Patents by Inventor Koji Maesaka

Koji Maesaka 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).

  • Magneto-rheological grease composition
    Patent number: 10377964
    Abstract: The invention provides a magneto-rheological grease composition which contains (a) a base oil including at least 30% by mass of an ether type synthetic oil; (b) an aliphatic diurea thickener; and (c) magnetic particles in an amount of 45 to 95% by mass based on the total mass of the composition. The magneto-rheological grease composition can show superior thermal stability, dispersion stability and magneto-rheological properties.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: August 13, 2019
    Assignees: KYODO YUSHI CO., LTD., YOKOHAMA NATIONAL UNIVERSITY
    Inventors: Hiroshi Kimura, Shinya Kondo, Tetsuo Ogawa, Makoto Hayama, Koji Maesaka, Shin Morishita, Ken Nakano, Toshihiko Shiraishi