Patents by Inventor Kazumi Nagano

Kazumi Nagano 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: 20120145905
    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: Application
    Filed: October 31, 2011
    Publication date: June 14, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Keiichi Nomura, Satoshi Okada, Kazumi Nagano, Yohei Ishida, Tomoaki Ichimura, Yoshito Sasaki
  • Patent number: 8115177
    Abstract: A radiation detection apparatus has a sensor panel including a photoelectric conversion unit with a plurality of photoelectric conversion elements over a substrate, a wavelength converter, disposed over the photoelectric conversion unit of the sensor panel, for converting a radiation into light detectable by the photoelectric conversion element, a plane shaped light emitting body for emitting light to the photoelectric conversion unit of the sensor panel, disposed over the wavelength converter, and a protective layer disposed on the plane shaped light emitting body.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: February 14, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinichi Takeda, Yoshihiro Ogawa, Satoshi Okada, Masato Inoue, Kazumi Nagano, Keiichi Nomura, Satoru Sawada
  • Publication number: 20110309258
    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: Application
    Filed: May 16, 2011
    Publication date: December 22, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yohei Ishida, Satoshi Okada, Kazumi Nagano, Keiichi Nomura, Yoshito Sasaki
  • Publication number: 20110291018
    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: Application
    Filed: April 21, 2011
    Publication date: December 1, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kazumi Nagano, Satoshi Okada, Keiichi Nomura, Yohei Ishida, Yoshito Sasaki
  • Publication number: 20110198505
    Abstract: A radiation detector includes a sensor panel including a photodetector and peripheral circuitry, the photodetector includes a two-dimensional array of photoelectric conversion elements arranged on a substrate, the peripheral circuitry is electrically connected to the photoelectric conversion elements and is disposed on the periphery of the photodetector; a scintillator layer is disposed on the photodetector of the sensor panel, the scintillator layer converts radiation into light that is detectable by the photoelectric conversion elements; a scintillator protection member covers the scintillator layer; and a sealing resin seals the scintillator layer, the sealing resin is disposed between the sensor panel and the scintillator protection member on the periphery of the scintillator layer; the sealing resin is disposed on top of the peripheral circuitry; and particles containing a radiation-absorbing material are dispersed in the sealing resin.
    Type: Application
    Filed: February 11, 2011
    Publication date: August 18, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yohei Ishida, Satoshi Okada, Kazumi Nagano, Keiichi Nomura, Yoshito Sasaki
  • Publication number: 20110155917
    Abstract: A scintillator panel includes a substrate and a scintillator layer. The substrate includes a first plate having a surface provided with irregularities, and a flat second plate fixed to the first plate in a confronting relation to the irregularities of the first plate. The scintillator layer is disposed on a surface of the second plate on the side oppositely away from the first plate.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 30, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Keiichi Nomura, Satoshi Okada, Kazumi Nagano, Yohei Ishida
  • Publication number: 20110147602
    Abstract: A radiographic imaging apparatus includes a sensor panel having an effective pixel region and a peripheral region surrounding the effective pixel region; a scintillator layer disposed on the effective pixel region and the peripheral region of the sensor panel; and a scintillator protecting layer disposed on the scintillator layer. The scintillator layer includes a plurality of columnar crystals disposed on the effective pixel region, a plurality of columnar crystals disposed on the peripheral region, and a resin disposed between the plurality of the columnar crystals on the peripheral region and surrounding the plurality of the columnar crystals on the effective pixel region. The plurality of the columnar crystals on the effective pixel region is enclosed by the sensor panel, the scintillator layer, and the resin.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 23, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yohei Ishida, Satoshi Okada, Kazumi Nagano, Masato Inoue, Shinichi Takeda, Keiichi Nomura, Satoru Sawada
  • Patent number: 7952058
    Abstract: A radiation detection apparatus to detect radiation. A substrate (1) has a conversion element on a first surface. The conversion element is configured to convert radiation into electric charges. A readout circuit is connected to a first region. The first region includes a first edge of the first surface. A driving circuit is connected to a second region other than the first region. The second region includes a second edge of the first surface. A light source (4) is arranged on a second surface side which faces the first surface. The light source (4) is arranged so as to face any regions of the second surface side except the first region.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: May 31, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keiichi Nomura, Yoshihiro Ogawa, Satoshi Okada, Masato Inoue, Shinichi Takeda, Kazumi Nagano, Satoru Sawada
  • Publication number: 20110073750
    Abstract: An image pickup apparatus includes an insulating substrate, and a plurality of pixels each including a conversion element configured to convert incident light or radiation into a charge and also including a switch element configured to transfer an electric signal corresponding to the charge generated by the conversion element. Gate wiring is configured to drive the switch element to transfer the electric signal through signal wiring. The plurality of pixels, the signal wiring, and the gate wiring are disposed on one surface of the insulating substrate. The insulating substrate has vias that provide electrical connections between the one surface and an opposite surface of the insulating substrate.
    Type: Application
    Filed: September 16, 2010
    Publication date: March 31, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kazumi Nagano, Satoshi Okada, Masato Inoue, Shinichi Takeda, Keiichi Nomura, Satoru Sawada, Yohei Ishida, Akiya Nakayama
  • Patent number: 7893405
    Abstract: A radiation detection apparatus includes an optical detector disposed on a substrate and having a plurality of photoelectric conversion elements which convert light into an electrical signal, and a scintillator layer disposed on the optical detector and having a columnar crystal structure which converts radiation into light, wherein the concentration of an activator of the scintillator layer is higher at the radiation-incident side opposite the optical detector and is lower at the optical detector side. The scintillator panel includes the substrate and the scintillator layer disposed on the substrate, wherein the concentration of the activator of the scintillator layer is higher at the radiation-incident side and is lower at the light-emission side.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: February 22, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazumi Nagano, Yoshihiro Ogawa, Satoshi Okada, Keiichi Nomura
  • Publication number: 20110038111
    Abstract: A radiation detecting apparatus includes: a sensor panel for converting radiation or light into an electric charge; a casing holding the sensor panel; an acceleration detecting unit for detecting an acceleration relating to a movement of the radiation detecting apparatus, and for transmitting a signal based on a value of the acceleration; a determining unit for determining, based on the signal transmitted from the acceleration detecting unit, as to whether the radiation detecting apparatus is in an excessively accelerated state, a free falling state or a normal state; and a buffer unit for operating to absorb a shock exerted on the radiation detecting apparatus, responsive to determination by the determining unit such that the radiation detecting apparatus is in an excessively accelerated state or a free falling state. The buffer unit is arranged outside of the casing.
    Type: Application
    Filed: May 29, 2009
    Publication date: February 17, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Satoshi Okada, Masato Inoue, Kazumi Nagano, Shinichi Takeda, Satoru Sawada
  • Patent number: 7863577
    Abstract: An underlayer of a phosphor layer is disposed on a sensor panel including two-dimensionally arranged photoelectric conversion devices. The surface of the underlayer is subjected to atmospheric pressure plasma treatment. The phosphor layer is formed on the surface-treated underlayer. Then, the phosphor layer is covered with a moisture-resistant protective layer, a reflection layer, and another protective layer. Thus, the phosphor layer is prevented from peeling due to adhesion failure, and is constituted of uniformly shaped crystals by vapor deposition. A resulting radiation detecting apparatus exhibits high sensitivity and high definition, producing a uniform photoelectric conversion efficiency.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: January 4, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazumi Nagano
  • Publication number: 20100155612
    Abstract: An image pickup apparatus includes a base that has electric conductivity, at least one image pickup element, and at least one fixing member for fixing the image pickup element to the base. The base has at least one conducting portion on the surface thereof on the side of the fixing member, and the image pickup element has a conducting portion on the surface thereof on the side of the fixing member. The fixing member is formed of peelable resin for separating the image pickup element from the base by applying current. The area of the conducting portion of the base is larger than the area of the fixing region between the fixing member and the base.
    Type: Application
    Filed: December 15, 2009
    Publication date: June 24, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shinichi Takeda, Satoshi Okada, Masato Inoue, Kazumi Nagano, Keiichi Nomura, Satoru Sawada
  • Patent number: 7723693
    Abstract: At a radiation incident side of light generating means comprising light guiding means 300 including a light source such as an LED 301, a light guiding plate 303, a reflecting plate 304, a diffusing plate 305, and the like, radiation shielding members 401 to 403 for shielding the radiation are provided. As the radiation shielding members, those absorbing or reflecting 70% of the incident radiation are preferably used. Further, the radiation shielding member is disposed between a radiation detecting panel 500 and a light generating source such as the LED 301 and the like or disposed between the radiation detecting panel and a drive circuit which drives the light source such as the LED 301, and the like.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: May 25, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoshi Okada, Yoshihiro Ogawa, Masato Inoue, Shinichi Takeda, Kazumi Nagano, Keiichi Nomura, Satoru Sawada
  • Patent number: 7714294
    Abstract: A radiation detecting apparatus includes: a sensor panel having a substrate and a photoelectric conversion element array arranged on the substrate; a scintillator layer arranged on one surface side of the sensor panel; and a light generator arranged on the sensor panel at the other side in opposition to the one side on which the scintillator layer is arranged, in corresponding to an area in which the photoelectric conversion element array is arranged. The light generator includes a light transmitting electrode layer, a rear electrode layer and a light emitting layer arranged between the light transmitting electrode layer and the rear electrode. The light emitting layer according to a first aspect is formed from light emitting substance, a binder and a black pigment.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: May 11, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoru Sawada, Satoshi Okada, Masato Inoue, Kazumi Nagano, Shinichi Takeda, Keiichi Nomura, Yoshihiro Ogawa
  • Publication number: 20100102236
    Abstract: To reduce peeling between members constituting an radiation detecting apparatus, the radiation detecting apparatus of the present invention includes a laminating layered structure in which a supporting substance, an adhesive layer, an array substrate having a photoelectric conversion element, a scintillator layer for converting a radiation into light and a resin layer are stacked in this order. Of arrangement regions of each layer in a plane direction, an arrangement region of the scintillator layer is broader than the region opposed to a photoelectric conversion element, and an arrangement region of the adhesive layer is the same as or broader than the arrangement region of the photoelectric conversion element and at least a portion of the arrangement region of the adhesive layer is narrower than that of the scintillator layer.
    Type: Application
    Filed: April 9, 2008
    Publication date: April 29, 2010
    Inventors: Masato Inoue, Satoshi Okada, Shinichi Takeda, Kazumi Nagano, Keiichi Nomura, Satoru Sawada
  • Publication number: 20100028557
    Abstract: An underlayer of a phosphor layer is disposed on a sensor panel including two-dimensionally arranged photoelectric conversion devices. The surface of the underlayer is subjected to atmospheric pressure plasma treatment. The phosphor layer is formed on the surface-treated underlayer. Then, the phosphor layer is covered with a moisture-resistant protective layer, a reflection layer, and another protective layer. Thus, the phosphor layer is prevented from peeling due to adhesion failure, and is constituted of uniformly shaped crystals by vapor deposition. A resulting radiation detecting apparatus exhibits high sensitivity and high definition, producing a uniform photoelectric conversion efficiency.
    Type: Application
    Filed: August 12, 2009
    Publication date: February 4, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: KAZUMI NAGANO
  • Patent number: 7642519
    Abstract: An underlayer of a phosphor layer is disposed on a sensor panel including two-dimensionally arranged photoelectric conversion devices. The surface of the underlayer is subjected to atmospheric pressure plasma treatment. The phosphor layer is formed on the surface-treated underlayer. Then, the phosphor layer is covered with a moisture-resistant protective layer, a reflection layer, and another protective layer. Thus, the phosphor layer is prevented from peeling due to adhesion failure, and is constituted of uniformly shaped crystals by vapor deposition. A resulting radiation detecting apparatus exhibits high sensitivity and high definition, producing a uniform photoelectric conversion efficiency.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: January 5, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazumi Nagano
  • Publication number: 20090289170
    Abstract: A radiation detection apparatus to detect radiation. A substrate (1) has a conversion element on a first surface. The conversion element is configured to convert radiation into electric charges. A readout circuit is connected to a first region. The first region includes a first edge of the first surface. A driving circuit is connected to a second region other than the first region. The second region includes a second edge of the first surface. A light source (4) is arranged on a second surface side which faces the first surface. The light source (4) is arranged so as to face any regions of the second surface side except the first region.
    Type: Application
    Filed: December 19, 2006
    Publication date: November 26, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Keiichi Nomura, Yoshihiro Ogawa, Satoshi Okada, Masato Inoue, Shinichi Takeda, Kazumi Nagano, Satoru Sawada
  • Publication number: 20090283685
    Abstract: There is provided a radiation detection apparatus including a sensor panel including a photoelectric conversion unit with a plurality of photoelectric conversion elements over a substrate, a wavelength converter, disposed over the photoelectric conversion unit of the sensor panel, for converting a radiation into light detectable by the photoelectric conversion element, a plane shaped light emitting body for emitting light to the photoelectric conversion unit of the sensor panel, disposed over the wavelength converter, and a protective layer disposed on the plane shaped light emitting body.
    Type: Application
    Filed: January 19, 2007
    Publication date: November 19, 2009
    Applicant: Canon Kabushiki Kaisha
    Inventors: Shinichi Takeda, Yoshihiro Ogawa, Satoshi Okada, Masato Inoue, Kazumi Nagano, Keiichi Nomura, Satoru Sawada