Patents Assigned to Tanaka Kikinzoku Kogyo K.K.
  • 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
  • Publication number: 20210340053
    Abstract: The present invention relates to a bushing for producing glass fibers, including: a base plate; and multiple nozzles from which molten glass is discharged, in which a nozzle group formed with the alignment of the multiple nozzles is joined to the base plate. In the present invention, a coating layer made of ceramics is formed on each of the nozzles forming at least a row of the outermost layer of the nozzle group. The coating layer does not cover the entire nozzle, that is, the nozzle is covered so as to be in a state of no coating layer in the vicinity of the nozzle tip. The present invention is a bushing plate for producing glass fibers, with which the occurrence of irregular phenomena is suppressed and a uniform glass flow can be obtained stably over a long period of time.
    Type: Application
    Filed: September 6, 2019
    Publication date: November 4, 2021
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Tomoyuki TADA, Toshihiro OSAWA, Naoya NAGAO, Atsushi NAKAOKA
  • Publication number: 20210332109
    Abstract: An object of the present invention is to provide a means for rapidly diagnosing infection with VZV. The present invention relates to an antibody against VZV gE or an antibody fragment thereof, and an immunological measurement method and an immunological measurement device using the antibody or the antibody fragment thereof, etc.
    Type: Application
    Filed: April 26, 2021
    Publication date: October 28, 2021
    Applicants: TANAKA KIKINZOKU KOGYO K.K., TOMIYAMA LABORATORIES INC.
    Inventors: Hisahiko IWAMOTO, Keita SUZUKI, Tetsuo TOMIYAMA
  • Publication number: 20210324218
    Abstract: A silver ink including silver particles and a protective agent containing at least one amine compound dispersed in a dispersion medium containing, as a main solvent, a solvent having a vapor pressure at 20° C. of 40 mmHg or less and a vapor pressure at 70° C. of 0.09 mmHg or more, in an amount of 80% or more on a mass basis relative to the total dispersion medium. The amine compound has a mass average molecular weight of 115 or less, and the total amount of the amine compound is 1 part by weight or more and 14 parts by weight or less per 100 parts by weight of the silver particles. The silver ink has a moisture content of 500 ppm or more and 50,000 ppm or less and enables a practical metal film to be formed even through calcination at a low temperature of 70° C. or less.
    Type: Application
    Filed: August 15, 2019
    Publication date: October 21, 2021
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Yuusuke OHSHIMA, Yuichi MAKITA, Hiroki SATO, Noriaki NAKAMURA, Kenjiro KOSHIJI, Masato KASUGA, Hitoshi KUBO
  • Publication number: 20210328230
    Abstract: The present invention relates to a catalyst for solid polymer fuel cells in which catalyst particles containing Pt as an essential catalyst metal are supported on a carbon powder carrier. The catalyst has good initial activity and good durability. When the catalyst is analyzed by X-ray photoelectron spectroscopy after potential holding at 1.2 V (vs. RHE) for 10 minutes in a perchloric acid solution, a ratio of zero-valent Pt to total Pt is 75% or more and 95% or less. The present inventive catalyst metal is preferably one obtained by alloying Pt with one of Co, Ni and Fe, and further with one of Mn, Ti, Zr and Sn. In addition, it is preferable that a fluorine compound having a C—F bond is supported on at least the surfaces of catalyst particles in an amount of 3 to 20 mass % based on the total mass of the catalyst.
    Type: Application
    Filed: August 15, 2019
    Publication date: October 21, 2021
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventor: Minoru ISHIDA
  • Patent number: 11149045
    Abstract: A raw material for vapor deposition for producing a platinum thin film or a platinum compound thin film by a vapor deposition method. The raw material for vapor deposition includes an organoplatinum compound represented by the following formula, in which a cyclopentene-amine ligand and an alkyl ligand are coordinated to divalent platinum. The organoplatinum compound of the present invention has moderate thermal stability and can respond flexibly to severe film formation conditions, including a wider film formation area, higher throughput, and the like. (In the formula, R1, R2, and R3 are each any one of a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an amino group, an imino group, a cyano group, and an isocyano group, each having 4 or less carbon atoms, and R4 and R5 are each an alkyl group having 1 or more and 3 or less carbon atoms.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: October 19, 2021
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Ryosuke Harada, Shigeyuki Ootake, Toshiyuki Shigetomi, Kazuharu Suzuki
  • Patent number: 11149161
    Abstract: A metal ink containing metal particles including silver, a protective agent A including an amine compound, and a protective agent B including a fatty acid. The metal ink is configured such that the protective agent A includes at least one C4-12 amine compound, and the protective agent B includes at least one C22-26 fatty acid. It is preferable that the amine compound content is 0.2 mmol/g or more and 1.5 mmol/g or less on a silver particle mass basis. In addition, it is preferable that the fatty acid content is 0.01 mmol/g or more and 0.06 mmol/g or less on a silver particle mass basis.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: October 19, 2021
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Yuusuke Ohshima, Yuichi Makita, Teruhisa Iwai, Hitoshi Kubo, Shigeki Yamanaka, Masahiro Ito, Shingo Watanabe
  • Publication number: 20210317342
    Abstract: An object of the present invention is to provide an electroconductive adhesive composition which has excellent thermal conductivity and which, even when repeatedly undergoing fluctuations in temperature, is less apt to cause adherend separation. The present invention relates to an electroconductive adhesive composition which contains: an electroconductive filler (A) containing metal particles (a1) having an average particle diameter of 0.5-10 ?m and silver particles (a2) having an average particle diameter of 10-200 nm; and particles (B) of a thermoplastic resin which is solid at 25° C.
    Type: Application
    Filed: July 10, 2018
    Publication date: October 14, 2021
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Koyo KOBORI, Yoshito IMAI, Shintaroh ABE, Takeshi KONDO
  • Publication number: 20210320480
    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: Application
    Filed: September 6, 2019
    Publication date: October 14, 2021
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Yuya SAITO, Kunihiro SHIMA, Shinsuke MANO
  • Patent number: 11145478
    Abstract: A rivet-type contact of the present invention has a head part made of a contact material, and a leg part narrower than the head part in width and configured to be deformed at fixation. The leg part includes a flange part larger than the leg part in diameter, in an end part of the side of the head part, the flange part is embedded in the head part such that a lower end surface of the flange part and a lower end surface of the head part become approximately flat, and a length (l) between an endmost part of the flange part and a starting point of the leg part satisfies l<L with respect to a length (L) between an endmost part of the head part and the starting point of the leg part. Specifically, it is favorable that l satisfies 0.5 L?l?0.9 L with respect to L.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: October 12, 2021
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Masao Kuroda, Hiroshi Shirahata
  • Patent number: 11145874
    Abstract: The present invention relates to a catalyst for solid polymer fuel cells in which catalyst particles including platinum and a transition metal M are supported on a carbon powder carrier. The catalyst of the present invention is a catalyst for solid polymer fuel cells in which a molar ratio (Pt/M) of platinum to the transition metal M that form catalyst particles is 2.5 or more, and a ratio (SCOMSA/SBET) of a platinum specific surface area (SCOMSA) measured by a CO adsorption method to a catalyst specific surface area (SBET) measured by a BET method is 0.26 or more and 0.32 or less. The catalyst can be produced by preparing an alloy catalyst, then washing the alloy catalyst with a platinum compound solution, and additionally supplying platinum to the surfaces of catalyst particles.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: October 12, 2021
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Koichi Matsutani, Wataru Hashimoto, Takeshi Kaieda
  • Patent number: 11118089
    Abstract: The purpose of the present invention is to provide a thermally-conductive and electrically-conductive adhesive composition which is for use as a die bonding material and which has high heat-conducting properties and high-temperature adhesiveness. The present invention relates to a thermally-conductive and electrically-conductive adhesive composition including (A) an electrically conductive filler, (B) an epoxy resin, (C) a reactive diluent, and (D) a curing agent.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: September 14, 2021
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Shintaro Abe, Kanako Furutachi, Takeshi Kondo, Rikia Furusho
  • Patent number: 11094478
    Abstract: The present invention is a clad material for an electric contact, including a base material composed of a Cu-based, precipitation-type age-hardening material, and a contact material composed of an Ag alloy bonded to the base material. On a bonded interface between the contact material and the base material, a width of a diffusion region including Ag and Cu is 2.0 ?m or shorter. The clad material is produced by bonding each other the contact material and the base material having undergone solutionizing and age-hardening beforehand, suppressing the diffusion region from expanding after bonding. The present invention is capable of providing an electric contact, which achieves higher conductivity, without sacrificing property of the Cu-based, precipitation-type age-hardening material.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: August 17, 2021
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Takumi Niitsuma, Yoshinori Aoyama, Junichi Takeuchi, Ryuta Ido, Hideya Takahashi
  • Patent number: 11084837
    Abstract: The present invention relates to a chemical deposition raw material for manufacturing an iridium thin film or an iridium compound thin film by a chemical deposition method, including an iridium complex in which cyclopropenyl or a derivative thereof and a carbonyl ligand are coordinated to iridium. The iridium complex that is applied in the present invention enables an iridium thin film to be manufactured even when a reducing gas such as hydrogen is applied. in which R1 to R3, which are substituents of the cyclopropenyl ligand, are each independently hydrogen, or a linear or branched alkyl group with a carbon number of 1 or more and 4 or less.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: August 10, 2021
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Ryosuke Harada, Toshiyuki Shigetomi, Kazuharu Suzuki
  • Patent number: 11072851
    Abstract: Provided is a sputtering target with which it is possible to form a magnetic thin film having a high coercive force Hc. The sputtering target is a sputtering target that contains metallic Co, metallic Pt, and an oxide, wherein the sputtering target contains no metallic Cr except inevitable impurities, the oxide has B2O3, and the sputtering target comprises 10 to 50 vol % of the oxide.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: July 27, 2021
    Assignees: TANAKA KIKINZOKU KOGYO K.K., TOHOKU UNIVERSITY
    Inventors: Kim Kong Tham, Ryousuke Kushibiki, Toshiya Yamamoto, Shin Saito, Shintaro Hinata
  • Patent number: 11066728
    Abstract: The present invention relates to a Ni-based heat-resistant alloy including Ir: 5.0 mass % or more and 50.0 mass % or less, Al: 1.0 mass % or more and 8.0 mass % or less, W: 5.0 mass % or more and 25.0 mass % or less, and balance Ni, having an L12-structured ?? phase present in the matrix, and including at least one of Zr: 0.01 mass % or more and 3.0 mass % or less and Hf: 0.01 mass % or more and 3.0 mass % or less. This Ni-based heat-resistant alloy has improved toughness over a conventional Ni-based heat-resistant alloy based on a Ni—Ir—Al—W-based alloy, and is also excellent in ambient-temperature strength.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: July 20, 2021
    Assignees: TOHOKU TECHNO ARCH CO., LTD., TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Kiyohito Ishida, Toshihiro Omori, Yutaka Sato, Koichi Sakairi, Kunihiro Tanaka, Tatsuya Nakazawa
  • Patent number: 11053570
    Abstract: The present invention relates to a Ni-based heat-resistant alloy including Ir: 5.0 mass % or more and 50.0 mass % or less, Al: 1.0 mass % or more and 8.0 mass % or less, W: 5.0 mass % or more and 25.0 mass % or less, and balance Ni, having an L12-structured ?? phase present in the matrix, and including at least one of Ru: 0.8 mass % or more and 5.0 mass % or less and Re: 0.8 mass % or more and 5.0 mass % or less. This Ni-based heat-resistant alloy has improved toughness over a conventional Ni-based heat-resistant alloy based on a Ni—Ir—Al—W-based alloy, and is also excellent in ambient-temperature strength.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: July 6, 2021
    Assignees: TOHOKU TECHNO ARCH CO., LTD., TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Kiyohito Ishida, Toshihiro Omori, Yutaka Sato, Koichi Sakairi, Kunihiro Tanaka, Tatsuya Nakazawa
  • Publication number: 20210146486
    Abstract: A silver brazing material containing silver, copper, zinc, manganese, nickel, and tin as indispensable constituent elements. The silver brazing material includes 35 mass % or more and 45 mass % or less silver, 18 mass % or more and 28 mass % or less zinc, 2 mass % or more and 6 mass % or less manganese, 1.5 mass % or more and 6 mass % or less nickel, and 0.5 mass % or more and 5 mass % or less tin, with the balance being copper impurities. Within these compositional ranges, a predetermined relation is set between the manganese content and the nickel content, whereby the silver brazing material can be provided with excellent characteristics also in terms of processability or wettability. In the silver brazing material of the present invention, the silver content is reduced, and also melting point reduction and the narrowing of the temperature difference between solidus temperature and liquidus temperature are attempted.
    Type: Application
    Filed: October 24, 2018
    Publication date: May 20, 2021
    Applicants: TANAKA KIKINZOKU KOGYO K.K., TOKYO BRAZE CO., LTD.
    Inventors: Takaomi KISHIMOTO, Masahiro TAKAHASHI, Takashi TERUI, Kotaro MATSU
  • Publication number: 20210143444
    Abstract: The present invention relates to a catalyst for solid polymer fuel cells in which catalyst particles including platinum are supported on a carbon powder carrier. The invention provides a catalyst for solid polymer fuel cells in which the ratio of zerovalent platinum to platinum present on the surfaces of the catalyst particles is 80% or more and 100% or less. In the platinum catalyst, excellent durability is exhibited in an environment of operating a solid polymer fuel cell, and the amount of platinum eluted at the time of immersing the catalyst in a predetermined sulfuric acid solution is lower as compared to conventional platinum catalysts. The invention provides a catalyst for solid polymer fuel cells excellent in both initial activity and durability.
    Type: Application
    Filed: April 16, 2018
    Publication date: May 13, 2021
    Applicant: TANAKA KIKINZOKU KOGYO K.K.
    Inventor: Koichi MATSUTANI
  • Patent number: 10998556
    Abstract: The present invention relates to a catalyst for a solid polymer fuel cell, including platinum, cobalt, and zirconium supported as a catalytic metal on a carbon powder carrier, in which the supporting ratio of platinum, cobalt, and zirconium on the carbon powder carrier is Pt:Co:Zr=3:0.5 to 1.5:0.1 to 3.0 by molar ratio. In the present invention, it is preferable that the peak position of Pt3Co seen in the X-ray diffraction pattern of catalyst particles is 2?=41.10° or more and 42.00° or less, and moderate alloying has occurred in the catalytic metal.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: May 4, 2021
    Assignee: TANAKA KIKINZOKU KOGYO K.K.
    Inventors: Wataru Hashimoto, Tatsunori Namai, Minoru Ishida, Hitoshi Nakajima, Kazuki Okaya, Takeshi Kaieda, Koichi Matsutani