Patents by Inventor Hiromi Yamaki

Hiromi Yamaki 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).

  • System for controlling numerically controlled machine tool used for cutting threads
    Patent number: 4086517
    Abstract: A system for controlling the operation of a numerically controlled machine tool used for cutting threads on workpieces, in which means are provided so that the quality of the products may not be adversely affected even when the thread cutting operation is interrupted for some reasons incidental to the thread cutting.
    Type: Grant
    Filed: April 6, 1976
    Date of Patent: April 25, 1978
    Assignee: Okuma Machinery Works Ltd.
    Inventors: Hiromi Yamaki, Hiroaki Arai