Patents by Inventor Toyohisa Imada

Toyohisa Imada 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).

  • Patent number: 8443364
    Abstract: A user interface function for a virtual machine system based on a server or a PC is provided only by applying software without using SVP or the like. A control virtual machine is provided for controlling a virtual machine control screen which is displayed for defining virtual machines and instructing operations to the virtual machines. A virtual machine control program exclusively displays either a screen for each virtual machine or the virtual machine control screen in response to a screen switching instruction from an input device.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: May 14, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Toyohisa Imada, Takashi Shimojo, Makiko Shinohara, Yoshihiro Harima
  • Publication number: 20100186012
    Abstract: A user interface function for a virtual machine system based on a server or a PC is provided only by applying software without using SVP or the like. A control virtual machine is provided for controlling a virtual machine control screen which is displayed for defining virtual machines and instructing operations to the virtual machines. A virtual machine control program exclusively displays either a screen for each virtual machine or the virtual machine control screen in response to a screen switching instruction from an input device.
    Type: Application
    Filed: March 29, 2010
    Publication date: July 22, 2010
    Applicant: Hitachi, LTD.
    Inventors: Toyohisa Imada, Takashi Shimojo, Makiko Shinohara, Yoshihiro Harima
  • Patent number: 7721285
    Abstract: A user interface function for a virtual machine system based on a server or a PC is provided only by applying software without using SVP or the like. A control virtual machine is provided for controlling a virtual machine control screen which is displayed for defining virtual machines and instructing operations to the virtual machines. A virtual machine control program exclusively displays either a screen for each virtual machine or the virtual machine control screen in response to a screen switching instruction from an input device.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: May 18, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Toyohisa Imada, Takashi Shimojo, Makiko Shinohara, Yoshihiro Harima
  • Patent number: 7461276
    Abstract: An adjustment method is able to effectively utilize a useless CPU power of a difference between a total CPU power required by a user and a CPU power of an installed computer. In a virtual machine system in which a plurality of virtual machines are operated on a physical machine, a total CPU power which results from totalizing CPU powers required by respective virtual machines is arbitrarily set within a CPU power of the physical machine, a CPU service rate is determined in such a manner that each virtual machine is operated within the thus set total CPU power and a CPU power of a difference between the CPU power of the physical machine and the total CPU power is assigned to a maintenance virtual machine.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: December 2, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Toyohisa Imada, Takuichi Hoshina
  • Patent number: 7272799
    Abstract: A user interface function for a virtual machine system based on a server or a PC is provided only by applying software without using SVP or the like. A control virtual machine is provided for controlling a virtual machine control screen which is displayed for defining virtual machines and instructing operations to the virtual machines. A virtual machine control program exclusively displays either a screen for each virtual machine or the virtual machine control screen in response to a screen switching instruction from an input device.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: September 18, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Toyohisa Imada, Takashi Shimojo, Makiko Shinohara, Yoshihiro Harima
  • Publication number: 20070143754
    Abstract: A user interface function for a virtual machine system based on a server or a PC is provided only by applying software without using SVP or the like. A control virtual machine is provided for controlling a virtual machine control screen which is displayed for defining virtual machines and instructing operations to the virtual machines. A virtual machine control program exclusively displays either a screen for each virtual machine or the virtual machine control screen in response to a screen switching instruction from an input device.
    Type: Application
    Filed: February 12, 2007
    Publication date: June 21, 2007
    Applicant: Hitachi, Ltd.
    Inventors: Toyohisa Imada, Takashi Shimojo, Makiko Shinohara, Yoshihiro Harima
  • Publication number: 20060206893
    Abstract: An adjustment method is able to effectively utilize a useless CPU power of a difference between a total CPU power required by a user and a CPU power of an installed computer. In a virtual machine system in which a plurality of virtual machines are operated on a physical machine, a total CPU power which results from totalizing CPU powers required by respective virtual machines is arbitrarily set within a CPU power of the physical machine, a CPU service rate is determined in such a manner that each virtual machine is operated within the thus set total CPU power and a CPU power of a difference between the CPU power of the physical machine and the total CPU power is assigned to a maintenance virtual machine.
    Type: Application
    Filed: May 10, 2006
    Publication date: September 14, 2006
    Inventors: Toyohisa Imada, Takuichi Hoshina
  • Patent number: 7073076
    Abstract: An adjustment method is able to effectively utilize a useless CPU power of a difference between a total CPU power required by a user and a CPU power of an installed computer. In a virtual machine system in which a plurality of virtual machines are operated on a physical machine, a total CPU power which results from totalizing CPU powers required by respective virtual machines is arbitrarily set within a CPU power of the physical machine, a CPU service rate is determined in such a manner that each virtual machine is operated within the thus set total CPU power and a CPU power of a difference between the CPU power of the physical machine and the total CPU power is assigned to a maintenance virtual machine.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: July 4, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Toyohisa Imada, Takuichi Hoshina
  • Publication number: 20020173863
    Abstract: A user interface function for a virtual machine system based on a server or a PC is provided only by applying software without using SVP or the like. A control virtual machine is provided for controlling a virtual machine control screen which is displayed for defining virtual machines and instructing operations to the virtual machines. A virtual machine control program exclusively displays either a screen for each virtual machine or the virtual machine control screen in response to a screen switching instruction from an input device.
    Type: Application
    Filed: April 18, 2002
    Publication date: November 21, 2002
    Inventors: Toyohisa Imada, Takashi Shimojo, Makiko Shinohara, Yoshihiro Harima
  • Publication number: 20020138774
    Abstract: An adjustment method is able to effectively utilize a useless CPU power of a difference between a total CPU power required by a user and a CPU power of an installed computer. In a virtual machine system in which a plurality of virtual machines are operated on a physical machine, a total CPU power which results from totalizing CPU powers required by respective virtual machines is arbitrarily set within a CPU power of the physical machine, a CPU service rate is determined in such a manner that each virtual machine is operated within the thus set total CPU power and a CPU power of a difference between the CPU power of the physical machine and the total CPU power is assigned to a maintenance virtual machine.
    Type: Application
    Filed: May 29, 2002
    Publication date: September 26, 2002
    Applicant: Hitachi, Ltd.
    Inventors: Toyohisa Imada, Takuichi Hoshina
  • Patent number: 6408393
    Abstract: An adjustment method is able to effectively utilize a useless CPU power of a difference between a total CPU power required by a user and a CPU power of an installed computer. In a virtual machine system in which a plurality of virtual machines are operated on a physical machine, a total CPU power which results from totalizing CPU powers required by respective virtual machines is arbitrarily set within a CPU power of the physical machine, a CPU service rate is determined in such a manner that each virtual machine is operated within the thus set total CPU power and a CPU power of a difference between the CPU power of the physical machine and the total CPU power is assigned to a maintenance virtual machine.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: June 18, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Toyohisa Imada, Takuichi Hoshina
  • Patent number: 4995037
    Abstract: A method and apparatus for providing data for adjusting an electronic computer having a main storage unit, in a system including a service processor connected to the electronic computer to maintain the same, and an external storage unit for storing data of internal registers of the electronic computer, which are read out by the service processor. An adjusting program is executed by the electronic computer until a logical failure is detected in the electronic computer to be adjusted. Once the logical failure is detected, execution is stopped at an instruction an arbitrary number of instruction before the instruction on which the failure was detected. Thereafter, the electronic computer is caused to re-execute the adjusting program. Data of internal registers and the main storage unit of the electronic computer is stored in the eternal storage unit through the service processor when the electronic computer stops execution of the adjusting program.
    Type: Grant
    Filed: May 11, 1988
    Date of Patent: February 19, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Toyohisa Imada, Yoshiharu Kazama