Patents by Inventor Masuji Kumazawa

Masuji Kumazawa 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).

  • Process for producing steel sheet of cube-on-face texture having improved magnetic characteristics
    Patent number: 3947296
    Abstract: A process for producing an electrical steel sheet composed of cubic-on-face texture which comprises subjecting hot rolled steel sheet to primary cold rolling with a grooved roll then to a secondary cold rolling with smooth rolls, further to decarburization annealing and final finishing annealing.
    Type: Grant
    Filed: December 14, 1973
    Date of Patent: March 30, 1976
    Assignee: Nippon Steel Corporation
    Inventor: Masuji Kumazawa