Patents by Inventor Hiroaki Sando

Hiroaki Sando 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 recorIding device
    Patent number: 5363251
    Abstract: In a magnetic recording device for magnetically recording Information on a magnetic recording medium by a magnetic head, the magnetic head is so oriented that the magnetic flux leaking at the head gap is at right angles with the direction of relative movement between the magnetic head and the magnetic recording medium and parallel with the surface of the magnet recording medium. The magnetic recording medium may have track portions formed of a magnetic material, and intertrack portions formed of a nonmagnetic material. The magnetic recording medium may alternatively be formed of convex track portions and concave intertrack portions.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: November 8, 1994
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masayoshi Kamo, Yuzo Maruta, Hiroaki Sando, Takashi Furuhata