Patents by Inventor Yasuro Horikawa

Yasuro Horikawa 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).

  • Additive for non-aqueous electrolyte solution of secondary battery and non-aqueous electrolyte secondary battery
    Patent number: 7695862
    Abstract: The invention is concerned with an additive for a non-aqueous electrolyte of a secondary battery having a high ability dissolving a support salt and a low viscosity and comprising a phosphazene derivative represented by the following formula (I): (wherein R1 is independently a halogen element or a monovalent substituent; and X is an organic group containing at least one element selected from the group consisting of carbon, silicon, nitrogen, phosphorus, oxygen and sulfur) as well as a non-aqueous electrolyte secondary battery comprising an electrolyte containing this additive and having excellent high-rate characteristics.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: April 13, 2010
    Assignee: Bridgestone Corporation
    Inventors: Masashi Otsuki, Yasuro Horikawa
  • Additive for nonaqueous electrolytic solution of electric double layer capacitor and nonaqueous electrolyte electric double layer capacitor
    Publication number: 20060092596
    Abstract: The invention is concerned with an additive for a non-aqueous electrolyte of an electric double layer capacitor having a high dissolving power of a support salt and a low viscosity and comprising a phosphazene derivative represented by the following formula (I): (wherein R1 is independently a halogen element or a monovalent substituent; and X is an organic group containing at least one element selected from the group consisting of carbon, silicon, nitrogen, phosphorus, oxygen and sulfur) as well as a non-aqueous electrolyte electric double layer capacitor comprising an electrolyte containing this additive and having excellent high-rate characteristics.
    Type: Application
    Filed: December 24, 2003
    Publication date: May 4, 2006
    Inventors: Masashi Otsuki, Yasuro Horikawa
  • Additive for nonaqueous electrolyte solution of secondary battery and nonaqueous electrolyte secondary battery
    Publication number: 20060046151
    Abstract: The invention is concerned with an additive for a non-aqueous electrolyte of a secondary battery having a high ability dissolving a support salt and a low viscosity and comprising a phosphazene derivative represented by the following formula (I): (wherein R1 is independently a halogen element or a monovalent substituent; and X is an organic group containing at least one element selected from the group consisting of carbon, silicon, nitrogen, phosphorus, oxygen and sulfur) as well as a non-aqueous electrolyte secondary battery comprising an electrolyte containing this additive and having excellent high-rate characteristics.
    Type: Application
    Filed: December 24, 2003
    Publication date: March 2, 2006
    Inventors: Masashi Otsuki, Yasuro Horikawa