Patents by Inventor Yukiko Arizono

Yukiko Arizono 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 spin control
    Patent number: 8111476
    Abstract: A disk drive configured to control spindle spin is provided. The disk drive includes a spindle motor for spinning a disk configured for storing data, a nonvolatile memory comprising instructions associated with a first process for spin-up of the spindle motor from a power-on mode and the nonvolatile memory comprising instructions associated with a second process for spin-up of the spindle motor from a power save mode, a controller for determining which of the first or the second process for spin-up of the spindle motor to implement in accordance with the instructions stored in the nonvolatile memory and a motor driver for spinning up the spindle motor according to the first process or according to the second process for spin-up of the spindle motor.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: February 7, 2012
    Assignee: Hitachi Global Storage Technologies, Netherlands B.V.
    Inventors: Yukiko Arizono, Kazuyuki Ishibashi, Yoshikatsu Fujii
  • DISK DRIVE SPIN CONTROL
    Publication number: 20100157463
    Abstract: A disk drive configured to control spindle spin is provided. The disk drive includes a spindle motor for spinning a disk configured for storing data, a nonvolatile memory comprising instructions associated with a first process for spin-up of the spindle motor from a power-on mode and the nonvolatile memory comprising instructions associated with a second process for spin-up of the spindle motor from a power save mode, a controller for determining which of the first or the second process for spin-up of the spindle motor to implement in accordance with the instructions stored in the nonvolatile memory and a motor driver for spinning up the spindle motor according to the first process or according to the second process for spin-up of the spindle motor.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 24, 2010
    Inventors: Yukiko ARIZONO, Kazuyuki Ishibashi, Yoshikatsu Fujii