Patents by Inventor Susumu Hashiguchi

Susumu Hashiguchi 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 RECORDING DISC
    Patent number: 3964101
    Abstract: A magnetic recording disc is made up for a rotating disc, a flexible sheet mounted on the rotating disc, a magnetic sheet carried by the flexible sheet for recording and reproducing signals by a magnetic head, and a holding means.The rotating disc has a first surface and a second surface indented from the first surface. The magnetic sheet is held together with the flexible sheet, on the first surface of the rotating disc by the holding means. The magnetic head is in close contact with the magnetic sheet over the second surface with the aid of the flexible sheet mounted on the rotating disc.
    Type: Grant
    Filed: June 15, 1973
    Date of Patent: June 15, 1976
    Inventors: Tetsuo Hino, Susumu Hashiguchi