Patents Assigned to National Institute for Materials Science
  • Publication number: 20210199563
    Abstract: 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: Application
    Filed: June 4, 2019
    Publication date: July 1, 2021
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Kosuke MINAMI, Gaku IMAMURA, Kota SHIBA, Genki YOSHIKAWA
  • Publication number: 20210190655
    Abstract: Provided is a novel material analysis technique using a chemical sensor. By reversing the conventional approach, a material to be measured is provided as a receptor of the chemical sensor, and a response signal of the chemical sensor obtained by supplying a known gas or the like to the chemical sensor is obtained. From the response signal, it is possible to identify and distinguish the receptor material, and to obtain its composition and the like. By analyzing the response signal by means of a statistical or machine learning technique such as principal component analysis, linear discriminant analysis, or a support vector machine, the above-mentioned identification and the like can be performed with high accuracy.
    Type: Application
    Filed: June 4, 2019
    Publication date: June 24, 2021
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Kosuke MINAMI, Genki YOSHIKAWA, Gaku IMAMURA, Kota SHIBA
  • Patent number: 11037736
    Abstract: The present invention provides a lithium ion capacitor (LIC) that achieves high specific capacity and high energy density. The lithium ion capacitor according to the present invention includes a cathode, an anode arranged apart from the cathode, and a Li-ion electrolyte with which a space between the cathode and the anode is filled. The cathode is made of a composite of graphene and carbon nanotubes, the anode is made of a Li-doped composite of graphene and carbon nanotubes, and the mass ratio of the anode to the cathode is larger than 0 and less than 1.0.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: June 15, 2021
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Jie Tang, Yige Sun, Luchang Qin
  • Patent number: 11024462
    Abstract: A method of manufacturing a ceramic electronic component includes forming a dielectric layer including a plurality of ceramic nanosheets on a first electrode, treating the dielectric layer with an acid, and forming a second electrode on the dielectric layer, a ceramic electronic component, and an electronic device.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: June 1, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Yoon Chui Son, Minoru Osada, Takayoshi Sasaki, Chan Kwak, Doh Won Jung, Youngjin Cho
  • Patent number: 11008457
    Abstract: A self-supporting multifunctional film is provided based on natural poly-phenols such as tannic acid. The self-supporting film composition of the invention contains a tannic acid derivative in which 12% to 24% of hydroxyl groups in tannic acid are bonded via urethane bonds that are formed by way of reactions with cyanate groups. Preferably, the film composition further includes a precursor polymer and 45 to 65% by mass of tannic acid and 55 to 35% by mass of the precursor polymer. Preferably, the precursor polymer has a second linear hydrocarbon compound urethane-bonded to both ends of a first linear hydrocarbon compound, and more preferably a diisocyanate group having an oligoethyene glycol as a spacer. Preferably, the ratio of the urethane bonds contained in the precursor polymer to the hydroxyl groups contained in the tannic acid is (12:88) to (24:76) inclusive in terms of molar ratio.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: May 18, 2021
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Masanobu Naito, Joginder Bansal, Debabrata Payra
  • Publication number: 20210140081
    Abstract: A non-woven fabric including fibers including an aliphatic polyester that has at least two maximum values in a molecular weight distribution thereof, wherein the fibers have a fiber diameter falling within the range of 100 to 3000 nm. The non-woven fabric of the present invention has excellent biodegradability.
    Type: Application
    Filed: July 9, 2019
    Publication date: May 13, 2021
    Applicants: NATIONAL INSTITUTE FOR MATERIALS SCIENCE, NIPPON ZOKI PHARMACEUTICAL CO., LTD.
    Inventors: Koichiro UTO, Mitsuhiro EBARA, Mitsuru NAIKI, Takafumi KONISHI, Hitoshi YAMAMOTO
  • Patent number: 11004465
    Abstract: An object of the present invention is to provide a Magneto-Resistance (MR) element showing a high Magneto-Resistance (MR) ratio and having a suitable Resistance-Area (RA) for device applications. The MR element of the present invention has a laminated structure including a first ferromagnetic layer 16, a non-magnetic layer 18, and a second ferromagnetic layer 20 on a substrate 10, wherein the first ferromagnetic layer 16 includes a Heusler alloy, the second ferromagnetic layer 20 includes a Heusler alloy, the non-magnetic layer 18 includes a I-III-VI2 chalcopyrite-type compound semiconductor, and the non-magnetic layer 18 has a thickness of 0.5 to 3 nm, and wherein the MR element shows a Magneto-Resistance (MR) change of 40% or more, and has a resistance-area (RA) of 0.1 [??m2] or more and 3 [??m2] or less.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: May 11, 2021
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Shinya Kasai, Yukiko Takahashi, Pohan Cheng, Ikhtiar, Seiji Mitani, Tadakatsu Ohkubo, Kazuhiro Hono
  • Publication number: 20210130185
    Abstract: 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: Application
    Filed: March 4, 2019
    Publication date: May 6, 2021
    Applicant: National Institute for Materials Science
    Inventors: Hitoshi Yusa, Masashi Miyakawa
  • Patent number: 10996172
    Abstract: Surface-functionalized nano structures, arrays of the nanostructures, and method for using the arrays in surfaced-enhanced spectroscopy and dielectric sensing applications, such as surface-enhanced infrared absorption spectroscopy, are provided. The nanostructures are functionalized with specific binding moieties that are bound to the nanostructures via phosphonic acid linkers.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: May 4, 2021
    Assignees: NATIONAL INSTITUTE OF MATERIAL SCIENCE, Northwestern University
    Inventors: Robert P. H. Chang, Shiqiang Li, Peijun Guo, Kai Chen, Keiko Okano, Tadaaki Nagao
  • Publication number: 20210122975
    Abstract: Provided is a particulate phosphor including a single crystal having a composition represented by a compositional formula (Y1-x-y-zLuxGdyCez)3+aAl5?aO12 (0?x?0.9994, 0?y?0.0669, 0.001?z?0.004, ?0.016?a?0.315) and a particle diameter (D50) of not less than 20 ?m. Also provided is a light-emitting device including a phosphor-including member that includes the phosphor and a sealing member including a transparent inorganic material sealing the phosphor or a binder including an inorganic material binding particles of the phosphor, and a light-emitting element that emits a blue light for exciting the phosphor.
    Type: Application
    Filed: February 2, 2017
    Publication date: April 29, 2021
    Applicants: TAMURA CORPORATION, KOHA CO., LTD., National Institute for Materials Science
    Inventors: Daisuke INOMATA, Yusuke ARAI, Kiyoshi SHIMAMURA, Encarnacion Antonia GARCIA VILLORA
  • Publication number: 20210123991
    Abstract: The object of the present invention is to attain an unconventionally high tunnel magnetoresistance (TMR) ratio by using a barrier layer made of an MgAl2O4 type insulator material with a spinel structure. The problem can be solved by a magnetic tunnel junction in which a barrier layer is made of a cubic nonmagnetic material having a spinel structure, and both of two ferromagnetic layers that are adjacently on and below the barrier layer are made of a Co2FeAl Heusler alloy. Preferably, the nonmagnetic material is made of oxide of an Mg1-31 xAlx (0<x?1) alloy, and exhibits tunnel magnetoresistance of 250% or more and 34000% or less at a room temperature.
    Type: Application
    Filed: January 31, 2017
    Publication date: April 29, 2021
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Hiroaki SUKEGAWA, Thomas SCHEIKE, Seiji MITANI, Tadakatsu OHKUBO, Kazuhiro HONO, Kouichiro INOMATA
  • Publication number: 20210109416
    Abstract: An object of the present invention is to provide a novel electrochromic device (ECD).
    Type: Application
    Filed: March 15, 2019
    Publication date: April 15, 2021
    Applicants: National Institute for Materials Science, National Taiwan University
    Inventors: Masayoshi HIGUCHI, Hsin-Che LU, Kuo-Chuan HO
  • Publication number: 20210110975
    Abstract: Provided are a dielectric monolayer thin film, a capacitor and a semiconductor device each including the dielectric monolayer thin film, and a method of forming the dielectric monolayer thin film, the dielectric monolayer thin film including an oxide which is represented by Formula 1 and has a perovskite-type crystal structure, wherein the oxide has a surface chemically bonded with hydrogen. A2Bn?3CnO3n+1??<Formula 1> wherein, in Formula 1, A is a divalent element, B is a monovalent element, C is a pentavalent element, and n is a number from 3 to 8.
    Type: Application
    Filed: September 30, 2020
    Publication date: April 15, 2021
    Applicants: Samsung Electronics Co., Ltd., National Institute for Materials Science
    Inventors: Hyungjun KIM, Taniguchi TAKAAKI, Sasaki TAKAYOSHI, Osada MINORU, Chan KWAK, Youngnam KWON, Changsoo LEE
  • Patent number: 10968387
    Abstract: A phosphor, combined with LED having not exceeding 470 nm, of high emission intensity and with chemical and thermal stability is provided. The phosphor according to the present invention comprises an inorganic compound in which element A (A is one or two or more kinds of elements selected from Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, and Yb) is solid solved in an inorganic crystal including at least metal element M and non-metal element X and represented by MnXn+1 (3?n?52), an inorganic crystal having the same crystal structure, or an inorganic crystal including a solid solution thereof. Here, M comprises at least Al and Si, and if necessary element L (L is a metal element other than Al and Si) and X comprises N, O if necessary, and element Z if necessary (Z is a non-metal element other than N and O).
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: April 6, 2021
    Assignee: National Institute for Materials Science
    Inventors: Naoto Hirosaki, Yuichi Michiue, Shiro Funahashi, Takashi Takeda
  • Publication number: 20210088552
    Abstract: The present invention focuses on a material constituting a contact pin and a processing technique of the material, and is directed to manufacturing a conductive member by using a material and a processing technique which are different from those in the related art. The conductive member is obtained by applying etching treatment to a copper-silver alloy including copper and silver while using at least copper alloy etching liquid, but silver etching liquid may also be selectively added to the copper alloy etching liquid.
    Type: Application
    Filed: July 9, 2018
    Publication date: March 25, 2021
    Applicants: Kyosei Co., Ltd., National Institute of Materials Science
    Inventors: Tsutomu SATO, Yoshikazu SAKAI, Akihiro KIKUCHI
  • Publication number: 20210079508
    Abstract: 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: Application
    Filed: July 10, 2018
    Publication date: March 18, 2021
    Applicant: National Institute for Materials Science
    Inventors: Hidetoshi Somekawa, Yoshiaki Osawa
  • Publication number: 20210036217
    Abstract: According to one embodiment, a magnetic element includes a first layer and a second layer. The first layer includes a first element and a second element. The first element includes at least one selected from the group consisting of Fe, Co, and Ni. The second element includes at least one selected from the group consisting of Ir and Os. The second layer is nonmagnetic.
    Type: Application
    Filed: February 15, 2018
    Publication date: February 4, 2021
    Applicants: National Institute of Advanced Industrial Science and Technology, TOHOKU UNIVERSITY, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Takayuki NOZAKI, Shinji YUASA, Rachwal Anna KOZIOL, Masahito TSUJIKAWA, Masafumi SHIRAI, Kazuhiro HONO, Tadakatsu OHKUBO, Xiandong XU
  • Publication number: 20210025035
    Abstract: 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: Application
    Filed: August 20, 2018
    Publication date: January 28, 2021
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Ming-Zhe Bian, Taisuke Sasaki, Kazuhiro Hono, Shigeharu Kamado, Taiki Nakata
  • Publication number: 20210020193
    Abstract: Provided is a precursor of a current-perpendicular-to-plane giant magnetoresistive element having a laminated structure of ferromagnetic metal layer/nonmagnetic metal layer/ferromagnetic metal layer, the precursor having a nonmagnetic intermediate layer containing a non-magnetic metal and an oxide in a predetermined ratio such that the distribution thereof is nearly uniform at the atomic level. Also provided is a current-perpendicular-to-plane giant magnetoresistive element having a current-confinement structure (CCP) which has: a current confinement structure region made of a conductive alloy and obtained by heat-treating a laminated structure of a ferromagnetic metal layer and a nonmagnetic intermediate layer at a predetermined temperature; and a high-resistance metal alloy region containing an oxide and surrounding the current confinement structure region.
    Type: Application
    Filed: February 26, 2019
    Publication date: January 21, 2021
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Tomoya NAKATANI, Taisuke SASAKI, Takao FURUBAYASHI, Kazuhiro HONO
  • Publication number: 20210017448
    Abstract: A phosphor in which an element represented by R? is solid-solutionized in a phosphor host crystal represented by M?(L, A)?X?, wherein M is at least one type of element selected from Mg, Ca, Sr, Ba and Zn, L is at least one type of element selected from Li, Na and K, A is at least one type of element selected from Al, Ga, B, In, Sc, Y, La and Si, X is at least one type of element selected from O, N, F and Cl (where all of X being N is excluded), R is at least one type of element selected from Mn, Cr, Ti, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho and Yb, ?, ?, ? and ? satisfy ?+?+?+?=9, 0.00<??1.30, 3.70???4.30, 3.70???4.30, and 0.00<??1.30.
    Type: Application
    Filed: March 14, 2019
    Publication date: January 21, 2021
    Applicants: DENKA COMPANY LIMITED, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Hiroaki TOYOSHIMA, Ryo YOSHIMATSU, Taiyo YAMAURA, Masato AKABANE, Naoto HIROSAKI