Patents Assigned to National Institute of Materials Science
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Publication number: 20230273183Abstract: An object of the present invention is to make it possible to easily determine a presence or absence of ketosis and/or the possibility of ketosis in an animal on site or the like. Another object of the present invention is to provide an apparatus for performing the determination. A method for determining ketosis according to one embodiment of the present invention includes providing gas detection means with a gas generated from a body fluid collected from an animal (except for humans), and determining ketosis of the animal based on a composition of the gas generated from the body fluid using a response of the gas detection means to the gas generated from the body fluid.Type: ApplicationFiled: July 12, 2021Publication date: August 31, 2023Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Ryoh NAKAKUBO, Mitsuyoshi ISHIDA, Genki YOSHIKAWA, Kosuke MINAMI, Gaku IMAMURA, Hideki MATSUZAKA, Takahiro NEMOTO
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Patent number: 11740198Abstract: [Object] To provide a formaldehyde detecting sensor capable of constantly monitoring formaldehyde selectively and with high accuracy. [Solving Means] A formaldehyde detecting sensor according to the present invention includes: a reaction portion that contains at least a hydroxylamine salt and reacts with formaldehyde to generate an acid; and a response unit that includes an electrode carrying a carbon material, an electrical resistance value of the carbon material varying depending on the acid generated in the reaction portion, in which the hydroxylamine salt and the carbon material are separated from each other.Type: GrantFiled: August 24, 2018Date of Patent: August 29, 2023Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Shinsuke Ishihara, Jan Labuta, Takashi Nakanishi
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Patent number: 11739400Abstract: A magnesium alloy of the present invention has a structure, comprising: 0.5-2.0 wt % of Zn; 0.3-0.8 wt % of Ca; at least 0.2 wt % of Zr; and the remainder comprising Mg and unavoidable impurities, wherein a nanometer-sized precipitate comprising Mg, Ca and Zn dispersed on the (0001) plane of a magnesium matrix, thereby achieving both formability and strength in a range of temperatures including room temperature.Type: GrantFiled: August 20, 2018Date of Patent: August 29, 2023Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Ming-Zhe Bian, Taisuke Sasaki, Kazuhiro Hono, Shigeharu Kamado, Taiki Nakata
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Publication number: 20230250334Abstract: 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: March 30, 2023Publication date: August 10, 2023Applicants: Mitsubishi Chemical Corporation, NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Tomoyuki KURUSHIMA, Yuhei INATA, Naoto HIROSAKI
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Patent number: 11721516Abstract: The purpose of the present invention is to provide an emitter capable of easily and highly efficiently emitting electrons, an electron gun using same, and an electronic device. This emitter is provided with a cathode holder, and an acicular substance secured to the cathode holder. An end, to which the acicular substance is secured, of the cathode holder is bent at ? (?(°) satisfies 5<??70) that is an angle formed with respect to a cathode axis being the longitudinal direction of the cathode holder, the acicular substance is a single crystal nanowire or nanotube, and a relation L/T between the thickness T (?m) of the end of the cathode holder and a length L (?m) by which the acicular substance protrudes from the end satisfies 0.3?L/T?2.5.Type: GrantFiled: January 6, 2020Date of Patent: August 8, 2023Assignee: National Institute for Materials ScienceInventors: Han Zhang, Jie Tang, Daisuke Fujita, Yasushi Yamauchi, Luchang Qin
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Publication number: 20230242813Abstract: 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: March 30, 2023Publication date: August 3, 2023Applicants: Mitsubishi Chemical Corporation, NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Tomoyuki KURUSHIMA, Yuhei Inata, Naoto Hirosaki
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Publication number: 20230235221Abstract: 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: March 30, 2023Publication date: July 27, 2023Applicants: Mitsubishi Chemical Corporation, National Institute for Materials ScienceInventors: Tomoyuki KURUSHIMA, Yuhei Inata, Naoto Hirosaki
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Patent number: 11706986Abstract: The present invention provides a thermoelectric material excellent in heat resistance with less degradation of thermoelectric characteristics even in a high temperature environment. The thermoelectric material comprises a compound represented by a chemical formula Mg2Si1-xSnx (0<x<1) wherein at least one of the Si site and the Sn site of the compound is replaced with at least one of Sb and Bi, and an added Fe.Type: GrantFiled: October 5, 2017Date of Patent: July 18, 2023Assignees: Mitsuba Corporation, National Institute for Materials ScienceInventors: Satoki Tada, Yukihiro Isoda
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Publication number: 20230221268Abstract: The observation device comprises: a scanning electron microscope for detecting secondary electrons generated by irradiating the sample with an electron beam within the analysis chamber; a sample holder having a cell for housing the observation target gas, an open window of the cell, and a sample mounting part to which the sample can be mounted so as to block the open window; and an observation target ion detecting unit for irradiating the front surface of the sample with an electron beam in a state where the observation target gas in the cell contacts the back surface of the sample and detecting observation target ions derived from the observation target gas generated by the electron beam. In a state where the observation target gas is housed in the cell and the sample is mounted to the sample mounting part of the sample holder, the entire hydrogen cell can be sealed.Type: ApplicationFiled: April 28, 2021Publication date: July 13, 2023Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Akiko Nakamura, Yoshiharu Murase, Naoya Miyauchi, Taro Yakabe
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Patent number: 11697765Abstract: Phosphors include a CaAlSiN3 family crystal phase, wherein the CaAlSiN3 family crystal phase comprises at least one element selected from the group consisting of Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, and Yb.Type: GrantFiled: June 29, 2021Date of Patent: July 11, 2023Assignees: MITSUBISHI CHEMICAL CORPORATION, NATIONAL INSTITUTE FOR MATERIALS SCIENCE, NICHIA CORPORATION, CITIZEN ELECTRONICS CO., LTD.Inventors: Naoto Hirosaki, Kyota Ueda, Hajime Yamamoto
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Patent number: 11692256Abstract: Adding multiple solute elements could create fracture origin through formation of intermetallic compound due to bonding of added elements. While maintaining microstructure for activating non-basal dislocation movement, additive elements not to create fracture origin, but to promote grain boundary sliding are preferably found from among inexpensive and versatile elements. Provided is Mg-based wrought alloy material including two or more among group consisting of Mn, Zr, Bi, and Sn; and Mg and unavoidable constituents, having excellent room-temperature ductility and characterized by having finer crystal grain size in Mg parent phase during room-temperature deformation and in that mean grain size in matrix thereof is 20 ?m or smaller; rate of (?max??bk)/?max (maximum load stress (?max), breaking stress (?bk)) in stress-strain curve obtained by tension-compression test of the wrought material is 0.2 or higher; and resistance against breakage shows 200 kJ or higher.Type: GrantFiled: July 10, 2018Date of Patent: July 4, 2023Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Hidetoshi Somekawa, Yoshiaki Osawa
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Publication number: 20230203711Abstract: Provided are: a GaN crystal used in a substrate for a nitride semiconductor device having a horizontal device structure, such as a GaN-HEMT; and a GaN substrate used for the production of a nitride semiconductor device having a horizontal device structure, such as a GaN-HEMT. The GaN crystal and the GaN substrate each include a surface having an inclination of 10° or less from a (0001) crystal plane and an area of 5 cm2 or more, and have an Mn concentration of 1.0 × 1016 atoms/cm3 or higher but lower than 1.0 × 1019 atoms/cm3 and a total donor impurity concentration of lower than 5.0 × 1016 atoms/cm3.Type: ApplicationFiled: February 21, 2023Publication date: June 29, 2023Applicants: MITSUBISHI CHEMICAL CORPORATION, NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Yusuke TSUKADA, Yuichi Oshima, Yuuki Enatsu
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Patent number: 11661549Abstract: 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: September 13, 2022Date of Patent: May 30, 2023Assignees: Mitsubishi Chemical Corporation, NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Tomoyuki Kurushima, Yuhei Inata, Naoto Hirosaki
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Patent number: 11655416Abstract: 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: September 13, 2022Date of Patent: May 23, 2023Assignees: Mitsubishi Chemical Corporation, NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Tomoyuki Kurushima, Yuhei Inata, Naoto Hirosaki
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Publication number: 20230147626Abstract: An object of the present invention is to make it possible to easily evaluate silage fermentation quality on site or the like. In one embodiment of the present invention, a gas generated from silage is applied to a surface stress sensor, and the amount of either one of organic acids and nitrogen-containing compounds contained in the silage is determined. The surface stress sensor can detect trace components in a gas by a simple device configuration and in simple procedures. Therefore, by utilizing the fact that relationship between the content of these components and the fermentation quality is known, the evaluation of fermentation quality can be easily realized by the above measurement.Type: ApplicationFiled: March 19, 2021Publication date: May 11, 2023Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Ryo NAKAKUBO, Mitsuyoshi ISHIDA, Masanori TOHNO, Hisami KOBAYASHI, Genki YOSHIKAWA, Kosuke MINAMI, Gaku IMAMURA, Hideki MATSUZAKA, Takahiro NEMOTO
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Patent number: 11641009Abstract: A light-emitting device including a solid-state light source that emits light having a peak wavelength in the range of 480 nm or less and a fluorescent film that covers the solid-state light source and includes at least one kind of phosphor, wherein the fluorescent film includes at least one kind of near-infrared phosphor that is excited by light from the solid-state light source, has a peak wavelength in the range exceeding 700 nm, and has an emission spectrum with a full width at half maximum of 100 nm or more in a range including the peak wavelength.Type: GrantFiled: June 12, 2019Date of Patent: May 2, 2023Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, PHOENIX ELECTRIC CO., LTD., NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Takashi Fukuda, Tetsuya Gouda, Yuta Sakimoto, Naoto Hirosaki, Kohsei Takahashi
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Publication number: 20230127466Abstract: The device for observing permeation and diffusion path of observation target gas includes: a scanning electron microscope 15; an observation target ion detecting unit 20; an observation target gas supply unit 19; a diaphragm-type sample holder 12, to which the sample is mounted in attachable/detachable state, as a diaphragm dividing between the analysis chamber 11 and the observation target gas pipe 14; and a control unit 50. The control unit acquires a SEM image and at the same time detects the observation target gas, which diffuses within the sample and is discharged to the surface of the sample, by electron stimulated desorption, in a state where stress is applied to the sample due to differential pressure generated between the analysis chamber and the observation target gas pipe by supplying the observation target gas, and obtains an ESD image of the observation target ions.Type: ApplicationFiled: February 25, 2021Publication date: April 27, 2023Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Akiko Nakamura, Yoshiharu Murase, Hideaki Nishikawa, Taro Yakabe, Naoya Miyauchi
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Patent number: 11634617Abstract: The present invention has for its object to provide an adhesive composition that is based on a naturally occurring material less likely to have adverse influences on the human body and has a tensile shear strength (adhesive strength) of at least 1 MPa with respect to a variety of adherends. The present invention provides an adhesive composition including at least a first pack and a second pack, wherein the first pack contains a tannic acid derivative in which a hydrogen atom in at least some hydroxyl group of tannic acid is substituted by a chain hydrocarbon group having at least one hydroxyl group, and the second pack contains a hydrocarbon having at least two cyanate groups or a derivative of the hydrocarbon.Type: GrantFiled: December 20, 2017Date of Patent: April 25, 2023Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Masanobu Naito, Sandip Das, Debabrata Payra
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Patent number: 11629287Abstract: An object of the present invention is to provide a novel electrochromic device (ECD).Type: GrantFiled: March 15, 2019Date of Patent: April 18, 2023Assignees: National Institute for Materials Science, National Taiwan UniversityInventors: Masayoshi Higuchi, Hsin-Che Lu, Kuo-Chuan Ho
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Publication number: 20230101138Abstract: Provided is a polymer compound having a repeating unit represented by Formula 1A below: wherein in Formula 1A, Z1 represents a hydrogen atom or a monovalent group, R1 represents a group represented by Formula 1B, L1 represents a divalent group, n represents an integer of 1 or more, and in in Formula 1B, L2 represents a single bond or a divalent group, R2 represents a group selected from the group consisting of a hydroxy group and a group represented by *—OR3, R3 represents a hydrocarbon group which may have a hetero atom, a plurality of R3's may be bonded to each other to form a ring, * represents a bonding position, m represents an integer of 1 to 5, and a plurality of L1's and a plurality of R2's may be the same as or different from each other.Type: ApplicationFiled: February 4, 2021Publication date: March 30, 2023Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Masanobu NAITO, Siqian WANG