Patents by Inventor Tomio Ushigoe

Tomio Ushigoe 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).

  • Hollow-spindle method of machining a short-length workpiece
    Patent number: 4827815
    Abstract: A method of machining short-length workpieces provides a hollow spindle adapted to be driven in rotation around a longitudinal axis thereof, the spindle having first and second chucks at one and the other longitudinal ends thereof, respectively. A short-length workpiece is gripped by the first chuck and the spindle and workpiece gripped by the first chuck are rotated for performing a primary operation of machining on one end of the workpiece. The first chuck is then loosened to release the workpiece and the workpiece conveyed within the first chuck through the hollow interior of the spindle into the second chuck, which is in a loosened state, by pushing the workpiece from one longitudinal end of the spindle to other. The second chuck is then tightened to grip the workpiece so as to rotate the workpiece together with the spindle for performing a secondary operation of machining on the opposite end of the workpiece. Finally, the second chuck is loosened to release the workpiece.
    Type: Grant
    Filed: March 29, 1988
    Date of Patent: May 9, 1989
    Assignee: Kabushiki Kaisha Miyano
    Inventors: Yoshikuni Hata, Tomio Ushigoe
  • Machine tools, preferably lathes
    Patent number: 4763549
    Abstract: A machine tool for successively machining opposite ends of short-length workpieces has a hollow spindle. A chuck having a hollow inside is provided on at least one end of the hollow spindle. The hollow space of the spindle and chuck provides a smooth and continuous guide surface for easy and successive transfer of the workpieces therethrough.
    Type: Grant
    Filed: January 27, 1987
    Date of Patent: August 16, 1988
    Assignee: Kabushiki Kaisha Miyano
    Inventors: Yoshikuni Hata, Tomio Ushigoe
  • Multiple-function machine tool with two spindles
    Patent number: 4612832
    Abstract: A two-spindle machine tool having a fixed first headstock with a main spindle extending in a direction Z and with a chuck, and two tool heads with turrets further has a movable second headstock with a main spindle extending in the direction Z and with a chuck, the second headstock and the two tool heads being supported on respective slide mechanisms which enable them to move in the direction Z and also in a direction X perpendicular thereto relative to the first headstock, and which are so positioned as to enable the two headstocks and two tool heads to function in respective operational regions enabling machining tools held by the turrets to perform various modes of machining including independent but simultaneous machining of respective workpieces held in the two chucks and simultaneous or successive machining of a single workpiece held by either of the chucks.
    Type: Grant
    Filed: April 8, 1985
    Date of Patent: September 23, 1986
    Assignee: Kabushiki Kaisha Miyano Tekkosho
    Inventors: Tomio Ushigoe, Takeo Kobayashi, Yoshitsugu Yoshinaga, Keiro Tsuchiya, Kazuo Miyagawa