Patents by Inventor Youichi Muratomi

Youichi Muratomi 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 head having fluid pressure means
    Patent number: 4747006
    Abstract: A magnetic head comprises a magnetic pole placed at a position to effect a magnetic function to a magnetic recording medium to be driven; a medium supporter which is placed opposing the magnetic pole with respect to the magnetic recording medium with a certain gap between the medium supporter and the magnetic recording medium, and which has a cavity at the portion opposing said magnetic pole and a flat portion having a spread surface area formed around the cavity opposing the magnetic pole; and a fluid supplied to the cavity so that the magnetic recording medium is brought to contact with the magnetic pole by a force of the pressurized fluid from the cavity and is supported by a negative pressure produced at the flat portion.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: May 24, 1988
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hiroshi Miwa, Youichi Muratomi