Patents by Inventor Kazumichi Egashira

Kazumichi Egashira 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).

  • Magneto-optic thin film for memory devices
    Patent number: 4170689
    Abstract: A magneto-optic thin film for memory devices, having a composition defined by the formulaMn.sub.x (Cu.sub.l-y,Ni.sub.y,).sub.y Bi.sub.zwherein x+y+z=1, 0.15.ltoreq.x.ltoreq.0.70, 0.10.ltoreq.y .ltoreq.0.55, 0.11.ltoreq.z.ltoreq.0.55 and 0<y'<1. The properties of the film are further improved by adding Ti, V, Cr, Fe, Nb, Te, Y, Ce, Nd, Gd, Dy, Co, Pd or Rh.
    Type: Grant
    Filed: June 28, 1977
    Date of Patent: October 9, 1979
    Assignee: Nippon Telegraph and Telephone Public Corporation
    Inventors: Akinori Katsui, Kazumichi Egashira