Patents Assigned to National Institute for Materials Science
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Publication number: 20240117248Abstract: A phosphor having a favorable emission peak wavelength, narrow full width at half maximum, and/or high emission intensity is provided. Additionally, a light-emitting device, an illumination device, an image display device, and/or an indicator lamp for a vehicle having favorable color rendering, color reproducibility and/or favorable conversion efficiency are provided. The present invention relates to a phosphor including a crystal phase having a composition represented by a specific formula, and having a minimum reflectance of 20% or more in a specific wavelength region, in which the specific wavelength region is from the emission peak wavelength of the phosphor to 800 nm, and a light-emitting device comprising the phosphor.Type: ApplicationFiled: December 4, 2023Publication date: April 11, 2024Applicants: Mitsubishi Chemical Corporation, NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Tomoyuki KURUSHIMA, Yuhei Inata, Naoto Hirosaki
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Publication number: 20240117483Abstract: The problem addressed by the present invention is to provide a copper-coated aluminum wire material with a reduced weight and excellent adhesiveness, and a production method therefor. This copper-coated aluminum wire material is provided with an aluminum wire material comprising aluminum or an aluminum alloy and a thin copper film covering the aluminum wire material. The space factor of the thin copper film is in the range of 0.2% to 4% and the adhesiveness between the aluminum wire material and the thin copper film based on a scratch test compliant with JIS R 3255 is at least 10 mN.Type: ApplicationFiled: February 28, 2022Publication date: April 11, 2024Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Akihiro KIKUCHI, Hitoshi KITAGUCHI, Yasuo IIJIMA, Kazuto HIRATA
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Publication number: 20240101898Abstract: A phosphor having a favorable emission peak wavelength, narrow full width at half maximum, and/or high emission intensity is provided. Additionally, a light-emitting device, an illumination device, an image display device, and/or an indicator lamp for a vehicle having favorable color rendering, color reproducibility and/or favorable conversion efficiency are provided. The present invention relates to a phosphor including a crystal phase having a composition represented by a specific formula, and when, in a powder X-ray diffraction spectrum of the phosphor, the intensity of a peak that appears in a region where 2?=38-39° is designated as Ix and the intensity of a peak that appears in a region where 2?=37-38° is designated as Iy, the relative intensity Ix/Iy of Ix to Iy is 0.140 or less, and a light-emitting device comprising the phosphor.Type: ApplicationFiled: December 4, 2023Publication date: March 28, 2024Applicants: Mitsubishi Chemical Corporation, NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Tomoyuki Kurushima, Yuhei Inata, Naoto Hirosaki
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Publication number: 20240094126Abstract: The present invention has for its object to provide an inspection chip using a metasurface for detection of biomolecules by a fluorescence detection method. The inspection chip comprises a first substrate having a metasurface, and a second substrate positioned in opposition to the first substrate and having a microchannel, as shown in FIG. 1. The metasurface includes a gap for efficient immobilization of the biomolecules to be detected, and induces or develops fluorescence enhancement in a region including a wavelength range of fluorescence emitted by the biomolecules to be detected. The second substrate is formed of a material transparent to visible light or near infrared light, and the fluorescence resonates between the first substrate and second substrate.Type: ApplicationFiled: November 4, 2020Publication date: March 21, 2024Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventor: Masanobu IWANAGA
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Publication number: 20240097147Abstract: A positive electrode sheet for air batteries according to an embodiment of this invention comprises a waved fibrous carbon and has a BET method specific surface area in a range of 300 to 1200 m2/g, a 5 to 1000 nm-diameter pore surface area in a range of 200 to 600 m2/g, a 0.1 to 10 ?m-diameter pore volume in a range of more than 2.0 to no more than 10.0 cm3/g, a 2 to 1000 nm-diameter pore volume in a range of 1.0 to 5.0 cm3/g, and a sheet density in a range of 0.05 to 0.23 g/cm3.Type: ApplicationFiled: January 14, 2022Publication date: March 21, 2024Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Akihiro NOMURA, Yoshimi KUBO, Emiko FUJII
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Patent number: 11932479Abstract: To provide an inorganic solid material that has a hydrogen sulfide sustained releasability at ordinary temperature in the air atmosphere and is capable of being handled safely and a method for producing the same, and a method for generating hydrogen sulfide using the material. A layered double hydroxide having HS? and/or Sk2? (wherein k represents a positive integer) intercalated among layers (sulfide ion-containing LDH) is produced, and the sulfide ion-containing LDH is hermetically housed in a packaging material to provide a package. In generating hydrogen sulfide, the packaging material of the package is opened, and the sulfide ion-containing LDH is exposed to the air atmosphere to sustainably release hydrogen sulfide.Type: GrantFiled: June 28, 2019Date of Patent: March 19, 2024Assignees: NATIONAL INSTITUTE FOR MATERIALS SCIENCE, SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Shinsuke Ishihara, Nobuo Iyi, Daisuke Misho, Noriyuki Hayashizaka
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Publication number: 20240079198Abstract: The present invention provides an emitter made of a hafnium carbide (HfC) single crystal that stably emits electrons with high efficiency, a method for manufacturing the emitter, and an electron gun and an electronic device using the emitter. An emitter according to an embodiment of the present invention is an emitter including a nanowire, in which the nanowire is made of the hafnium carbide (HfC) single crystal, at least an end of the nanowire through which electrons are to be emitted is coated with hafnium oxycarbide (HfC1?xOx: 0<x?0.5), and a field electron emission pattern of the end obtained by a field emission microscope (FEM) is a single spot.Type: ApplicationFiled: June 29, 2020Publication date: March 7, 2024Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Jie TANG, Shuai TANG, Ta-Wei CHIU, Wataru HAYAMI, Luchang QIN
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Patent number: 11920219Abstract: The present invention provides a TiAl-based alloy, including: Al: 41 to 43 at %; Fe: 0 to 2.5 at %; Ni: 0 to 2.5 at %; Mo: 0 to 2.0 at %; W: 0 to 2.0 at %; Cr: 0 to 4.5 at %; Mn: 0 to 5.5 at %; V: 0 to 10 at %; Nb: 0 to 10 at %; C: 0.3 to 0.7 at %; and a remainder consisting of Ti and inevitable impurities, in which an alloy element parameter “P=(41.5?Al)/3+Fe+Ni+Mo+W+0.5 Cr+0.4 Mn+0.2 V+0.2 Nb—C” is in a composition range of 1.1 to 1.9, and the TiAl-based alloy has a microstructure consisting of a ? phase of 5 to 30 area %, a ? phase of 0.5 to 5 area %, and a lamellar structure occupying a remaining part.Type: GrantFiled: December 13, 2019Date of Patent: March 5, 2024Assignee: National Institute for Materials ScienceInventor: Toshimitsu Tetsui
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Patent number: 11915920Abstract: The present invention provides a simpler method for sharpening a tip of an emitter. In addition, the present invention provides an emitter including a nanoneedle made of a single crystal material, an emitter including a nanowire made of a single crystal material such as hafnium carbide (HfC), both of which stably emit electrons with high efficiency, and an electron gun and an electronic device using any one of these emitters. A method for manufacturing the emitter according to an embodiment of the present invention comprises processing a single crystal material in a vacuum using a focused ion beam to form an end of the single crystal material, through which electrons are to be emitted, into a tapered shape, wherein the processing is performed in an environment in which a periphery of the single crystal material fixed to a support is opened.Type: GrantFiled: October 20, 2020Date of Patent: February 27, 2024Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Jie Tang, Shuai Tang, Ta-Wei Chiu, Tadakatsu Ohkubo, Jun Uzuhashi, Kazuhiro Hono, Luchang Qin
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Patent number: 11913892Abstract: A condensation detection element comprises a condensation detection unit, the condensation detection unit being formed on a first substrate unit, and a peripheral circuit unit, the peripheral circuit unit being formed on a second substrate unit. The condensation detection unit comprises a thin wire electrode of a first metal and a thin wire electrode of a second metal. The condensation detection unit is configured to detect the presence or absence of water droplet that comes into contact with the thin wire electrode of the first metal and the thin wire electrode of the second metal by a current flowing between the thin wire electrode of the first metal and the thin wire electrode of the second metal. The first substrate unit has a higher thermal conductivity and a lower heat capacity than the second substrate unit.Type: GrantFiled: November 11, 2019Date of Patent: February 27, 2024Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventor: Jin Kawakita
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Patent number: 11898080Abstract: Provided is a phosphor which emits near-infrared light upon irradiation of visible light or ultraviolet light. A phosphor in an embodiment of the present invention includes an inorganic substance which contains at least an Eu element, an M[3] element (M[3] is at least one selected from the group consisting of Al, Y, La and Gd.), a Si element and nitrogen element, and also contains, if necessary, at least one element selected from the group consisting of M[1] element (M[1] is Li element.), an M[2] element (M[2] is at least one element selected from the group consisting of Mg, Ca, Ba and Sr.) and an oxygen element, while the phosphor has a maximum value of an emission peak at a wavelength in the range of 760 nm or more and 850 nm and less upon irradiation by an excitation source.Type: GrantFiled: March 16, 2020Date of Patent: February 13, 2024Assignee: National Institute for Materials ScienceInventor: Naoto Hirosaki
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Patent number: 11891555Abstract: A phosphor having a favorable emission peak wavelength, narrow full width at half maximum, and/or high emission intensity is provided. Additionally, a light-emitting device, an illumination device, an image display device, and/or an indicator lamp for a vehicle having favorable color rendering, color reproducibility and/or favorable conversion efficiency are provided. The present invention relates to a phosphor including a crystal phase having a composition represented by a specific formula, and having a minimum reflectance of 20% or more in a specific wavelength region, in which the specific wavelength region is from the emission peak wavelength of the phosphor to 800 nm, and a light-emitting device comprising the phosphor.Type: GrantFiled: March 30, 2023Date of Patent: February 6, 2024Assignees: Mitsubishi Chemical Corporation, NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Tomoyuki Kurushima, Yuhei Inata, Naoto Hirosaki
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Patent number: 11891554Abstract: A phosphor having a favorable emission peak wavelength, narrow full width at half maximum, and/or high emission intensity is provided. Additionally, a light-emitting device, an illumination device, an image display device, and/or an indicator lamp for a vehicle having favorable color rendering, color reproducibility and/or favorable conversion efficiency are provided. The present invention relates to a phosphor including a crystal phase having a composition represented by a specific formula, and having a minimum reflectance of 20% or more in a specific wavelength region, in which the specific wavelength region is from the emission peak wavelength of the phosphor to 800 nm, and a light-emitting device comprising the phosphor.Type: GrantFiled: March 29, 2023Date of Patent: February 6, 2024Assignees: Mitsubishi Chemical Corporation, NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Tomoyuki Kurushima, Yuhei Inata, Naoto Hirosaki
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Patent number: 11884857Abstract: A phosphor having a favorable emission peak wavelength, narrow full width at half maximum, and/or high emission intensity is provided. Additionally, a light-emitting device, an illumination device, an image display device, and/or an indicator lamp for a vehicle having favorable color rendering, color reproducibility and/or favorable conversion efficiency are provided. The present invention relates to a phosphor including a crystal phase having a composition represented by a specific formula, and when, in a powder X-ray diffraction spectrum of the phosphor, the intensity of a peak that appears in a region where 2?=38-39° is designated as Ix and the intensity of a peak that appears in a region where 2?=37-38° is designated as Iy, the relative intensity Ix/Iy of Ix to Iy is 0.140 or less, and a light-emitting device comprising the phosphor.Type: GrantFiled: March 30, 2023Date of Patent: January 30, 2024Assignees: Mitsubishi Chemical Corporation, National Institute for Materials ScienceInventors: Tomoyuki Kurushima, Yuhei Inata, Naoto Hirosaki
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Patent number: 11889762Abstract: The present disclosure provides: a magnetoresistive element having a large magnetoresistance change ratio (MR ratio); and a magnetic sensor, a reproducing head and a magnetic recording and reproducing device.Type: GrantFiled: March 12, 2021Date of Patent: January 30, 2024Assignee: National Institute for Materials ScienceInventors: Yuya Sakuraba, Weinan Zhou, Kenichi Uchida, Kaoru Yamamoto
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Patent number: 11884856Abstract: A phosphor having a favorable emission peak wavelength, narrow full width at half maximum, and/or high emission intensity is provided. Additionally, a light-emitting device, an illumination device, an image display device, and/or an indicator lamp for a vehicle having favorable color rendering, color reproducibility and/or favorable conversion efficiency are provided. The present invention relates to a phosphor including a crystal phase having a composition represented by a specific formula, and when, in a powder X-ray diffraction spectrum of the phosphor, the intensity of a peak that appears in a region where 2?=38-39° is designated as Ix and the intensity of a peak that appears in a region where 2?=37-38° is designated as Iy, the relative intensity Ix/Iy of Ix to Iy is 0.140 or less, and a light-emitting device comprising the phosphor.Type: GrantFiled: March 30, 2023Date of Patent: January 30, 2024Assignees: Mitsubishi Chemical Corporation, NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Tomoyuki Kurushima, Yuhei Inata, Naoto Hirosaki
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Patent number: 11879863Abstract: The present invention provides a method for analyzing a liquid sample that solves a problem of a kinetically slow equilibrium at a liquid-solid interface, the problem occurring when liquid sample analysis is performed with a chemical sensor. In the method for analyzing a liquid sample according to an embodiment of the present invention, a component to be analyzed in a liquid sample is adsorbed on a receptor layer of a chemical sensor, one or more kinds of gases are then supplied to the chemical sensor, and a response thereof is measured. As a result, since a slow equilibrium at a liquid-solid interface is not used, a high-sensitivity measurement can be performed in a short time, and existing findings regarding analysis of gas samples on which much progress in research has been achieved can be used.Type: GrantFiled: November 13, 2019Date of Patent: January 23, 2024Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Kosuke Minami, Genki Yoshikawa
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Publication number: 20240017896Abstract: A laminate (10) includes a substrate (11), a sealing layer (12A) disposed on a surface of the substrate (11), and a coating layer (13) disposed on a surface of the substrate (11) opposite to the sealing layer (12A). The coating layer (13) contains a tannic acid derivative in which at least a part of a plurality of hydroxyl groups is substituted with a linear hydrocarbon group having 1 to 18 carbon atoms, and at least one type of resin selected from the group consisting of a urethane resin, an acrylic resin, a vinyl chloride-vinyl acetate copolymer resin, a polyester resin, and an olefin resin.Type: ApplicationFiled: November 26, 2021Publication date: January 18, 2024Applicants: National Institute for Materials Science, DIC CorporationInventors: Masanobu Naito, Shin-ichi Ohara, Takashi Tamaoka, Hideoki Iwanami
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Patent number: 11867567Abstract: In a thermo-physical property measurement instrument, a light shield that shields from light except for an aperture is provided facing the front surface of a sample thin film of a sample. Heating light of repeated pulse that is output from a heating laser irradiates the sample thin film through the light shield. Temperature measurement light of continuous light that is output from a temperature measurement laser is applied to a measurement position a predetermined distance away from a heating light irradiation position on the sample thin film. A photodetector detects reflected light of the temperature measurement light off the sample thin film, and a computer acquires a thermo-reflectance signal that was digitally converted by an AD converter. The computer calculates a thermo-physical property value in the in-plane direction of the sample thin film of the sample on the basis of the acquired thermo-reflectance signal.Type: GrantFiled: December 4, 2019Date of Patent: January 9, 2024Assignees: NETZSCH Japan K.K., NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Yohei Kakefuda, Susumu Kawakami, Tetsuya Baba, Takao Mori
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Patent number: 11856664Abstract: The present invention is to provide a prevention method and a prevention system for preventing dew condensation and light scattering due to the dew condensation. According to one embodiment of the present invention, a fine liquid droplet capable of causing dew condensation is detected by a detection means for detecting a fine liquid droplet, and then the fine liquid droplet is removed on the basis of the detection. The detection means comprises a first thin wire made of a first metal, and a second thin wire made of a second metal or a semiconductor, the second metal is different from the first metal, the first thin wire and the second thin wire are disposed in juxtaposition with each other on an insulating substrate, and a spacing between the first thin wire and the second thin wire is in a range of 20 nm or more and 10000 nm or less.Type: GrantFiled: February 2, 2018Date of Patent: December 26, 2023Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Jin Kawakita, Toyohiro Chikyo