Patents by Inventor Kazutoshi Motosugi

Kazutoshi Motosugi 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).

  • Optical three-dimensional shape measuring apparatus having a device for accurately positioning and measuring an object
    Patent number: 5548405
    Abstract: An apparatus for measuring a three-dimensional shape of an object to be measured provided with a fitting portion, comprises: a body base; a rotation stage set on the base; an XY stage set on the rotation stage and provided with a fitting portion, the XY stage being movable in a predetermined horizontal direction and in a horizontal direction perpendicular thereto independently of rotation of the rotation stage; a drive control device for independently driving and controlling the rotation stage and XY stage; a holding device for holding the object to be measured, the holding device being provided with a fit portion to fit with the fitting portion of the XY stage, and a fit portion to fit with the fitting portion of the object to be measured; an R stage set above the holding device, the R stage being movable in a horizontal direction and in a direction of the diameter of the rotation stage; a first optical displacement gage provided on a lower surface of the R stage so that an optical axis thereof becomes paral
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: August 20, 1996
    Assignees: Nikon Corporation, Nikon Engineering Co., Ltd.
    Inventor: Kazutoshi Motosugi