Patents by Inventor Masaaki Ootsuki

Masaaki Ootsuki 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).

  • Touchdown bearing
    Patent number: 7786637
    Abstract: A calcium zinc phosphate-type coating is formed on at least one of those surfaces of an inner ring, an outer ring and rolling elements (balls) and further a cage (if the cage is used) (which form a touchdown bearing) contacting other members, and further a molybdenum disulfide coating is formed thereon. By doing so, the adhesion of the molybdenum disulfide coating is enhanced by microscopic pits and projections due to crystal grains on the surface of the calcium zinc phosphate-type coating, and also even when the molybdenum disulfide coating is worn out, the wearing-out of a substrate can be suppressed by the lubricating ability of the calcium zinc phosphate-type coating underlying it.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: August 31, 2010
    Assignee: JTEKT Corporation
    Inventors: Hiroshi Sekimoto, Akira Koyama, Masaaki Ootsuki
  • Touchdown Bearing
    Publication number: 20080019628
    Abstract: A calcium zinc phosphate-type coating is formed on at least one of those surfaces of an inner ring, an outer ring and rolling elements (balls) and further a cage (if the cage is used) (which form a touchdown bearing) contacting other members, and further a molybdenum disulfide coating is formed thereon. By doing so, the adhesion of the molybdenum disulfide coating is enhanced by microscopic pits and projections due to crystal grains on the surface of the calcium zinc phosphate-type coating, and also even when the molybdenum disulfide coating is worn out, the wearing-out of a substrate can be suppressed by the lubricating ability of the calcium zinc phosphate-type coating underlying it.
    Type: Application
    Filed: November 30, 2005
    Publication date: January 24, 2008
    Inventors: Hiroshi Sekimoto, Akira Koyama, Masaaki Ootsuki