Patents by Inventor Ryoko Masuyoshi

Ryoko Masuyoshi 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).

  • Battery and method for producing the same
    Patent number: 8221509
    Abstract: Sheet-shaped mixture layers are placed on both sides of a current collector to form an electrode (positive electrode) with a layered structure. The electrode with a layered structure and a counter electrode (negative electrode) thereof are wound via a separator, while a positional shift in a winding direction is caused between the current collector and the sheet-shaped mixture layers of the electrode with the layered structure, whereby a winding body is formed. The winding body is placed in a battery case (outer can) to constitute a battery. Particularly, in the electrode with a layered structure, by forming the current collector of a plain-woven wire net, a metal foil, expanded metal, a lath, or punching metal, a battery with satisfactory productivity suitable for an intermediate load can be provided at a low cost.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: July 17, 2012
    Assignee: Hitachi Maxell Energy, Ltd.
    Inventors: Ryoko Masuyoshi, Mitsutoshi Watanabe, Tetsuo Kawai, Toshiyuki Edamoto
  • BATTERY AND METHOD FOR PRODUCING THE SAME
    Publication number: 20090223037
    Abstract: Sheet-shaped mixture layers are placed on both sides of a current collector to form an electrode (positive electrode) with a layered structure. The electrode with a layered structure and a counter electrode (negative electrode) thereof are wound via a separator, while a positional shift in a winding direction is caused between the current collector and the sheet-shaped mixture layers of the electrode with the layered structure, whereby a winding body is formed. The winding body is placed in a battery case (outer can) to constitute a battery. Particularly, in the electrode with a layered structure, by forming the current collector of a plain-woven wire net, a metal foil, expanded metal, a lath, or punching metal, a battery with satisfactory productivity suitable for an intermediate load can be provided at a low cost.
    Type: Application
    Filed: May 20, 2009
    Publication date: September 10, 2009
    Inventors: Ryoko Masuyoshi, Mitsutoshi Watanabe, Tetsuo Kawai, Toshiyuki Edamoto
  • Battery and method for producing the same
    Publication number: 20050026034
    Abstract: Sheet-shaped mixture layers are placed on both sides of a current collector to form an electrode (positive electrode) with a layered structure. The electrode with a layered structure and a counter electrode (negative electrode) thereof are wound via a separator, while a positional shift in a winding direction is caused between the current collector and the sheet-shaped mixture layers of the electrode with the layered structure, whereby a winding body is formed. The winding body is placed in a battery case (outer can) to constitute a battery. Particularly, in the electrode with a layered structure, by forming the current collector of a plain-woven wire net, a metal foil, expanded metal, a lath, or punching metal, a battery with satisfactory productivity suitable for an intermediate load can be provided at a low cost.
    Type: Application
    Filed: April 30, 2004
    Publication date: February 3, 2005
    Inventors: Ryoko Masuyoshi, Mitsutoshi Watanabe, Tetsuo Kawai, Toshiyuki Edamoto