Patents by Inventor Yasuhiko Nagashima

Yasuhiko Nagashima 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).

  • Patent number: 10854396
    Abstract: A packaging material for electrochemical cells, which has insulating properties sufficient for preventing a short circuit, while exhibiting excellent electrolyte solution resistance and water vapor barrier properties. A packaging material for electrochemical cells is obtained by sequentially laminating a metal layer, an adhesive resin layer and a thermally adhesive resin layer in this order, wherein: a base coating layer is provided between the metal layer and the adhesive resin layer; and the base coating layer contains at least a zirconium oxide (A) having an average particle diameter within the range of from 1 nm to 500 nm (inclusive), one or more phosphorus-containing compounds (B) selected from the group of phosphorus compounds having 4 or more phosphonic groups in each molecule, and an acid-modified polyolefin resin (C).
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: December 1, 2020
    Assignees: DAI NIPPON PRINTING CO., LTD., NIHON PARKERIZING CO., LTD.
    Inventors: Kazuhiko Yokota, Rikiya Yamashita, Yasuhiko Nagashima
  • Publication number: 20190180951
    Abstract: A packaging material for electrochemical cells, which has insulating properties sufficient for preventing a short circuit, while exhibiting excellent electrolyte solution resistance and water vapor barrier properties. A packaging material for electrochemical cells is obtained by sequentially laminating a metal layer, an adhesive resin layer and a thermally adhesive resin layer in this order, wherein: a base coating layer is provided between the metal layer and the adhesive resin layer; and the base coating layer contains at least a zirconium oxide (A) having an average particle diameter within the range of from 1 nm to 500 nm (inclusive), one or more phosphorus-containing compounds (B) selected from the group of phosphorus compounds having 4 or more phosphonic groups in each molecule, and an acid-modified polyolefin resin (C).
    Type: Application
    Filed: March 21, 2017
    Publication date: June 13, 2019
    Applicants: DAI NIPPON PRINTING CO., LTD., NIHON PARKERIZING CO., LTD.
    Inventors: Kazuhiko YOKOTA, Rikiya YAMASHITA, Yasuhiko NAGASHIMA
  • Patent number: 9879346
    Abstract: Disclosed are: a chemical conversion treatment solution for metal surfaces, which enables the formation of a chemical conversion coating film having excellent corrosion resistance and adhesion properties on metal base materials even though the solution does not contain chromium and fluorine, comprising at least one compound (A) selected from a water-soluble titanium compound and a water-soluble zirconium compound and an organic compound (B) that has multiple functional groups and can serve as a stabilizing agent, and which has a pH value of 2.0 to 6.5, wherein the content of the compound (A) is 0.1 to 10 mmol/L, and the content of the organic compound (B) is 2.5- to 10-fold larger than the content of the metal in the compound (A) by mole; and a method for treating the surface of a metal base material or a structure or body using the chemical conversion treatment solution for metal surfaces.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: January 30, 2018
    Assignee: Henkel AG & Co. KGaA
    Inventors: Takahiro Kodama, Yasuhiko Nagashima, Noriaki Kobayashi
  • Patent number: 8535456
    Abstract: A chemical conversion treatment solution for a steel material is provided. The solution is an acidic aqueous solution of pH 3 to 5 containing 50 to 500 ppm by weight of zirconium fluoride complex in terms of Zr, 5 to 50 ppm by weight of free fluorine, and 5 to 30% by weight in relation to Zr of polyethyleneimine having a weight average molecular weight of 300 to 10,000, a molar ratio of the primary amino group of at least 30%, and a molar ratio of the tertiary amino group of at least 15% in relation to the total amino group content. A method for chemical conversion treatment is also provided. This invention realizes excellent coating adhesion and corrosion resistance after the coating, as well as improved throwing power in the coating, and in particular, in the electrodeposition coating of a steel material.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: September 17, 2013
    Assignee: Henkel AG & Co. KGaA
    Inventors: Hitoshi Ishii, Yasuhiko Nagashima
  • Patent number: 8318256
    Abstract: A metallic material is provided that is superior to an iron-based metallic material in all of adhesion, heat resistance, electrical conductivity, and corrosion resistance, and a method of manufacturing the metallic material is also provided. A metallic material is provided that includes an iron-based metallic material and an oxide layer formed on the surface of the iron-based metallic material. The oxide layer includes Fe and at least one kind of metal (A) selected from a group consisting of Zr, Ti, and Hf. There is also provided a method of manufacturing the metallic material.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: November 27, 2012
    Assignee: Henkel AG & Co. KGaA
    Inventors: Hitoshi Ishii, Yasuhiko Nagashima, Ryosuke Kawagoshi
  • Publication number: 20120145282
    Abstract: Disclosed are: a chemical conversion treatment solution for metal surfaces, which enables the formation of a chemical conversion coating film having excellent corrosion resistance and adhesion properties on metal base materials even though the solution does not contain chromium and fluorine, comprising at least one compound (A) selected from a water-soluble titanium compound and a water-soluble zirconium compound and an organic compound (B) that has multiple functional groups and can serve as a stabilizing agent, and which has a pH value of 2.0 to 6.5, wherein the content of the compound (A) is 0.1 to 10 mmol/L, and the content of the organic compound (B) is 2.5- to 10-fold larger than the content of the metal in the compound (A) by mole; and a method for treating the surface of a metal base material or a structure or body using the chemical conversion treatment solution for metal surfaces.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 14, 2012
    Applicant: Henkel AG & Co. KGaA
    Inventors: Takahiro KODAMA, Yasuhiko NAGASHIMA, Noriaki KOBAYASHI
  • Publication number: 20110100830
    Abstract: A chemical conversion treatment solution for a steel material is provided. The solution is an acidic aqueous solution of pH 3 to 5 containing 50 to 500 ppm by weight of zirconium fluoride complex in terms of Zr, 5 to 50 ppm by weight of free fluorine, and 5 to 30% by weight in relation to Zr of polyethyleneimine having a weight average molecular weight of 300 to 10,000, a molar ratio of the primary amino group of at least 30%, and a molar ratio of the tertiary amino group of at least 15% in relation to the total amino group content. A method for chemical conversion treatment is also provided. This invention realizes excellent coating adhesion and corrosion resistance after the coating, as well as improved throwing power in the coating, and in particular, in the electrodeposition coating of a steel material.
    Type: Application
    Filed: January 11, 2011
    Publication date: May 5, 2011
    Applicant: Henkel AG & Co., KGaA
    Inventors: Hitoshi Ishii, Yasuhiko Nagashima
  • Publication number: 20110094630
    Abstract: The present invention provides a chemical conversion solution and the surface treating method for realizing high corrosion resistance and high coating adhesion of the metal surface, as well as high throwing power during electrodeposition, and generating no sludge. A chemical conversion solution comprising (A) at least one compound selected from water-soluble germanium compound, water-soluble tin compound, and water-soluble copper compound, (B) at least one compound selected from water-soluble titanium compound and water-soluble zirconium compound, (C) at least one water-soluble nitrate compound, (D) at least one compound selected from water-soluble aluminum compound and water-soluble magnesium compound, (E) at least one water-soluble zinc compound, and (F) at least one fluorine compound, and, the coating process for the metal structure.
    Type: Application
    Filed: December 30, 2010
    Publication date: April 28, 2011
    Applicant: Henkel AG & Co. KGaA
    Inventors: Masayuki Yoshida, Yasuhiko Nagashima, Ryosuke Kawagoshi
  • Publication number: 20110076505
    Abstract: A metallic material is provided that is superior to an iron-based metallic material in all of adhesion, heat resistance, electrical conductivity, and corrosion resistance, and a method of manufacturing the metallic material is also provided. A metallic material is provided that includes an iron-based metallic material and an oxide layer formed on the surface of the iron-based metallic material. The oxide layer includes Fe and at least one kind of metal (A) selected from a group consisting of Zr, Ti, and Hf. There is also provided a method of manufacturing the metallic material.
    Type: Application
    Filed: August 26, 2010
    Publication date: March 31, 2011
    Applicant: Henkel AG & Co., KGaA
    Inventors: Hitoshi Ishii, Yasuhiko Nagashima, Ryosuke Kawagoshi
  • Patent number: 6723178
    Abstract: A metal surface on which a phosphate conversion coating is to be formed and which has been surface conditioned by contact with a liquid surface conditioner composition that contains dispersed fine particles of solid phosphate of at least one divalent or trivalent cations type and an adhesion promoting agent. After such conditioning, a very high quality conversion coating can be formed on the surface by contact with a nickel-free liquid phosphating composition that contains at least acid, zinc cations, and phosphate anions and optionally and preferably also contains other materials.
    Type: Grant
    Filed: January 19, 2002
    Date of Patent: April 20, 2004
    Assignee: Henkel Corporation
    Inventors: Hirokatsu Bannai, Yasuhiko Nagashima, Takaomi Nakayama
  • Patent number: 6478860
    Abstract: A highly effective and storage stable conditioning treatment for metal surfaces prior to phosphating them is a suspension in water containing solid miorosize particles of at least one phosphate of a divalent or trivalent metal and an accelerant selected from the group consisting of sacoharides and their derivatives thereof, orthophosphoric acid, condensed phosphoric acids, organophosphonic acids, and polymers of vinyl acetate and/or carboxylic acid. The surface conditioning liquid composition is used simply by effecting contact between the metal and the liquid composition, and can also be used to simultaneously carry out degreasing, particularly when the conditioning liquid also contains nonionic or anionic surfactant.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: November 12, 2002
    Assignee: Henkel Corporation
    Inventors: Takaomi Nakayama, Yasuhiko Nagashima, Kensuke Shimoda, Hirokastu Bannai
  • Patent number: 6231688
    Abstract: A zinc phosphate-type conversion film having microfine-sized crystals is formed on metal surfaces using a conversion treatment bath that contains zinc ions and phosphate ions along with 50 to 1500 ppm of an organoperoxide conversion accelerator, and optionally surfactant. Surface-conditioning treatments can be omitted from this method.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: May 15, 2001
    Assignee: Henkel Corporation
    Inventors: Hitoshi Ishii, Yasuhiko Nagashima
  • Patent number: 6214132
    Abstract: A pretreatment before phosphating conversion coating is effected by contacting a metal substrate to be coated with a pretreatment composition that has a pH from 4 to 13 and contains dispersed fine particle size alkali metal or ammonium salts and divalent or trivalent metal phosphates. The conditioning achieved is as good as with conventional Jernstedt salts and the pretreatment compositions according to the invention are more storage stable.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: April 10, 2001
    Assignee: Henkel Corporation
    Inventors: Takaomi Nakayama, Yasuhiko Nagashima, Kensuke Shimoda
  • Patent number: 6180177
    Abstract: In the composition of the surface-treatment agent used for metallic material, a composition having such high corrosion-resistance as to replace the chromate coating is provided. In the composition of the surface-treatment agent provided for the metallic material, fingerprint resistance, blackening resistance and adhesiveness of paint coating are also improved.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: January 30, 2001
    Assignee: Nihon Parkerizing Co., Ltd.
    Inventors: Yasuhiko Nagashima, Hiroki Hayashi
  • Patent number: 5932292
    Abstract: A zinc phosphate conversion coating which is accelerated only with nitrogen free organic peroxides is low-polluting and able to form uniform, fine, and dense conversion coatings that exhibit an excellent paint adherence when thin and excellent lubricity/lubricant carrier quality when thick.
    Type: Grant
    Filed: June 6, 1997
    Date of Patent: August 3, 1999
    Assignee: Henkel Corporation
    Inventors: Yasuhiko Nagashima, Hitoshi Ishii
  • Patent number: 5888315
    Abstract: A zinc phosphating composition containing organoperoxide along with zinc ions and phosphate ions forms finely crystalline, dense, and thin conversion coatings on metal surfaces that are normally zinc phosphate conversion coated, even at coating temperatures below 50.degree. C. and without any "conditioning" of the surface before conversion coating by contact of the surface to be conversion coated with a conventional colloidal suspension of titanium salts.
    Type: Grant
    Filed: September 5, 1997
    Date of Patent: March 30, 1999
    Assignee: Henkel Corporation
    Inventors: Hitoshi Ishii, Yasuhiko Nagashima