Patents by Inventor Yoshiro Shimanouchi

Yoshiro Shimanouchi 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 array apparatus for multimedia server
    Patent number: 6055646
    Abstract: A plurality of disk array systems are realized in a single disk array apparatus, and double protection of disk arrays is achieved, whereby reliability is enhanced. Row-directional hard disk drives (HDD) connected to hard disk (HD) controllers constitute RAID4 groups. Column-directional HDDs constitute RAID3 groups. A disk region of each HDD is divided into a RAID3&4 region for storing large-volume data which is used repeatedly for a long time period, a RAID3 region for storing large-volume data which is used only for a predetermined time period, and a RAID4 region for storing small-volume data. The RAID3&4 region is protected by RAID3 and RAID4, the RAID3 region is protected by RAID3, and the RAID4 region is protected by RAID4.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: April 25, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ikuo Uchihori, Tatsunori Kanai, Yoshiro Shimanouchi