Patents by Inventor Kazuyuki Hakamata

Kazuyuki Hakamata 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).

  • Joint device and motor
    Patent number: 9574616
    Abstract: A joint device includes a drive rotor fixed to a drive shaft, a driven rotor fixed to a driven shaft, and a ring-shaped buffer located between the drive rotor and the driven rotor. The drive rotor includes a drive engagement portion that projects toward the driven rotor in an axial direction. The driven rotor includes a driven engagement portion that projects toward the drive rotor in the axial direction. The buffer includes an outer surface, which includes a first engagement recess and a second engagement recess that are recessed toward a radially inner side. An outer diameter of a bottom surface of the second engagement recess is smaller than an inner diameter of the driven engagement portion or an outer diameter of a bottom surface of the first engagement recess is smaller than an inner diameter of the drive engagement portion.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: February 21, 2017
    Assignee: ASMO CO., LTD.
    Inventor: Kazuyuki Hakamata
  • JOINT DEVICE AND MOTOR
    Publication number: 20150252854
    Abstract: A joint device includes a drive rotor fixed to a drive shaft, a driven rotor fixed to a driven shaft, and a ring-shaped buffer located between the drive rotor and the driven rotor. The drive rotor includes a drive engagement portion that projects toward the driven rotor in an axial direction. The driven rotor includes a driven engagement portion that projects toward the drive rotor in the axial direction. The buffer includes an outer surface, which includes a first engagement recess and a second engagement recess that are recessed toward a radially inner side. An outer diameter of a bottom surface of the second engagement recess is smaller than an inner diameter of the driven engagement portion or an outer diameter of a bottom surface of the first engagement recess is smaller than an inner diameter of the drive engagement portion.
    Type: Application
    Filed: March 4, 2015
    Publication date: September 10, 2015
    Inventor: Kazuyuki Hakamata