Patents by Inventor Hideo Nakako

Hideo Nakako has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200130109
    Abstract: Provided is A metal paste for joints, containing: metal particles; and monovalent carboxylic acid having 1 to 9 carbon atoms, in which the metal particles include sub-micro copper particles having a volume average particle diameter of 0.12 ?m to 0.8 ?m, and a content of the monovalent carboxylic acid having 1 to 9 carbon atoms is 0.015 part by mass to 0.2 part by mass with respect to 100 parts by mass of the metal particles.
    Type: Application
    Filed: January 18, 2018
    Publication date: April 30, 2020
    Inventors: Yuki KAWANA, Hideo NAKAKO, Motohiro NEGISHI, Dai ISHIKAWA, Chie SUGAMA, Yoshinori EJIRI
  • Publication number: 20200108471
    Abstract: Provided is copper paste for joining including metal particles, and a dispersion medium. The metal particles include sub-micro copper particles having a volume-average particle size of 0.12 ?m to 0.8 ?m, and flake-shaped micro copper particles having a maximum particle size of 1 ?m to 20 ?m, and an aspect ratio of 4 or greater, and the amount of the micro copper particles contained, which are included in the metal particles and have a maximum particle size of 1 ?m to 20 ?m and an aspect ratio of less than 2, is 50% by mass or less on the basis of a total amount of the flake-shaped micro copper particles.
    Type: Application
    Filed: September 7, 2016
    Publication date: April 9, 2020
    Inventors: Dai ISHIKAWA, Yuki KAWANA, Chie SUGAMA, Hideo NAKAKO, Yoshinori EJIRI, Kazuhiko KURAFUCHI
  • Publication number: 20200075528
    Abstract: Provided is a metal paste for joints, containing: metal particles; and linear or branched monovalent aliphatic alcohol having 1 to 20 carbon atoms, in which the metal particles include sub-micro copper particles having a volume average particle diameter of 0.12 ?m to 0.8 ?M.
    Type: Application
    Filed: January 18, 2018
    Publication date: March 5, 2020
    Inventors: Yuki KAWANA, Hideo NAKAKO, Motohiro NEGISHI, Dai ISHIKAWA, Chie SUGAMA, Yoshinori EJIRI
  • Patent number: 10566304
    Abstract: Provided is a joined body including: a first member; a second member; and a sintered metal layer that joins the first member and the second member. The sintered metal layer includes a structure that is derived from flake-shaped copper particles which are oriented in approximately parallel to an interface between the first member or the second member, and the sintered metal layer, and the amount of copper contained in the sintered metal layer is 65% by volume or greater on the basis of a volume of the sintered metal layer.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: February 18, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Hideo Nakako, Kazuhiko Kurafuchi, Yoshinori Ejiri, Dai Ishikawa, Chie Sugama, Yuki Kawana
  • Publication number: 20190355690
    Abstract: A copper paste for pressureless bonding is a copper paste for pressureless bonding, containing: metal particles; and a dispersion medium, in which the metal particles include sub-micro copper particles having a volume average particle diameter of greater than or equal to 0.01 ?m and less than or equal to 0.8 ?m, and micro copper particles having a volume average particle diameter of greater than or equal to 2.0 ?m and less than or equal to 50 ?m, and the dispersion medium contains a solvent having a boiling point of higher than or equal to 300° C., and a content of the solvent having a boiling point of higher than or equal to 300° C. is greater than or equal to 2 mass % on the basis of a total mass of the copper paste for pressureless bonding.
    Type: Application
    Filed: January 11, 2017
    Publication date: November 21, 2019
    Inventors: Hideo NAKAKO, Kazuhiko KURAFUCHI, Yoshinori EJIRI, Dai ISHIKAWA, Chie SUGAMA, Yuki KAWANA
  • Patent number: 10363608
    Abstract: Provided is copper paste for joining including metal particles, and a dispersion medium. The metal particles include sub-micro copper particles having a volume-average particle size of 0.12 ?m to 0.8 ?m, and micro copper particles having a volume-average particle size of 2 ?m to 50 ?m, a sum of the amount of the sub-micro copper particles contained and the amount of the micro copper particles contained is 80% by mass or greater on the basis of a total mass of the metal particles, and the amount of the sub-micro copper particles contained is 30% by mass to 90% by mass on the basis of a sum of a mass of the sub-micro copper particles and a mass of the micro copper particles.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: July 30, 2019
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Yuki Kawana, Kazuhiko Kurafuchi, Yoshinori Ejiri, Hideo Nakako, Chie Sugama, Dai Ishikawa
  • Patent number: 10201879
    Abstract: A silver paste composition comprising silver particles having a particle diameter of 0.1 ?m to 20 ?m, and a solvent, wherein the above-described solvent comprises a solvent having a boiling point of 300° C. or more.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: February 12, 2019
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Dai Ishikawa, Hiroshi Matsumoto, Michiko Natori, Hideo Nakako, Toshiaki Tanaka
  • Patent number: 10174226
    Abstract: An adhesive composition comprising silver particles containing silver atoms and zinc particles containing metallic zinc, wherein the silver atom content is 90 mass % or greater and the zinc atom content is from 0.01 mass % to 0.6 mass %, with respect to the total transition metal atoms in the solid portion of the adhesive composition.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: January 8, 2019
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Hideo Nakako, Toshiaki Tanaka, Michiko Natori, Dai Ishikawa, Hiroshi Matsumoto
  • Publication number: 20180342478
    Abstract: Provided is a joined body including: a first member; a second member; and a sintered metal layer that joins the first member and the second member. The sintered metal layer includes a structure that is derived from flake-shaped copper particles which are oriented in approximately parallel to an interface between the first member or the second member, and the sintered metal layer, and the amount of copper contained in the sintered metal layer is 65% by volume or greater on the basis of a volume of the sintered metal layer.
    Type: Application
    Filed: September 7, 2016
    Publication date: November 29, 2018
    Applicant: Hitachi Chemical Company, Ltd.
    Inventors: Hideo NAKAKO, Kazuhiko KURAFUCHI, Yoshinori EJIRI, Dai ISHIKAWA, Chie SUGAMA, Yuki KAWANA
  • Publication number: 20180250751
    Abstract: Provided is copper paste for joining including metal particles, and a dispersion medium. The metal particles include sub-micro copper particles having a volume-average particle size of 0.12 ?m to 0.8 ?m, and micro copper particles having a volume-average particle size of 2 ?m to 50 ?m, a sum of the amount of the sub-micro copper particles contained and the amount of the micro copper particles contained is 80% by mass or greater on the basis of a total mass of the metal particles, and the amount of the sub-micro copper particles contained is 30% by mass to 90% by mass on the basis of a sum of a mass of the sub-micro copper particles and a mass of the micro copper particles.
    Type: Application
    Filed: September 7, 2016
    Publication date: September 6, 2018
    Inventors: Yuki KAWANA, Kazuhiko KURAFUCHI, Yoshinori EJIRI, Hideo NAKAKO, Chie SUGAMA, Dai ISHIKAWA
  • Patent number: 9676969
    Abstract: The invention provides a composition set comprising: a conductor layer-forming composition comprising a dispersing medium and inorganic particles comprising a metallic oxide; and a conductive adhesive composition comprising a binder and conductive particles having a number average particle size of from 1 nm to 3000 nm.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: June 13, 2017
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Hideo Nakako, Kazunori Yamamoto, Yasushi Kumashiro, Shunya Yokosawa, Takaaki Noudou, Maki Inada, Kyoko Kuroda
  • Patent number: 9550940
    Abstract: An etching material including at least one boron compound selected from a Lewis acid that includes, in its structure, boron and a halogen that is bonded to the boron, a salt of the Lewis acid and a compound that generates the Lewis acid.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: January 24, 2017
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Hideo Nakako, Yasushi Kumashiro, Takaaki Noudou, Maki Inada, Kyoko Kuroda
  • Patent number: 9457406
    Abstract: Disclosed are: a copper metal film which has good adhesion to a substrate, low volume resistivity, and good deep-part metal properties; and a method for producing a copper metal film, wherein the copper metal film can be produced by reducing a substrate to a deep part thereof without damaging the substrate. Specifically disclosed is a copper metal film obtained by treating a copper-based particle deposition layer containing both copper oxides and a metallic transition metal or alloy, or a transition metal complex containing a metal element, with gaseous formic acid and/or formaldehyde heated to 120° C. or higher. The copper oxide is preferably copper (I) oxide and/or copper (II) oxide. The transition metal, alloy or metal complex are preferably a metal selected from the group consisting of Cu, Pd, Pt, Ni, Ag, Au and Rh, an alloy containing the metal, or a complex containing the metal element, respectively.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: October 4, 2016
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Hideo Nakako, Kazunori Yamamoto, Yasushi Kumashiro, Shunya Yokosawa, Katsuyuki Masuda, Yoshinori Ejiri, Maki Inada, Kyoko Kuroda
  • Publication number: 20150299568
    Abstract: An etching material including at least one boron compound selected from a Lewis acid that includes, in its structure, boron and a halogen that is bonded to the boron, a salt of the Lewis acid and a compound that generates the Lewis acid.
    Type: Application
    Filed: October 11, 2013
    Publication date: October 22, 2015
    Inventors: Hideo Nakako, Yasushi Kumashiro, Takaaki Noudou, Maki Inada, Kyoko Kuroda
  • Publication number: 20150217411
    Abstract: A silver paste composition comprising silver particles having a particle diameter of 0.1 ?m to 20 ?m, and a solvent, wherein the above-described solvent comprises a solvent having a boiling point of 300° C. or more.
    Type: Application
    Filed: August 5, 2013
    Publication date: August 6, 2015
    Inventors: Dai Ishikawa, Hiroshi Matsumoto, Michiko Natori, Hideo Nakako, Toshiaki Tanaka
  • Patent number: 9051246
    Abstract: A compound represented by a formula 1 shown below. In the formula 1, each of R1 and R2 independently represents a group selected from the group consisting of a hydrogen atom and substituents composed of C, H and/or X (wherein X represents a hetero atom), and each of Z1 and Z2 independently represents a group selected from the group consisting of aromatic substituents composed of C and H, aromatic substituents composed of C, H and X (wherein X represents a hetero atom), groups containing an aromatic ring and a double-bonded and/or triple-bonded conjugated structure composed of C and H, and groups containing an aromatic ring and a double-bonded and/or triple-bonded conjugated structure composed of C, H and/or X (wherein X represents a hetero atom).
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: June 9, 2015
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Shigeaki Funyuu, Kenichi Ishitsuka, Hideo Nakako, Sentaro Okamoto
  • Publication number: 20150137347
    Abstract: An adhesive composition comprising silver particles containing silver atoms and zinc particles containing metallic zinc, wherein the silver atom content is 90 mass % or greater and the zinc atom content is from 0.01 mass % to 0.6 mass %, with respect to the total transition metal atoms in the solid portion of the adhesive composition.
    Type: Application
    Filed: June 14, 2013
    Publication date: May 21, 2015
    Inventors: Hideo Nakako, Toshiaki Tanaka, Michiko Natori, Dai Ishikawa, Hiroshi Matsumoto
  • Publication number: 20140242362
    Abstract: The invention provides a composition set comprising: a conductor layer-forming composition comprising a dispersing medium and inorganic particles comprising a metallic oxide; and a conductive adhesive composition comprising a binder and conductive particles having a number average particle size of from 1 nm to 3000 nm.
    Type: Application
    Filed: July 30, 2012
    Publication date: August 28, 2014
    Inventors: Hideo Nakako, Kazunori Yamamoto, Yasushi Kumashiro, Shunya Yokosawa, Takaaki Noudou, Maki Inada, Kyoko Kuroda
  • Patent number: 8801971
    Abstract: Provided are a copper conductor film and manufacturing method thereof, and patterned copper conductor wiring, which have superior conductivity and wiring pattern formation, and with which there is no decrease in insulation between circuits, even at narrow wiring widths and narrow inter-wiring spacing.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: August 12, 2014
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Hideo Nakako, Kazunori Yamamoto, Yasushi Kumashiro, Youichi Machii, Shunya Yokozawa, Yoshinori Ejiri, Katsuyuki Masuda
  • Publication number: 20130295276
    Abstract: There is provided a method wherein a surface treating agent, which is essential for making copper particles antioxidative and dispersing the copper particles in the prior art, is hardly used, but copper particles, which cause little electromigration and are small in the price rate of material itself, are used to form a low-resistance copper wiring pattern while the generation of cracks therein is restrained. The method includes the step of using a dispersion slurry wherein copper based particles having a copper oxide surface are dispersed to form any pattern over a substrate, and the step of reducing the copper oxide surface of the copper based particles in the pattern with atomic form hydrogen to return the oxide to copper, and sintering particles of the copper metal generated by the reduction and bonding the particles to each other.
    Type: Application
    Filed: July 3, 2013
    Publication date: November 7, 2013
    Inventors: Hideo NAKAKO, Kazunori YAMAMOTO, Youichi MACHII, Yasushi KUMASHIRO, Shunya YOKOZAWA, Yoshinori EJIRI, Katsuyuki MASUDA