Patents by Inventor Takao Kusada

Takao Kusada 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 core and method of manufacturing core
    Patent number: 5470646
    Abstract: A magnetic core comprises a ferroalloy amorphous film and an insulator layer. The preferable ferroalloy amorphous film is defined as follows:(Fe.sub.1-x T.sub.x).sub.100-y X.sub.ywherein:T is at least one element selected from Co and Ni;X is at least one element selected from Si, B, P, C andGe; and0<x.ltoreq.0.414.ltoreq.y.ltoreq.21The preferable insulator layer is made of a high polymer film, for example a polyester film. Also, the magnetic core has the magnetic characteristics of the direct current coercive force is 0.2 Oe or less, and total value of residual magnetic flux density and saturated magnetic flux density is 27 KG or more.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: November 28, 1995
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masami Okamura, Takao Sawa, Yoshiyuki Yamauchi, Takao Kusada