Patents by Inventor Yuutarou ASABA

Yuutarou ASABA 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).

  • Composition for secondary battery electrode
    Patent number: 11239467
    Abstract: The present invention aims to provide a composition for a secondary battery electrode which is excellent in dispersibility of an active material and adhesiveness, capable of preventing battery deterioration and failure due to moisture absorption, and capable of providing a high-capacity secondary battery. Provided is a composition for a secondary battery electrode, containing: an active material; a binder; and an organic solvent, the binder containing a polyvinyl acetal resin, the polyvinyl acetal resin having an electron-donating group that has an acid dissociation constant in water of less than 16 and an electron-withdrawing group, the polyvinyl acetal resin having a degree of polymerization of 250 to 800 and a hydroxy group content of 35 to 70 mol %.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: February 1, 2022
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventor: Yuutarou Asaba
  • COMPOSITION FOR SECONDARY BATTERY ELECTRODE
    Publication number: 20200220175
    Abstract: The present invention aims to provide a composition for a secondary battery electrode which is excellent in dispersibility of an active material and adhesiveness, capable of preventing battery deterioration and failure due to moisture absorption, and capable of providing a high-capacity secondary battery. Provided is a composition for a secondary battery electrode, containing: an active material; a binder; and an organic solvent, the binder containing a polyvinyl acetal resin, the polyvinyl acetal resin having an electron-donating group that has an acid dissociation constant in water of less than 16 and an electron-withdrawing group, the polyvinyl acetal resin having a degree of polymerization of 250 to 800 and a hydroxy group content of 35 to 70 mol %.
    Type: Application
    Filed: September 27, 2018
    Publication date: July 9, 2020
    Applicant: SEKISUI CHEMICAL CO., LTD.
    Inventor: Yuutarou ASABA