Patents by Inventor Munehiko Chiba

Munehiko Chiba 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).

  • Boring device
    Patent number: 9399259
    Abstract: A boring device according to the present invention includes: a hollow main shaft; a table supporting the main shaft rotatably about a predetermined axis; a tool holder extending in the form of a bar and configured to rotate coaxially with the main shaft; a radially protruding tool provided at a distal end portion of the tool holder; a tilting unit provided between the main shaft and the tool holder in the axis direction and configured to cause the tool holder to be inclined from the axis; a drawbar configured to be movable back and forth in the axis direction within the main shaft; a first drive unit configured to rotate the main shaft about the axis; and a second drive unit configured to move the drawbar back and forth in the axis direction.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: July 26, 2016
    Assignee: KANZAKI KOKYUKOKI MFG. CO., LTD.
    Inventor: Munehiko Chiba
  • BORING DEVICE
    Publication number: 20150023750
    Abstract: A boring device according to the present invention includes: a hollow main shaft; a table supporting the main shaft rotatably about a predetermined axis; a tool holder extending in the form of a bar and configured to rotate coaxially with the main shaft; a radially protruding tool provided at a distal end portion of the tool holder; a tilting unit provided between the main shaft and the tool holder in the axis direction and configured to cause the tool holder to be inclined from the axis; a drawbar configured to be movable back and forth in the axis direction within the main shaft; a first drive unit configured to rotate the main shaft about the axis; and a second drive unit configured to move the drawbar back and forth in the axis direction.
    Type: Application
    Filed: July 16, 2014
    Publication date: January 22, 2015
    Applicant: KANZAKI KOKYUKOKI MFG. CO., LTD.
    Inventor: Munehiko Chiba