Patents by Inventor Kenzo Hashimoto

Kenzo Hashimoto 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).

  • Apparatus for holding cylindrical winding cores
    Patent number: 4026488
    Abstract: Apparatus for holding cylindrical winding cores comprises a plurality of core holders and a plurality of friction collars are mounted alternately on a single hollow shaft under axial pressure, each of friction collars being allowed to be axially moved and constrained in rotation and each of said core holders having radial expansible means which are radially expanded by an air pressure supplied through the hollow shaft to come into pressure engagement with the inner surfaces of cylindrical winding cores disposed about core holders.
    Type: Grant
    Filed: July 13, 1976
    Date of Patent: May 31, 1977
    Assignee: Nishimura Seisakusho Co., Ltd.
    Inventor: Kenzo Hashimoto