Patents by Inventor Jun Mizuno

Jun Mizuno 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: 20120005428
    Abstract: Disclosed is a system and method for preventing deterioration in I/O performance of a computer resulted from a use of the same physical disk among different logical volumes. A volume management server 1010 groups together logical volumes which use the same physical disk of a storage device 1020 as a volume group and allocates a storage area on the physical disk to be used on a priority basis by this volume group to the volume group, and thereby a physical arrangement according to a present physical arrangement of the logical volume can be performed when an automatic expansion of the logical volume is performed thereafter so that the I/O performance deterioration of the computer caused by a mutual interference is avoided at the time of access from the computer 1030 to the storage device 1020.
    Type: Application
    Filed: September 14, 2011
    Publication date: January 5, 2012
    Inventors: JUN MIZUNO, Takeshi Ishizaki
  • Patent number: 8078815
    Abstract: A storage subsystem includes: a controller; a first logical storage area corresponding to a RAID group configured by a plurality of storage devices; and a second logical storage area corresponding to a plurality of the RAID groups each configured by the plurality of storage devices, and storing a copy of data stored in the first logical storage area. In the storage subsystem, the first and second logical storage areas form a copy group, and for starting copying from the first to second logical storage area, the controller performs a mode change, from a power saving mode to a ready mode, to the plurality of storage devices configuring the plurality of RAID groups corresponding to the second logical storage area. With such a storage subsystem, the time can be reduced for activating copy-destination storage devices to which a power saving function is applied, and the copy time is thus favorably reduced.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: December 13, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Noriko Nakajima, Yuichi Taguchi, Jun Mizuno
  • Patent number: 8073567
    Abstract: A production control apparatus of a production system provided with a storing means for storing in advance a production system model comprised of workpiece information regarding workpieces and program information regarding a plurality of work programs of robots and a plurality of machining programs of machine tools, an updating means for updating the production system model based on run status signals showing run statuses of the robots and machines tools and workpiece signals from the detectors, and an instructing means for selecting one work program and one machining program based on the updated production system model and instructing running of the selected work program and work program to the robot and machine tool. Due to this, by calling up a work program of the robot etc. in accordance with the state of the production system, it is possible to change the program and restore the system from error.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: December 6, 2011
    Assignee: Fanuc Ltd
    Inventors: Hiroji Nishi, Jun Mizuno
  • Patent number: 8037276
    Abstract: Disclosed is a system and method for preventing deterioration in I/O performance of a computer resulted from a use of the same physical disk among different logical volumes. A volume management server 1010 groups together logical volumes which use the same physical disk of a storage device 1020 as a volume group and allocates a storage area on the physical disk to be used on a priority basis by this volume group to the volume group, and thereby a physical arrangement according to a present physical arrangement of the logical volume can be performed when an automatic expansion of the logical volume is performed thereafter so that the I/O performance deterioration of the computer caused by a mutual interference is avoided at the time of access from the computer 1030 to the storage device 1020.
    Type: Grant
    Filed: January 4, 2010
    Date of Patent: October 11, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Jun Mizuno, Takeshi Ishizaki
  • Publication number: 20110217191
    Abstract: Provided is an inverter-integrated electric compressor whose inverter section is molded using a urethane resin and which is excellent in joining reliability of electrically connected section. An inverter-integrated electric compressor, wherein the compressor incorporates a motor and wherein a motor drive circuit including the inverter is provided in a containing space surrounded by a compressor housing. A crimping section of a terminal of a conducting wire connected to the inverter is molded, together with the inverter, in a resin charged into the containing space. A gap at the crimping section, the gap being open to the outside, is previously covered and sealed by a gap sealant.
    Type: Application
    Filed: November 10, 2009
    Publication date: September 8, 2011
    Inventors: Eisuke Fujimra, Jun Mizuno, Makoto Shibuya, Atsushi Saito
  • Publication number: 20110217190
    Abstract: Disclosed is a low-cost, inverter-integrated electric compressor with which a high degree of design freedom is maintained, high vibration resistance can be achieved by reliable anchoring of the circuit components, the weight can be reduced easily, and which has excellent operational stability. An inverter-integrated electric compressor has a built-in motor and has a substrate provided with a motor drive circuit including an inverter. In the inverter-integrated electric compressor, after electric components including the substrate have been fixed in a housing space surrounded by a compressor housing and have been assembled, the housing space is filled with an insulating resin, and at least a part of the electric components are sealed by the solidified filling resin.
    Type: Application
    Filed: November 10, 2009
    Publication date: September 8, 2011
    Inventors: Jun Mizuno, Makoto Shibuya, Kazumi Ohsato, Toshimasa Shima, Eisuke Fujimura
  • Publication number: 20110195277
    Abstract: A high density magnetic recording medium including aggregates of magnetic nanoparticles arranged stably and efficiently in demarcated sections in the surface of a substrate is manufactured by the steps of forming a plurality of parallel tracks in the surface of the substrate, forming a plurality of minute recesses serially at approximately equal intervals in each of the tracks, casting a liquid dispersion of magnetic nanoparticles into the minute recesses, and evaporating dispersing medium from the liquid dispersion, thereby forming an aggregate of magnetic nanoparticles in each of the minute recesses.
    Type: Application
    Filed: December 14, 2010
    Publication date: August 11, 2011
    Applicants: WASEDA UNIVERSITY, SHOWA DENKO K.K.
    Inventors: Tetsuya Osaka, Atsushi Sugiyama, Takuma Hachisu, Shuichi Shoji, Jun Mizuno, Hiroshi Sakai
  • Patent number: 7895394
    Abstract: A processor of a storage controller receives an erasure process request relating to data stored in a storage unit, from a host computer, via a data I/O interface, detects a logical storage extent which is different to the logical storage extent allocated to the storage unit and which can be allocated, allocates the logical storage extent thus detected to the storage unit, sends a notification indicating that access to the storage unit is possible, to the host computer which is the source of the request, and then executes erasure of the data in the logical storage extent that is associated with the storage unit forming the erasure object, and sends a data erasure notification to the management computer when the data has been erased.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: February 22, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Noriko Nakajima, Yuichi Taguchi, Jun Mizuno
  • Patent number: 7849280
    Abstract: In a storage system including: plural information processing apparatuses each of which copies data sent from a host computer to create archive data in accordance with redundancy sent from the host computer; and a storage apparatus having physical disks that store the archive data, the storage apparatus includes a management unit that manages power state information that is information on whether or not the power state of each of the physical disks is “on,” and the information processing apparatuses each include an acquisition unit that acquires the power state information managed by the management unit and a determination unit that determines an information processing apparatus targeted for reading or writing the archive data from among the information processing apparatuses based on the power state information acquired by the acquisition unit.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: December 7, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Jun Mizuno, Hiroshi Nasu, Masayuki Yamamoto
  • Publication number: 20100277919
    Abstract: An LED module A1 includes LED chips 3R, 3G, 3B, and a module substrate 1 on which the LED chips 3R, 3G, 3B are mounted. A wire 4R is connected to the LED chip 3R, and the LED chips 3G and 3B are arranged to face each other across the wire 4R. With this arrangement, the LED module A1 is reduced in size, and red light, green light and blue light are properly mixed.
    Type: Application
    Filed: June 11, 2008
    Publication date: November 4, 2010
    Applicant: ROHM Co., Ltd.
    Inventors: Taisuke Okada, Jun Mizuno
  • Patent number: 7827382
    Abstract: Storage network arrangements effecting a method including: acquiring information on the real volumes, and port information on the physical devices in which the real volumes reside; creating virtual volumes being linked to the real volumes, based on the information on the real volumes; forming one or more virtual volume groups by combining the virtual volumes, based on the port information, in such a way that the virtual volumes and the virtual volume groups in which the virtual volumes reside have a virtual-volume-to-virtual-volume-group configuration which is identical to a real-volume-to-physical-device configuration of the real volumes and the physical devices in which the real volumes reside; and establishing the created virtual volume groups in the upper storage apparatus.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: November 2, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Jun Mizuno, Takeshi Ishizaki, Masayuki Yamamoto
  • Publication number: 20100148703
    Abstract: It is provided an LED lighting device calibratable to 0 to 100% of wide range about a chromaticity and luminance of a illumination light by a simple configuration, and a driving method for the LED lighting device. The LED lighting device is provided with a first light-emitting unit and a second light-emitting unit differing a color temperature mutually, and a control circuit for executing a cyclic light/quench control of the first light-emitting unit and the second light-emitting unit, and for executing a light control of the first light-emitting unit and the second light-emitting unit by a PNM (Pulse Number Modulation) control in a fixed cycle so as to have a lighting period Ton for lighting/quenching the first light-emitting unit and the second light-emitting unit complementarily, and a quenching period Toff for quenching both the first light-emitting unit and the second light-emitting unit.
    Type: Application
    Filed: March 7, 2008
    Publication date: June 17, 2010
    Applicant: ROHM CO., LTD.
    Inventor: Jun Mizuno
  • Patent number: 7730259
    Abstract: Provided is a storage subsystem configuration management method for use in a computer system, comprising: obtaining storage configuration information and hardware resource use information; determining, based on the obtained hardware resource use information, a configuration of a storage subsystem so that a load is not concentrated on a specific hardware resource; transmitting a configuration change instruction to make a change to the determined configuration to the storage subsystem; and making a configuration change based on the configuration change instruction received from the management computer through the first interface.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: June 1, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Yuichi Taguchi, Jun Mizuno, Masayuki Yamamoto, Toshihiko Shinozaki
  • Publication number: 20100106908
    Abstract: Disclosed is a system and method for preventing deterioration in I/O performance of a computer resulted from a use of the same physical disk among different logical volumes. A volume management server 1010 groups together logical volumes which use the same physical disk of a storage device 1020 as a volume group and allocates a storage area on the physical disk to be used on a priority basis by this volume group to the volume group, and thereby a physical arrangement according to a present physical arrangement of the logical volume can be performed when an automatic expansion of the logical volume is performed thereafter so that the I/O performance deterioration of the computer caused by a mutual interference is avoided at the time of access from the computer 1030 to the storage device 1020.
    Type: Application
    Filed: January 4, 2010
    Publication date: April 29, 2010
    Inventors: Jun MIZUNO, Takeshi ISHIZAKI
  • Patent number: 7698503
    Abstract: A computer system including: at least one host computer, a storage system for storing data used in the host computer, and a managing computer for managing storing the data in the storage system which are connected to each other with a network. The managing computer monitors the journal volume which is a storing destinations of the journal, in a case that the journal is stored in the journal volume in parallel, when it is detected that the storing destination of the journal changes from one of the groups into which the journal is just stored to another group, transmits an instruction to the storage system to change the storing destination of the journal to another group.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: April 13, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Wataru Okada, Masahide Sato, Jun Mizuno
  • Publication number: 20100070731
    Abstract: A storage system includes physical memory devices, pool volumes, including real areas, an allocation-on-use (AOU) volume including virtual areas, and a controller allocating a non-allocated real area in a pool including the pool volumes to a virtual area corresponding to an address specified by a writing command when no real area is allocated to the virtual area, and writing data corresponding to the received writing command to the allocated real area. The controller moves data stored in all the real areas in a first pool volume allocated to the AOU volume to a second pool volume, and changes a power consuming status of the physical memory device constituting the first pool volume to a power saving mode after the data has been moved.
    Type: Application
    Filed: November 14, 2008
    Publication date: March 18, 2010
    Inventors: Jun Mizuno, Yuichi Taguchi, Masayasu Asano, Masayuki Yamamoto
  • Publication number: 20100049916
    Abstract: A storage subsystem includes: a controller; a first logical storage area corresponding to a RAID group configured by a plurality of storage devices; and a second logical storage area corresponding to a plurality of the RAID groups each configured by the plurality of storage devices, and storing a copy of data stored in the first logical storage area. In the storage subsystem, the first and second logical storage areas form a copy group, and for starting copying from the first to second logical storage area, the controller performs a mode change, from a power saving mode to a ready mode, to the plurality of storage devices configuring the plurality of RAID groups corresponding to the second logical storage area. With such a storage subsystem, the time can be reduced for activating copy-destination storage devices to which a power saving function is applied, and the copy time is thus favorably reduced.
    Type: Application
    Filed: October 8, 2008
    Publication date: February 25, 2010
    Inventors: Noriko NAKAJIMA, Yuichi TAGUCHI, Jun Mizuno
  • Patent number: 7669031
    Abstract: Disclosed is to prevent deterioration in I/O performance of a computer resulted from a use of the same physical disk among different logical volumes. A volume management server 1010 groups together logical volumes which use the same physical disk of a storage device 1020 as a volume group and allocates a storage area on the physical disk to be used on a priority basis by this volume group to the volume group, and thereby a physical arrangement according to a present physical arrangement of the logical volume can be performed when an automatic expansion of the logical volume is performed thereafter so that the I/O performance deterioration of the computer caused by a mutual interference is avoided at the time of access from the computer 1030 to the storage device 1020.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: February 23, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Jun Mizuno, Takeshi Ishizaki
  • Publication number: 20100021374
    Abstract: Provided is a process for producing a high-purity ?-alumina in which an Si content, an Fe content, a Ca content, and an Na content are simultaneously removed. The high-purity ?-alumina is produced by burning aluminum hydroxide having an Na content of 0.11 mass % or less, an Fe content of 6 ppm or less, a Ca content of 1.5 ppm or less, and an Si content of 10 ppm or less as impurities in terms of alumina respectively, and having an average particle diameter of 55 ?m or less at a burning temperature of 1,100 to 1,500° C. by using a burning vessel containing Al2O3 in a range of 85 to 93 wt % and SiO2 in a range of 7 to l4 wt % and subjecting the obtained ?-alumina to wash treatment.
    Type: Application
    Filed: December 4, 2007
    Publication date: January 28, 2010
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Jun Mizuno, Toshihiro Matsuba, Shigeo Yamamoto, Takashi Yamada
  • Publication number: 20090310201
    Abstract: An electrostatic actuator as provided having a movable part, a supporter, a first connector, a second connector, first and second connector electrodes, and first and second supporter electrodes. The first and second connector electrodes project respectively from the first and second connectors towards the supporter, and are provided so as to be asymmetrical with respect to a line or a surface passing through the center of mass of the movable part, and which are perpendicular to the first axis. The first and second supporter electrodes project respectively from the supporter towards the first and second connectors, and that are provided so as to be asymmetrical with respect to a line and a surface which pass through the center of mass of the movable part and which are perpendicular to the first axis.
    Type: Application
    Filed: June 15, 2009
    Publication date: December 17, 2009
    Applicant: HOYA CORPORATION
    Inventors: Jun MIZUNO, Naoki KIKUCHI