Patents by Inventor Katuo Yamazaki

Katuo Yamazaki 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).

  • Attachments for fitting tools to spindles
    Patent number: 4548532
    Abstract: An attachment for fitting a tool to a hollow spindle of a machine tool, in a case where a shank portion of the tool has a taper-size smaller than that of a tapered hole of the spindle, comprises a hollow attachment body to be secured to the lower end of a ram of the machine tool, a sleeve rotatably supported in the attachment body, and an arbor assembly disposed axially movably in the sleeve. The arbor assembly comprises a stud arbor, a pull-stud to be engaged with a collet chuck disposed in the spindle, and a collet chuck to be engaged with a pull-stud of the tool inserted into a tapered hole of the sleeve.
    Type: Grant
    Filed: March 31, 1983
    Date of Patent: October 22, 1985
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Koya Watanabe, Katuo Yamazaki, Sadaji Hayama