Patents Assigned to National Institute for Materials Science
  • Patent number: 12044717
    Abstract: This method for analysis processing by using measured impedance spectrum data includes: a step for determining whether to reset the maximum value and/or the minimum value of logarithmic relaxation time corresponding to a measured logarithmic frequency on the basis of the measured impedance spectrum data; a step for setting the number of equal-interval divisions within the range of the logarithmic relaxation time set in the determination step; and a step for analyzing parameters R?, T, L, and Rl for the range of the set logarithmic relaxation time so as to satisfy a prescribed expression (A) by applying a regularized least-squares method.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: July 23, 2024
    Assignee: National Institute for Materials Science
    Inventor: Kiyoshi Kobayashi
  • Publication number: 20240240081
    Abstract: Provided are a phosphor emitting light having a wavelength of 600 nm or more in the red-to-nearinfrared range when irradiated with visible light or ultraviolet light; a method for producing same; a light emitting element using same; and a light emitting device using same. The phosphor includes an inorganic compound including A element, M element, D element, E element (A is at least one element selected from the group of Mg, Ca, Sr and Ba; M is at least one element selected from the group of Mn, Eu, Ce, Nd, Tb, Dy, Ho, Er, Tm and Yb; D is Si and/or Al; and E is O and/or N) and, if necessary, G element (G is Li), and represented by (A, M)aDdEeGg, (atomic fraction parameters a, d, e and g satisfy 2.4?a?4.8, 17.4?d?22.2, 26.2?e?28.6 and 0?g?3).
    Type: Application
    Filed: March 30, 2022
    Publication date: July 18, 2024
    Applicant: National Institute for Materials Science
    Inventors: Takayuki Nakanishi, Naoto Hirosaki, Takashi Takeda, Shiro Funahashi
  • Publication number: 20240242857
    Abstract: The present invention addresses the problem of providing: a superconducting connection structure of an Nb3Sn superconducting wire rod and an NbTi wire rod, the superconducting connection structure comprising no environmental load substances such as Pb and Cd; a method for producing this superconducting connection structure; and a nuclear magnetic resonance apparatus which uses this superconducting connection structure. A superconducting connection structure according to the present invention is provided with: a connection strip that comprises an Nb alloy strip to which an element M is added (wherein the element M is an element which increases the recovery temperature and the recrystallization temperature of Nb); an Nb3Sn superconducting wire rod that comprises an Nb3Sn superconducting core material; and an NbTi wire rod that comprises an NbTi core material.
    Type: Application
    Filed: May 11, 2022
    Publication date: July 18, 2024
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventor: Nobuya BANNO
  • Publication number: 20240212971
    Abstract: Provided is an electron gun chamber for a scanning electron microscope with (a) an electron source chamber; (b) an intermediate room; (c) an air lock valve installation part; (d) exhaust holes for a preliminary vacuum exhaust pump; and (e) an opening and closing means.
    Type: Application
    Filed: March 18, 2021
    Publication date: June 27, 2024
    Applicants: NATIONAL INSTITUTE FOR MATERIALS SCIENCE, Terabase Inc.
    Inventors: Han ZHANG, Yasushi YAMAUCHI, Yoshihiro ARAI
  • Patent number: 12016959
    Abstract: A sustained release sheet that includes a drug for treating nerve injury, wherein the sheet is applied to a nerve injury site, can maintain a high concentration of the drug over a long period, and promotes nerve regeneration without stimulating the nerves, even when the sheet is implanted in the periphery of the nerve injury site. Also provided is a production method for the sheet. This sustained drug release sheet for treating nerve injury is a sheet including a non-woven fabric that is formed from nanofibers each containing a drug such as vitamin B12 and a biocompatible polymer such as a biodegradable aliphatic polyester, and is implanted in the periphery of the nerve injury site to promote nerve regeneration.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: June 25, 2024
    Assignees: OSAKA UNIVERSITY, NATIONAL INSTITUTE FOR MATERIALS SCIENCE, NIPPON ZOKI PHARMACEUTICAL CO., LTD.
    Inventors: Hiroyuki Tanaka, Kiyoshi Okada, Hideki Yoshikawa, Koji Suzuki, Mitsuhiro Ebara
  • Patent number: 12007405
    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: Grant
    Filed: June 4, 2019
    Date of Patent: June 11, 2024
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Kosuke Minami, Genki Yoshikawa, Gaku Imamura, Kota Shiba
  • Patent number: 12009474
    Abstract: The invention relates to an electrolyte capable of improving the energy efficiency of a lithium air battery, and a lithium air battery using the electrolyte. An electrolyte for lithium air batteries according to the invention includes an amide-based organic solvent and lithium nitrate, wherein the concentration of lithium nitrate in the amide-based organic solvent satisfies a range of no less than 2 mol/L to no greater than 5.5 mol/L. A lithium air battery according to the invention includes an air electrode, a negative electrode including a lithium metal, and an electrolyte located between the air electrode and the negative electrode, wherein the electrolyte is provided by the aforesaid electrolyte.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: June 11, 2024
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventor: Shoichi Matsuda
  • Publication number: 20240186047
    Abstract: The present invention provides a current-perpendicular-to-plane giant magneto-resistive element that can use a high spin polarization (?) and spin asymmetry (?) at the interface between layers, and that has a multilayered structure for easy film thickness design. Used is a current-perpendicular-to-plane giant magneto-resistive element comprising: a substrate (11) made of an MgO substrate; and a giant magneto-resistive effect layer (17) that has at least one multilayer having first non-magnetic layers (13a), (13b), a lower ferromagnetic layer (14a), a lower Heusler alloy layer (14b), a second non-magnetic layer (15), an upper Heusler alloy layer (16b), and an upper ferromagnetic layer (16a) formed on the substrate (11).
    Type: Application
    Filed: March 1, 2022
    Publication date: June 6, 2024
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Yuichi FUJITA, Yuya SAKURABA, Yoshio MIURA, Taisuke SASAKI, Kazuhiro HONO
  • Publication number: 20240158954
    Abstract: The present invention provides: a multilayer film structure which has high crystallinity and planarity; and a method for producing this multilayer film structure. This multilayer film structure is provided with: an Si (111) substrate; a first thin film that is arranged on the Si (111) substrate, while being formed of a nitride material and/or aluminum; and a second thin film that is arranged on the first thin film, while being formed of a nitride material. An amorphous layer having a thickness of 0 nm or more but less than 1.0 nm are present on the Si (111) substrate; and the full width at half maximum (FWHM) of a rocking curve of the (0002) plane at the surface of this multilayer film structure is 1.50° or less.
    Type: Application
    Filed: October 27, 2020
    Publication date: May 16, 2024
    Applicants: TOSOH CORPORATION, National Institute for Materials Science
    Inventors: Yuya TSUCHIDA, Yuya SUEMOTO, Yoshihiro UEOKA, Masami MESUDA, Hideto KURAMOCHI, Takahiro NAGATA, Liwen SANG, Toyohiro CHIKYOW
  • Patent number: 11984294
    Abstract: 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: Grant
    Filed: June 29, 2020
    Date of Patent: May 14, 2024
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Jie Tang, Shuai Tang, Ta-Wei Chiu, Wataru Hayami, Luchang Qin
  • Patent number: 11975113
    Abstract: A wound dressing material includes a particle having a crosslinked gelatin derivative, the gelatin derivative having the structure represented by the following formula (1): GltnNH—CHR1R2??(1) wherein “Gltn” represents a gelatin residue, R1 represents an alkyl group having 1-17 carbon atoms, and R2 represents a hydrogen atom or an alkyl group having 1-17 carbon atoms, and the particle having a particle size ranging from 1 to 1,000 ?m.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: May 7, 2024
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Tetsushi Taguchi, Akihiro Nishiguchi
  • Patent number: 11975987
    Abstract: Single crystals of a new noncentrosymmetric polar oxysulfide SrZn2S2O (s.g. Pmn21) grown in a eutectic KF-KCl flux with unusual wurtzite-like slabs consisting of close-packed corrugated double layers of ZnS3O tetrahedra vertically separated from each other by Sr atoms and methods of making same.
    Type: Grant
    Filed: June 10, 2022
    Date of Patent: May 7, 2024
    Assignees: University of South Carolina, National Institute For Materials Science
    Inventors: Hans-Conrad Zur Loye, Yoshihiro Tsujimoto
  • Publication number: 20240117248
    Abstract: 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: Application
    Filed: December 4, 2023
    Publication date: April 11, 2024
    Applicants: Mitsubishi Chemical Corporation, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Tomoyuki KURUSHIMA, Yuhei Inata, Naoto Hirosaki
  • Publication number: 20240117483
    Abstract: 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: Application
    Filed: February 28, 2022
    Publication date: April 11, 2024
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Akihiro KIKUCHI, Hitoshi KITAGUCHI, Yasuo IIJIMA, Kazuto HIRATA
  • Publication number: 20240101898
    Abstract: 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: Application
    Filed: December 4, 2023
    Publication date: March 28, 2024
    Applicants: Mitsubishi Chemical Corporation, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Tomoyuki Kurushima, Yuhei Inata, Naoto Hirosaki
  • Publication number: 20240094126
    Abstract: 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: Application
    Filed: November 4, 2020
    Publication date: March 21, 2024
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventor: Masanobu IWANAGA
  • Publication number: 20240097147
    Abstract: 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: Application
    Filed: January 14, 2022
    Publication date: March 21, 2024
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Akihiro NOMURA, Yoshimi KUBO, Emiko FUJII
  • Patent number: 11932479
    Abstract: 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: Grant
    Filed: June 28, 2019
    Date of Patent: March 19, 2024
    Assignees: NATIONAL INSTITUTE FOR MATERIALS SCIENCE, SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Shinsuke Ishihara, Nobuo Iyi, Daisuke Misho, Noriyuki Hayashizaka
  • Publication number: 20240079198
    Abstract: 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: Application
    Filed: June 29, 2020
    Publication date: March 7, 2024
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Jie TANG, Shuai TANG, Ta-Wei CHIU, Wataru HAYAMI, Luchang QIN
  • Patent number: 11920219
    Abstract: 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: Grant
    Filed: December 13, 2019
    Date of Patent: March 5, 2024
    Assignee: National Institute for Materials Science
    Inventor: Toshimitsu Tetsui