Patents by Inventor Kazuhiko Nagayama

Kazuhiko Nagayama 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).

  • Precision positioning device
    Patent number: 4585379
    Abstract: In effecting positioning of a workpiece relative to a working tool, indexing is carried out by obtaining precision measurement of the relative distance between the workpiece and the working tool by using a laser beam. Positioning can be effected with improved precision and working can be achieved with improved dimensional accuracy.
    Type: Grant
    Filed: December 22, 1981
    Date of Patent: April 29, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Kazuhiko Nagayama, Masami Masuda, Yukio Maeda