Patents by Inventor Zenzou Hashimoto

Zenzou Hashimoto 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).

  • Conductor-mixed active electrode material, electrode structure, rechargeable battery, and manufacturing method of conductor-mixed active electrode material
    Patent number: 8709648
    Abstract: An object of the present invention is to enhance the electrical conductivity between active electrode materials, enhance the electrical conductivity between an active electrode material and an electrical conduction assistant agent, and enhance the conductivity between the active electrode material and a current collecting material. This invention is related in principle to a conductor-mixed active electrode material which is processed by stirring and mixing an active electrode material and a conductive material together with hard balls, an electrode structure utilizing this conductor-mixed active electrode material, a rechargeable battery, and a method of fabricating the conductor-mixed active electrode material.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: April 29, 2014
    Assignee: Ener1, Inc.
    Inventors: Tatsuo Shimizu, Zenzou Hashimoto
  • CONDUCTOR-MIXED ACTIVE ELECTRODE MATERIAL, ELECTRODE STRUCTURE, RECHARGEABLE BATTERY, AND MANUFACTURING METHOD OF CONDUCTOR-MIXED ACTIVE ELECTRODE MATERIAL
    Publication number: 20080261111
    Abstract: An object of the present invention is to enhance the electrical conductivity between active electrode materials, enhance the electrical conductivity between an active electrode material and an electrical conduction assistant agent, and enhance the conductivity between the active electrode material and a current collecting material. This invention is related in principle to a conductor-mixed active electrode material which is processed by stirring and mixing an active electrode material and a conductive material together with hard balls, an electrode structure utilizing this conductor-mixed active electrode material, a rechargeable battery, and a method of fabricating the conductor-mixed active electrode material.
    Type: Application
    Filed: April 18, 2008
    Publication date: October 23, 2008
    Applicant: Itochu Corporation
    Inventors: Tatsuo Shimizu, Zenzou Hashimoto
  • Current collecting structure and electrode structure
    Publication number: 20060175704
    Abstract: An object of this invention is to achieve the current collecting structure and the electrode structure with good electrical conductivity and ionic conductivity which are comprised of the current collecting substrate and the current collecting structure or the electrode structure that are covered with the carbon material or the electrode active material formed on the current collecting substrate without the use of binders.
    Type: Application
    Filed: July 15, 2004
    Publication date: August 10, 2006
    Inventors: Tatsuo Shimizu, Zenzou Hashimoto
  • Lithium rechargeable battery
    Publication number: 20050221186
    Abstract: An object of the present invention is to enhance the electrical conductivity between active electrode materials, enhance the electrical conductivity between an active electrode material and an electrical conduction assistant agent, and enhance the conductivity between the active electrode material and a current collecting material. This invention is related in principle to a conductor-mixed active electrode material which is processed by stirring and mixing an active electrode material and a conductive material together with hard balls, an electrode structure utilizing this conductor-mixed active electrode material, a rechargeable battery, and a method of fabricating the conductor-mixed active electrode material.
    Type: Application
    Filed: June 3, 2003
    Publication date: October 6, 2005
    Applicant: Itochu Corporation
    Inventors: Tatsuo Shimizu, Zenzou Hashimoto