Patents by Inventor Masayoshi Akiyama

Masayoshi Akiyama 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: 20240123979
    Abstract: An automatic brake control apparatus to be applied to a vehicle is configured to: detect, with an ultrasonic sensor, a position of an obstacle on reverse travel of the vehicle, in which the ultrasonic sensor is disposed in a rear part of the vehicle; set a brake operation area on plane coordinates corresponding to the detected position by the ultrasonic sensor; and actuate an automatic brake. The brake operation area includes a low-speed operation area and a high-speed operation area. The low-speed operation area is set on the reverse travel at a lower speed than a setting vehicle speed, and the high-speed operation area is set on the reverse travel at a higher speed than the setting vehicle speed. The high-speed operation area is wider than the low-speed operation area at least in a vehicle widthwise direction.
    Type: Application
    Filed: December 28, 2023
    Publication date: April 18, 2024
    Inventors: Yuna AKIYAMA, Koichi MIZUTANI, Masayoshi KOIJI, Yusuke HAMADA, Kazuki MUTO, Tsubasa TAKASE
  • Patent number: 9059343
    Abstract: A radiation image pickup apparatus includes a base, at least one image pickup element, a scintillator, a first heat peelable adhesive layer which is arranged between the base and the image pickup element and which fixes the base and the image pickup element, and a second heat peelable adhesive layer which is arranged between the image pickup element and the scintillator and which fixes the image pickup element and the scintillator, and in the radiation image pickup element described above, the first heat peelable adhesive layer contains first heat-expandable microspheres, the second heat peelable adhesive layer contains second heat-expandable microspheres, and the first heat-expandable microspheres have a different expansion starting temperature from that of the second heat-expandable microspheres.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: June 16, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takamasa Ishii, Masato Inoue, Masayoshi Akiyama, Shinichi Takeda, Satoru Sawada, Taiki Takei
  • Patent number: 8829438
    Abstract: An imaging operation includes a first imaging operation for outputting image data according to irradiation to the detector with radiation or light in an irradiation field A corresponding to a part of the plurality of pixels, and a second imaging operation for outputting image data according to irradiation to the detector 104 with radiation or light in an irradiation field B wider than the irradiation field A, wherein, responsive to a changing from irradiation in the irradiation field A to irradiation in the irradiation field B, an operation of the detector is controlled so that the detector performs an initializing operation for initializing conversion elements during a period between the first and second imaging operations.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: September 9, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Sho Sato, Tadao Endo, Toshio Kameshima, Masayoshi Akiyama, Tomoyuki Yagi, Katsuro Takenaka, Keigo Yokoyama
  • Patent number: 8829456
    Abstract: A radiation imaging apparatus includes a substrate, at least one imaging element, a scintillator, a first heat peelable adhesive member which fixes the substrate to the imaging element, and a second heat peelable adhesive member which fixes the imaging element to the scintillator. An adhesive strength of the first heat peelable member is decreased by heat. A temperature of the first heat peelable adhesive member at which the adhesive strength is decreased is substantially equal to a temperature at which second heat peelable adhesive member fixes the imaging element to the scintillator. A heat transfer quantity per unit time of the substrate is different from that of the scintillator.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: September 9, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoru Sawada, Masato Inoue, Shinichi Takeda, Takamasa Ishii, Taiki Takei, Masayoshi Akiyama
  • Patent number: 8779373
    Abstract: A radiation detection apparatus includes a scintillator panel having a scintillator layer which converts radiation into light and a scintillator protective layer which protects the scintillator layer, and a sensor panel having a sensor array in which a plurality of photoelectric converters which detect light from the scintillator layer are arranged and a sensor protective layer which protects the sensor array. The scintillator panel is bonded to the sensor panel by making the scintillator layer adhere to the sensor protective layer by using the scintillator protective layer as an adhesive material. A principal component of the scintillator protective layer is the same as a principal component of the sensor protective layer.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: July 15, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinichi Takeda, Masato Inoue, Masayoshi Akiyama, Takamasa Ishii, Satoru Sawada, Taiki Takei
  • Patent number: 8779372
    Abstract: A radiation image pickup apparatus includes a base which transmits ultraviolet rays, a plurality of image pickup elements, a scintillator, at least one ultraviolet peelable adhesive arranged between the base and the image pickup elements so as to fix the base and the image pickup elements in a predetermined position with respect to each other, and a heat peelable adhesive arranged between the image pickup elements and the scintillators so as to fix the image pickup elements to the scintillator.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: July 15, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masato Inoue, Masayoshi Akiyama, Shinichi Takeda, Satoru Sawada
  • Patent number: 8653463
    Abstract: A radiation detection apparatus comprising semiconductor substrates each having a first surface on which a photoelectric conversion portion is formed and a second surface opposite to the first surface; a scintillator layer, placed over the first surfaces of the semiconductor substrates, for converting radiation into light; and an elastic member, placed between a base and the second surfaces, for supporting the second surfaces of the semiconductor substrates such that the first surfaces of the semiconductor substrates are flush with each other is provided. In measurement of the elastic member as a single body, an amount of stretch of a cubic specimen in a direction parallel to the first surface when being compressed in a direction perpendicular to the first surface is smaller than an amount of stretch of the specimen in the direction perpendicular to the first surface when being compressed in the direction parallel to the first surface.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: February 18, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoru Sawada, Masato Inoue, Noriaki Oguri, Shinichi Takeda, Masayoshi Akiyama, Taiki Takei
  • Patent number: 8541754
    Abstract: An imaging system includes a detector (104) having a first area where irradiation occurs in a radiation field (A) and a second area other than the first area where irradiation occurs in a radiation field (B) and configured to output image data, and an image processing unit (601) that performs image processing on the image data. The image processing unit (601) includes a storage unit (602) that stores dark output information, a measurement unit (607) that measures the integral dose of the radiation or light applied to a pixel in the first area and the integral dose of the radiation or light applied to a pixel in the second area, and a correction unit (610) that corrects the image data, based on the dark output information obtained from the storage unit (602) and the integral doses measured by the measurement unit (607), when changing of the radiation field has occurred.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: September 24, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuro Takenaka, Tadao Endo, Toshio Kameshima, Masayoshi Akiyama, Tomoyuki Yagi, Keigo Yokoyama
  • Patent number: 8471213
    Abstract: An apparatus includes a detecting unit having pixels that converts radiation or light to electric signals; a drive circuit that drives the detecting unit; a read circuit that outputs the electric signals as image signals; a power supply unit that supplies voltages to the detecting unit, the drive circuit, and the read circuit; and a control unit that controls at least the drive circuit and the power supply unit. The control unit performs a first process of stopping the voltage supply operation to the detecting unit, with the voltage supply operations to the drive circuit and the read circuit maintained; a second process of driving the detecting unit; and a third process of stopping the voltage supply operations to the drive circuit and the read circuit.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: June 25, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoyuki Yagi, Tadao Endo, Toshio Kameshima, Masayoshi Akiyama, Katsuro Takenaka, Keigo Yokoyama
  • Patent number: 8440975
    Abstract: A scintillator includes a scintillator layer which converts radiation into light, the scintillator layer having a first end forming part of a contour of the scintillator layer and a second end forming another part of the contour, wherein the first end and the second end are located on opposite sides of the scintillator layer when viewed from the center of the scintillator layer, wherein an efficiency of conversion from radiation into light decreases from the first end to the second end.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: May 14, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masato Inoue, Masayoshi Akiyama, Shinichi Takeda, Satoru Sawada, Takamasa Ishii, Taiki Takei
  • Publication number: 20130099344
    Abstract: The present invention provides a radiation image pickup apparatus in which one or more image pickup elements are easily exchanged. A radiation image pickup apparatus includes a base, at least one image pickup element, a scintillator, a first heat peelable adhesive layer which is arranged between the base and the image pickup element and which fixes the base and the image pickup element, and a second heat peelable adhesive layer which is arranged between the image pickup element and the scintillator and which fixes the image pickup element and the scintillator, and in the radiation image pickup element described above, the first heat peelable adhesive layer contains first heat-expandable microspheres, the second heat peelable adhesive layer contains second heat-expandable microspheres, and the first heat-expandable microspheres have a different expansion starting temperature from that of the second heat-expandable microspheres.
    Type: Application
    Filed: June 13, 2011
    Publication date: April 25, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takamasa Ishii, Masato Inoue, Masayoshi Akiyama, Shinichi Takeda, Satoru Sawada, Taiki Takei
  • Publication number: 20120223237
    Abstract: A radiation detection apparatus includes a scintillator panel having a scintillator layer which converts radiation into light and a scintillator protective layer which protects the scintillator layer, and a sensor panel having a sensor array in which a plurality of photoelectric converters which detect light from the scintillator layer are arranged and a sensor protective layer which protects the sensor array. The scintillator panel is bonded to the sensor panel by making the scintillator layer adhere to the sensor protective layer by using the scintillator protective layer as an adhesive material. A principal component of the scintillator protective layer is the same as a principal component of the sensor protective layer.
    Type: Application
    Filed: February 23, 2012
    Publication date: September 6, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Shinichi Takeda, Masato Inoue, Masayoshi Akiyama, Takamasa Ishii, Satoru Sawada, Taiki Takei
  • Patent number: 8227757
    Abstract: An imaging apparatus includes a detector, having a plurality of pixels arranged in a matrix, for performing first and second radiography operations, a bias light source, and a control unit that controls the operation of the detector and the bias light source. In the first radiography operation, image data corresponding to radiation in a first radiation field corresponding to some of the pixels is output. In the second radiography operation, image data corresponding to radiation in a second radiation field larger than the first radiation field is output. In accordance with a change from the first radiation field to the second radiation field, the operation of the bias light source is controlled so that the irradiation with the bias light is performed during a period between the first and second radiography operations at a bias-light integral dose determined based on radiation integral dose information in the first radiography operation.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: July 24, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keigo Yokoyama, Tadao Endo, Toshio Kameshima, Masayoshi Akiyama, Tomoyuki Yagi, Katsuro Takenaka, Sho Sato
  • Publication number: 20120181434
    Abstract: A radiation imaging apparatus includes a substrate, at least one imaging element, a scintillator, a first heat peelable adhesive member which fixes the substrate to the imaging element, and a second heat peelable adhesive member which fixes the imaging element to the scintillator. An adhesive strength of the first heat peelable member is decreased by heat. A temperature of the first heat peelable adhesive member at which the adhesive strength is decreased is substantially equal to a temperature at which second heat peelable adhesive member fixes the imaging element to the scintillator. A heat transfer quantity per unit time of the substrate is different from that of the scintillator.
    Type: Application
    Filed: December 13, 2011
    Publication date: July 19, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Satoru Sawada, Masato Inoue, Shinichi Takeda, Takamasa Ishii, Taiki Takei, Masayoshi Akiyama
  • Publication number: 20120119094
    Abstract: A scintillator includes a scintillator layer which converts radiation into light, the scintillator layer having a first end forming part of a contour of the scintillator layer and a second end forming another part of the contour, wherein the first end and the second end are located on opposite sides of the scintillator layer when viewed from the center of the scintillator layer, wherein an efficiency of conversion from radiation into light decreases from the first end to the second end.
    Type: Application
    Filed: October 20, 2011
    Publication date: May 17, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masato Inoue, Masayoshi Akiyama, Shinichi Takeda, Satoru Sawada, Takamasa Ishii, Taiki Takei
  • Publication number: 20110315887
    Abstract: A radiation image pickup apparatus includes a base which transmits ultraviolet rays, a plurality of image pickup elements, a scintillator, at least one ultraviolet peelable adhesive arranged between the base and the image pickup elements so as to fix the base and the image pickup elements in a predetermined position with respect to each other, and a heat peelable adhesive arranged between the image pickup elements and the scintillators so as to fix the image pickup elements to the scintillator.
    Type: Application
    Filed: June 16, 2011
    Publication date: December 29, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masato Inoue, Masayoshi Akiyama, Shinichi Takeda, Satoru Sawada
  • Publication number: 20110317054
    Abstract: An imaging apparatus 100 includes a detector 104 having a plurality of pixels arranged in a matrix and performing an imaging operation of outputting image data according to the radiation or light emitted in a predetermined irradiation field; and a controller unit 106, and performs a first imaging operation for outputting image data according to the radiation in a narrower irradiation field A corresponding to part of pixels and a second imaging operation for outputting image data according to the radiation in a wider irradiation field B, under controlling the detector to perform an accumulation operation during the second imaging operation so that a step of image is a preliminarily set tolerable quantity.
    Type: Application
    Filed: March 12, 2010
    Publication date: December 29, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toshio Kameshima, Tadao Endo, Masayoshi Akiyama, Tomoyuki Yagi, Katsuro Takenaka, Keigo Yokoyama, Sho Sato, Toshikazu Tamura
  • Publication number: 20110315886
    Abstract: A radiation detection apparatus comprising semiconductor substrates each having a first surface on which a photoelectric conversion portion is formed and a second surface opposite to the first surface; a scintillator layer, placed over the first surfaces of the semiconductor substrates, for converting radiation into light; and an elastic member, placed between a base and the second surfaces, for supporting the second surfaces of the semiconductor substrates such that the first surfaces of the semiconductor substrates are flush with each other is provided. In measurement of the elastic member as a single body, an amount of stretch of a cubic specimen in a direction parallel to the first surface when being compressed in a direction perpendicular to the first surface is smaller than an amount of stretch of the specimen in the direction perpendicular to the first surface when being compressed in the direction parallel to the first surface.
    Type: Application
    Filed: May 18, 2011
    Publication date: December 29, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Satoru Sawada, Masato Inoue, Noriaki Oguri, Shinichi Takeda, Masayoshi Akiyama, Taiki Takei
  • Publication number: 20110309262
    Abstract: An imaging operation includes a first imaging operation for outputting image data according to irradiation to the detector with radiation or light in an irradiation field A corresponding to a part of the plurality of pixels, and a second imaging operation for outputting image data according to irradiation to the detector 104 with radiation or light in an irradiation field B wider than the irradiation field A, wherein, responsive to a changing from irradiation in the irradiation field A to irradiation in the irradiation field B, an operation of the detector is controlled so that the detector performs an initializing operation for initializing conversion elements during a period between the first and second imaging operations.
    Type: Application
    Filed: March 30, 2010
    Publication date: December 22, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Sho Sato, Tadao Endo, Toshio Kameshima, Masayoshi Akiyama, Tomoyuki Yagi, Katsuro Takenaka, Keigo Yokoyama
  • Patent number: 8079243
    Abstract: The plug is for expanding the inside diameter of the end portion of a metal pipe. Its cross section is a circle, and includes a taper portion and a parallel portion connected to the tail end of the taper portion. The diameter of the taper portion gradually increases from the head end of the taper portion to the tail end of the taper portion where the diameter is D1. The axial distance LR from the point where the diameter D2=D1×0.99 to the tail end where the diameter is D1 satisfies the Expression 22?LR/((D1?D2)/2)?115. The taper angle on the surface where the diameter is D2 is larger than or equal to the taper angle on the tail surface of the taper portion following the point where the diameter is D2. The diameter of the parallel portion is D1.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: December 20, 2011
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Tatsuya Okui, Koichi Kuroda, Masayoshi Akiyama