Patents by Inventor Yoshihara Hosoya

Yoshihara Hosoya 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).

  • Method of making non-oriented electrical steel sheets having excellent magnetic properties under low magnetic field
    Patent number: 5108522
    Abstract: The present invention is to produce non-oriented electrical steel sheets having excellent magnetic property under low magnetic field by effectively checking thermal stress from introducing during cooling in a final annealing without decreasing productivity, for which when a silicon steel sheet having passed a cold rolling is cooled after a final continuous annealing, especial cooling conditions are specified only to a temperature range giving bad influences to the magnetic properties under the low magnetic field so as to prevent the introduction of the thermal strain.
    Type: Grant
    Filed: October 12, 1989
    Date of Patent: April 28, 1992
    Assignee: NKK Corporation
    Inventors: Akihiko Nishimoto, Yoshihara Hosoya, Kunikazu Tomita, Toshiaki Urabe, Masaharu Jitsukawa