Patents Assigned to Yoshifumi Sakurai
  • Perpendicular magnetization film
    Patent number: 4675239
    Abstract: A perpendicular magnetization amorphous thin film of an alloy of samarium, cobalt and bismuth having an easy magnetizing axis perpendicular to a plane of substrate, and the preparation thereof. According to the thin film, a large saturation magnetization is obtained along an easy magnetizing direction perpendicular to the plane of substrate. The thin film can be prepared by depositing samarium, cobalt and bismuth on the substrate without any applying a bias voltage to the substrate.
    Type: Grant
    Filed: June 10, 1985
    Date of Patent: June 23, 1987
    Assignees: Yoshifumi Sakurai, Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yoshifumi Sakurai, Koji Saiki