Patents by Inventor Yoshimasa Kobayashi
Yoshimasa Kobayashi 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: 10421691Abstract: A joined body 20 according to the present invention includes a first member 22 made of a porous ceramic, a second member 24 made of a metal, and a joint 30 formed of an oxide ceramic of a transition metal, the joint 30 joining the first member 22 to the second member 24. Alternatively, a joined body may include a first member made of a dense material, a second member made of a dense material, and a joint formed of an oxide ceramic of a transition metal, the joint joining the first member to the second member.Type: GrantFiled: September 17, 2015Date of Patent: September 24, 2019Assignee: NGK Insulators, Ltd.Inventors: Yunie Izumi, Yoshimasa Kobayashi, Kenji Morimoto, Shinji Kawasaki
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Publication number: 20190276369Abstract: A method for producing an oriented AlN sintered body includes a first step of preparing a formed body by forming a mixture obtained by mixing a sintering aid with an AlN raw-material powder containing a plate-like AlN powder whose plate surface is a c-plane and which has an aspect ratio of 3 or more and an average thickness of 0.05 to 1.8 ?m, wherein the mixture is formed such that the plate surface of the plate-like AlN powder is disposed along a surface of the formed body; and a second step of obtaining an oriented AlN sintered body by subjecting the formed body to hot-press sintering in a non-oxidizing atmosphere while applying a pressure to the surface of the formed body.Type: ApplicationFiled: May 23, 2019Publication date: September 12, 2019Applicant: NGK INSULATORS, LTD.Inventors: Yoshimasa Kobayashi, Hiroharu Kobayashi, Kazuki Iida
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Publication number: 20190270676Abstract: In a first step of a method for producing a transparent AlN sintered body, first, a formed body is prepared by forming a mixture obtained by mixing a sintering aid with an AlN raw-material powder containing a plate-like AlN powder whose plate surface is a c-plane and which has an aspect ratio of 3 or more. At this time, the mixture is formed such that the plate surface of the plate-like AlN powder is disposed along a surface of the formed body. In a second step, an oriented AlN sintered body is obtained by subjecting the formed body to hot-press sintering in a non-oxidizing atmosphere while applying a pressure to the surface of the formed body. In a third step, a transparent AlN sintered body is obtained by sintering the oriented AlN sintered body at normal pressure in a non-oxidizing atmosphere to remove a component derived from the sintering aid.Type: ApplicationFiled: May 22, 2019Publication date: September 5, 2019Applicant: NGK INSULATORS, LTD.Inventors: Yoshimasa KOBAYASHI, Hiroharu Kobayashi, Kazuki IIDA, Iwao Ohwada
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Publication number: 20190252098Abstract: A method of producing a magnetic material of compound having magnetocaloric effect is disclosed. The method may include producing a product by reacting a raw material that is to constitute the magnetic material in melt including an alkali metal; and removing the alkali metal after the product is cooled.Type: ApplicationFiled: April 29, 2019Publication date: August 15, 2019Applicant: NGK INSULATORS, LTD.Inventors: Yoshio KIKUCHI, Yoshimasa KOBAYASHI
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Publication number: 20190249907Abstract: A magnetic member for a magnetic refrigerator may include a tubular outer layer and a wall body having magnetocaloric effect. The wall body may extend along an axial direction of the outer layer inside the outer layer and partition an inner space of the outer layer into a plurality of spaces. The wall body may be unitary and define a plurality of passages that extend in the axial direction inside the outer layer.Type: ApplicationFiled: April 29, 2019Publication date: August 15, 2019Applicant: NGK INSULATORS, LTD.Inventors: Yoshio Kikuchi, Yoshimasa Kobayashi
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Publication number: 20190224944Abstract: A thermal transfer sheet including a dye layer and a transfer layer on a substrate. The transfer layer has a protective layer and an adhesive layer containing two or more resin components. One of the resin components is a copolymer of a reactive ultraviolet absorbing agent and an acrylic monomer. In the copolymer, the copolymerization ratio of the reactive ultraviolet absorbing agent is in the range of 10% or more and 50% or less on a molar ratio basis and the copolymerization ratio of the acrylic monomers is in the range of 50% or more and 90% or less on a molar ratio basis. The content of the copolymer of the reactive ultraviolet absorbing agent and the acrylic monomer is specified in the range of 50% by mass or more and 90% by mass or less on the basis of the total mass of the adhesive layer.Type: ApplicationFiled: September 22, 2017Publication date: July 25, 2019Applicant: Dai Nippon Printing Co., Ltd.Inventor: Yoshimasa KOBAYASHI
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Patent number: 10357216Abstract: According to one embodiment, a mammography apparatus includes an X-ray, an imaging stage, a pressing plate, a guide information generator, and an X-ray detection unit. The X-ray tube generates X-rays. The imaging stage supports a breast. The pressing plate presses the breast supported on the imaging stage. The guide information generator provides the imaging stage with guide information for guiding a placement position of the breast. The guide information is generated based on a nipple position, an image start position, and an image end position of a previous image of the breast. The X-ray detection unit generates X-ray projection data by detecting X-rays transmitted through the breast by an X-ray detector.Type: GrantFiled: December 19, 2016Date of Patent: July 23, 2019Assignee: Toshiba Medical Systems CorporationInventors: Atsuko Sugiyama, Yoshimasa Kobayashi, Mariko Shibata, Toshie Maruyama
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Patent number: 10342503Abstract: An X-ray image processing apparatus includes a storage unit, a transformed image generation unit, a scattered ray image generation unit, and a scattered ray reduced image generation unit. The storage unit stores a medical image. The transformed image generation unit generates a transformed image by transforming pixel values, of a plurality of pixel values constituting the medical image, which are higher than a reference value obtained based on a representative value of the plurality of pixel values into pixel values lower than the reference value. The scattered ray image generation unit generates a scattered ray image based on the transformed image and a scattering function. The scattered ray reduced image generation unit generates a scattered ray reduced image with reduced scattered rays by using the medical image and the scattered ray image.Type: GrantFiled: September 3, 2014Date of Patent: July 9, 2019Assignee: Toshiba Medical Systems CorporationInventors: Yoshimasa Kobayashi, Hisanori Kato, Shumpei Ohashi
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Patent number: 10301992Abstract: A heater includes: a plate-like first heater substrate; an electrical heating wire that is provided on a first surface of the first heater substrate in a parallel circuit; electrodes that are connected to the electrical heating wire to allow current to flow in the electrical heating wire; and a plate-like cover substrate that covers the first surface of the first heater substrate, the electrical heating wire, and the electrodes with a second surface thereof. The electrical heating wire of the heater generates heat, so that the amount of heat is supplied. A honeycomb structure includes at least one heater that is provided so as to surround an outer wall thereof.Type: GrantFiled: February 7, 2017Date of Patent: May 28, 2019Assignee: NGK Insulators, Ltd.Inventors: Naoya Takase, Yoshimasa Kobayashi, Yasuho Aoki
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Patent number: 10245810Abstract: A heat-resistant member according to the present invention includes a member to be protected and a metal oxide ceramic protective layer which is disposed on part of or all surfaces of the member to be protected and which has a porosity of 0 percent by volume or more and 5 percent by volume or less. This heat-resistant member is produced through the step of forming a protective layer by firing a member to be protected provided with a metal raw material in the air in a temperature range lower than the melting point of an oxide of the metal raw material to form a metal oxide ceramic protective layer having a porosity of 0 percent by volume or more and 5 percent by volume or less on part of or all surfaces of the member to be protected.Type: GrantFiled: February 13, 2015Date of Patent: April 2, 2019Assignee: NGK Insulators, Ltd.Inventors: Yunie Izumi, Yoshimasa Kobayashi
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Patent number: 10242763Abstract: A joined body 20 includes a first member 22 having a thermal expansion coefficient of 8 ppm/K or less, a second member 24 having a thermal expansion coefficient of 12 ppm/K or more, and a joining portion 30 composed of an electrically conductive oxide containing 50% by mass or more of a spinel-type ferrite phase, the joining portion 30 joining the first member and the second member. The electrically conductive oxide preferably contains Fe and element A (where element A represents one or more selected from the group consisting of Mg, Mn, Co, Ni, Cu, and Zn). The molar ratio of element A to Fe, i.e., A/Fe, is 0.5 or less.Type: GrantFiled: March 2, 2016Date of Patent: March 26, 2019Assignee: NGK Insulators, Ltd.Inventors: Yunie Izumi, Yoshimasa Kobayashi
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Patent number: 10208878Abstract: A joined body 10 includes a ceramic body 12, a metal member 14, and a joint portion 15 that joins the ceramic body 12 and the metal member 14 together. The joint portion 15 includes a first joint layer 16 joined to the ceramic body 12 and a second joint layer 18 joined to the metal member 14. The first joint layer 16 is disposed on the ceramic body 12 side and contains an alloy that contains Fe and Cr as main components, and a compound having a thermal expansion coefficient of 4.0×10?6 (/° C.) or lower is dispersed in the first joint layer 16. The second joint layer 18 is disposed on the metal member 14 side, contains an alloy that contains Fe and Cr as main components, and has a larger thermal expansion coefficient than the first joint layer 16.Type: GrantFiled: March 22, 2017Date of Patent: February 19, 2019Assignee: NGK Insulators, Ltd.Inventors: Yoshimasa Kobayashi, Kisuke Yamamoto, Yunie Izumi, Takashi Noro
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Patent number: 10178977Abstract: According to an embodiment, a grid is provided between an X-ray generator and a flat panel detector. Processing circuitry configured to convert original image based on X-rays having passed through the grid and detected into a plurality of pieces of frequency band data, remove interference fringes contained in at least one piece of frequency band data among the pieces of frequency band data, reduce noise contained in the pieces of frequency band data, correct a scattered radiation of the original image based on a scattered radiation contained in the X-rays having passed through the grid and a scattered radiation contained in X-rays having passed through a grid that removes scattered radiation to a larger extent than the grid, and synthesize a plurality of pieces of frequency band data to generate image.Type: GrantFiled: April 24, 2015Date of Patent: January 15, 2019Assignee: Toshiba Medical Systems CorporationInventors: Hisanori Kato, Yasuhiro Sugawara, Yoshimasa Kobayashi
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Patent number: 10167235Abstract: A joined body 20 includes a porous ceramic 22 made of porous ceramic, a metal member 24 made of a metal, and a joint 30 formed of an oxide ceramic that penetrates into pores 23 of the porous ceramic 22 and joins the porous ceramic 22 to the metal member 24. The penetration depth of the oxide ceramic into the pores of the porous ceramic is preferably 10 ?m or more, and more preferably 15 to 50 ?m. The joined body 20 may be produced through a joining step of forming a joint by placing a metal raw material between a porous ceramic and a metal member and firing the metal raw material in the air at a temperature in the range of 400° C. to 900° C., where an oxide ceramic produced by oxidation of the metal raw material penetrates into the pores of the porous ceramic in the joint.Type: GrantFiled: September 9, 2015Date of Patent: January 1, 2019Assignee: NGK Insulators, Ltd.Inventors: Yunie Izumi, Yoshimasa Kobayashi, Kenji Morimoto, Shinji Kawasaki
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Publication number: 20180368788Abstract: According to one embodiment, an X-ray diagnostic apparatus includes an X-ray movable diaphragm and processing circuitry. The X-ray movable diaphragm limits an irradiation field of an X-ray. The processing circuitry sets an FOV size related to the irradiation field, sets a virtual field of view having the FOV size, the virtual field of view being able to include an outside region of an X-ray detection region and at least a part of the X-ray detection region, and controls the X-ray movable diaphragm so as to apply the X-ray to a common region between the virtual field of view and the X-ray detection region.Type: ApplicationFiled: June 21, 2018Publication date: December 27, 2018Applicant: Canon Medical Systems CorporationInventors: Yoshimasa KOBAYASHI, Kazunari Shima, Hayato Kasaoka, Takahiro Tanaka, Hisanori Kato, Nobuo Kobayashi, Norimitsu Kosugi
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Patent number: 10157465Abstract: A medical information processing system according to an embodiment includes a storage, and processing circuitry. The storage stores therein a mammography image of a breast of a patient and information indicating an image taking direction of the mammography image. The processing circuitry sets a region of interest in the mammography image. The processing circuitry specifies position information of the region of interest in a schematic drawing that schematically expresses the breast, on the basis of position information of the region of interest in the mammography image and the information indicating the image taking direction. The processing circuitry outputs the position information of the region of interest in the schematic drawing.Type: GrantFiled: December 28, 2015Date of Patent: December 18, 2018Assignee: Toshiba Medical Systems CorporationInventors: Atsuko Sugiyama, Yoshimasa Kobayashi, Yoshinori Nakatani, Katsuhiko Fujimoto, Mariko Shibata, Natsuki Sato, Toshie Maruyama
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Publication number: 20180357762Abstract: An image processing apparatus according to an embodiment has processing circuitry configured to acquire three-dimensional medical image data; set coordinates of at least two or more elements to evaluate an evaluation target represented by the three-dimensional medical image data, on images of different positioning slices of the three-dimensional medical image data; calculate a measured value for evaluating the evaluation target based on the coordinates; and control a display to display the measured value.Type: ApplicationFiled: June 6, 2018Publication date: December 13, 2018Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Yoshimasa KOBAYASHI, Hisanori KATO
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Publication number: 20180338795Abstract: A breast X-ray imaging apparatus according to an embodiment includes processing circuitry. The processing circuitry collects three-dimensional image data of a breast of a subject. The processing circuitry detects a lesion from the three-dimensional image data. The processing circuitry derives a puncture path for inserting a puncture needle into the breast, by analyzing linearity in three-dimensional distribution of the lesion and based on an analysis result of the linearity.Type: ApplicationFiled: May 25, 2018Publication date: November 29, 2018Applicant: Canon Medical Systems CorporationInventors: Atsuko SUGIYAMA, Yoshimasa KOBAYASHI
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Patent number: 10115494Abstract: A composite body including a substrate and a forming portion which is composed of a composite phase containing a perovskite oxide and a metal oxide different from the perovskite oxide and which is formed on the substrate. The composite body may be a composite body manufactured by a manufacturing method including a forming step of firing in an oxidizing atmosphere, a laminated body in which an inorganic raw material powder containing a compound powder and a metal powder is disposed on a substrate so as to form a forming portion composed of a composite phase containing a perovskite oxide and a metal oxide different from the perovskite oxide on the substrate.Type: GrantFiled: March 6, 2015Date of Patent: October 30, 2018Assignee: NGK Insulators, Ltd.Inventors: Yunie Izumi, Yoshimasa Kobayashi
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Publication number: 20180263582Abstract: An image displaying system according to an embodiment includes an observation target device, a display device and processing circuitry. The display device is configured to display an image. The processing circuitry is configured to: arrange a three-dimensional model relating to the observation target device in a virtual space; acquire data indicating a relative positional relationship between an operator and the observation target device; generate an image of a three-dimensional model included in a blind area when viewed from the operator, based on the data indicating the relative positional relationship and on the three-dimensional model arranged in the virtual space; and display the image on the display device.Type: ApplicationFiled: March 12, 2018Publication date: September 20, 2018Applicant: CANON MEDICAL SYSTEMS CORPORATIONInventors: Yoshimasa Kobayashi, Hisato Takemoto, Toru Takahashi, Tomio Maehama, Hideaki Tanaka, Naoya Fujita, Manabu Tanaka