Patents Assigned to Tanaka Kikinzoku Kogyo K.K.
  • Patent number: 11329405
    Abstract: Provided is a tape-shaped contact member including a tape-shaped contact material. At least one wire-shaped brazing material is bonded to the tape-shaped contact material, at least one projection including the brazing material and protruding from a surface of the contact material is formed in a cross-sectional shape, a diffusion region containing a metal component forming the brazing material is formed along an interface with the brazing material inside the contact material, and the diffusion region has a thickness of 2 ?m or more and 10 ?m or less. A chip-shaped contact component can be obtained by cutting the tape-shaped contact member to an arbitrary length. The present contact component is useful as a constituent member for a switching electrical contact, and capable of adapting to height reduction of the electrical contact. The present invention can also contribute to reduction of occurrence of poor bonding.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: May 10, 2022
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Hiroshi Matsuo, Ryoe Wada
  • Publication number: 20220128553
    Abstract: The invention relates to an immunochromatography analysis device which enables simple and rapid diagnosis of dengue virus infection, and an object thereof is to provide an immunochromatography analysis device which can reduce a cross-reaction with a virus belonging to Flaviviridae other than dengue virus and which can specifically detect dengue virus. The invention relates to an immunochromatography analysis device for detecting dengue virus including a sample application part, a labeling substance-holding part, a chromatography medium part having a detection part and an absorption part, wherein the labeling substance-holding part contains a first antibody which recognizes the amino acid sequence of SEQ ID NO: 2 that is present in the whole amino acid sequence of dengue virus NS1 of SEQ ID NO: 1, and the detection part contains a second antibody which recognizes the three-dimensional structure of dengue virus NS1.
    Type: Application
    Filed: January 31, 2020
    Publication date: April 28, 2022
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Keita SUZUKI, Hisahiko IWAMOTO
  • Publication number: 20220122635
    Abstract: Provided is a perpendicular magnetic recording medium that exhibits improved thermal stability and achieves reduction in switching magnetic field by providing a cap layer having characteristics (characteristics contributing to reducing switching magnetic field of the perpendicular magnetic recording medium as well as to improving thermal stability thereof) superior to existing cap layers. A perpendicular magnetic recording layer (24) has a granular structure which comprises Co- Pt-alloy magnetic crystal grains (24A) and a non-magnetic grain boundary oxide (24B). A cap layer (26) has a granular structure which comprises Co-Pt-alloy magnetic crystal grains (26A) and a magnetic grain boundary oxide (26B). The Co- Pt -alloy magnetic crystal grains (26A) in the cap layer (26) contain 65-90 at % of Co and 10-35 at % of Pt. The magnetic grain boundary oxide (26B) is included in a volume fraction of 5-40 vol % with respect to the total volume of the cap layer (26).
    Type: Application
    Filed: December 23, 2019
    Publication date: April 21, 2022
    Applicants: TANAKA KIKINZOKU KOGYO K.K., TOHOKU UNIVERSITY
    Inventors: Kim Kong THAM, Tomonari KAMADA, Ryousuke KUSHIBIKI, Shin SAITO
  • Patent number: 11309141
    Abstract: A DC high-voltage relay including at least one contact pair including a movable contact and a fixed contact, having a contact force and/or opening force of 100 gf or more, the DC high-voltage relay of 48 V or more. The movable contact and/or the fixed contact includes Ag oxide-based contact material. Metal components in the contact material includes at least one metal M essentially containing Sn, and a balance including Ag and inevitable impurity metals. The content of the metal M is 0.2% by mass or more and 8% by mass or less based on the total mass of all metal components in the contact material. The contact material has a material structure in which one or more oxides of the metal M are dispersed in a matrix including Ag or a Ag alloy. As metal M, In, Bi, Ni and Te can be added.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: April 19, 2022
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Sachihiro Nishide, Tetsuya Nakamura, Hiroyuki Itakura, Nobuhito Yanagihara
  • Patent number: 11303099
    Abstract: The present invention discloses a spark plug electrode material including a substrate formed of Ir or Ir alloy, and an antioxidant film covering a surface of the substrate. Here, an underlying layer formed of Au is formed on a surface of the substrate formed of Ir or Ir alloy, and on the underlying layer, a Ni film having a thickness of 3.0 ?m or more and 8.0 ?m or less is formed as an antioxidant film. The Ni film turns into an antioxidant film formed of Ni oxide in an oxidizing atmosphere at 500° C. or higher. Owing to the antioxidant film, the spark plug electrode material of the present invention has an excellent high-temperature oxidation property.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: April 12, 2022
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Yuya Saito, Kunihiro Shima, Shinsuke Mano
  • Publication number: 20220099702
    Abstract: An object is to enhance the durability of substrates of a probe substrate and/or the probe substrate and a member to be joined.
    Type: Application
    Filed: October 18, 2019
    Publication date: March 31, 2022
    Applicants: KABUSHIKI KAISHA NIHON MICRONICS, TANAKA KIKINZOKU KOGYO K.K.
    Inventors: TOSHINORI OMORI, KAZUYA GOTO, YASUAKI OSANAI, TAKASHI AKINIWA, TAKEKI SUGISAWA, TAKESHI KONDO, SHINTARO ABE, MAKI WATANABE
  • Publication number: 20220093879
    Abstract: The present invention relates to an organoiridium complex for an organic electroluminescent element in which a C-N ligand and an ancillary ligand are coordinated with iridium. This organoiridium complex contains a 2-(dibenzo[b,d]thiophen-4-yl)quinolinate ligand having at least one methyl group introduced thereinto coordinated as the C-N ligand, and is represented by the following Formula. The present inventive organoiridiurn complex is suitable as a red emitting phosphorescent material for an OLED, has high photoluminescence quantum yield ?PL, and is excellent in color purity. (In the aforementioned Formula, R1, R2, R3, R4, R5, R6, and R7 are each a methyl group or a hydrogen atom, provided that at least one of R1, R2, R3, R4 is a methyl group; and X-Y is the ancillary ligand.
    Type: Application
    Filed: January 28, 2020
    Publication date: March 24, 2022
    Applicants: TANAKA KIKINZOKU KOGYO K.K., UNIVERSITY PUBLIC CORPORATION OSAKA
    Inventors: Yasushi MASAHIRO, Junichi TANIUCHI, Shigeyuki YAGI
  • Publication number: 20220081787
    Abstract: A porous body includes: a porous electrically conductive base material having communication voids and a skeleton forming the voids; and a metal coating film provided on at least a portion of a surface of the skeleton, wherein a porosity of the porous electrically conductive base material is 10% or more, 70% by mass or more of the metal coating film exists in a region lying within 30% from one surface of the porous body as measured in the thickness direction, and a thickness of an oxide film between the skeleton and the metal coating film is 2 nm or less in at least a part of the oxide film. An amount of a metal for the metal coating film has been reduced and growth of an oxide film between the base material and the metal coating film has been suppressed.
    Type: Application
    Filed: February 28, 2020
    Publication date: March 17, 2022
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Masaru SAITO, Tasuku ARIMOTO, Tetsuya UEDA
  • Patent number: 11276866
    Abstract: The present invention relates to a catalyst for a solid polymer fuel cell that includes catalyst particles supported on a carbon powder carrier, the catalyst particles containing platinum, cobalt, and manganese. In the catalyst particles of the catalyst, the component ratio of platinum, cobalt, and manganese is Pt:Co:Mn=1:0.25 to 0.28:0.07 to 0.10 in a molar ratio, the average particle size is 3.4 to 5.0 nm, and further, in the particle size distribution of the catalyst particles, the proportion of catalyst particles having a particle size of 3.0 nm or less in the entire catalyst particles is 37% or less on a particle number basis. Then, a fluorine compound having a C—F bond is supported at least on the surface of the catalyst particles. The present invention is, with respect to the above ternary alloy catalyst, an invention particularly effective in improving the durability.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: March 15, 2022
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventor: Minoru Ishida
  • Patent number: 11268168
    Abstract: The present invention provides an artifactless superelastic alloy including a Au—Cu—Al alloy, the superelastic alloy containing Cu in an amount of 20 atom % or more and 40 atom % or less, Al in an amount of 15 atom % or more and 25 atom % or less, and Au as a balance, the superelastic alloy having a bulk magnetic susceptibility of ?24 ppm or more and 6 ppm or less. The Ni-free superelastic alloy of the present invention is capable of exhibiting superelasticity in a normal temperature range, and hardly generated artifacts in a magnetic field environment. The alloy can be produced by setting a casting time in a melting and casting step to a fixed time, and hot-pressing an alloy after casting to make material structures homogeneous.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: March 8, 2022
    Assignees: TOKYO INSTITUTE OF TECHNOLOGY, TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Hideki Hosoda, Akira Umise, Kenji Goto
  • Publication number: 20220049370
    Abstract: The invention relates to a metal sheet which has a plurality of parts to be plated, a frame part and connector parts connecting the parts to be plated and the frame part and in which the plurality of the parts to be plated, the frame part and the connector parts are made of a metal.
    Type: Application
    Filed: December 26, 2019
    Publication date: February 17, 2022
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Tasuku ARIMOTO, Junichi IMAI, Masaru SAITO
  • Publication number: 20220042140
    Abstract: The present invention relates to a medical Au—Pt—Pd alloy including Au, Pt, Pd, and inevitable impurities. The Au—Pt—Pd alloy has an alloy composition inside a polygon (A1-A2-A3-A4) surrounded by straight lines connected at point A1 (Au: 53 atom %, Pt: 4 atom %, and Pd: 43 atom %), point A2 (Au: 70 atom %, Pt: 4 atom %, and Pd: 26 atom %), point A3 (Au: 69.9 atom %, Pt: 30 atom %, and Pd: 0.1 atom %), and point A4 (Au: 49.9 atom %, Pt: 50 atom %, and Pd: 0.1 atom %) in a Au—Pt—Pd ternary state diagram. In a metal structure of the alloy, at least one of a Au-rich phase and a Pt-rich phase is distributed, and the total of the area ratio of the Au-rich phase and the area ratio of the Pt-rich phase is 1.5% or more and 25.4% or less.
    Type: Application
    Filed: September 24, 2020
    Publication date: February 10, 2022
    Applicants: TANAKA KIKINZOKU KOGYO K.K., TOKUSHIMA UNIVERSITY
    Inventors: Michimasa OKUBO, Kenji GOTO, Kunihiro TANAKA, Kojiro SHIRAISHI, Kunihiro SHIMA, Yuya KATO, Kenichi HAMADA, Eiichi HONDA, Emi TAKEGAWA
  • Patent number: 11239473
    Abstract: The present invention relates to a catalyst for solid polymer fuel cells in which catalyst particles including platinum or platinum alloy are supported on a carbon powder carrier. The catalyst of the present invention is a catalyst for solid polymer fuel cells in which the bond energy (Ec) at a gravity center position is 2.90 eV or more and 3.85 eV or less as calculated from a spectrum area of a Pt5d orbit-derived spectrum which is obtained by measuring a valence band spectrum in a range of 0 eV or more and 20 eV or less in the result of subjecting the catalyst particles to X-ray photoelectron spectroscopic analysis.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: February 1, 2022
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Takeshi Kaieda, Koichi Matsutani
  • Publication number: 20220028573
    Abstract: An electrically-conductive material containing Ag in an amount of 10 mass % or more and 70 mass % or less, Pd in an amount of 30 mass % or more and 90 mass % or less, Ni in an amount of more than 5 mass % and 45 mass % or less, and inevitable impurities. A ratio of a Ni content (mass %) to a Ag content (mass %) (Ni (mass %)/Ag (mass %)) is 0.1 or more and 5.0 or less, metal structures include a AgPd alloy phase and a PdNi alloy phase, and a volume ratio of the PdNi alloy phase is 18 vol % or more and 80 vol % or less. Ni is added in a high concentration to a AgPd alloy, and the amount of PdNi alloy phases generated as separate phases is controlled to strengthen the entire alloy.
    Type: Application
    Filed: November 25, 2019
    Publication date: January 27, 2022
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventor: Terumasa TSURUTA
  • Publication number: 20220017996
    Abstract: The present invention relates to an alloy for medical use, including Pt, Co, Cr, Ni, and Mo. The alloy includes 10 atom % or more and 30 atom % or less of Pt, 20 atom % or more and 31 atom % or less of Cr, 5 atom % or more and 24 atom % or less of Ni, 4 atom % or more and 8 atom % or less of Mo, the balance Co, and unavoidable impurities, and a ratio of the Ni content (CNi) to the Pt content (CPt), CNi/CPt is 1.5 or less. The present invention can be applied to various kinds of devices for medical use, such as catheter, embolic coils, and guide wires, in addition to stents such as flow-diverter stents.
    Type: Application
    Filed: November 18, 2019
    Publication date: January 20, 2022
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Shubham YADAV, Yuya KATO, Kenji GOTO, Kunihiro SHIMA
  • Publication number: 20220018018
    Abstract: The present invention relates to a raw material for chemical deposition for producing a ruthenium thin film or a ruthenium compound thin film by a chemical deposition method, containing a ruthenium complex represented by the following Chemical Formula 1. In Chemical Formula 1, ligands L1 and L2 coordinated to ruthenium are represented by the following Chemical Formula 2. The raw material for chemical deposition according to the present invention can be formed into a high quality thin film even if a reaction gas containing an oxygen atom is not used. wherein R1 to R12, which are substituents of the ligands L1 and L2, are each independently any one of a hydrogen atom, and a linear or branched alkyl group having a carbon number of 1 or more and 4 or less.
    Type: Application
    Filed: December 2, 2019
    Publication date: January 20, 2022
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Ryosuke HARADA, Teruhisa IWAI, Toshiyuki SHIGETOMI, Shigeyuki OOTAKE, Seung-Joon LEE
  • Publication number: 20220015232
    Abstract: An electroconductive substrate including a base material and a metal wiring made of at least either of silver and copper, and the electroconductive substrate has an antireflection region formed on part or all of the metal wiring surface. This antireflection region is composed of roughened particles made of at least either of silver and copper and blackened particles finer than the roughened particles and embedded between the roughened particles. The blackened particles are made of silver or a silver compound, copper or a copper compound, or carbon or an organic substance having a carbon content of 25 wt % or more. The antireflection region has a surface with a center line average roughness of 15 nm or more and 70 nm or less. The electroconductive substrate is formed from metal wiring from a metal ink that forms roughened particles, followed by application of a blackening ink containing blackened particles.
    Type: Application
    Filed: November 13, 2019
    Publication date: January 13, 2022
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Kenjiro KOSHIJI, Yuichi MAKITA, Noriaki NAKAMURA, Masato KASUGA, Yuusuke OHSHIMA, Hiroki SATO, Hitoshi KUBO
  • Publication number: 20210391105
    Abstract: A CoPt-oxide-based in-plane magnetized film having a magnetic coercive force of 2.00 kOe or more and remanent magnetization per unit area Mrt of 2.00 memu/cm2 or more. The in-plane magnetized film for use as a hard bias layer of a magnetoresistive element contains metal Co, metal Pt, and an oxide. The in-plane magnetized film contains the metal Co in an amount of 55 at % or more and less than 95 at % and the metal Pt in an amount of more than 5 at % and 45 at % or less relative to a total of metal components of the in-plane magnetized film, and contains the oxide in an amount of 10 vol % or more and 42 vol % or less relative to a whole amount of the in-plane magnetized film. The in-plane magnetized film has a thickness of 20 nm or more and 80 nm or less.
    Type: Application
    Filed: October 30, 2019
    Publication date: December 16, 2021
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Kim Kong THAM, Ryousuke KUSHIBIKI, Masahiro AONO, Yasunobu WATANABE
  • Patent number: 11185902
    Abstract: A platinum-based material element wire is coated with gold or gold alloy, and drawing-processed with a carbon-containing die. The thin wire manufactured in this manner is covered with gold or gold alloy, and the coverage of gold or gold alloy is 40% or more on an area basis. The thin wire formed of a platinum-based material is manufactured in a state of suppressing breakage in a drawing processing step, and has favorable performance in electric properties and the like. In addition, this manufacturing process is capable of efficiently manufacturing a platinum-based material thin wire while suppressing breakage when the thin wire is manufactured by drawing processing.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: November 30, 2021
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Yuki Horinouchi, Mitsuo Takada
  • Patent number: 11168382
    Abstract: A sliding contact material that is used for a constituent material, particularly a brush, of a motor. The sliding contact material includes: Pd in an amount of 20.0% by mass or more and 50.0% by mass or less; Ni and/or Co in an amount of 0.6% by mass or more and 3.0% by mass or less in terms of a total concentration; and Ag and inevitable impurities as a balance. Preferably, the sliding contact material further contains an additive element M including at least one of Sn and In, and the total concentration of the additive element M is 0.1% by mass or more and 3.0% by mass or less. When containing the additive element M, the sliding contact material has material structures in which composite dispersed particles containing an intermetallic compound of Pd and the additive element M are dispersed in an Ag alloy matrix, and the ratio (KPd/KM) of the content (% by mass) of Pd and the content (% by mass) of the additive element M in the composite dispersed particles is within a range of 2.4 or more and 3.6 or less.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: November 9, 2021
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Takao Asada, Takumi Niitsuma, Terumasa Tsuruta, Masahiro Takahashi, Yuusuke Saito