Patents by Inventor Katuro Yamaguchi

Katuro Yamaguchi 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).

  • Solvent-resistant electrical steel sheet capable of stress relief annealing and process
    Patent number: 6638633
    Abstract: Electrical steel sheet can be produced by baking at low temperatures and is capable of stress relief annealing and has excellent solvent resistance and has an insulating coating containing substantially no chromium components harmful to environment; the electrical steel sheet has an insulating coating comprising a resin and an inorganic colloid which is silica, alumina or alumina-containing silica.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: October 28, 2003
    Assignee: Kawasaki Steel Corporation
    Inventors: Yuka Komori, Katuro Yamaguchi, Keiji Sato