Patents by Inventor Takao Satoo

Takao Satoo 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).

  • Multi-site remote-copy system
    Patent number: 7461226
    Abstract: Two storage areas are created in a first storage subsystem, a synchronous remote copy is performed from a first storage area included in the first storage subsystem to a storage area included in a second storage subsystem, and an asynchronous remote copy is performed from a second storage area included in the first storage subsystem to a storage area included in a third storage subsystem. Besides, a computer accessing the first storage subsystem performs mirroring to both the storage areas included in the first storage subsystem.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: December 2, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Takashige Iwamura, Takashi Oeda, Takao Satoo
  • Multi-site remote-copy system
    Publication number: 20070198791
    Abstract: Two storage areas are created in a first storage subsystem, a synchronous remote copy is performed from a first storage area included in the first storage subsystem to a storage area included in a second storage subsystem, and an asynchronous remote copy is performed from a second storage area included in the first storage subsystem to a storage area included in a third storage subsystem. Besides, a computer accessing the first storage subsystem performs mirroring to both the storage areas included in the first storage subsystem.
    Type: Application
    Filed: April 26, 2007
    Publication date: August 23, 2007
    Inventors: Takashige Iwamura, Takashi Oeda, Takao Satoo
  • Multi-site remote-copy system
    Patent number: 7228398
    Abstract: Two storage areas are created in a first storage subsystem, a synchronous remote copy is performed from a first storage area included in the first storage subsystem to a storage area included in a second storage subsystem, and an asynchronous remote copy is performed from a second storage area included in the first storage subsystem to a storage area included in a third storage subsystem. Besides, a computer accessing the first storage subsystem performs mirroring to both the storage areas included in the first storage subsystem.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: June 5, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Takashige Iwamura, Takashi Oeda, Takao Satoo
  • Multi-site remote-copy system
    Patent number: 7130974
    Abstract: Two storage areas are created in a first storage subsystem, a synchronous remote copy is performed from a first storage area included in the first storage subsystem to a storage area included in a second storage subsystem, and an asynchronous remote copy is performed from a second storage area included in the first storage subsystem to a storage area included in a third storage subsystem. Besides, a computer accessing the first storage subsystem performs mirroring to both the storage areas included in the first storage subsystem.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: October 31, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Takashige Iwamura, Takashi Oeda, Takao Satoo
  • Multi-site remote-copy system
    Publication number: 20060195670
    Abstract: Two storage areas are created in a first storage subsystem, a synchronous remote copy is performed from a first storage area included in the first storage subsystem to a storage area included in a second storage subsystem, and an asynchronous remote copy is performed from a second storage area included in the first storage subsystem to a storage area included in a third storage subsystem. Besides, a computer accessing the first storage subsystem performs mirroring to both the storage areas included in the first storage subsystem.
    Type: Application
    Filed: April 28, 2006
    Publication date: August 31, 2006
    Inventors: Takashige Iwamura, Takashi Oeda, Takao Satoo
  • Multi-site remote-copy system
    Publication number: 20050038968
    Abstract: Two storage areas are created in a first storage subsystem, a synchronous remote copy is performed from a first storage area included in the first storage subsystem to a storage area included in a second storage subsystem, and an asynchronous remote copy is performed from a second storage area included in the first storage subsystem to a storage area included in a third storage subsystem. Besides, a computer accessing the first storage subsystem performs mirroring to both the storage areas included in the first storage subsystem.
    Type: Application
    Filed: October 2, 2003
    Publication date: February 17, 2005
    Inventors: Takashige Iwamura, Takashi Oeda, Takao Satoo