Patents Assigned to National Institute for Materials
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Patent number: 12180402Abstract: Provided are a new phosphor having emission characteristics different from the conventional nitride or oxynitride phosphor, a manufacturing method, and a light-emitting device. In an embodiment, the phosphor may include inorganic substance having crystal represented by A26(D, E)51X86 including at least A, D, X (A is at least one kind of element selected from Mg, Ca, Sr, and Ba; and D is Si, and X is at least one kind of element selected from O, N, and F); and further includes, if necessary, E (E is at least one kind of element selected from B, Al, Ga, and In) wherein the crystal further includes M (M is at least one kind of element selected from Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, and Yb). Upon irradiation of excitation source, the maximum value of emission peak in a wavelength range from 630 nm to 850 nm may occur.Type: GrantFiled: March 31, 2020Date of Patent: December 31, 2024Assignee: National Institute for Materials ScienceInventors: Naoto Hirosaki, Takashi Takeda, Shiro Funahashi
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Publication number: 20240428965Abstract: The purpose of the present invention is to provide a niobium-aluminum precursor wire having properties such as expression of flexibility and ensuring a large single-wire length, as well as a twisted wire, a superconducting wire, and a superconducting twisted wire formed of the niobium-aluminum precursor wire. The present invention provides a niobium-aluminum precursor wire and a twisted wire using the same, the niobium-aluminum precursor wire including: a rod-like winding core (5) formed of a stabilized copper, or a stabilized copper and an unstabilized copper; a laminated body (3) that is wound around the winding core (5) and that is formed of an aluminum foil and a niobium foil laminated one on the other; and a covering body (1) that covers the circumference of the laminated body and that is formed of a stabilized copper, or a stabilized copper and an unstabilized copper. The volume ratio of the stabilized copper with respect to the unstabilized copper contained in the precursor wire is 0.5-2.Type: ApplicationFiled: September 6, 2022Publication date: December 26, 2024Applicants: NATIONAL INSTITUTE FOR MATERIALS SCIENCE, Japan Superconductivity Application Development Inc.Inventors: Akihiro KIKUCHI, Yasuo IIJIMA, Masaru YAMAMOTO, Masatoshi KAWANO, Masato OTSUBO
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Patent number: 12171810Abstract: The present invention addresses the problem of providing an angiogenesis promoter capable of exerting an excellent angiogenesis promoting effect without containing any growth factor. The present invention also addresses the problem of providing a therapeutic method. An angiogenesis promoter that comprises as an active ingredient at least one member selected from the group consisting of a gelatin derivative represented by formula 1 and a crosslinked product of the gelatin derivative: In formula 1: Gltn represents a gelatin residue; L represents a single bond or a divalent linking group; and R1 and R2 independently represent a hydrocarbon group having 1-20 carbon atoms or a hydrogen atom, provided that at least one of R1 and R2 represents the aforesaid hydrocarbon group.Type: GrantFiled: October 2, 2019Date of Patent: December 24, 2024Assignee: National Institute for Materials ScienceInventor: Tetsushi Taguchi
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Publication number: 20240395494Abstract: The purpose of the present invention, relating to lanthanide boride, which is known as a low work function material, is to provide a novel low work function material with low chemical reactivity, in particular a low work function material of which the material surface, after being exposed to atmospheric gases, can be cleaned at a heating temperature lower than in the prior art. The present invention is a laminate containing a lanthanide boride film formed on a substrate, the surface of said film being covered by a thin film, wherein the thin film is a monatomic layer of a hexagonal boron nitride thin film.Type: ApplicationFiled: September 20, 2022Publication date: November 28, 2024Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Katsumi NAGAOKA, Takashi AIZAWA, Shun-ichiro OHMI
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Publication number: 20240384167Abstract: A phosphor includes a crystal phase having a composition represented by RexMAaMBbMCcDdXe, in which MA includes at least one of Ca, Sr, Ba, Na, K, Y, Gd, or La, MB includes at least one of Li, Mg, or Zn, MC includes at least one of Al, Si, Ga, In, or Sc, D is N (nitrogen) and/or O (oxygen), X includes at least one of F, Cl, Br, or I, Re includes at least one of Eu, Ce, Pr, Tb, or Dy, and a, b, c, d, e, and x satisfy the specific expressions, respectively. In the phosphor, when a content of B (boron) is designated as b (mass ppm), a value of Log10(b) is 3.5 or less.Type: ApplicationFiled: July 29, 2024Publication date: November 21, 2024Applicants: Mitsubishi Chemical Corporation, National Institute for Materials ScienceInventors: Kyota Ueda, Tomoyuki Kurushima, Atsushi Ooishi, Naoto Hirosaki
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Publication number: 20240384166Abstract: A phosphor contains a crystal phase having a composition represented by RexMAaMBbMCcDdXe, and an element Z, in which a content of the element Z is 1,000 mass ppm or less, and the element Z includes at least one of Mo, W, Nb, Ta, Ni, Pt, or Ir. Regarding the composition, MA includes at least one of Ca, Sr, Ba, Na, K, Y, Gd, or La, MB includes at least one of Li, Mg, or Zn, MC includes at least one of Al, Si, Ga, In, or Sc, D is N (nitrogen) and/or O (oxygen), X includes at least one of F, Cl, Br, or I, and Re includes at least one of Eu, Ce, Pr, Tb, or Dy, and a, b, c, d, e, and x satisfy the specific expressions, respectively.Type: ApplicationFiled: July 29, 2024Publication date: November 21, 2024Applicants: Mitsubishi Chemical Corporation, National Institute for Materials ScienceInventors: Kyota Ueda, Tomoyuki Kurushima, Atsushi Ooishi, Naoto Hirosaki
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Patent number: 12146850Abstract: A detection apparatus includes: an electrode formation unit that is brought into contact with an object to form an electrode; a detection unit that constitutes an electrode pair with the electrode; a measurement unit that measures a current flowing between the electrode and the detection unit; and a determination unit that determines presence or absence of an abnormality related to bacteria attached to the object according to the current measured by the measurement unit.Type: GrantFiled: May 12, 2020Date of Patent: November 19, 2024Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventor: Akihiro Okamoto
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Patent number: 12142888Abstract: A joined body (10) includes an optical material (11) and a cooling material (12) that are capable of transmitting light and are joined together. At a joining interface between the optical material (11) and the cooling material (12), the joined body (10) is capable of transmitting light, and also an atom contained in the optical material (11) diffusively enters the cooling material (12) in such a degree that an interference fringe is not generated in the joined body (10). A diffusive entry length of an atom contained in the optical material (11) into the cooling material (12) may be in a range from approximately 1.0 nm to approximately 10 ?m.Type: GrantFiled: April 24, 2019Date of Patent: November 12, 2024Assignees: National Institute for Materials Science, Inter-University Research Institute Corporation National Institutes of Natural SciencesInventors: Hiroaki Furuse, Yuki Koike, Ryo Yasuhara
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Patent number: 12130270Abstract: An object of the present invention is to detect ammonia with high sensitivity and high selectivity using a nanomechanical sensor with a structure that is as simple as possible. A method for detecting ammonia according to an embodiment of the present invention comprises supplying a sample gas possibly containing ammonia to a nanomechanical sensor that detects a stress or a displacement using poly(methyl vinyl ether-alt-maleic anhydride) as a material of a receptor layer, and detecting presence or absence of ammonia or a content of ammonia in the sample gas based on an output signal from the nanomechanical sensor, in which the sample gas is a humidified sample gas with controlled relative humidity.Type: GrantFiled: May 8, 2020Date of Patent: October 29, 2024Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Gaku Imamura, Kosuke Minami, Kota Shiba, Genki Yoshikawa
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Publication number: 20240347306Abstract: A manufacturing method for an electron source according to the present disclosure includes steps of: (A) cutting out a chip from a block of an electron emission material, (B) fixing a first end portion of the chip to a distal end of a support needle, and (C) sharpening a second end portion of the chip. The step (A) includes forming first and second grooves which constitute first and second surfaces of the chip in the block by irradiating a surface of the block with an ion beam. The first end portion of the chip includes the first surface and the second surface with the surfaces forming an angle ? of 10 to 90°. The step (B) includes forming a joint between the distal end of the support needle and the first end portion of the chip.Type: ApplicationFiled: June 23, 2022Publication date: October 17, 2024Applicants: Denka Company Limited, NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Hiromitsu CHATANI, Daisuke ISHIKAWA, Jie TANG, Tadakatsu OHKUBO, Shuai TANG, Jun UZUHASHI, Kazuhiro HONO
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Patent number: 12104283Abstract: The invention provides networked polymeric nanofibers having a structure in which amorphous polymeric fibers are branched at multiple sites and having a diameter of from 1 nanometer to 100 nanometers. A solution of a polymer such as polystyrene in a good solvent thereof is rapidly frozen to form a nanoscale phase-separation structure of the polymer and the frozen solvent. The networked polymeric nanofibers can then be obtained upon removing the frozen solvent.Type: GrantFiled: December 3, 2019Date of Patent: October 1, 2024Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Izumi Ichinose, Xinsheng Peng, Sadaki Samitsu, Rui Zhang
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Patent number: 12105741Abstract: Provided is a method of extracting a relational formula that relates two material property parameters from a textbook document using a computer and storing the extracted relational formula in a material property relationship database, which method enables search in consideration of a quantitative relationship between material properties. The information processing method according to the present invention comprises inputting a relational formula representing a relation between a pair of material property parameters in a material property relationship database storing pairs of mutually related material property parameters. Equation information representing a relational formula is extracted from read input data, and multiple variables constituting a relational formula and a relational formula specifying that relation are extracted from the equation information.Type: GrantFiled: February 9, 2021Date of Patent: October 1, 2024Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventor: Michiko Yoshitake
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Publication number: 20240315244Abstract: An antiviral coating agent includes a tannic acid derivative including at least one organic group having 1 to 18 carbon atoms and a binder resin having a number-average molecular weight of 1,000 or more. The average number of the organic groups included in a molecule of the tannic acid derivative is, for example, 1 to 19.Type: ApplicationFiled: July 1, 2022Publication date: September 26, 2024Applicants: National Institute for Materials Science, DIC CorporationInventors: Masanobu Naito, Takehiro Fujita, Shin-ichi Ohara, Hiroki Kobayashi, Tatsuya Kouyama, Takashi Tamaoka
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Patent number: 12100488Abstract: The present invention provides a method and a device for estimating a value to be estimated associated with a specimen, by performing machine learning of a relationship between a value of an estimation object and an output corresponding thereto, based on an output from a chemical sensor with regard to a plurality of specimens for which specific values to be estimated are known, and using the result of the mechanical learning to estimate a specific value to be estimated on the basis of an output from the chemical sensor with regard to a given unknown specimen.Type: GrantFiled: November 21, 2017Date of Patent: September 24, 2024Assignee: National Institute for Materials ScienceInventors: Kota Shiba, Ryo Tamura, Gaku Imamura, Genki Yoshikawa
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Publication number: 20240313229Abstract: The present invention addresses the problem of providing an oxygen channel for air cells, the oxygen channel having high aperture ratios (specifically, high planar aperture ratio and high cross-sectional aperture ratio), specifically, an oxygen channel for air cells, wherein both the planar aperture ratio and the cross-sectional aperture ratio are 50% or more, preferably 60% or more. The present invention provides an oxygen channel for air cells, the oxygen channel being composed of a structure that comprises two kinds of resin fibers having different fiber diameters in a mesh form, wherein the ratio of the fiber diameter of resin fibers having the larger fiber diameter to the fiber diameter of resin fibers having the smaller fiber diameter is within the range from 1.2 to 7.Type: ApplicationFiled: December 17, 2021Publication date: September 19, 2024Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Shoichi MATSUDA, Eiki YASUKAWA, Shoji YAMAGUCHI, Hirofumi KAKUTA, Shuntaro MIYAKAWA
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Patent number: 12091325Abstract: Provided are a barium germanium oxide having a 3-4 eV band gap, a method for producing the same, a sintered body thereof, and a target thereof. The barium germanium oxide includes at least Ba, Ge, and O, includes a crystal represented by a general formula of ABO3 (here, A includes at least Ba and B includes at least Ge), and has a hexagonal 6H-type perovskite structure.Type: GrantFiled: March 4, 2019Date of Patent: September 17, 2024Assignee: National Institute for Materials ScienceInventors: Hitoshi Yusa, Masashi Miyakawa
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Publication number: 20240301163Abstract: Provided is a polymerizable composition comprising a norbornene-based monomer, rare earth element-containing particles having a number-based modal size of 0.05 ?m or more and less than 1.5 ?m, and a metathesis polymerization catalyst.Type: ApplicationFiled: November 9, 2021Publication date: September 12, 2024Applicants: RIMTEC Corporation, National Institute for Materials ScienceInventors: Masaki Takeuchi, Akihiro Kikuchi, Izumi Ichinose, Kazuto Hirata, Yasuo Iijima
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Publication number: 20240295515Abstract: An object of the present invention is to provide a droplet sensor and a condensation detection device having stable detection properties and a method for manufacturing the same. Even when the droplet sensor and the condensation detection device are mass-produced, the present invention enables reduction of manufacturing variation between the elements and enables high detection accuracy and high electrical output of the elements. A droplet sensor of the present invention includes: an insulating substrate; a first electrode having a first thin wire and a first current collector; and a second electrode having a second thin wire and a second current collector. The first electrode and the second electrode are disposed on the insulating substrate. The first thin wire and the second thin wire are alternately disposed in juxtaposition with each other on the insulating substrate. The droplet sensor senses a galvanic current flowing between the first thin wire and the second thin wire through a conductive droplet.Type: ApplicationFiled: June 28, 2022Publication date: September 5, 2024Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventor: Jin KAWAKITA
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Patent number: 12078627Abstract: The present invention suppresses an adverse effect caused when an additional gas such as water vapor is mixed in a sample gas or the like that is subjected to gas measurement. In an embodiment of the present invention, in gas measurement for analyzing sensor output signals obtained by alternately supplying a sample gas and a reference gas to a sensor element while alternately switching between the sample gas and the reference gas, the sample gas and the reference gas pass through a humidity equilibration device partitioned by a water vapor permeable membrane, and then are supplied to the sensor element. As a result, since both gases have substantially the same value of humidity at the time of being supplied to the sensor element, influences of water vapor are substantially cancelled out in signals output from the sensor element by the alternate supply of the sample gas and the reference gas.Type: GrantFiled: June 17, 2020Date of Patent: September 3, 2024Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Genki Yoshikawa, Takahiro Nemoto, Masaaki Matoba, Kosuke Minami
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Publication number: 20240288711Abstract: An objective of the present invention is to provide a method for manufacturing a soft ocular lens in which the surface of the lens is hydrophilized by means of plasma processing, wherein a substrate surface can be sufficiently hydrophilized by performing, once, a reaction between the substrate and a hydrophilic polymer. Another object of the present invention is to provide a soft ocular lens with sufficient hydrophilicity which comprises only one layer comprising a hydrophilic polymer on a substrate surface. A substrate comprising a hydrocarbon group-containing polysiloxane is subjected to plasma processing with an inert gas such as nitrogen, to form a radical including Si—CH2 on the substrate surface, and produce radical rearrangement with a hydrophilic polymer, thereby causing the hydrophilic polymer to bind to the substrate surface by recombination of a radical generated in the hydrophilic polymer with the substrate.Type: ApplicationFiled: March 28, 2022Publication date: August 29, 2024Applicants: NATIONAL INSTITUTE FOR MATERIALS SCIENCE, SEED CO., LTD.Inventors: Izumi ICHINOSE, Kunio JONIN, Risako YAMANAKA