Patents by Inventor Toshiro Hattori

Toshiro Hattori 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).

  • Abrasive tools
    Patent number: 4974373
    Abstract: An abrasive tool comprises a base and an abrasive powder bonded to the base in the form of a single-layer structure in which the particles do not substantially overlap or rest one upon another. For the bonding purpose the abrasive powder is either dispersed in a dilute solution of a binder resin and a solvent for subsequent application of the solution to the base or is spread over and fixed to a binder resin coat formed beforehand on the base.
    Type: Grant
    Filed: February 28, 1989
    Date of Patent: December 4, 1990
    Assignee: Tokyo Magnetic Printing Co., Ltd.
    Inventors: Norimichi Kawashima, Toshiro Hattori