Patents by Inventor Atsushi Asayama

Atsushi Asayama 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: 9459801
    Abstract: According to one embodiment, a tiered storage system includes a high-speed storage device, a low-speed storage device, and a storage controller. The storage controller interchanges a location destination of data of a first logical chunk to which a third storage area of the low-speed storage device is allocated and a location destination of data of a second logical chunk to which a first storage area of the high-speed storage device is allocated and whose access frequency statistical value is smaller than that of the first logical chunk. The storage controller reallocates a second storage area of the high-speed storage device to a set of logical chunks to which the third storage area is allocated.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: October 4, 2016
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Solutions Corporation
    Inventor: Atsushi Asayama
  • Publication number: 20150268880
    Abstract: According to one embodiment, a tiered storage system includes a high-speed storage device, a low-speed storage device, and a storage controller. The storage controller interchanges a location destination of data of a first logical chunk to which a third storage area of the low-speed storage device is allocated and a location destination of data of a second logical chunk to which a first storage area of the high-speed storage device is allocated and whose access frequency statistical value is smaller than that of the first logical chunk. The storage controller reallocates a second storage area of the high-speed storage device to a set of logical chunks to which the third storage area is allocated.
    Type: Application
    Filed: September 30, 2014
    Publication date: September 24, 2015
    Inventor: Atsushi ASAYAMA
  • Patent number: 9092252
    Abstract: According to one embodiment, in response to a connection request from a second virtual machine corresponding to a second client terminal on which a first user has newly executed a logon operation, an information processing apparatus determines whether a first user profile associated with a first identifier of the first user is being used by another client terminal. If the first user profile is being used, the apparatus causes a first virtual machine corresponding to the another client terminal to unmount the first storage location, and transmits the information indicative of the path to the first storage location to a second virtual machine corresponding to the second client terminal.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: July 28, 2015
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventor: Atsushi Asayama
  • Patent number: 8954305
    Abstract: A circuit simulation apparatus acquires wiring connection information indicating connection data in an electric circuit, selects a component constituting the circuit based on the wiring connection information, performs a setting of replacing the selected component with each resistor having different resistance values, generates at least one of netlists using the acquired wiring connection information and at least one of the set resistance values, calculates a value of an equivalent power source and a value of an internal resistance thereof for a part of the circuit using the acquired wiring connection information and at least one of the generated netlists, and calculates a resistance value of the selected component and a power consumption for the resistance value using the value of the equivalent power source and the value of the internal resistance.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: February 10, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Eiji Yajima, Shunko Kaneko, Atsushi Asayama, Ryo Yamazaki
  • Publication number: 20130227564
    Abstract: According to one embodiment, in response to a connection request from a second virtual machine corresponding to a second client terminal on which a first user has newly executed a logon operation, an information processing apparatus determines whether a first user profile associated with a first identifier of the first user is being used by another client terminal. If the first user profile is being used, the apparatus causes a first virtual machine corresponding to the another client terminal to unmount the first storage location, and transmits the information indicative of the path to the first storage location to a second virtual machine corresponding to the second client terminal.
    Type: Application
    Filed: September 11, 2012
    Publication date: August 29, 2013
    Inventor: Atsushi Asayama
  • Publication number: 20130166732
    Abstract: In one embodiment, there is provided a client managing system including: a server; a client connected to the server via the Internet. The server includes: a generator configured to generate a policy data for the client; a first storage configured to store the policy data; a delivering module configured to deliver the policy data to the client; and a second storage configured to store a first index data therein, wherein the first index data corresponds to a first log data representing contents of operations performed on the client. The client includes: a sender configured to: i) generate a second log data representing contents of operations performed on the client; ii) send the second log data to a file storage connected to the client via a network; iii) generate a second index data corresponding to the second log data; and iv) send the second index data to the server.
    Type: Application
    Filed: July 6, 2012
    Publication date: June 27, 2013
    Inventor: Atsushi Asayama
  • Publication number: 20130006997
    Abstract: According to one embodiment, an information processing apparatus includes a storage, a log receiver and a merge module. The storage stores a plurality of log data, and first index data corresponding to the plurality of log data. The log receiver receives first log data and second index data from a client apparatus connected via a network, the second index data corresponding to the first log data. The merge module generates third index data by merging the first index data and the second index data. The storage stores the plurality of log data, the first log data and the third index data.
    Type: Application
    Filed: March 1, 2012
    Publication date: January 3, 2013
    Inventor: Atsushi Asayama
  • Publication number: 20100324879
    Abstract: A circuit simulation apparatus acquires wiring connection information indicating connection data in an electric circuit, selects a component constituting the circuit based on the wiring connection information, performs a setting of replacing the selected component with each resistor having different resistance values, generates at least one of netlists using the acquired wiring connection information and at least one of the set resistance values, calculates a value of an equivalent power source and a value of an internal resistance thereof for a part of the circuit using the acquired wiring connection information and at least one of the generated netlists, and calculates a resistance value of the selected component and a power consumption for the resistance value using the value of the equivalent power source and the value of the internal resistance.
    Type: Application
    Filed: June 18, 2010
    Publication date: December 23, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Eiji Yajima, Shunko Kaneko, Atsushi Asayama, Ryo Yamazaki
  • Patent number: 7099602
    Abstract: A fixing apparatus has a coil for forming a magnetic field; a fixing rotatable member for fixing an unfixed toner image carried on a recording material thereon by heat generated by eddy currents which is generated by the magnetic field; an electric power supply control for controlling electric power supply to the coil; and a rotating mechanism for rotating the fixing rotatable member. On the basis of a state of rotation of the fixing rotatable member a predetermined time after operation the rotating mechanism, the electric power supply to the coil thereafter is selectively carried out.
    Type: Grant
    Filed: March 20, 2006
    Date of Patent: August 29, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventor: Atsushi Asayama
  • Publication number: 20060159476
    Abstract: A fixing apparatus has a coil for forming a magnetic field; a fixing rotatable member for fixing an unfixed toner image carried on a recording material thereon by heat generated by eddy currents which is generated by the magnetic field; an electric power supply control for controlling electric power supply to the coil; and a rotating mechanism for rotating the fixing rotatable member. On the basis of a state of rotation of the fixing rotatable member a predetermined time after operation the rotating mechanism, the electric power supply to the coil thereafter is selectively carried out.
    Type: Application
    Filed: March 20, 2006
    Publication date: July 20, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Atsushi Asayama
  • Patent number: 7058328
    Abstract: A fixing apparatus has a coil for forming a magnetic field; a fixing rotatable member for fixing an unfixed toner image carried on a recording material thereon by heat generated by eddy currents which is generated by the magnetic field; an electric power supply control for controlling electric power supply to the coil; and a rotating mechanism for rotating the fixing rotatable member. On the basis of a state of rotation of the fixing rotatable member a predetermined time after operation the rotating mechanism, the electric power supply to the coil thereafter is selectively carried out.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: June 6, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventor: Atsushi Asayama
  • Publication number: 20060062584
    Abstract: A fixing apparatus has a coil for forming a magnetic field; a fixing rotatable member for fixing an unfixed toner image carried on a recording material thereon by heat generated by eddy currents which is generated by the magnetic field; an electric power supply control for controlling electric power supply to the coil; and a rotating mechanism for rotating the fixing rotatable member. On the basis of a state of rotation of the fixing rotatable member a predetermined time after operation the rotating mechanism, the electric power supply to the coil thereafter is selectively carried out.
    Type: Application
    Filed: November 1, 2005
    Publication date: March 23, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Atsushi Asayama
  • Patent number: 6983112
    Abstract: A fixing apparatus has a coil for forming a magnetic field; a fixing rotatable member for fixing an unfixed toner image carried on a recording material thereon by heat generated by eddy currents which is generated by the magnetic field; an electric power supply control for controlling electric power supply to the coil; and a rotating mechanism for rotating the fixing rotatable member. On the basis of a state of rotation of the fixing rotatable member a predetermined time after operation the rotating mechanism, the electric power supply to the coil thereafter is selectively carried out.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: January 3, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventor: Atsushi Asayama
  • Publication number: 20050169654
    Abstract: A fixing apparatus has a coil for forming a magnetic field; a fixing rotatable member for fixing an unfixed toner image carried on a recording material thereon by heat generated by eddy currents which is generated by the magnetic field; an electric power supply control for controlling electric power supply to the coil; and a rotating mechanism for rotating the fixing rotatable member. On the basis of a state of rotation of the fixing rotatable member a predetermined time after operation the rotating mechanism, the electric power supply to the coil thereafter is selectively carried out.
    Type: Application
    Filed: March 28, 2005
    Publication date: August 4, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Atsushi Asayama
  • Patent number: 6909861
    Abstract: A fixing apparatus has a coil for forming a magnetic field; a fixing rotatable member for fixing an unfixed toner image carried on a recording material thereon by heat generated by eddy currents which is generated by the magnetic field; an electric power supply control for controlling electric power supply to the coil; and a rotating mechanism for rotating the fixing rotatable member. On the basis of a state of rotation of the fixing rotatable member a predetermined time after operation the rotating mechanism, the electric power supply to the coil thereafter is selectively carried out.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: June 21, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Atsushi Asayama
  • Patent number: 6900994
    Abstract: A power source control chip which is a high voltage controlling portion is added to an ASIC for sequence control constituting a sequence control unit. A PWM signal is sent from the high voltage controlling portion to a high voltage producing portion constituting a high voltage unit, and an output detection signal is sent from the high voltage producing portion to the high voltage controlling portion, thereby effecting feedback control. At that time, a modulated wave PWM/detection signal amplitude-modulated with the PWM signal as a carrier wave and with the output detection signal as a modulating wave is produced and is transmitted onto a signal line, whereby the number of signal lines can be decreased.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: May 31, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Atsushi Asayama
  • Publication number: 20040000897
    Abstract: A power source control chip which is a high voltage controlling portion is added to an ASIC for sequence control constituting a sequence control unit. A PWM signal is sent from the high voltage controlling portion to a high voltage producing portion constituting a high voltage unit, and an output detection signal is sent from the high voltage producing portion to the high voltage controlling portion, thereby effecting feedback control. At that time, a modulated wave PWM/detection signal amplitude-modulated with the PWM signal as a carrier wave and with the output detection signal as a modulating wave is produced and is transmitted onto a signal line, whereby the number of signal lines can be decreased.
    Type: Application
    Filed: June 26, 2003
    Publication date: January 1, 2004
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Atsushi Asayama
  • Publication number: 20030219269
    Abstract: A fixing apparatus includes a coil for forming a magnetic field; a fixing rotatable member for fixing an unfixed toner image carried on a recording material thereon by heat generated by eddy currents which is generated by the magnetic field; electric power supply control means for controlling electric power supply to the coil; rotating means for rotating the fixing rotatable member; wherein on the basis of a state of rotation of the fixing rotatable member a predetermined time after operation the rotating means, the electric power supply to the coil thereafter is selectively carried out or not.
    Type: Application
    Filed: March 25, 2003
    Publication date: November 27, 2003
    Applicant: Canon Kabushiki Kaisha
    Inventor: Atsushi Asayama
  • Patent number: 6490178
    Abstract: In a switching power circuit, one end of a primary winding of a transformer having a plurality of windings is connected to a voltage source, and the other end is connected to a return side of the voltage source through a first switching device. At least one of secondary windings of the transformer is connected to a forward-type rectifier circuit, which is comprised of a rectifier diode, a flywheel diode, a choke coil, and a smoothing condenser, through a MAGAMP. A second switching device is connected in parallel with the flywheel diode, and the second switching device is turned on/off according to an output of the secondary winding of the transformer or according to a signal acquired by inverting the secondary winding output.
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: December 3, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventor: Atsushi Asayama
  • Patent number: 6040662
    Abstract: In an inverter apparatus for a fluorescent lamp which is used as an original exposure lamp of a copy machine, a first secondary winding to which a choking coil and the fluorescent lamp are connected in series and a second secondary winding to which a capacitor is connected in series are formed on a secondary side of an inverter transducer, and a switching element for switching whether the first and second secondary windings are connected in series or in parallel and a diode bridge are further provided.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: March 21, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventor: Atsushi Asayama