Patents by Inventor Hitoshi Fujimatsu

Hitoshi Fujimatsu 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).

  • Cell electrode plate, method for manufacturing it, and non-aqueous electrolyte secondary cell using them
    Patent number: 6811577
    Abstract: A method for manufacturing a battery electrode plate includes the steps of mixing a solvent (3) with a polyolefin resin (1); preparing a gel-like solution (5), a gelled solution as a whole having a high viscosity, by heating the mixture of the polyolefin and the solvent at a temperature at which a part or the whole of the polyolefin resin melts; forming an insulation layer (8) by coating the gel-like solution on the surface of the positive electrode plate or negative electrode plate (7); and heating the positive electrode plate or negative electrode plate formed with the insulation layer.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: November 2, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hitoshi Fujimatsu, Takashi Iijima, Takayuki Shirane, Hiroshi Yoshizawa, Hizuru Koshina
  • Method for manufacturing electrode plates for battery
    Patent number: 6635385
    Abstract: A mixture of a polyolefin-based resin and a solvent is heated to a temperature at which at least part of the polyolefin-based resin melts to produce a viscous, gel-like adhesive solution. A mixture of the adhesive solution, an active material, and a conductive material is kneaded to produce a paste-form mixture, and a collector is coated with this paste-form mixture to form a mixture layer. The collector with the mixture layer formed thereon is then heated and dried, after which it is press-molded to a specific thickness and cut to a specific size to produce electrode plates.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: October 21, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hitoshi Fujimatsu, Hiroshi Yoshizawa, Hizuru Koshina, Masakage Komori
  • Cell electrode plate, method for manufacturing it , and non-aqueous electrolyte secondary cell using them
    Publication number: 20020122977
    Abstract: A method for manufacturing a battery electrode plate includes the steps of mixing a solvent (3) with a polyolefin resin (1); preparing a gel-like solution (5), a gelled solution as a whole having a high viscosity, by heating the mixture of the polyolefin and the solvent at a temperature at which a part or the whole of the polyolefin resin melts; forming an insulation layer (8) by coating the gel-like solution on the surface of the positive electrode plate or negative electrode plate (7); and heating the positive electrode plate or negative electrode plate formed with the insulation layer.
    Type: Application
    Filed: February 25, 2002
    Publication date: September 5, 2002
    Inventors: Hitoshi Fujimatsu, Takashi Iijima, Takayuki Shirane, Hiroshi Yoshizawa, Hizuru Koshina
  • Method for manufacturing electrode plates for battery
    Publication number: 20010024750
    Abstract: A mixture of a polyolefin-based resin and a solvent is heated to a temperature at which at least part of the polyolefin-based resin melts to produce a viscous, gel-like adhesive solution. A mixture of the adhesive solution, an active material, and a conductive material is kneaded to produce a paste-form mixture, and a collector is coated with this paste-form mixture to form a mixture layer. The collector with the mixture layer formed thereon is then heated and dried, after which it is press-molded to a specific thickness and cut to a specific size to produce electrode plates.
    Type: Application
    Filed: March 20, 2001
    Publication date: September 27, 2001
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hitoshi Fujimatsu, Hiroshi Yoshizawa, Hizuru Koshina, Masakage Komori