Patents by Inventor Tadashi Arimoto
Tadashi Arimoto 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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Publication number: 20150316660Abstract: An object of the invention is to provide a scintillator panel which exhibits excellent cuttability and can be cut without the occurrence of problems such as the separation of a scintillator layer and which can give radiographic images such as X-ray images with excellent sensitivity and sharpness. The scintillator panel of the invention includes a reflective layer and a scintillator layer formed by deposition on a support, and the reflective layer includes light-scattering particles and a specific binder resin and has a specific thickness.Type: ApplicationFiled: July 2, 2015Publication date: November 5, 2015Inventors: Tadashi ARIMOTO, Kiyoshi HAGIWARA
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Patent number: 9121951Abstract: An object of the invention is to provide a scintillator panel which exhibits excellent cuttability and can be cut without the occurrence of problems such as the separation of a scintillator layer and which can give radiographic images such as X-ray images with excellent sensitivity and sharpness. The scintillator panel of the invention includes a reflective layer and a scintillator layer formed by deposition on a support, and the reflective layer includes light-scattering particles and a specific binder resin and has a specific thickness.Type: GrantFiled: February 14, 2014Date of Patent: September 1, 2015Assignee: KONICA MINOLTA, INC.Inventors: Tadashi Arimoto, Kiyoshi Hagiwara
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Patent number: 9117562Abstract: The steps of the method to make the scintillator panel are providing a first support having thereon a phosphor layer; dividing the first support the phosphor layer into a plurality of scintillator panel sections each having a first support section and a phosphor layer section thereon; providing an adhesive member between a side of the first support section of each of the plurality of the scintillator panel sections and a side of a second support; adhering the plurality of the scintillator panel sections onto the second support; forming a protective layer on a whole surface of the plurality of the scintillator panel sections except a portion of the scintillator panel sections which is contacted with the adhesive member; and separating the scintillator panel sections with their protective layer thereon from the second support. The separated scintillator panel sections with their protective layer are then adhered to light receiving element to form the flat panel detector.Type: GrantFiled: February 2, 2012Date of Patent: August 25, 2015Assignee: KONICA MINOLTA MEDICAL & GRAPHIC, INC.Inventors: Keiko Itaya, Tadashi Arimoto
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Publication number: 20140239195Abstract: An object of the invention is to provide a scintillator panel which exhibits excellent cuttability and can be cut without the occurrence of problems such as the separation of a scintillator layer and which can give radiographic images such as X-ray images with excellent sensitivity and sharpness. The scintillator panel of the invention includes a reflective layer and a scintillator layer formed by deposition on a support, and the reflective layer includes light-scattering particles and a specific binder resin and has a specific thickness.Type: ApplicationFiled: February 14, 2014Publication date: August 28, 2014Applicant: Konica Minolta, Inc.Inventors: Tadashi ARIMOTO, Kiyoshi HAGIWARA
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Publication number: 20140239196Abstract: An object of the invention is to provide scintillator panels which can give radiographic images such as X-ray images with excellent sharpness and excellent uniformity of sharpness, which realize devices such as flat panel detectors having uniform image quality characteristics in the light-receiving plane, and which exhibit excellent cuttability, excellent sharpness and excellent in-plane uniformity of sharpness. A scintillator panel of the invention includes a support, a reflective layer on the support, and a scintillator layer formed on the reflective layer by deposition. The reflective layer includes light-scattering particles and a binder resin. A specific region of the reflective layer is defined by a resin or includes light-scattering particles having a specific area average particle diameter, or the reflective layer has a specific arithmetic average roughness.Type: ApplicationFiled: February 19, 2014Publication date: August 28, 2014Applicant: Konica Minolta, Inc.Inventors: Takehiko SHOJI, Kiyoshi HAGIWARA, Tadashi ARIMOTO
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Patent number: 8803098Abstract: A method of manufacturing a scintillator panel in which no dust is generated when improving protrusions on the phosphor surface, resulting in no generation of image defects caused by the dust, to-provide a scintillator panel exhibiting excellent image quality and a radiation image detector thereof. The scintillator panel includes a support having a phosphor layer formed thereon. The method includes forming the phosphor layer on the support, and subsequently heat-treating the support and the phosphor layer which are sandwiched by two rigid plates under applied pressure.Type: GrantFiled: March 10, 2010Date of Patent: August 12, 2014Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Tadashi Arimoto, Takafumi Yanagita
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Patent number: 8440983Abstract: Disclosed are a radiation image conversion panel, which provides high luminance, an image without white or black defects, an image free from cracks and an image with reduced unevenness, and its manufacturing method. Also disclosed is an X-ray radiographic system employing the radiation image conversion panel. The radiation image conversion panel of the invention comprises a substrate and provided thereon, a reflection layer, a phosphor layer and a protective layer in that order, wherein the phosphor layer is composed of a phosphor crystal in the form of column, and the reflection layer is formed by vapor phase deposition of two or more kinds of metals.Type: GrantFiled: February 22, 2008Date of Patent: May 14, 2013Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Takafumi Yanagita, Tadashi Arimoto
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Patent number: 8436322Abstract: A radiation image conversion panel which is excellent in luminance and sharpness is disclosed, comprising a phosphor layer formed on a support by a process of vapor growth, and the support comprising a resin and exhibiting a linear thermal expansion coefficient of 20 to 70 ppm/° C.Type: GrantFiled: February 4, 2009Date of Patent: May 7, 2013Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Shinichi Okamura, Tadashi Arimoto
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Publication number: 20120211661Abstract: Provided is a method for producing a scintillator panel containing a first support having thereon a phosphor layer, and a protective layer on the phosphor layer, the method comprising the steps of (1) dividing a first scintillator panel comprising the first support having thereon the phosphor layer into a plurality of second scintillator panels; (2) providing an adsorbing member between a side of the first support of each of the plurality of the second scintillator panels and a side of a second support; and allowing to adsorb the plurality of the second scintillator panels onto the second support; (3) forming a protective layer on a whole surface of the plurality of the second scintillator panels except a portion of the second scintillator panels which is contacted with the adsorbing member.Type: ApplicationFiled: February 2, 2012Publication date: August 23, 2012Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.Inventors: Keiko ITAYA, Tadashi ARIMOTO
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Publication number: 20120068074Abstract: A method of manufacturing a scintillator panel in which no dust is generated when improving protrusions on the phosphor surface, resulting in no generation of image defects caused by the dust, to-provide a scintillator panel exhibiting excellent image quality and a radiation image detector thereof. The scintillator panel includes a support having a phosphor layer formed thereon. The method includes forming the phosphor layer on the support, and subsequently heat-treating the support and the phosphor layer which are sandwiched by two rigid plates under applied pressure.Type: ApplicationFiled: March 10, 2010Publication date: March 22, 2012Applicant: Konica Minolta Medical & Graphic Inc.Inventors: Tadashi Arimoto, Takafumi Yanagita
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Publication number: 20110017925Abstract: A radiation image conversion panel which is excellent in luminance and sharpness is disclosed, comprising a phosphor layer formed on a support by a process of vapor growth, and the support comprising a resin and exhibiting a linear thermal expansion coefficient of 20 to 70 ppm/° C.Type: ApplicationFiled: February 4, 2009Publication date: January 27, 2011Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.Inventors: Shinichi Okamura, Tadashi Arimoto
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Patent number: 7834330Abstract: There is provided a radiation image conversion panel having strong resistance to physical impact, and in which enhanced sharpness and adhesion are balanced, especially, enhanced adhesion of a photostimulable phosphor layer onto a support is achieved, and a preparation method of the radiation image conversion panel. The radiation image conversion panel comprising on a support a sublayer and at least one photostimulable phosphor layer in this order from the support, featured in that the photostimulable phosphor layer is formed by a gas phase method and has a thickness of not less than 50 ?m, and the sublayer comprises a thermoplastic resin and the thickness of the central portion in an image area of the sublayer is greater than that of the peripheral portion of the image area.Type: GrantFiled: March 22, 2006Date of Patent: November 16, 2010Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Takafumi Yanagita, Tadashi Arimoto
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Patent number: 7718986Abstract: A radiation image conversion panel containing a substrate having thereon a phosphor layer, wherein the phosphor layer is formed with a vapor deposition method, and an adhesion force of the phosphor layer with the substrate is greater than a breaking strength of the phosphor layer.Type: GrantFiled: January 21, 2008Date of Patent: May 18, 2010Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Takafumi Yanagita, Tadashi Arimoto
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Publication number: 20100034351Abstract: Disclosed are a radiation image conversion panel, which provides high luminance, an image without white or black defects, an image free from cracks and an image with reduced unevenness, and its manufacturing method. Also disclosed is an X-ray radiographic system employing the radiation image conversion panel. The radiation image conversion panel of the invention comprises a substrate and provided thereon, a reflection layer, a phosphor layer and a protective layer in that order, wherein the phosphor layer is composed of a phosphor crystal in the form of column, and the reflection layer is formed by vapor phase deposition of two or more kinds of metals.Type: ApplicationFiled: February 22, 2008Publication date: February 11, 2010Inventors: Takafumi Yanagita, Tadashi Arimoto
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Patent number: 7638785Abstract: A reading system for reading information recorded in a radiation image conversion panel containing a flexible substrate having thereon a phosphor layer containing a columnar crystal phosphor, wherein the reading system has a transport section to transport the radiation image conversion panel with curvature when the radiation image conversion panel is transported in the reading system, provided that the radiation image conversion panel has a curvature radius of from 50 to 500 mm during transportation by the transport section in the reading system.Type: GrantFiled: January 22, 2008Date of Patent: December 29, 2009Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Takafumi Yanagita, Tadashi Arimoto
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Patent number: 7564047Abstract: An objective is to provide a radiation image conversion panel exhibiting no generation of cracks in a phosphor layer, easy cutting, improved image and excellent productivity, and also to provide a manufacturing method and a cassette thereof. Disclosed is a radiation image conversion panel possessing a support and provided thereon, a phosphor layer possessing phosphor having a columnar crystal structure, wherein a region in which no phosphor layer is provided on a surface of the support is within 0.5 mm from an edge of the support.Type: GrantFiled: October 26, 2007Date of Patent: July 21, 2009Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Tadashi Arimoto, Takafumi Yanagita, Yoshihiro Gorouya
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Publication number: 20090078887Abstract: There is provided a radiation image conversion panel having strong resistance to physical impact, and in which enhanced sharpness and adhesion are balanced, especially, enhanced adhesion of a photostimulable phosphor layer onto a support is achieved, and a preparation method of the radiation image conversion panel. The radiation image conversion panel comprising on a support a sublayer and at least one photostimulable phosphor layer in this order from the support, featured in that the photostimulable phosphor layer is formed by a gas phase method and has a thickness of not less than 50 ?m, and the sublayer comprises a thermoplastic resin and the thickness of the central portion in an image area of the sublayer is greater than that of the peripheral portion of the image area.Type: ApplicationFiled: March 22, 2006Publication date: March 26, 2009Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.Inventors: Takafumi Yanagita, Tadashi Arimoto
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Publication number: 20080251741Abstract: A reading system for reading information recorded in a radiation image conversion panel containing a flexible substrate having thereon a phosphor layer containing a columnar crystal phosphor, wherein the reading system has a transport section to transport the radiation image conversion panel with curvature when the radiation image conversion panel is transported in the reading system, provided that the radiation image conversion panel has a curvature radius of from 50 to 500 mm during transportation by the transport section in the reading system.Type: ApplicationFiled: January 22, 2008Publication date: October 16, 2008Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.Inventors: Takafumi Yanagita, Tadashi Arimoto
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Publication number: 20080179542Abstract: A radiation image conversion panel containing a substrate having thereon a phosphor layer, wherein the phosphor layer is formed with a vapor deposition method, and an adhesion force of the phosphor layer with the substrate is greater than a breaking strength of the phosphor layer.Type: ApplicationFiled: January 21, 2008Publication date: July 31, 2008Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.Inventors: Takafumi YANAGITA, Tadashi ARIMOTO
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Publication number: 20080105832Abstract: An objective is to provide a radiation image conversion panel exhibiting no generation of cracks in a phosphor layer, easy cutting, improved image and excellent productivity, and also to provide a manufacturing method and a cassette thereof. Disclosed is a radiation image conversion panel possessing a support and provided thereon, a phosphor layer possessing phosphor having a columnar crystal structure, wherein a region in which no phosphor layer is provided on a surface of the support is within 0.5 mm from an edge of the support.Type: ApplicationFiled: October 26, 2007Publication date: May 8, 2008Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.Inventors: Tadashi ARIMOTO, Takafumi YANAGITA, Yoshihiro GOROUYA