Patents Assigned to National Institute for Materials Science
  • Publication number: 20190263667
    Abstract: The invention has for its object to use an evaporation-spray drying process thereby providing layered silicate powder granules, each one containing a flat particle having an opening or recess in its surface center. Each of the layered silicate powder granule contains a flat particle including a layered silicate formed by evaporation-spray drying and a rheology modifier for modifying the crystal edge face of the layered silicate and having an opening or recess in its surface center.
    Type: Application
    Filed: September 4, 2017
    Publication date: August 29, 2019
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Hiroshi SAKUMA, Kenji TAMURA
  • Patent number: 10395809
    Abstract: Embodiments of the inventive concepts provide a flat perpendicular magnetic layer having a low saturation magnetization and a perpendicular magnetization-type tunnel magnetoresistive element using the same. The perpendicular magnetic layer is a nitrogen-poor (Mn1?xGax)Ny layer (0<x?0.5 and 0<y<0.1) formed by providing nitrogen (N) into a MnGa alloy while adjusting a nitrogen amount. The perpendicular magnetic layer can be formed flat.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: August 27, 2019
    Assignees: Samsung Electronics Co., Ltd., National Institute for Materials Science
    Inventors: Shigeki Takahashi, Yoshiaki Sonobe, Hiroaki Sukegawa, Hwachol Lee, Kazuhiro Hono, Seiji Mitani, Jun Liu
  • Publication number: 20190256367
    Abstract: The purpose of the present invention is to provide a method for synthesizing ammonia and an apparatus for the method. The method for synthesizing ammonia according to the present invention comprises: a step of melting a metal containing at least an alkali metal; and a step of supplying a hydrogen gas and a nitrogen gas to the molten metal.
    Type: Application
    Filed: June 28, 2017
    Publication date: August 22, 2019
    Applicant: National Institute for Materials Science
    Inventors: Fumio Kawamura, Takashi Taniguchi
  • Publication number: 20190259937
    Abstract: Provided is a magnetoresistance effect element in which a tunnel barrier layer stably has a cation disordered spinel structure. This magnetoresistance effect element includes a first ferromagnetic layer, a second ferromagnetic layer, and a tunnel barrier layer disposed between the first ferromagnetic layer and the second ferromagnetic layer. In addition, the tunnel barrier layer is an oxide of MgxAl1-x (0?x<1) and an amount of oxygen in the tunnel barrier layer is lower than an amount of oxygen in a fully oxidized state in which the oxide has an ordered spinel structure.
    Type: Application
    Filed: February 14, 2019
    Publication date: August 22, 2019
    Applicants: TDK CORPORATION, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Shinto ICHIKAWA, Katsuyuki NAKADA, Seiji MITANI, Hiroaki SUKEGAWA, Kazuhiro HONO, Tadakatsu OHKUBO
  • Publication number: 20190247537
    Abstract: A method of hemostasis includes the step of applying a hemostatic agent to an affected site of a subject, the hemostatic agent consisting of a first agent comprising a gelatin derivative having a hydrophobic group bonded to the gelatin via an imino group, wherein the gelatin derivative has (a) a weight average molecular weight of from 10,000 to 50,000, (b) the hydrophobic group, which is an alkyl group having 6 to 18 carbon atoms; and (c) a molar ratio of imino group/amino group of the gelatin derivative ranging from 1/99 to 30/70; and a second agent including a crosslinking agent for the gelatin derivative.
    Type: Application
    Filed: April 26, 2019
    Publication date: August 15, 2019
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventor: Tetsushi TAGUCHI
  • Patent number: 10377943
    Abstract: Disclosed is a redox-complementary electrochromic device exhibiting black-to-transmissive switching, wherein the device comprises an electrochromic layer and a redox-active material layer sandwiched between a transparent first electrode and a transparent secondary electrode, the electrochromic layer comprising an electrochromic Co-based metallo-supramolecular polymer represented by the formula (I), and the redox active material being capable of reacting with the electrochromic material to change the electrochromic material from black state into colorless transmissive state, where in the formula (I), X represents a counter anion, R represents a single bond or a spacer comprising a carbon atom and a hydrogen atom, each of R1 to R4 independently represents a hydrogen atom or a substituent group, and n represents an integer of from 2 to 5000, which indicates a degree of polymerization.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: August 13, 2019
    Assignees: NATIONAL INSTITUTE FOR MATERIALS SCIENCE, NATIONAL TAIWAN UNIVERSITY
    Inventors: Masayoshi Higuchi, Sheng-Yuan Kao, Kuo-Chuan Ho
  • Patent number: 10381529
    Abstract: A light-emitting device includes a light-emitting element that emits blue light, a Mn2+-activated ?-AlON green phosphor, and a dispersing material in which the green phosphor is dispersed. The green phosphor has an in-crystal Mn concentration of 2.5 wt % or more. The shortest path of the blue light through the dispersing material is 1 mm long or shorter.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: August 13, 2019
    Assignees: SHARP KABUSHIKI KAISHA, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Kenichi Yoshimura, Makoto Izumi, Hiroshi Fukunaga, Naoto Hirosaki
  • Patent number: 10381528
    Abstract: The present invention provides a light emitting device that makes it possible to provide an image display apparatus having a wide color reproduction range. The light emitting device includes a light emitting element that emits blue light; a Mn2+-activated ?-AlON phosphor that is a green phosphor; and a Mn4+-activated phosphor that is a red phosphor. The green light emitted by the Mn2+-activated ?-AlON phosphor has an emission-spectrum peak wavelength of not less than 518 nm and not more than 528 nm.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: August 13, 2019
    Assignees: SHARP KABUSHIKI KAISHA, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Kenichi Yoshimura, Shigetoshi Ito, Makoto Izumi, Masamichi Harada, Hiroshi Fukunaga, Naoto Hirosaki
  • Publication number: 20190237099
    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: Application
    Filed: June 23, 2017
    Publication date: August 1, 2019
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Shinya KASAI, Yukiko TAKAHASHI, Pohan CHENG, IKHTIAR, Seiji MITANI, Tadakatsu OHKUBO, Kazuhiro HONO
  • Patent number: 10358700
    Abstract: A thermal barrier-coated Ni alloy component includes: a substrate made of a Ni alloy containing Al; an intermediate layer formed on a surface of the substrate; and a thermal barrier layer made of a ceramic and formed on a surface of the intermediate layer. The intermediate layer includes a ?? layer, which is formed from a ??-Ni3Al phase on the surface on the thermal barrier layer side, and contains Pt.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: July 23, 2019
    Assignees: IHI CORPORATION, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Hiroki Yoshizawa, Akira Tateno, Akihiro Sato, Kota Sasaki, Masato Ishida, Yoshito Yasui, Hideyuki Murakami, Hiromichi Murakami
  • Patent number: 10343893
    Abstract: Low friction coating of the present invention includes a boron-doped zinc oxide thin film, wherein piezoelectric polarization in a vertical direction perpendicular to a film surface and a lateral direction horizontal to the film surface occurs and a magnitude of the piezoelectric polarization in the vertical direction is within 150 pm and a magnitude of the piezoelectric polarization in the lateral direction is within 100 pm at 90% or more of measurement points. This makes it possible to greatly decrease the friction in a nanometer order.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: July 9, 2019
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Michiko Sasaki, Masahiro Goto, Akira Kasahara, Masahiro Tosa
  • Patent number: 10340429
    Abstract: According to one embodiment of the present invention, the light emitting device includes an LED element, a side wall which surrounds the LED element, a phosphor layer which is fixed to the side wall with an adhesive layer therebetween, and is positioned above the LED element, and a metal pad as a heat dissipating member. The side wall includes an insulating base which surrounds the LED element and a metal layer which is formed on a side surface at the LED element side of the base, and is in contact with the metal pad and the adhesive layer. The adhesive layer includes a resin layer that includes a resin containing particles which have higher thermal conductivity than the resin or a layer that includes solder.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: July 2, 2019
    Assignees: KOHA CO., LTD., TAMURA CORPORATION, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Daisuke Inomata, Hiroaki Sano, Seitaro Yoshida, Kazuo Aoki, Kiyoshi Shimamura, Encarnacion Antonia Garcia Villora
  • Publication number: 20190178621
    Abstract: The purpose of the present invention is to measure a size of a liquid droplet easily and in a short period of time by combining outputs of multiple types of liquid droplet detectors having different size dependencies of a liquid droplet of detection signals. In one embodiment of the present invention, in the detector having a narrow gap width shown in FIG. 5(a), the electrodes are electrically conducted by the attachment of a small liquid droplet. On the other hand, in the detectors with a wide gap width shown in FIGS. 5(b) and 5(c), the electrodes are not electrically conducted unless a liquid droplet having a larger size is attached. By utilizing this, the size of a liquid droplet is determined. In a case where the liquid droplet is water, as a liquid droplet detector, for example, a detector of a type that detects a galvanic current by a cell formed by the attachment of water between the electrodes made of different kinds of metals may be used.
    Type: Application
    Filed: May 11, 2017
    Publication date: June 13, 2019
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Jin KAWAKITA, Toyohiro CHIKYO
  • Publication number: 20190172486
    Abstract: Disclosed is a perpendicularly magnetized film structure using a highly heat resistant underlayer film on which a cubic or tetragonal perpendicularly magnetized film can grow, comprising a substrate of a cubic single crystal substrate having a (001) plane or a substrate having a cubic oriented film that grows to have the (001) plane; an underlayer formed on the substrate from a thin film of a metal having an hcp structure in which the [0001] direction of the thin metal film forms an angle in the range of 42° to 54° with respect to the <001> direction or the (001) orientation of the substrate; and a perpendicularly magnetized layer located on the metal underlayer and formed from a cubic material selected from a Co-based Heusler alloy and a cobalt-iron (CoFe) alloy having a bcc structure a constituent material, and grown to have the (001) plane.
    Type: Application
    Filed: December 10, 2018
    Publication date: June 6, 2019
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Hiroaki SUKEGAWA, Zhenchao WEN, Seiji MITANI, Koichiro INOMATA, Takao FURUBAYASHI, Jason Paul HADORN, Tadakatsu OHKUBO, Kazuhiro HONO, Jungwoo KOO
  • Patent number: 10305027
    Abstract: According to one embodiment, a magnetoresistive element includes a first magnetic layer, a second magnetic layer, and a first nonmagnetic layer. The first nonmagnetic layer is provided between the first magnetic layer and the second magnetic layer. The first nonmagnetic layer includes an oxide including an inverse-spinel structure.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: May 28, 2019
    Assignees: Kabushiki Kaisha Toshiba, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Yushi Kato, Tadaomi Daibou, Yuuzo Kamiguchi, Naoharu Shimomura, Junichi Ito, Hiroaki Sukegawa, Mohamed Belmoubarik, Po-Han Cheng, Seiji Mitani, Tadakatsu Ohkubo, Kazuhiro Hono
  • Publication number: 20190145920
    Abstract: The present invention improves the sensitivity and the responsiveness of a dryness/wetness responsive sensor utilizing a galvanic current, allowing for downsizing of the dryness/wetness responsive sensor. Instead of the conventional structure in which an anode electrode and a cathode electrode are stacked with an intervening insulator, the present invention employs a structure in which both electrodes run in juxtaposition with each other on an insulating substrate in the form of, for example, a comb-shaped electrode as shown in the drawing. By utilizing a semiconductor manufacturing process or any other micro/nano-fabrication technology, an inter-electrode distance can be extremely shortened as compared with the conventional sensors, allowing enhancing the sensitivity per unit footprint of the electrodes. Accordingly, a decrease in the size of the dryness/wetness responsive sensor can be easily achieved.
    Type: Application
    Filed: December 19, 2018
    Publication date: May 16, 2019
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Jin KAWAKITA, Tadashi SHINOHARA, Toyohiro CHIKYO, Toshihide NABATAME, Akihiko OHI, Tomoko OHKI
  • Publication number: 20190127638
    Abstract: 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: Application
    Filed: August 6, 2018
    Publication date: May 2, 2019
    Applicants: MITSUBISHI CHEMICAL CORPORATION, NATIONAL INSTITUTE FOR MATERIALS SCIENCE, NICHIA CORPORATION, CITIZEN ELECTRONICS CO., LTD.
    Inventors: Naoto HIROSAKI, Kyota UEDA, Hajime YAMAMOTO
  • Patent number: 10267756
    Abstract: A dryness/wetness responsive sensor having decreased size, and improved sensitivity and responsiveness. The present invention comprises a thin wire of a first metal and a thin wire of a second metal, which is different from the first metal, wherein the thin wires run in juxtaposition with each other on an insulating substrate, and wherein the spacing between the first thin wire and the second thin wire is in the range of 5 nm or more and less than 20 ?m.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: April 23, 2019
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Jin Kawakita, Tadashi Shinohara, Toyohiro Chikyo, Toshihide Nabatame, Akihiko Ohi, Tomoko Ohki
  • Publication number: 20190115164
    Abstract: Provided are a novel method for manufacturing a stack of carbon nanotube and graphene that can improve a capacitor characteristic, an electrode material including the stack of carbon nanotube and graphene, and an electric double-layer capacitor using the same. A method for manufacturing a stack of graphene and carbon nanotube includes a step of dispersing the graphene in an aqueous MOH solution (M represents an element selected from a group consisting of Li, Na, and K) to adsorb MOH on the graphene, a step of heating the graphene with MOH adsorbed thereon that is obtained in the adsorption step in vacuum or in an inert atmosphere in a temperature range of 400° C. or more and 900° C. or less to form pores in the graphene, and a step of dispersing the carbon nanotube and the graphene with the pores that are obtained in the step of forming the pores in a dispersion medium to stack the carbon nanotube and the graphene with the pores.
    Type: Application
    Filed: September 21, 2016
    Publication date: April 18, 2019
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Jie TANG, Kun ZHANG, Jing LI, Jinshi YUAN, Luchang QIN, Norio SHINYA
  • Publication number: 20190112526
    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?5), 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: Application
    Filed: March 27, 2017
    Publication date: April 18, 2019
    Applicant: National Institute for Materials Science
    Inventors: Naoto Hirosaki, Yuichi Michiue, Shiro Funahashi, Takashi Takeda