Patents by Inventor Yuki Naganuma

Yuki Naganuma 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: 9367265
    Abstract: In a storage system 1, a storage apparatus A having a first pool 1430 including segments as unit storage areas and a storage apparatus B having a second pool 1430 having the same configuration are communicably connected to each other. In the storage system, an external volume identifier is associated with a logical volume 1420 included in the first pool 1430, the external volume identifier being used by a controller 1500 in the storage apparatus B to identify and manage the logical volume 1420 as an external volume 1425 that is a virtual volume in the storage apparatus B. Moreover, a volume identifier 5110 of the logical volume 1420 included in the first pool 1430 is rewritten into the external volume identifier in order to enable the storage apparatus B to utilize the logical volume 1420 created from the first pool 1430.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: June 14, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Yuki Naganuma, Hirokazu Ikeda, Nobuhiro Maki, Masayasu Asano, Shinichiro Kanno
  • Publication number: 20160156568
    Abstract: A computer system comprising computers, wherein the computers include a first computer and second computers for providing resources to a business system. The business system includes a first VM capable of changing its performance by executing scale-out, and a second VMs capable of changing their performance by executing scale-up. The resource optimizing module included in the first computer is configured to: execute first processing for applying resource changing methods that are light in processing load to the active second VM and the standby second VM in a case of detecting an incident of an increase in load on the active second VM; and execute second processing for applying resource changing methods that are heavy in processing load to the active second VM and the standby second VM in a case of increasing the load on the active second VM.
    Type: Application
    Filed: March 3, 2015
    Publication date: June 2, 2016
    Inventors: Yuki NAGANUMA, Noriko NAKAJIMA, Soichi TAKASHIGE, Tomohiro MORIMURA
  • Publication number: 20150321176
    Abstract: An objective of the present invention is to provide a method for producing a catalyst for exhaust gas removal having excellent heat tolerance and purification performance within a wide range of atmospheres and a catalyst obtained by the production method. The present invention relates to a method for supporting catalyst metal particles, comprising: (a) adding an iridium precursor and a palladium precursor to a solvent containing at least one member selected from the group consisting of polyvinylpyrrolidone, N-methylpyrrolidone, N-vinyl-2-pyrrolidone, and ethylene glycol; (b) adding a reducing agent to the obtained catalyst metal colloid; (c) obtaining a concentrated solution containing catalyst metal particles by subjecting the obtained solution to heat reflux; and (d) supporting the catalyst metal particles on a carrier, wherein the iridium content of the catalyst metal particles accounts for 3% to 10% by mass of the total mass of iridium and palladium.
    Type: Application
    Filed: November 28, 2013
    Publication date: November 12, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuki NAGANUMA, Yuki AOKI, Hiromasa SUZUKI
  • Patent number: 9182926
    Abstract: A storage apparatus coupled to a host device comprises a virtual volume which is a virtual logical volume configured of multiple virtual areas and a pool configured of multiple actual area groups of different performances. A controller manages pool status information which is the information showing which actual area is allocated to which virtual area and access load related to the virtual areas. A management system of the storage apparatus, with reference to the pool status information at multiple points of time from past to present and an access load threshold which is equal to or larger than 1, estimates the used capacity of each actual area group at points of time in the future, calculates the installed/removed amount of each actual area group which is the difference between the estimated used capacity and the current storage capacity, and performs the processing based on the calculated result.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: November 10, 2015
    Assignee: HITACHI, LTD.
    Inventors: Yuki Naganuma, Hirokazu Ikeda, Hironori Emaru, Koichi Murayama, Shinichiro Kanno
  • Publication number: 20150295642
    Abstract: An optical active cable includes an optical cable, optical modules disposed at both ends of the optical cable and each including a transmission part including a light emitting element and a reception part including a light receiving element, a light intensity detection part disposed in each of the optical modules to detect an intensity of a light received by the light receiving element, a communication means to transmit and receive a data of the light intensity detected by the light intensity detection part between the optical modules, and a light intensity transmission reception part disposed in each of the optical modules to transmit the data of the light intensity detected by the light intensity detection part to an opposite one of the optical modules via the communication means, and to receive the data of the light intensity transmitted from an opposite one of the optical modules via the communication means.
    Type: Application
    Filed: May 30, 2014
    Publication date: October 15, 2015
    Applicant: Hitachi Metals, Ltd.
    Inventors: Masayuki NIKAIDO, Hiroki KATAYAMA, Yuki NAGANUMA
  • Publication number: 20150134717
    Abstract: The backup management system includes a storage device that retains a location management table that stores therein at least one of position specifying information uniquely specifying a location provided by a computer resource in each cloud service and an area specifying information specifying a predetermined area including the location provided without uniquely specifying the location provided, and a processing device configured to perform a process of receiving a designation related to a computer resource as a backup target and a backup requirement, from a user of the cloud service, and a process of specifying as a backup destination a computer resource that has a position relation with the computer resource as the backup target satisfying the backup requirement, based on a designation from the user and at least one of the position specifying information and the area specifying information.
    Type: Application
    Filed: November 7, 2014
    Publication date: May 14, 2015
    Inventors: Yuki NAGANUMA, Yuichi TAGUCHI
  • Publication number: 20150074349
    Abstract: A storage apparatus coupled to a host device comprises a virtual volume which is a virtual logical volume configured of multiple virtual areas and a pool configured of multiple actual area groups of different performances. A controller manages pool status information which is the information showing which actual area is allocated to which virtual area and access load related to the virtual areas. A management system of the storage apparatus, with reference to the pool status information at multiple points of time from past to present and an access load threshold which is equal to or larger than 1, estimates the used capacity of each actual area group at points of time in the future, calculates the installed/removed amount of each actual area group which is the difference between the estimated used capacity and the current storage capacity, and performs the processing based on the calculated result.
    Type: Application
    Filed: November 12, 2014
    Publication date: March 12, 2015
    Applicant: Hitachi, Ltd.
    Inventors: Yuki NAGANUMA, Hirokazu IKEDA, Hironori EMARU, Koichi MURAYAMA, Shinichiro KANNO
  • Patent number: 8918585
    Abstract: A storage apparatus coupled to a host device comprises a virtual volume which is a virtual logical volume configured of multiple virtual areas and a pool configured of multiple actual area groups of different performances. A controller manages pool status information which is the information showing which actual area is allocated to which virtual area and access load related to the virtual areas. A management system of the storage apparatus, with reference to the pool status information at multiple points of time from past to present and an access load threshold which is equal to or larger than 1, estimates the used capacity of each actual area group at points of time in the future, calculates the installed/removed amount of each actual area group which is the difference between the estimated used capacity and the current storage capacity, and performs the processing based on the calculated result.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: December 23, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Yuki Naganuma, Hirokazu Ikeda, Hironori Emaru, Koichi Murayama, Shinichiro Kanno
  • Patent number: 8694727
    Abstract: An object of the present invention is to allocate a volume to an appropriate tier in a pool in accordance with the performance of the volume. Multiple tiers 1K are created in a pool 1B. A pool volume that matches the performance required by a tier is allocated to each tier. An information acquisition part 1D acquires information related to respective storage apparatuses 1, 2, and information related to the performance of each volume. A tier control part 1E allocates a pool volume to any tier of the respective tiers, based on the performance information.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: April 8, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Yuki Naganuma, Hirokazu Ikeda, Wataru Okada
  • Patent number: 8667098
    Abstract: A storage cluster including a first storage apparatus and a second storage apparatus is defined. Communication between the first storage apparatus and the second storage apparatus uses a first network and an access request from a host computer uses a second network. Each of the first and second storage apparatuses defines internal LUs by using storage devices included in that storage apparatus. The first storage apparatus defines other internal LUs by using internal LUs of the second storage apparatus and the second storage apparatus defines other internal LUs by using internal LUs of the first storage apparatus.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: March 4, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Yuki Naganuma, Hirokazu Ikeda, Wataru Okada, Akira Yamamoto, Shinichiro Kanno
  • Publication number: 20140025888
    Abstract: In a storage system 1, a storage apparatus A having a first pool 1430 including segments as unit storage areas and a storage apparatus B having a second pool 1430 having the same configuration are communicably connected to each other. In the storage system, an external volume identifier is associated with a logical volume 1420 included in the first pool 1430, the external volume identifier being used by a controller 1500 in the storage apparatus B to identify and manage the logical volume 1420 as an external volume 1425 that is a virtual volume in the storage apparatus B. Moreover, a volume identifier 5110 of the logical volume 1420 included in the first pool 1430 is rewritten into the external volume identifier in order to enable the storage apparatus B to utilize the logical volume 1420 created from the first pool 1430.
    Type: Application
    Filed: September 25, 2013
    Publication date: January 23, 2014
    Applicant: Hitachi, Ltd.
    Inventors: Yuki NAGANUMA, Hirokazu IKEDA, Nobuhiro MAKI, Masayasu ASANO, Shinichiro KANNO
  • Patent number: 8572346
    Abstract: In a storage system 1, a storage apparatus A having a first pool 1430 including segments as unit storage areas and a storage apparatus B having a second pool 1430 having the same configuration are communicably connected to each other. In the storage system, an external volume identifier is associated with a logical volume 1420 included in the first pool 1430, the external volume identifier being used by a controller 1500 in the storage apparatus B to identify and manage the logical volume 1420 as an external volume 1425 that is a virtual volume in the storage apparatus B. Moreover, a volume identifier 5110 of the logical volume 1420 included in the first pool 1430 is rewritten into the external volume identifier in order to enable the storage apparatus B to utilize the logical volume 1420 created from the first pool 1430.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: October 29, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Yuki Naganuma, Hirokazu Ikeda, Nobuhiro Maki, Masayasu Asano, Shinichiro Kanno
  • Patent number: 8521954
    Abstract: The configuration of volumes provided by a plurality of storage apparatuses with an external connection function is optimized. By associating a virtual volume provided to the host computer with a real volume of another storage apparatus other than their own, the plurality of storage apparatuses manage the real volume of the other storage apparatus as their own real volume, and a management computer comprises a detection unit which detects a correspondence relationship between the virtual volume of one storage apparatus among the plurality of storage apparatuses and the real volume of the one storage apparatus or of the other storage apparatus; and a modification unit which, if the real volume is added to any of the plurality of the storage apparatuses, modifies the correspondence relationship between the virtual volume and the real volume associated with the virtual volume, according to the correspondence relationship detected by the detection unit.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: August 27, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Norifumi Nishikawa, Hirokazu Ikeda, Yuki Naganuma
  • Patent number: 8473703
    Abstract: Even if no port of the attribute communicable with communication ports which the other storage control apparatuses comprise exists among the communication ports which the storage control apparatus comprises, connecting the respective storage control apparatuses as communicable. Among communication ports, the migration source communication port and the migration destination communication port are selected. The path connected to the migration source communication port is migrated to the migration destination communication port, and the migration source communication port is made a free communication port. The attribute of the free communication port is changed to a specified attribute, and the communication port of the other storage control apparatus is connected to the communication port.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: June 25, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Anna Naito, Yuki Naganuma, Wataru Okada, Hirokazu Ikeda
  • Patent number: 8423746
    Abstract: A storage system having at least two storage apparatuses capable of partitioning an internal resource into logical partitions and managing the logical partitions, and which replicates data written into a primary volume of a primary storage apparatus as the replication source storage apparatus to a secondary volume of a secondary storage apparatus as the replication destination storage apparatus, including: a configuration information sending unit for sending configuration information of the logical partition, to which the primary volume belongs, to the secondary storage apparatus; and a logical partition setting unit for setting the configuration of the logical partition to which the secondary volume belongs based on the configuration information of the logical partition to which the primary volume belongs sent from the configuration information sending unit.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: April 16, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Yuki Naganuma, Hironori Emaru, Toshimichi Kishimoto, Nobuhiro Maki
  • Publication number: 20130036266
    Abstract: An object of the present invention is to allocate a volume to an appropriate tier in a pool in accordance with the performance of the volume. Multiple tiers 1K are created in a pool 1B. A pool volume that matches the performance required by a tier is allocated to each tier. An information acquisition part 1D acquires information related to respective storage apparatuses 1, 2, and information related to the performance of each volume. A tier control part 1E allocates a pool volume to any tier of the respective tiers, based on the performance information.
    Type: Application
    Filed: August 1, 2011
    Publication date: February 7, 2013
    Inventors: Yuki Naganuma, Hirokazu Ikeda, Wataru Okada
  • Patent number: 8271761
    Abstract: A storage system having at least two storage apparatuses capable of partitioning an internal resource into logical partitions and managing the logical partitions, and which replicates data written into a primary volume of a primary storage apparatus as the replication source storage apparatus to a secondary volume of a secondary storage apparatus as the replication destination storage apparatus, including: a configuration information sending unit for sending configuration information of the logical partition, to which the primary volume belongs, to the secondary storage apparatus; and a logical partition setting unit for setting the configuration of the logical partition to which the secondary volume belongs based on the configuration information of the logical partition to which the primary volume belongs sent from the configuration information sending unit.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: September 18, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Yuki Naganuma, Hironori Emaru, Toshimichi Kishimoto, Nobuhiro Maki
  • Publication number: 20120216005
    Abstract: Even if no port of the attribute communicable with communication ports which the other storage control apparatuses comprise exists among the communication ports which the storage control apparatus comprises, connecting the respective storage control apparatuses as communicable. Among communication ports, the migration source communication port and the migration destination communication port are selected. The path connected to the migration source communication port is migrated to the migration destination communication port, and the migration source communication port is made a free communication port. The attribute of the free communication port is changed to a specified attribute, and the communication port of the other storage control apparatus is connected to the communication port.
    Type: Application
    Filed: February 23, 2011
    Publication date: August 23, 2012
    Inventors: Anna Naito, Yuki Naganuma, Wataru Okada, Hirokazu Ikeda
  • Publication number: 20120191941
    Abstract: A storage system having at least two storage apparatuses capable of partitioning an internal resource into logical partitions and managing the logical partitions, and which replicates data written into a primary volume of a primary storage apparatus as the replication source storage apparatus to a secondary volume of a secondary storage apparatus as the replication destination storage apparatus, including: a configuration information sending unit for sending configuration information of the logical partition, to which the primary volume belongs, to the secondary storage apparatus; and a logical partition setting unit for setting the configuration of the logical partition to which the secondary volume belongs based on the configuration information of the logical partition to which the primary volume belongs sent from the configuration information sending unit.
    Type: Application
    Filed: April 3, 2012
    Publication date: July 26, 2012
    Inventors: Yuki NAGANUMA, Hironori EMARU, Toshimichi KISHIMOTO, Nobuhiro MAKI
  • Publication number: 20120144112
    Abstract: The configuration of volumes provided by a plurality of storage apparatuses with an external connection function is optimized. By associating a virtual volume provided to the host computer with a real volume of another storage apparatus other than their own, the plurality of storage apparatuses manage the real volume of the other storage apparatus as their own real volume, and a management computer comprises a detection unit which detects a correspondence relationship between the virtual volume of one storage apparatus among the plurality of storage apparatuses and the real volume of the one storage apparatus or of the other storage apparatus; and a modification unit which, if the real volume is added to any of the plurality of the storage apparatuses, modifies the correspondence relationship between the virtual volume and the real volume associated with the virtual volume, according to the correspondence relationship detected by the detection unit.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 7, 2012
    Inventors: Norifumi Nishikawa, Hirokazu Ikeda, Yuki Naganuma