Patents by Inventor Masato Furusaki

Masato Furusaki 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 disk apparatus with head supporting structures of different proper oscillations
    Patent number: 5014142
    Abstract: A magnetic disk apparatus has a disk assembly including a single servo disk and a plurality of data disks, a servo-head supporting structure for supporting a servo head and data-head supporting structures for supporting data heads. These heads are so disposed as to cooperate with respective disks. The servo-head and data-head supporting structures are driven by an actuator to move the servo head and the data heads to the required positions on the corresponding disks. The servo-head supporting structure and each of the data-head supporting structures have different proper oscillations to prevent the occurrence of a resonance during a seek operation.
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: May 7, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Eiji Nakanishi, Toshio Suzuki, Masato Furusaki, Kiyoji Morita, Hiroshi Sakurai, Hiroshi Daito, Mikio Takahashi