Patents Assigned to National Institute for Materials Science
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Publication number: 20230365844Abstract: An adhesive sheet includes cyclodextrin and a derivative polymer in which an alkyl group having a carbon number of 6 to 18 is introduced into a hydrophilic polymer, and at least a part of the alkyl group is in the form of inclusion with the cyclodextrin.Type: ApplicationFiled: October 4, 2021Publication date: November 16, 2023Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventor: Tetsushi TAGUCHI
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Publication number: 20230371382Abstract: Provided is a thermoelectric material which exhibits excellent thermoelectric characteristics at room temperature; a method for producing this thermoelectric material; and a thermoelectric power generation element using this thermoelectric material. In an embodiment of the present invention, a thermoelectric material contains an inorganic compound that contains magnesium (Mg), antimony (Sb) and/or bismuth (Bi), copper (Cu), and if necessary M (M is composed of at least one element that is selected from the group consisting of selenium (Se) and tellurium (Te)); and inorganic compound is represented by MgaSb2-b-cBibMcCud, wherein a, b, c and d satisfy 3?a 3.5, 0?b?2, 0?c?0.06, 0?d?0.1, and (b+1)?2.Type: ApplicationFiled: August 25, 2021Publication date: November 16, 2023Applicant: National Institute for Materials ScienceInventors: Takao Mori, Zihang Liu
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Patent number: 11804519Abstract: A crystalline multilayer structure having a high-quality crystalline layer and a semiconductor device employing such a crystalline multilayer structure are provided. A crystalline multilayer structure, including a first crystalline layer having a first crystal, and a second crystalline layer stacked on the first crystalline layer and having a second crystal, wherein the first crystal includes polycrystalline ?-Ga2O3 and the second crystal is a single crystal of a crystalline oxide.Type: GrantFiled: April 26, 2021Date of Patent: October 31, 2023Assignees: FLOSFIA INC., NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Yuichi Oshima, Katsuaki Kawara
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Patent number: 11796408Abstract: A method for cleaning a receptor layer of a surface stress sensor according to an embodiment of the present invention includes, in a surface stress sensor that detects a change in surface stress of a thin film, the change being caused by a receptor layer disposed on a surface of the thin film, causing at least a part of a surface region of the thin film to generate heat or supplying heat to the receptor layer from the outside of the surface stress sensor. This makes it possible to easily perform efficient cleaning of a surface stress sensor such as a sensor that performs detection using a piezoresistor while avoiding structural complications as much as possible.Type: GrantFiled: August 28, 2019Date of Patent: October 24, 2023Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Genki Yoshikawa, Takahiro Nemoto, Makito Nakatsu, Naoto Takeda, Kota Shiba, Kosuke Minami
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Publication number: 20230333032Abstract: The sample holder 30 comprises: a holder body 31 for holding the sample 17; an electrolyte introduction chamber 31b provided with an opening 31c that opens to a measurement region 17a of the sample; a retainer plate 33, which is provided with a through-hole 33a corresponding to the measurement region of the sample, for retaining the sample from the electron source side around the through-hole to sandwich the sample airtightly with the holder body; double sealing members 32 arranged between the surface of the holder body and the sample so as to surround the periphery of the measurement region of the sample; a differential exhaust pipe 35, which opens to a space between the sealing members on the surface of the holder body, for exhaust the space through the opening; and electrodes 19 for electrolysis made up of a bias application electrode 19a and an opposing electrode 36.Type: ApplicationFiled: August 19, 2021Publication date: October 19, 2023Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Akiko Nakamura, Taro Yakabe, Naoya Miyauchi
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Publication number: 20230333023Abstract: Provided is to perform an identification of a temperature and/or a material of a target object to be measured in a non-contact and simple manner. A relationship between a wavelength and an emissivity of thermal radiation such as infrared rays radiated from an object is determined by the material of the object. In the present invention, the identification is performed by using this. In other words, the object above can be achieved by comparing thermal radiation intensities at a plurality of wavelengths from the given object with a database in the present invention. The database is stored by measuring the thermal radiation intensities at the plurality of wavelengths and temperatures for a plurality of materials in advance. An external light source is not required, and the target to be measured itself is used as a thermal radiation light source in this measurement.Type: ApplicationFiled: September 13, 2021Publication date: October 19, 2023Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Tadaaki NAGAO, Duc Thien NGO, Ryo TAMURA, Tung Anh DOAN
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Publication number: 20230323198Abstract: A wavelength conversion member includes a support, and a wavelength conversion layer that includes a phosphor particle group and a sealing member to seal the phosphor particle group and that is provided directly or through an other layer on the support. A predetermined region, in which a cross-sectional area rate of the phosphor particle group is not less than 50%, is included in an arbitrary cross section of the wavelength conversion layer taken parallel to a thickness direction thereof. The predetermined region includes a rectangular region with a width of 700 ?m and a thickness of 50 ?m from a bottom surface of the wavelength conversion layer when a thickness of the wavelength conversion layer is not less than 50 ?m, or a rectangular region with a width of 700 ?m and a thickness equal to the thickness of the wavelength conversion layer when it is less than 50 ?m.Type: ApplicationFiled: September 30, 2020Publication date: October 12, 2023Applicants: TAMURA CORPORATION, NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Daisuke INOMATA, Rikiya SUZUKI, Yusuke ARAI, Yoshihiro YAMASHITA, Hiroyuki SAWANO, Kiyoshi SHIMAMURA, Encarnacion Antonia GARCIA VILLORA
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Publication number: 20230321611Abstract: The present invention provides a nonwoven fabric for a separation membrane which can prevent a bleed-through of a resin solution used for coating in a step of producing the separation membrane, can produce a separation membrane having a large permeate flux of a liquid by non-solvent induced phase separation, has high adhesiveness between a coating membrane and the nonwoven fabric, and can make the coating membrane thin, and a method of producing the same. In an exemplary aspect of the present invention, a two-layer nonwoven fabric 10 for a separation membrane is configured to have a surface layer 11 and a back surface layer 12, a coating surface of a coating solution during membrane formation is a surface 11a of the surface layer 11, and, when the nonwoven fabric 10 is impregnated with the coating solution for membrane formation, the surface layer 11 has a large Laplace force and the back surface layer 12 has a small Laplace force.Type: ApplicationFiled: January 28, 2022Publication date: October 12, 2023Applicants: NATIONAL INSTITUTE FOR MATERIALS SCIENCE, HIROSE PAPER MFG CO., LTD.Inventors: Izumi ICHINOSE, Edhuan BIN ISMAIL, Takako TSUBATA, Masataka SAKAMOTO, Yoshiki MIZUNO
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Publication number: 20230329115Abstract: Provided are a thermoelectric material having excellent thermoelectric characteristics at room temperature; a method for producing same; and a thermoelectric power generation element. In an embodiment of the present invention, the thermoelectric material contains an inorganic compound containing magnesium (Mg), silver (Ag), antimony (Sb) and copper (Cu), and is represented by the formula Mg1?aCuaAgbSbc, and the parameters a, b and c satisfy: 0<a?0.1, 0.95?b?1.05 and 0.95?c?1.05. The inorganic compound may be an a phase of a half-Heusler structure and have the symmetry of the space group I-4c2.Type: ApplicationFiled: August 25, 2021Publication date: October 12, 2023Applicant: National Institute for Materials ScienceInventors: Takao MORI, Zihang LIU
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Publication number: 20230311212Abstract: There is provided a method for manufacturing a turbine component which enables obtaining a single crystal structure more easily and manufacturing a good turbine component. In the seed crystal placing step, the seed crystal is placed on the surface of the base in a manner that a first direction along <001> of the seed crystal has an angle within 15 degrees in absolute value in relation to a laminating direction. In the shaped layer forming step, scanning is performed in a manner that the scan direction has an angle within 20 degrees in absolute value in relation to a second direction being <001> orthogonal to the first direction of the seed crystal.Type: ApplicationFiled: May 24, 2023Publication date: October 5, 2023Applicants: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION, NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Takehisa HINO, Hiroshi HARADA, Kyoko KAWAGISHI, Toshio OSADA, Tadaharu YOKOKAWA, Yutaka KOIZUMI, Makoto OSAWA, Toru TANAKA, Hideshi NAKANO, Rie SUMIYA, Kazuhiro KITAYAMA, Yoshiaki SAKAI, Akihiro SAKAMOTO
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Patent number: 11774346Abstract: In an analysis of a fluid component using a nanomechanical sensor covered with a receptor, the same receptor is caused to express different response characteristics. In a measuring system of analyzing a response when a sample gas and a purge gas are supplied to a nanomechanical sensor while switching the sample gas and the purge gas, a gas (external gas) different from both gases is mixed into a gas channel and supplied to the sensor for measurement. Since a response characteristic of a receptor is modulated by mixing of the external gas, the object described above is achieved.Type: GrantFiled: June 4, 2019Date of Patent: October 3, 2023Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Kosuke Minami, Gaku Imamura, Kota Shiba, Genki Yoshikawa
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Patent number: 11767582Abstract: The present invention provides a steel material which has a plate shape and achieves both high strength and high rigidity by imparting large nonuniform deformation to the steel material utilizing rolling using a large-diameter work roll.Type: GrantFiled: November 8, 2018Date of Patent: September 26, 2023Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Tadanobu Inoue, Hai Qiu, Rintaro Ueji
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Publication number: 20230287267Abstract: 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 29, 2023Publication date: September 14, 2023Applicants: Mitsubishi Chemical Corporation, NATIONAL INSTITUTE FOR MATERIALS SCIENCEInventors: Tomoyuki KURUSHIMA, Yuhei Inata, Naoto Hirosaki
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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