Patents by Inventor Hitoshi Ohtaki

Hitoshi Ohtaki 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).

  • Magnetic powder and magnetic molded article
    Patent number: 6063303
    Abstract: The present invention relates to a magnetic powder that contains resin-coated magnetic particles. The resin-coated magnetic particles include magnetic particles A and B that are formed in non-spherical shapes, with the magnetic particles A and B coated with a resin C. The resin-coated magnetic particles make it possible to increase the filling quantity of the magnetic particles A and B when the magnetic powder is employed to constitute a magnetic molded article, to ultimately improve the electromagnetic characteristics of the magnetic molded article.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: May 16, 2000
    Assignee: TDK Corporation
    Inventor: Hitoshi Ohtaki