Patents by Inventor Ryohsuke Shinohara

Ryohsuke Shinohara 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).

  • Disk drive clamp for clamping disks to spindle motor with elastic portion and coated contact portion
    Patent number: 6961215
    Abstract: A disk drive device includes a recording medium, a head slider having a head element for recording data on the recording medium and for reading data recorded on the recording medium, a spindle motor for rotating the recording medium, and a clamp for applying a pressing force to the recording medium to fasten the recording medium to the spindle motor. The disk drive device has a feature in which a film body formed from a material which is more pliable than a material forming the clamp is interposed between the clamp and the recording medium. Even if the clamp does not have a high flatness, the film body absorbs irregularities of the clamp. Thus, it is possible to fasten the recording medium with the clamp while apparently keeping flatness.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: November 1, 2005
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Masataka Hashizume, Ryohsuke Shinohara
  • Disk drive device and clamp
    Publication number: 20030214752
    Abstract: A disk drive device includes a recording medium, a head slider having a head element for recording data on the recording medium and for reading data recorded on the recording medium, a spindle motor for rotating the recording medium, and a clamp for applying a pressing force to the recording medium to fasten the recording medium to the spindle motor. The disk drive device has a feature in which a film body formed from a material which is more pliable than a material forming the clamp is interposed between the clamp and the recording medium. Even if the clamp does not have a high flatness, the film body absorbs irregularities of the clamp. Thus, it is possible to fasten the recording medium with the clamp while apparently keeping flatness.
    Type: Application
    Filed: May 12, 2003
    Publication date: November 20, 2003
    Applicant: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Masataka Hashizume, Ryohsuke Shinohara