Patents by Inventor Yasuyuki Anzai

Yasuyuki Anzai 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 constant velocity joint
    Patent number: 5207936
    Abstract: A grease composition for constant velocity joint is a particular combination of a urea grease composed of a lubricating oil and a urea base thickener with (A) molybdenum sulfide dialkyldithiocarbamate, (B) molybdenum disulfide, (C) zinc dithiophosphate and (D) an oiliness agent of at least one vegetable oils and fats and can attain not only reduction of induced thrust but also improvement of flaking resistance.
    Type: Grant
    Filed: February 13, 1992
    Date of Patent: May 4, 1993
    Assignee: NTN Corporation
    Inventors: Yasuyuki Anzai, Kiyoshi Takeuchi, Yoshikazu Fukumura, Yukio Hasegawa