Patents by Inventor Shunji Chiba

Shunji 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 bit
    Patent number: 5658103
    Abstract: A boring bit includes a shank adapted to be mounted on a rotary tool. A blade is mounted on the shank and is resiliently deformable to reduce its boring diameter.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: August 19, 1997
    Assignee: Mitsuhide Inokuchi
    Inventors: Mitsuhide Inokuchi, Shunji Chiba, Atsushi Otogawa