Patents by Inventor Munehisa Goto

Munehisa Goto 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 disc apparatus having improved head position control
    Patent number: 4896228
    Abstract: A data recording magnetic disc apparatus having a plurality of recording surfaces formed on one or more discs has a single servo sector containing servo data for transducer position control provided on each recording surface, the servo sectors of respective surfaces being disposed at respectively different angular positions. Servo data obtained from all of the servo sectors is employed for transducer position control with respect to track center lines, the control including correction for the effects of eccentric rotation of the discs. Accurate head position control is achieved for high data density recording, with a minimum region of each recording track being occupied by servo data.
    Type: Grant
    Filed: June 5, 1987
    Date of Patent: January 23, 1990
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shuji Amakasu, Munehisa Goto