Patents by Inventor Toshifumi KOYANAGI

Toshifumi KOYANAGI 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: 20210268770
    Abstract: There is provided a roughened nickel-plated sheet having a roughened nickel layer as an outermost surface layer on at least one surface of a metal base material, wherein the brightness L* of the surface of the roughened nickel layer is 30 to 50, the glossiness of 85° of the surface of the roughened nickel layer is 1.5 to 50.
    Type: Application
    Filed: July 19, 2019
    Publication date: September 2, 2021
    Applicant: TOYO KOHAN CO., LTD.
    Inventors: Shinichirou HORIE, Etsuro TSUTSUMI, Toshifumi KOYANAGI, Koh YOSHIOKA
  • Publication number: 20210175513
    Abstract: [Problem] To provide a laminated electrolytic foil having strength sufficient to successfully suppress tearing or ripping during manufacture, the tearing or ripping being concerned accompanying with a trend toward thinner structures in battery current collectors, and improved in handling properties during the manufacture, and also a battery using the laminated electrolytic foil. [Solution] A laminated electrolytic foil includes a first metal layer formed from Cu and a second metal layer formed from Ni or an Ni alloy, in which the first metal layer and the second metal layer are laminated together. The laminated electrolytic foil has an overall layer thickness, which is the thickness of the laminated electrolytic foil as a whole, of 3 to 15 ?m and tensile strength of 700 MPa or higher.
    Type: Application
    Filed: February 18, 2019
    Publication date: June 10, 2021
    Applicant: Toyo Kohan Co., Ltd.
    Inventors: Shinichirou HORIE, Etsuro TSUTSUMI, Toshifumi KOYANAGI, Koh YOSHIOKA