Patents by Inventor Kenichi Yabuki

Kenichi Yabuki 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).

  • Workpiece centering apparatus and workpiece centering method
    Patent number: 8601703
    Abstract: The positions of at least three points, which are circumferentially, and equiangularly, offset from each other, of a peripheral face of a workpiece set on a rotary table are measured using a position detection probe. The amount of runout of the axis of the workpiece and a phase position of the workpiece, at which the runout amount is largest, are calculated from the measured positions of the equiangularly offset points. The rotary table is turned to set the largest runout phase position of the workpiece in a position opposed to a workpiece contact of a centering apparatus. The relative positions of the workpiece and a position detection block are calculated using the position detection probe. The workpiece is centered by moving a centering shaft member of the centering apparatus such that the workpiece contact pushes the workpiece by a distance corresponding to the runout amount.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: December 10, 2013
    Assignee: JTEKT Corporation
    Inventors: Akira Makiuchi, Ikuya Kato, Keita Goto, Yoshihiro Somyo, Kenichi Yabuki
  • WORKPIECE CENTERING APPARATUS AND WORKPIECE CENTERING METHOD
    Publication number: 20120174424
    Abstract: The positions of at least three points, which are circumferentially, and equiangularly, offset from each other, of a peripheral face of a workpiece set on a rotary table are measured using a position detection probe. The amount of runout of the axis of the workpiece and a phase position of the workpiece, at which the runout amount is largest, are calculated from the measured positions of the equiangularly offset points. The rotary table is turned to set the largest runout phase position of the workpiece in a position opposed to a workpiece contact of a centering apparatus. The relative positions of the workpiece and a position detection block are calculated using the position detection probe. The workpiece is centered by moving a centering shaft member of the centering apparatus such that the workpiece contact pushes the workpiece by a distance corresponding to the runout amount.
    Type: Application
    Filed: December 8, 2011
    Publication date: July 12, 2012
    Applicant: JTEKT Corporation
    Inventors: Akira MAKIUCHI, Ikuya Kato, Keita Goto, Yoshihiro Somyo, Kenichi Yabuki