Patents by Inventor Niroshi Nishida

Niroshi Nishida 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).

  • Actuator arm with magnetic flux response to bias arm to a stop position
    Patent number: 5541792
    Abstract: A magnetic disk apparatus wherein a magnetic member mounted on a bobbin made of a non-magnetic material is disposed at a specific position effective for the full range of movement of a transducer head such that the magnetic member and thus the head is attracted by the leakage flux in a VCM, and the attracting force thus derived has a component that produces a rotation moment in only one direction around the pivot axis of the head to bias the head toward a non-data portion of a data storage disk.
    Type: Grant
    Filed: January 18, 1995
    Date of Patent: July 30, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Yoshihiko Kinoshita, Niroshi Nishida, Tatsuya Ishigaki, Kenjiro Kai, Atsushi Ito