Patents by Inventor Nakayama Yasuo

Nakayama Yasuo 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).

  • Portable surface inspector
    Patent number: 6442857
    Abstract: A portable surface inspector comprises a straight guide rail, a table engaging the guide rail to be movable along the guide rail, a stage engaging the table to be movable in the direction of a transverse axis crossing at right angles with the longitudinal axis of the guide rail, a non-contact displacement sensor fixed to the stage, a first driving means for driving the table, a first coordinate detecting means for detecting the longitudinal axis coordinate of the non-contact displacement sensor, a second driving means for driving the stage, a second coordinate detecting means for detecting the transverse axis coordinate of the non-contact displacement sensor, and a coordinate correcting means for correcting the transverse axis coordinate of the non-contact displacement sensor with the deflection in the direction of the transverse axis of the guide rail.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: September 3, 2002
    Assignee: Toto Ltd.
    Inventors: Kasukawa Atsuhiko, Nakayama Yasuo, Uchimura Takeshi
  • PORTABLE SURFACE INSPECTOR
    Publication number: 20020083607
    Abstract: A portable surface inspector comprises a straight guide rail, a table engaging the guide rail to be movable along the guide rail, a stage engaging the table to be movable in the direction of a transverse axis crossing at right angles with the longitudinal axis of the guide rail, a non-contact displacement sensor fixed to the stage, a first driving means for driving the table, a first coordinate detecting means for detecting the longitudinal axis coordinate of the non-contact displacement sensor, a second driving means for driving the stage, a second coordinate detecting means for detecting the transverse axis coordinate of the non-contact displacement sensor, and a coordinate correcting means for correcting the transverse axis coordinate of the non-contact displacement sensor with the deflection in the direction of the transverse axis of the guide rail.
    Type: Application
    Filed: December 28, 2000
    Publication date: July 4, 2002
    Inventors: Kasukawa Atsuhiko, Nakayama Yasuo, Uchimura Takeshi