Patents by Inventor Katsuhito KUSAKAI

Katsuhito KUSAKAI 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).

  • Grease composition for a constant-velocity joint
    Patent number: 11279899
    Abstract: A grease composition for a constant-velocity joint includes a mineral oil, a thickener, a molybdenum dithiocarbamate, a potassium borate hydrate, and a zinc dialkyldithiophosphate, wherein a content of the molybdenum dithiocarbamate is 1.2% by mass or more and 8% by mass or less, a content of the zinc dialkyldithiophosphate is 0.3% by mass or more and 2.0% by mass or less, and a content of the potassium borate hydrate is 0.28% by mass or more and 1.9% by mass or less, and wherein a mass ratio of the content of the molybdenum dithiocarbamate to the content of the potassium borate hydrate (molybdenum dithiocarbamate/potassium borate hydrate) is 2 or more and 13 or less, and a mass ratio of the content of the zinc dialkyldithiophosphate to the content of the potassium borate hydrate (zinc dialkyldithiophosphate/potassium borate hydrate) is 0.5 or more and 3.6 or less.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: March 22, 2022
    Assignees: HONDA MOTOR CO., LTD., ENEOS CORPORATION
    Inventors: Katsuhito Kusakai, Yasuo Suzuki, Kazuya Matsuoka, Toru Izumi, Yusuke Ayame
  • GREASE COMPOSITION FOR A CONSTANT-VELOCITY JOINT
    Publication number: 20210340459
    Abstract: A grease composition for a constant-velocity joint includes a mineral oil, a thickener, a molybdenum dithiocarbamate, a potassium borate hydrate, and a zinc dialkyldithiophosphate, wherein a content of the molybdenum dithiocarbamate is 1.2% by mass or more and 8% by mass or less, a content of the zinc dialkyldithiophosphate is 0.3% by mass or more and 2.0% by mass or less, and a content of the potassium borate hydrate is 0.28% by mass or more and 1.9% by mass or less, and wherein a mass ratio of the content of the molybdenum dithiocarbamate to the content of the potassium borate hydrate (molybdenum dithiocarbamate/potassium borate hydrate) is 2 or more and 13 or less, and a mass ratio of the content of the zinc dialkyldithiophosphate to the content of the potassium borate hydrate (zinc dialkyldithiophosphate/potassium borate hydrate) is 0.5 or more and 3.6 or less.
    Type: Application
    Filed: March 31, 2021
    Publication date: November 4, 2021
    Applicants: Honda Motor Co., Ltd., ENEOS Corporation
    Inventors: Katsuhito KUSAKAI, Yasuo SUZUKI, Kazuya MATSUOKA, Toru IZUMI, Yusuke AYAME