Patents by Inventor Atsushi Ishikawa

Atsushi Ishikawa 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).

  • Publication number: 20130086305
    Abstract: A nonvolatile semiconductor storage system has multiple nonvolatile semiconductor storage media, a control circuit having a media interface group (one or more interface devices) coupled to the multiple nonvolatile semiconductor storage media, and multiple switches. The media interface group and the multiple switches are coupled via data buses, and each switch and each of two or more nonvolatile chips are coupled via a data bus. The switch is configured so as to switch a coupling between a data bus coupled to the media interface group and a data bus coupled to any of multiple nonvolatile chips that are coupled to this switch. The control circuit partitions write-target data into multiple data elements, switches a coupling by controlling the multiple switches, and distributively sends the multiple data elements to multiple nonvolatile chips.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 4, 2013
    Inventors: Atsushi Ishikawa, Koji Sonoda, Go Uehara, Junji Ogawa, Hideyuki Koseki
  • Publication number: 20120198273
    Abstract: A disk array system, upon detecting a failure in any data disk from among a plurality of data disks providing one or more RAID groups, conducting a correction copy to any spare disk, using one or more other data disks belonging to the same RAID group as the data disk causing the failure. When the data disk causing the failure has been replaced with a new data disk, the disk array system alters the management so that the data disk can be managed as a spare disk, and the spare disk can be managed as a data disk.
    Type: Application
    Filed: April 10, 2012
    Publication date: August 2, 2012
    Applicant: HITACHI, LTD.
    Inventors: Atsushi ISHIKAWA, Kenji ONABE
  • Patent number: 8225039
    Abstract: A storage system includes a virtual volume, a plurality of RAID groups, a pool unit for managing a plurality of first real storage areas and a controller. If a write command related to the virtual volume is issued from a higher-level device, the controller selects a prescribed second real storage area from among respective second real storage areas included in a prescribed first real storage area, and associates this prescribed second real storage area with a prescribed area inside the virtual volume corresponding to the write command, and which associates one virtual volume with one first real storage area. A migration destination determination unit selects a migration-targeted second real storage area from among the respective second real storage areas associated with the virtual volume, and selects a migration-destination first real storage area, which is to become the migration destination of data stored in the migration-targeted second real storage area.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: July 17, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Yutaro Kawaguchi, Atsushi Ishikawa, Katsuhiro Uchiumi
  • Publication number: 20120173814
    Abstract: A storage system includes a virtual volume, a plurality of RAID groups, a pool unit for managing a plurality of first real storage areas and a controller. If a write command related to the virtual volume is issued from a higher-level device, the controller selects a prescribed second real storage area from among respective second real storage areas included in a prescribed first real storage area, and associates this prescribed second real storage area with a prescribed area inside the virtual volume corresponding to the write command, and which associates one virtual volume with one first real storage area. A migration destination determination unit selects a migration-targeted second real storage area from among the respective second real storage areas associated with the virtual volume, and selects a migration-destination first real storage area, which is to become the migration destination of data stored in the migration-targeted second real storage area.
    Type: Application
    Filed: March 6, 2012
    Publication date: July 5, 2012
    Applicant: HITACHI, LTD.
    Inventors: Yutaro Kawaguchi, Atsushi Ishikawa, Katsuhiro Uchiumi
  • Publication number: 20120172829
    Abstract: To provide a drug solution preparing kit which can be handled with ease in a substantially aseptic manner, and has no risk that a leakage of a drug solution such as a splash and a dispersion of an aerosol to an ambient environment occurs upon preparation of the drug solution There is provided a drug solution preparing kit including a pre-filled syringe and a transfusing tool, wherein the pre-filled syringe includes a sealing member which seals the tip end and can not be removed from the tip end, and that the transfusing tool includes a one-way valve which can discharge only gas from the system in an irreversible manner, and a filter which is provided so as to adjoin to the second communication channel with respect to the one-way valve.
    Type: Application
    Filed: March 7, 2012
    Publication date: July 5, 2012
    Inventors: Mitsuru HASEGAWA, Atsushi ISHIKAWA, Suguru OYAGI, Takeshi OHGURO
  • Patent number: 8211082
    Abstract: To provide a drug solution preparing kit which can be handled with ease in a substantially aseptic manner, and has no risk that a leakage of a drug solution such as a splash and a dispersion of an aerosol to an ambient environment occurs upon preparation of the drug solution There is provided a drug solution preparing kit including a pre-filled syringe and a transfusing tool, wherein the pre-filled syringe includes a sealing member which seals the tip end and can not be removed from the tip end, and that the transfusing tool includes a one-way valve which can discharge only gas from the system in an irreversible manner, and a filter which is provided so as to adjoin to the second communication channel with respect to the one-way valve.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: July 3, 2012
    Assignee: Nipro Corporation
    Inventors: Mitsuru Hasegawa, Atsushi Ishikawa, Suguru Oyagi, Takeshi Ohguro
  • Patent number: 8196292
    Abstract: A part cartridge for a mounter device used in a mounting process for mounting electronic parts on a substrate by heating the substrate to a predetermined temperature after the electronic parts are mounted on the substrate put on a conveying carrier by the mounter device, comprising holding part holding the substrate in the state of being fitted to the conveying carrier, and a guide tape holding the holding part. The holding member is stored in the state of being wound together with the guide tape so that the holding part can be mounted on the conveying carrier by the mounter device. By this, a method of holding and carrying the substrate for mounting the holding part on the conveying carrier by using the mounter device can be adopted in the mounting process. The deflection of the substrate in reflow can be securely prevented while suppressing cost by effectively utilizing the existing mounting line and devices.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: June 12, 2012
    Assignee: Daisho Denshi Co., Ltd.
    Inventors: Akihiro Kimura, Osamu Deguchi, Koji Annou, Atsushi Ishikawa
  • Patent number: 8184007
    Abstract: In a wireless reader/writer according to one example of the present invention, a reader/writer main body 120 emits a radio wave with a different output power from an antenna 121 when a base unit 140 is detected to be mounted on an enclosure. In addition, when a base unit 140A is detected to be mounted on the enclosure, a reader/writer main body 120A controls a switching device 132 to emit radio waves simultaneously or alternately from a first antenna and a second antenna.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: May 22, 2012
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventor: Atsushi Ishikawa
  • Patent number: 8176359
    Abstract: A disk array system, upon detecting a failure in any data disk from among a plurality of data disks providing one or more RAID groups, conducting a correction copy to any spare disk, using one or more other data disks belonging to the same RAID group as the data disk causing the failure. When the data disk causing the failure has been replaced with a new data disk, the disk array system alters the management so that the data disk can be managed as a spare disk, and the spare disk can be managed as a data disk.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: May 8, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Atsushi Ishikawa, Kenji Onabe
  • Patent number: 8125269
    Abstract: An integrated circuit device includes an I/O circuit which buffers and outputs an input signal D from a pad when an enable signal ENB is set at a second voltage level, a circuit block to which an output signal from the I/O circuit is input, and a malfunction prevention circuit which outputs to the circuit block an output signal QP of which a voltage level is set by a first power supply VDDC in a period T1 in which the signal ENB is set at a first voltage level and a period T2 including a period in which the signal ENB changes from the first voltage level to the second voltage level, and outputs to the circuit block the output signal QP corresponding to an output signal QI from the I/O circuit in a period T3 in which the signal ENB is set at the second voltage level.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: February 28, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Hiroaki Nomizo, Atsushi Ishikawa, Tsuyoshi Tamura
  • Patent number: 8108562
    Abstract: Provided is a storage subsystem capable of improving the data processing speed by balancing the load on processors and controllers. This storage subsystem includes a controller for controlling the input and output of data to and from a storage apparatus that provides to a host computer a plurality of logical units to become a storage extent for the host computer to read and write data, processes a command issued by the host computer, and has a storage resource in relation to the logical unit. The controller has a local memory for storing the command, and a processor configured from a plurality of cores for controlling the input and output of data to and from the logical unit to be subject to the input and output of the data based on the command. The local memory stores association information representing the correspondence between the plurality of logical units and the plurality of cores.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: January 31, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Kousuke Komikado, Koji Iwamitsu, Tetsuya Shirogane, Atsushi Ishikawa, Takahide Okuno, Mitsuhide Sato, Toshiaki Minami, Hiroaki Yuasa
  • Publication number: 20110191537
    Abstract: A storage controller allocates a real storage area to a virtual volume in chunk units each comprising a plurality of pages. In a case where load bias occurs between RAID groups, data reallocation is carried out. A real storage area inside a pool is allocated to a virtual volume 5 in accordance with a write access. A RAID group 6 comprises a plurality of chunks. Each chunk 7 comprises a plurality of pages 8. The pages 8, from within the chunk 7 that has been allocated to the virtual volume 5, are used. A data migration plan is created and stored in page units based on the load of each RAID group. When a host 2 issues a command to a migration-targeted page, data is migrated while this command is being processed.
    Type: Application
    Filed: October 9, 2009
    Publication date: August 4, 2011
    Applicant: HITACHI, LTD.
    Inventors: Yutaro Kawaguchi, Atsushi Ishikawa, Katsuhiro Uchiumi
  • Patent number: 7963029
    Abstract: A jig for holding and conveyance includes a plate having a weak-adherence adhesive pattern on a surface and a printed circuit board having a conductive portion and a non-conductive portion on the surface of an insulating substrate. The weak-adherence adhesive pattern is formed at a position corresponding to the non-conductive portion. Alternatively, the weak-adherence adhesive pattern subjected to surface roughening is formed on a surface of the weak-adhesive layer at a position corresponding to the conductive portion.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: June 21, 2011
    Assignee: Daisho Denshi Co., Ltd.
    Inventors: Atsushi Ishikawa, Osamu Deguchi, Katsuyoshi Kameyama, Makoto Nagaoka, Akihiro Kimura
  • Patent number: 7925831
    Abstract: A journal write unit writes journal data into a third storage device. The journal data includes an identifier of a logical volume in a first storage device into which data has been written, information of a location in which the data is stored in the logical volume, update time which is current time acquired from a timing mechanism, and the data. A second write unit refers to update time of the journal data stored in the third storage device, selects journal data for which a difference between current time acquired from the timing mechanism and the update time is longer than a detection time stored in the third storage device, and writes the data into a place indicated by the location information, in a logical volume in the second storage device in the order of update time in the selected journal data.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: April 12, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Akira Murotani, Atsushi Ishikawa, Tetsuya Kishimoto
  • Patent number: 7849260
    Abstract: Proposed is a storage controller and its control method for speeding up the processing time in response to a command in a simple manner while reducing the load of a controller that received a command targeting a non-associated logical volume. This storage controller includes a plurality of controllers for controlling the input and output of data to and from a corresponding logical unit based on a command retained in a local memory, and the local memory stores association information representing the correspondence of the logical units and the controllers and address information of the local memory in each of the controllers of a self-system and another-system.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: December 7, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Takahide Okuno, Mitsuhide Sato, Toshiaki Minami, Hiroaki Yuasa, Kousuke Komikado, Koji Iwamitsu, Tetsuya Shirogane, Atsushi Ishikawa
  • Patent number: 7834763
    Abstract: A wireless tag reader/writer control system includes a control apparatus for controlling a plurality of wireless tag readers/writers transmitting a signal to and receiving a signal from a wireless tag by transmitting an electromagnetic wave radiation execution timing arrangement including the time span authorized to radiate an electric wave at a time and the radiation time intervals between radiations of electric wave to each of the wireless tag readers/writers and a plurality of wireless tag readers/writers, each having a reader/writer main body for transmitting a signal to and receiving a signal from a wireless tag and receiving the execution of radiation time intervals between radiations of electric wave from the control apparatus.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: November 16, 2010
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventor: Atsushi Ishikawa
  • Patent number: 7730474
    Abstract: When the main power source is turned on, a storage system creates a revision table for storing the revision of main firmware installed in a resource management processor of the storage system. Next, the main firmware is loaded from a system drive into a cache memory. When the revision of the main firmware installed in the resource management processor is old, this main firmware is renewed to the main firmware loaded into the cache.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: June 1, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Izuta, Seiki Morita, Atsushi Ishikawa
  • Patent number: 7707456
    Abstract: Proposed is a storage apparatus capable of alleviating the burden of maintenance work when a failure occurs in a part configuring the storage apparatus. This storage apparatus includes multiple disk drives and spare disk drives, and multiple controllers. When a failure occurs, this storage apparatus determines the operability status of the storage apparatus based on failure information. When operation can be continued, the storage apparatus continues to operate without performing any maintenance such as part replacement, and if operation cannot be continued, data is migrated to another storage apparatus.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: April 27, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Koichi Tanaka, Keiichi Tezuka, Atsushi Ishikawa, Azuma Kano, Koji Arai, Yusuke Nonaka
  • Publication number: 20100077106
    Abstract: Provided is a storage subsystem capable of improving the data processing speed by balancing the load on processors and controllers. This storage subsystem includes a controller for controlling the input and output of data to and from a storage apparatus that provides to a host computer a plurality of logical units to become a storage extent for the host computer to read and write data, processes a command issued by the host computer, and has a storage resource in relation to the logical unit. The controller has a local memory for storing the command, and a processor configured from a plurality of cores for controlling the input and output of data to and from the logical unit to be subject to the input and output of the data based on the command. The local memory stores association information representing the correspondence between the plurality of logical units and the plurality of cores.
    Type: Application
    Filed: September 4, 2009
    Publication date: March 25, 2010
    Inventors: Kousuke Komikado, Koji Iwamitsu, Tetsuya Shirogane, Atsushi Ishikawa, Takahide Okuno, Mitsuhide Sato, Toshiaki Minami, Hiroaki Yuasa
  • Publication number: 20100050430
    Abstract: A part cartridge for a mounter device used in a mounting process for mounting electronic parts on a substrate by heating the substrate to a predetermined temperature after the electronic parts are mounted on the substrate put on a conveying carrier by the mounter device, comprising holding part holding the substrate in the state of being fitted to the conveying carrier, and a guide tape holding the holding part. The holding member is stored in the state of being wound together with the guide tape so that the holding part can be mounted on the conveying carrier by the mounter device. By this, a method of holding and carrying the substrate for mounting the holding part on the conveying carrier by using the mounter device can be adopted in the mounting process. The deflection of the substrate in reflow can be securely prevented while suppressing cost by effectively utilizing the existing mounting line and devices.
    Type: Application
    Filed: August 27, 2009
    Publication date: March 4, 2010
    Applicant: DAISHO DENSHI CO., LTD.
    Inventors: Akihiro Kimura, Osamu Deguchi, Koji Annou, Atsushi Ishikawa