Patents by Inventor Kazunori Sigemori

Kazunori Sigemori 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: 9853290
    Abstract: The present invention addresses the problem of providing an electrode-forming composition, which is used for the purpose of producing a secondary battery that has excellent charge and discharge cycle characteristics, and which exhibits excellent dispersibility of an active material and a conductive assistant. The problem is solved by a composition for forming a secondary battery electrode, which contains (A) an electrode active material and/or (B) a carbon material that serves as a conductive assistant, (C) an amphoteric resin-type dispersant that is obtained by neutralizing at least some carboxyl groups in a copolymer containing aromatic rings, carboxyl groups and amino groups with a basic compound, and (D) an aqueous liquid medium.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: December 26, 2017
    Assignee: Toyo Ink SC Holdings Co., Ltd.
    Inventors: Yasuyuki Moroishi, Kazunori Sigemori
  • Publication number: 20140127571
    Abstract: The present invention addresses the problem of providing an electrode-forming composition, which is used for the purpose of producing a secondary battery that has excellent charge and discharge cycle characteristics, and which exhibits excellent dispersibility of an active material and a conductive assistant. The problem is solved by a composition for forming a secondary battery electrode, which contains (A) an electrode active material and/or (B) a carbon material that serves as a conductive assistant, (C) an amphoteric resin-type dispersant that is obtained by neutralizing at least some carboxyl groups in a copolymer containing aromatic rings, carboxyl groups and amino groups with a basic compound, and (D) an aqueous liquid medium.
    Type: Application
    Filed: June 11, 2012
    Publication date: May 8, 2014
    Inventors: Yasuyuki Moroishi, Kazunori Sigemori