120187299
    Abstract: A method of manufacturing a scintillator panel including a scintillator layer which converts a radiation into light, includes a growing step of growing a scintillator including a plurality of columnar crystals on a first substrate; a fixing step of fixing a second substrate to a surface of the scintillator that is opposite to a surface on a side of the first substrate; a separation step of separating the first substrate from the scintillator; and a removal step of removing, from the scintillator, a portion of a predetermined thickness from an exposed surface of the scintillator that is exposed in the separation step, to form the scintillator layer.
    Type: Application
    Filed: January 17, 2012
    Publication date: July 26, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kazumi Nagano, Satoshi Okada, Keiichi Nomura, Yohei Ishida, Tomoaki Ichimura, Yoshito Sasaki