Patents by Inventor Naoka Hirabayashi

Naoka Hirabayashi 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).

  • BINDER FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY ELECTRODE, ELECTRODE MIXTURE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND ELECTRICAL DEVICE
    Publication number: 20200299495
    Abstract: There is provided an electrode binder that has sufficient binding force and can reduce the resistance of a nonaqueous electrolyte secondary battery. The binder for a nonaqueous electrolyte secondary battery electrode comprises a copolymer of a vinyl alcohol and an alkali metal-neutralized product of ethylenically unsaturated carboxylic acid; and at least one of poly(meth)acrylic acid and an alkali metal-neutralized product of poly(meth)acrylic acid.
    Type: Application
    Filed: September 26, 2018
    Publication date: September 24, 2020
    Inventors: Shun HASHIMOTO, Naoka HIRABAYASHI, Masako KINNO
  • Electrolyte solution for electrochemical devices, aluminum electrolytic capacitor, and electric double layer capacitor
    Patent number: 9583272
    Abstract: The present invention aims to provide an electrolyte solution for electrochemical devices, which has excellent thermal stability and high decomposition voltage and produces a small amount of evaporation at high temperatures. The present invention also aims to provide an aluminum electrolytic capacitor and an electric double layer capacitor, both of which include the electrolyte solution for electrochemical devices. The present invention relates to an electrolyte solution for electrochemical devices, the electrolyte solution including a solvent and an electrolyte, the solvent containing a sulfone compound represented by the formula (1): wherein R represents a C1-6 alkyl group.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: February 28, 2017
    Assignee: Sumitomo Seika Chemicals Co., Ltd.
    Inventors: Shunji Oyama, Noriko Yamamoto, Naoka Hirabayashi
  • ELECTROLYTE SOLUTION FOR ELECTROCHEMICAL DEVICES, ALUMINUM ELECTROLYTIC CAPACITOR, AND ELECTRIC DOUBLE LAYER CAPACITOR
    Publication number: 20150076389
    Abstract: The present invention aims to provide an electrolyte solution for electrochemical devices, which has excellent thermal stability and high decomposition voltage and produces a small amount of evaporation at high temperatures. The present invention also aims to provide an aluminum electrolytic capacitor and an electric double layer capacitor, both of which include the electrolyte solution for electrochemical devices. The present invention relates to an electrolyte solution for electrochemical devices, the electrolyte solution including a solvent and an electrolyte, the solvent containing a sulfone compound represented by the formula (1): wherein R represents a C1-6 alkyl group.
    Type: Application
    Filed: February 8, 2013
    Publication date: March 19, 2015
    Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Shunji Oyama, Noriko Yamamoto, Naoka Hirabayashi