Patents by Inventor Koh Ishiguchi

Koh Ishiguchi 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).

  • Lithium ion secondary battery electrode, method of manufacturing the same, and lithium ion secondary battery
    Patent number: 9356280
    Abstract: A lithium ion secondary battery electrode according to the present invention includes (A) a non-fluorinated polymer; (B) an active material; (C) a thickener; and (D) a conductive auxiliary agent. An elution ratio of (A) the non-fluorinated polymer in an electrolytic solution solvent at 60° C. is equal to or less than 1.0 mass %, and a swelling ratio of (A) the non-fluorinated polymer in the electrolytic solution solvent at 60° C. is equal to or more than 10 mass % and equal to or less than 50 mass %.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: May 31, 2016
    Assignee: NEC ENERGY DEVICES, LTD.
    Inventors: Yuka Chikugo, Hitoshi Ishikawa, Yasutaka Kono, Ippei Waki, Koh Ishiguchi
  • LITHIUM ION SECONDARY BATTERY ELECTRODE, METHOD OF MANUFACTURING THE SAME, AND LITHIUM ION SECONDARY BATTERY
    Publication number: 20140248534
    Abstract: A lithium ion secondary battery electrode according to the present invention includes (A) a non-fluorinated polymer; (B) an active material; (C) a thickener; and (D) a conductive auxiliary agent. An elution ratio of (A) the non-fluorinated polymer in an electrolytic solution solvent at 60° C. is equal to or less than 1.0 mass %, and a swelling ratio of (A) the non-fluorinated polymer in the electrolytic solution solvent at 60° C. is equal to or more than 10 mass % and equal to or less than 50 mass %.
    Type: Application
    Filed: November 8, 2012
    Publication date: September 4, 2014
    Applicant: NEC ENERGY DEVICES, LTD.
    Inventors: Yuka Chikugo, Hitoshi Ishikawa, Yasutaka Kono, Ippei Waki, Koh Ishiguchi