Patents by Inventor Ryusuki Ito

Ryusuki Ito 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).

  • Storage system and method of controlling the same
    Patent number: 7603519
    Abstract: A storage system which manages a plurality of storage control apparatus in an integrated manner is provided. An I/O request issued by a host apparatus to a second storage control apparatus is forwarded to the second storage control apparatus through a first storage control apparatus. The first storage control apparatus has management information for the second storage control apparatus, allowing a pair comprising a logical device controlled by the first storage control apparatus and a logical device controlled by the second storage control apparatus to be created. In addition, the first storage control apparatus is capable of controlling the second storage control apparatus.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: October 13, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Takahiko Takeda, Ryusuki Ito, Keiichi Kaiya