Patents by Inventor Masaoki Sumi

Masaoki Sumi 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).

  • Synchronism equipment for gear cutting machines
    Patent number: 4414495
    Abstract: Apparatus for synchronizing the rotating cutter and rotating workpiece of a gear cutting machine, featuring, in one aspect, correcting synchronism errors due to the time lag between application of a command signal and a corresponding movement of the workpiece by delaying or advancing the command signal by an amount dependent on the time lag and, in another aspect, synchronizing circuits which process pulse-encoded measurements of cutter rotation and axial translation to provide a command signal for driving the workpiece.
    Type: Grant
    Filed: October 27, 1981
    Date of Patent: November 8, 1983
    Assignee: Kashifuji Works, Ltd.
    Inventors: Masaoki Sumi, Tomoyuki Doi