Patents by Inventor Akio Hirota

Akio Hirota 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).

  • Thread cutting machine
    Patent number: 4813821
    Abstract: A thread cutting machine where the rate of advance of the thread cutting tool is controlled by means of a control system whereby the rotation of the tool and its rate of advance toward the workpiece are both used to control the position of the cutting tool.
    Type: Grant
    Filed: June 24, 1987
    Date of Patent: March 21, 1989
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Akio Hirota
  • Thread cutting machine
    Patent number: 4692071
    Abstract: A thread cutting machine where the rate of advance of the thread cutting tool is controlled by means of a control system whereby the rotation of the tool and its rate of advance toward the workpiece are both used to control the position of the cutting tool.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: September 8, 1987
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Akio Hirota