Patents by Inventor Akihisa Shimada

Akihisa Shimada 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).

  • Differential apparatus
    Patent number: 9188213
    Abstract: A differential apparatus is provided with a case; a pinion gear; a pair of side gears meshing with the pinion gear; a spherically depressed pinion gear supporting surface portion formed on an inner surface of the case to support a spherically projecting back side portion of the pinion gear; and spherically depressed side gear supporting surface portions formed on the inner surface of the case to respectively support spherically projecting back side portions of the side gears. The projecting back side portions of the side gears which are slidable on the depressed side gear supporting surface portions are formed on tooth portions of the side gears.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: November 17, 2015
    Assignee: GKN Driveline Japan LTD.
    Inventors: Satoshi Aiba, Akihisa Shimada
  • DIFFERENTIAL APPARATUS
    Publication number: 20120115669
    Abstract: A differential apparatus is provided with a case; a pinion gear; a pair of side gears meshing with the pinion gear; a spherically depressed pinion gear supporting surface portion formed on an inner surface of the case to support a spherically projecting back side portion of the pinion gear; and spherically depressed side gear supporting surface portions formed on the inner surface of the case to respectively support spherically projecting back side portions of the side gears. The projecting back side portions of the side gears which are slidable on the depressed side gear supporting surface portions are formed on tooth portions of the side gears.
    Type: Application
    Filed: November 8, 2011
    Publication date: May 10, 2012
    Applicant: GKN DRIVELINE JAPAN LTD.
    Inventors: Satoshi Aiba, Akihisa Shimada