Patents by Inventor Shigeo Tomioka

Shigeo Tomioka 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).

  • Plastic core for an elastically shrinkable tubular cover
    Patent number: 4503105
    Abstract: A hollow tubular core for supporting an elastic tubular cover member in a highly radially stretched condition comprises a cylindrical plastic tube having a plurality of circumferentially spaced, axially extending lugs on the inner wall of the tube and a continuous helical cut in the wall of the tube from the exterior surface thereof severing the tube into a continuous narrow strip with only the lugs connected axially along the length of the tube.
    Type: Grant
    Filed: January 20, 1984
    Date of Patent: March 5, 1985
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Shigeo Tomioka