Patents by Inventor Junji AKAHANE

Junji AKAHANE 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).

  • Conductive paste for lithium-ion battery positive electrodes and mixture paste for lithium-ion battery positive electrodes
    Patent number: 10355281
    Abstract: This invention relates to a conductive paste for lithium-ion battery positive electrodes and a mixture paste for a lithium ion battery positive electrode that have an easy-to-apply viscosity, even when a relatively small amount of a dispersion resin is incorporated. More specifically, the invention provides a conductive paste for lithium-ion battery positive electrodes, the conductive paste comprising a dispersion resin (A), conductive carbon (B), and a solvent (C), the dispersion resin (A) containing a resin (A1), the resin (A1) containing, as one constituent component, a polymerizable unsaturated group-containing monomer (A1-1) represented by a specific formula.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: July 16, 2019
    Assignees: KANSAI PAINT CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Junji Akahane, Koji Endo, Takanori Ito, Atsuya Kato, Hideki Hagiwara, Machiko Abe, Kosuke Iwase, You Kato, Kazuyuki Kuwano, Sachio Takeda
  • Conductive paste and mixture paste for lithium ion battery positive electrode
    Patent number: 10256472
    Abstract: The present invention provides a conductive paste for positive electrodes of lithium-ion batteries and mixture paste for positive electrodes of lithium-ion batteries that have an easy-to-apply viscosity, even when a relatively small amount of a dispersant is incorporated. More specifically, the present invention provides a conductive paste for positive electrodes of lithium-ion batteries containing a dispersion resin (A), conductive carbon (B), and a solvent (C), the dispersion resin (A) being a copolymer of a monomer mixture comprising a polycyclic aromatic hydrocarbon-containing monomer (A-1) in an amount of 1 to 70 mass %, based on the total solids content.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: April 9, 2019
    Assignees: KANSAI PAINT CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Atsushi Tsukamoto, Junji Akahane, Koji Endo, Yoshinori Tochino, Yuta Sarukawa, Kosuke Iwase, Machiko Abe, Hideki Hagiwara
  • CONDUCTIVE PASTE FOR LITHIUM-ION BATTERY POSITIVE ELECTRODES AND MIXTURE PASTE FOR LITHIUM-ION BATTERY POSITIVE ELECTRODES
    Publication number: 20170207461
    Abstract: This invention relates to a conductive paste for lithium-ion battery positive electrodes and a mixture paste for a lithium ion battery positive electrode that have an easy-to-apply viscosity, even when a relatively small amount of a dispersion resin is incorporated. More specifically, the invention provides a conductive paste for lithium-ion battery positive electrodes, the conductive paste comprising a dispersion resin (A), conductive carbon (B), and a solvent (C), the dispersion resin (A) containing a resin (A1), the resin (A1) containing, as one constituent component, a polymerizable unsaturated group-containing monomer (A1-1) represented by a specific formula.
    Type: Application
    Filed: January 13, 2017
    Publication date: July 20, 2017
    Applicants: KANSAI PAINT CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Junji AKAHANE, Koji ENDO, Takanori ITO, Atsuya KATO, Hideki HAGIWARA, Machiko ABE, Kosuke IWASE, You KATO, Kazuyuki KUWANO, Sachio TAKEDA
  • CONDUCTIVE PASTE AND MIXTURE PASTE FOR LITHIUM ION BATTERY POSITIVE ELECTRODE
    Publication number: 20170141400
    Abstract: The present invention provides a conductive paste for positive electrodes of lithium-ion batteries and mixture paste for positive electrodes of lithium-ion batteries that have an easy-to-apply viscosity, even when a relatively small amount of a dispersant is incorporated. More specifically, the present invention provides a conductive paste for positive electrodes of lithium-ion batteries containing a dispersion resin (A), conductive carbon (B), and a solvent (C), the dispersion resin (A) being a copolymer of a monomer mixture comprising a polycyclic aromatic hydrocarbon-containing monomer (A-1) in an amount of 1 to 70 mass %, based on the total solids content.
    Type: Application
    Filed: November 2, 2016
    Publication date: May 18, 2017
    Applicants: KANSAI PAINT CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Atsushi TSUKAMOTO, Junji AKAHANE, Koji ENDO, Yoshinori TOCHINO, Yuta SARUKAWA, Kosuke IWASE, Machiko ABE, Hideki HAGIWARA