Patents by Inventor Taiki Takei
Taiki Takei 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).
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Patent number: 9417338Abstract: A radiation image pickup apparatus includes an image pickup panel in which a plurality of image pickup substrates including photoelectric-conversion elements is fixed onto a base, a scintillator portion including a scintillator layer of alkali halide-based columnar crystal and overlaid on the image pickup panel, and a moisture-proof layer provided between the base and the scintillator layer, at least between the plurality of image pickup substrates. The water vapor permeability of the moisture-proof layer is 10 g/m2/day or less.Type: GrantFiled: November 27, 2013Date of Patent: August 16, 2016Assignee: Canon Kabushiki KaishaInventors: Takamasa Ishii, Masato Inoue, Shinichi Takeda, Satoru Sawada, Taiki Takei, Kota Nishibe
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Patent number: 9366767Abstract: A radiation detecting apparatus includes a scintillator and a photoelectric conversion panel. The photoelectric conversion panel includes a frame member disposed on an outer side of a photoelectric conversion section along at least a portion of one side of the photoelectric conversion panel. The frame member includes an inclined surface having a downward slope toward the photoelectric conversion section. The scintillator includes a first scintillator formed continuously on the inclined surface of the frame member and a surface of the photoelectric conversion section, and a second scintillator formed on the first scintillator. The first scintillator has a non-columnar crystal structure, and the second scintillator has a columnar crystal structure.Type: GrantFiled: March 14, 2014Date of Patent: June 14, 2016Assignee: Canon Kabushiki KaishaInventors: Masato Inoue, Shinichi Takeda, Satoru Sawada, Takamasa Ishii, Taiki Takei, Kota Nishibe
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Patent number: 9354333Abstract: A radiation detection apparatus, comprising a housing including a first plate portion and a second plate portion arranged to face each other, a scintillator configured to convert radiation into light, supported by a supporting portion arranged in a side of the second plate portion in the housing, a sensor panel including a sensor array in which a plurality of sensors for detecting light are arrayed, interposed between the scintillator and the first plate portion in the housing, and a member interposed between the first plate portion and the sensor panel in the housing, wherein the sensor panel is arranged to position an outer edge of the sensor panel outside an outer edge of the scintillator, and the member is arranged to position an outer edge of the member inside the outer edge of the scintillator.Type: GrantFiled: May 24, 2013Date of Patent: May 31, 2016Assignee: CANON KABUSHIKI KAISHAInventors: Masato Inoue, Shinichi Takeda, Satoru Sawada, Takamasa Ishii, Taiki Takei, Kota Nishibe
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Patent number: 9229117Abstract: A radiation imaging apparatus comprising a plurality of sensor units each including a plurality of photoelectric converters, a substrate configured to support the plurality of sensor units, and a scintillator, wherein the scintillator comprises scintillator grains configured to convert radiation into light and a binder configured to make the scintillator grains adhere to each other, and the scintillator includes first portions provided between the plurality of sensor units and a second portion provided on the plurality of sensor units and the substrate.Type: GrantFiled: August 9, 2013Date of Patent: January 5, 2016Assignee: CANON KABUSHIKI KAISHAInventors: Shinichi Takeda, Masato Inoue, Satoru Sawada, Takamasa Ishii, Taiki Takei, Kota Nishibe, Shoshiro Saruta
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Publication number: 20150369926Abstract: A radiographic photographing apparatus includes a radiation sensor panel including a photoelectric conversion unit in which a conversion element configured to detect radiation or light is arranged; a light source unit having a light source configured to emit light having a wavelength different from the radiation to the radiation sensor panel; and a conductive member arranged between the radiation sensor panel and the light source unit and configured to receive a supply of a fixed potential.Type: ApplicationFiled: June 12, 2015Publication date: December 24, 2015Inventors: Tomoaki Ichimura, Taiki Takei
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Patent number: 9177922Abstract: An electric device, comprising a conductive guard ring formed on a substrate along an outer periphery of the substrate, an electrode formed inside the guard ring on the substrate, and a connecting portion formed above the electrode, for connecting an external apparatus and the electrode, wherein the connecting portion includes a conductive member for electrically connecting the external apparatus and the electrode, and an insulating member formed on a lower surface of the conductive member, and the insulating member exposes a portion of the conductive member, which is positioned immediately above the electrode, and an end of the insulating member is positioned inside the guard ring in planar view such that the conductive member and the guard ring do not contact each other.Type: GrantFiled: May 30, 2014Date of Patent: November 3, 2015Assignee: CANON KABUSHIKI KAISHAInventors: Shinichi Takeda, Masato Inoue, Satoru Sawada, Takamasa Ishii, Taiki Takei, Kota Nishibe
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Patent number: 9081104Abstract: A radiation detection apparatus includes a sensor panel which includes a photoelectric conversion unit, a scintillator layer disposed above the photoelectric conversion unit and configured to convert radiation into light, a reflection layer disposed above the scintillator layer and configured to reflect part of light generated by the scintillator layer toward the sensor panel; and a protective layer which covers the scintillator layer from above the reflection layer. The scintillator layer is fixed on the sensor panel. The reflection layer is fixed on the protective layer. Part of the protective layer is bonded to the sensor panel with an adhesive material so as to seal the scintillator layer and the reflection layer with the protective layer and the sensor panel. An upper surface of the scintillator layer includes a portion which is not fixed to the reflection layer.Type: GrantFiled: March 7, 2014Date of Patent: July 14, 2015Assignee: CANON KABUSHIKI KAISHAInventors: Satoru Sawada, Masato Inoue, Shinichi Takeda, Takamasa Ishii, Taiki Takei, Kota Nishibe
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Patent number: 9059343Abstract: 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: GrantFiled: June 13, 2011Date of Patent: June 16, 2015Assignee: Canon Kabushiki KaishaInventors: Takamasa Ishii, Masato Inoue, Masayoshi Akiyama, Shinichi Takeda, Satoru Sawada, Taiki Takei
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Patent number: 8941074Abstract: A radiation imaging apparatus, comprising a sensor panel including a sensor array on which a plurality of sensors arranged in an array form and a scintillator layer provided on the sensor array, and a unit configured to perform signal processing based on a signal from the sensor array, wherein the sensor array includes a peripheral region and a central region located inside the peripheral region, the scintillator layer is disposed over the peripheral region and the central region so as to have uniform luminance efficiency with respect to the sensor array, and the unit performs the signal processing by using only signals from sensors disposed in the central region, of signals from the plurality of sensors, output from the sensor panel.Type: GrantFiled: August 1, 2013Date of Patent: January 27, 2015Assignee: Canon Kabushiki KaishaInventors: Masato Inoue, Shinichi Takeda, Satoru Sawada, Takamasa Ishii, Taiki Takei, Kota Nishibe
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Publication number: 20140361183Abstract: An electric device, comprising a conductive guard ring formed on a substrate along an outer periphery of the substrate, an electrode formed inside the guard ring on the substrate, and a connecting portion formed above the electrode, for connecting an external apparatus and the electrode, wherein the connecting portion includes a conductive member for electrically connecting the external apparatus and the electrode, and an insulating member formed on a lower surface of the conductive member, and the insulating member exposes a portion of the conductive member, which is positioned immediately above the electrode, and an end of the insulating member is positioned inside the guard ring in planar view such that the conductive member and the guard ring do not contact each other.Type: ApplicationFiled: May 30, 2014Publication date: December 11, 2014Inventors: Shinichi Takeda, Masato Inoue, Satoru Sawada, Takamasa Ishii, Taiki Takei, Kota Nishibe
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Publication number: 20140319361Abstract: A radiation imaging apparatus, comprising a sensor array in which a plurality of sensors are arrayed, and scintillators arranged in a plurality of regions divided by members on the sensor array, wherein a relationship P2<P1 is satisfied, where P1 represents a pitch of the plurality of sensors in the sensor array and P2 represents a distance between centers of two adjacent ones of the members, which sandwich one of the plurality of regions therebetween.Type: ApplicationFiled: April 22, 2014Publication date: October 30, 2014Inventors: Takamasa Ishii, Masato Inoue, Shinichi Takeda, Satoru Sawada, Taiki Takei, Kota Nishibe
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Publication number: 20140284486Abstract: A radiation detecting apparatus includes a scintillator and a photoelectric conversion panel. The photoelectric conversion panel includes a frame member disposed on an outer side of a photoelectric conversion section along at least a portion of one side of the photoelectric conversion panel. The frame member includes an inclined surface having a downward slope toward the photoelectric conversion section. The scintillator includes a first scintillator formed continuously on the inclined surface of the frame member and a surface of the photoelectric conversion section, and a second scintillator formed on the first scintillator. The first scintillator has a non-columnar crystal structure, and the second scintillator has a columnar crystal structure.Type: ApplicationFiled: March 14, 2014Publication date: September 25, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Masato Inoue, Shinichi Takeda, Satoru Sawada, Takamasa Ishii, Taiki Takei, Kota Nishibe
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Publication number: 20140284487Abstract: A radiation detection apparatus includes a sensor panel which includes a photoelectric conversion unit, a scintillator layer disposed above the photoelectric conversion unit and configured to convert radiation into light, a reflection layer disposed above the scintillator layer and configured to reflect part of light generated by the scintillator layer toward the sensor panel; and a protective layer which covers the scintillator layer from above the reflection layer. The scintillator layer is fixed on the sensor panel. The reflection layer is fixed on the protective layer. Part of the protective layer is bonded to the sensor panel with an adhesive material so as to seal the scintillator layer and the reflection layer with the protective layer and the sensor panel. An upper surface of the scintillator layer includes a portion which is not fixed to the reflection layer.Type: ApplicationFiled: March 7, 2014Publication date: September 25, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Satoru Sawada, Masato Inoue, Shinichi Takeda, Takamasa Ishii, Taiki Takei, Kota Nishibe
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Patent number: 8829456Abstract: 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: GrantFiled: December 13, 2011Date of Patent: September 9, 2014Assignee: Canon Kabushiki KaishaInventors: Satoru Sawada, Masato Inoue, Shinichi Takeda, Takamasa Ishii, Taiki Takei, Masayoshi Akiyama
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Patent number: 8779373Abstract: 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: GrantFiled: February 23, 2012Date of Patent: July 15, 2014Assignee: Canon Kabushiki KaishaInventors: Shinichi Takeda, Masato Inoue, Masayoshi Akiyama, Takamasa Ishii, Satoru Sawada, Taiki Takei
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Publication number: 20140175295Abstract: A scintillator includes a scintillator layer having a plurality of columnar crystals configured to convert radiation into light, and a covering layer configured to cover the scintillator layer. The scintillator layer includes a protrusion. The covering layer covers the scintillator layer to prevent the protrusion from breaking through the covering layer, and contains particles configured to convert radiation into light.Type: ApplicationFiled: December 6, 2013Publication date: June 26, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Taiki Takei, Masato Inoue, Shinichi Takeda, Satoru Sawada, Takamasa Ishii, Kota Nishibe
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Publication number: 20140145086Abstract: A radiation image pickup apparatus includes an image pickup panel in which a plurality of image pickup substrates including photoelectric-conversion elements is fixed onto a base, a scintillator portion including a scintillator layer of alkali halide-based columnar crystal and overlaid on the image pickup panel, and a moisture-proof layer provided between the base and the scintillator layer, at least between the plurality of image pickup substrates. The water vapor permeability of the moisture-proof layer is 10 g/m2/day or less.Type: ApplicationFiled: November 27, 2013Publication date: May 29, 2014Inventors: Takamasa Ishii, Masato Inoue, Shinichi Takeda, Satoru Sawada, Taiki Takei, Kota Nishibe
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Publication number: 20140091209Abstract: A radiation detecting apparatus includes a sensor panel that has photoelectric conversion elements; a light source unit that has a light guide plate, a light-emitting source disposed at a side surface of the light guide plate, a diffusing plate disposed at one surface of the light guide plate, and a reflective plate disposed at an opposite surface of the light guide plate; and a support substrate that supports the light source unit. The light source unit is provided between the sensor panel and the support substrate. Multiple protrusions of the diffusing plate are in contact with a surface of the sensor panel. The light source unit is adhered to the sensor panel via an adhesive, and the adhesive extends to the support substrate.Type: ApplicationFiled: September 27, 2013Publication date: April 3, 2014Inventors: Taiki Takei, Masato Inoue, Shinichi Takeda, Satoru Sawada, Takamasa Ishii, Kota Nishibe
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Publication number: 20140093041Abstract: A sensor panel provided with a photoelectric conversion element that detects entering light, a columnar-structure scintillator layer arranged on the sensor panel, a light reflection layer formed on the columnar-structure scintillator layer, and a resin layer including a particulate scintillator formed between the columnar-structure scintillator layer and the light reflection layer are included in a detecting apparatus, and the resin layer includes a particulate scintillator.Type: ApplicationFiled: September 27, 2013Publication date: April 3, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Taiki Takei, Masato Inoue, Shinichi Takeda, Satoru Sawada, Takamasa Ishii, Kota Nishibe
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Publication number: 20140054467Abstract: A radiation imaging apparatus comprising a plurality of sensor units each including a plurality of photoelectric converters, a substrate configured to support the plurality of sensor units, and a scintillator, wherein the scintillator comprises scintillator grains configured to convert radiation into light and a binder configured to make the scintillator grains adhere to each other, and the scintillator includes first portions provided between the plurality of sensor units and a second portion provided on the plurality of sensor units and the substrate.Type: ApplicationFiled: August 9, 2013Publication date: February 27, 2014Inventors: Shinichi Takeda, Masato Inoue, Satoru Sawada, Takamasa Ishii, Taiki Takei, Kota Nishibe, Shoshiro Saruta