Patents by Inventor Yukinori Nakamura

Yukinori Nakamura 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).

  • Eccentric archimedian screw pump of rotary displacement type
    Patent number: 4591322
    Abstract: This disclosure relates to a pump including a stator formed with a spiral pump cavity therethrough, which is generally oval in cross section, and a spiral pump rotor which is generally circular in cross section and extends through the cavity. The rotor has a shaft fixed thereto and the axis of the shaft is eccentrically located from the centerline of the spiral cavity by a distance e, so that the shaft makes a hypocycloidal motion with its axis orbiting in a circle having a radius equal to the distance e. The pump further includes a drum journalled concentrically with the spiral cavity. The shaft is journalled on the drum in parallel with the drum axis but eccentrically therefrom by the distance e.
    Type: Grant
    Filed: December 28, 1984
    Date of Patent: May 27, 1986
    Assignee: Heishin Sobi Kabushiki Kaisha
    Inventors: Tsuneo Ono, Yukinori Nakamura
  • Multifacially formed panel impact absorber
    Patent number: 3983963
    Abstract: A sheet formed with a regular series of angularly oriented panels which deforms uniformly in response to an applied force.
    Type: Grant
    Filed: June 5, 1975
    Date of Patent: October 5, 1976
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Yukinori Nakamura