Patents by Inventor Hirokazu HAMANAKA

Hirokazu HAMANAKA 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).

  • METHOD AND APPARATUS FOR MEASURING WORKPIECE ON MACHINE TOOL
    Publication number: 20110307212
    Abstract: A measuring head attached to a machine tool is swiveled by a predetermined angle. A reference sphere is then measured by the measuring head from a first direction and a second direction. Accordingly, coordinates of a center point of the reference sphere are acquired. First machine coordinates of the measuring head are coordinates when the measuring head measures the center point of the reference sphere from a first direction. Second machine coordinates of the measuring head are coordinates when the measuring head measures the center point of the reference sphere from a second direction. A 3-dimensional offset of the measuring head is acquired, based on the first machine coordinates and the second machine coordinates of the measuring head. Subsequently, the workpiece is measured by the measuring head, by using the 3-dimensional offset of the measuring head.
    Type: Application
    Filed: June 8, 2011
    Publication date: December 15, 2011
    Applicant: MORI SEIKI CO., LTD.,
    Inventors: Shizuo NISHIKAWA, Hisayoshi MORITA, Hirokazu HAMANAKA