Patents Assigned to Hitachi Computer Peripherals Co., Ltd.
  • Patent number: 8145602
    Abstract: An LU management table 61 that associates and stores the LU# of the P-Vol 10p and the LU# of the S-Vol 10s is provided. The CPU 53 specifies the LU# of the S-Vol 10s constituting the save source of the data with respect to the magnetic tape cartridge 74, acquires the LU# of the P-Vol 10p associated with the specified LU# from the LU management table 61, reads the saved data from the magnetic tape cartridge 74 storing the data by means of the magnetic tape drive 71, and stores the data read from the magnetic tape cartridge 74 to the P-Vol 10p with the acquired LU#. As a result, the data can be restored easily and properly to the P-Vol 10p.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: March 27, 2012
    Assignees: Hitachi, Ltd., Hitachi Computer Peripherals Co., Ltd.
    Inventor: Kazuhiro Usami
  • Patent number: 8130515
    Abstract: A bi-directional DC-DC converter has a transformer for connecting a voltage type full bridge circuit connected to a first power source and a current type switching circuit connected to a second power source. A voltage clamping circuit constructed by switching elements and a clamping capacitor is connected to the current type switching circuit. The converter has a control circuit for cooperatively making switching elements operative so as to control a current flowing in a resonance reactor.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: March 6, 2012
    Assignee: Hitachi Computer Peripherals Co., Ltd.
    Inventors: Takae Shimada, Yoshihide Takahashi, Kimiaki Taniguchi, Hiroyuki Shoji
  • Patent number: 8118758
    Abstract: A living body inspection apparatus includes: a first detecting unit detecting a displacement of two positions in a lateral direction of a subject's larynx; a second detecting unit detecting a swallowing sound of the subject; a displaying unit displaying a waveform regarding the displacement of the two positions formed using information from the first detecting unit and a waveform regarding the swallowing sound formed using information from the second detecting unit; a processor instructing the displaying unit; and a flexible holding member including a pair of sensor holding members having flexibility and provided with the first and second detecting units at one ends, and a mounting member integrally formed with the pair of sensor holding members at other ends to hold the sensor holding members, the other ends being made open so that the mounting member is mounted on and held by the subject's larynx.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: February 21, 2012
    Assignee: Hitachi Computer Peripherals Co., Ltd.
    Inventors: Akihiko Kandori, Tsuyoshi Miyashita, Mitsuru Onuma, Yuko Sano, Ryuzo Kawabata
  • Patent number: 8108597
    Abstract: A second storage system (SS2) comprises a plurality of tapes, a first storage device capable of performing random access at a rate higher than the tapes, and a virtual storage device emulating the first storage device. A first storage system (SS1) comprises a second storage device and a third storage device that has the virtual storage device mapped therewith. The SS2 reserves a storage space on the first storage device and reads data from the tape corresponding to the virtual storage device into the storage space. The SS1 performs copying between the second storage device and third storage device and, in this process, sends a command for access generated in the third storage device to the virtual storage device. When receiving the Access Command corresponding to the virtual storage device, the SS2 accesses the storage space.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: January 31, 2012
    Assignees: Hitachi, Ltd., Hitachi Computer Peripherals Co., Ltd.
    Inventors: Takashi Amano, Yoichi Mizuno
  • Publication number: 20110320707
    Abstract: The performance to transfer data to external storage media in thin provisioning is enhanced. A storage apparatus is connected via a network to a host system writing of data and to a tape management apparatus for managing tape storage media for storing the data.
    Type: Application
    Filed: June 24, 2010
    Publication date: December 29, 2011
    Applicants: HITACHI COMPUTER PERIPHERALS CO., LTD., HITACHI, LTD.
    Inventor: Kazuhiro Usami
  • Patent number: 8065271
    Abstract: To realize backup that gives no influence on on-line performance at low cost, provided is a storage system including one or more disk storage devices, a tape storage device, and a controller for controlling the at least one disk storage device and the tape storage device. The controller stores a copy of data stored in a first volume in a third volume, reads the copy of the data stored in the first volume from the third volume to store the copy in a first tape storage medium of the tape storage device, stores a copy of data stored in a second volume in the third volume, and reads the copy of the data stored in the second volume from the third volume to store the copy in a second tape storage medium of the tape storage device.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: November 22, 2011
    Assignees: Hitachi, Ltd., Hitachi Computer Peripherals Co., Ltd.
    Inventor: Yoichi Mizuno
  • Publication number: 20110267042
    Abstract: It is an object of the present invention to provide a motor function analyzing apparatus which simplifies a calibration measurement necessary before measuring a finger tapping motion, and which is capable of evaluating a motor function highly precisely. The present invention provides a motor function analyzing apparatus which simplifies a calibration measurement necessary before measuring a finger tapping motion, and which is capable of evaluating a motor function highly precisely by using a calibration point unique to each apparatus and a calibration point unique to each subject.
    Type: Application
    Filed: April 27, 2011
    Publication date: November 3, 2011
    Applicant: HITACHI COMPUTER PERIPHERALS CO., LTD.
    Inventors: Yuko SANO, Akihiko KANDORI, Tsuyoshi MIYASHITA, Katsuya MOROHOSHI, Kouichi ISHIZUKA
  • Patent number: 8037265
    Abstract: Storage system and data management method to reduce the load on a virtualization apparatus by executing backup processing or restoration processing within one apparatus in which an externally connected storage apparatus and a tape library apparatus are installed. The storage system includes a virtualization apparatus and an external storage apparatus; the virtualization apparatus having: an actual volume for storing data sent from a host apparatus, formed in a storage area provided by a physical disk; and a virtual volume paired with the actual volume, for storing replicated data for the data, and the external storage apparatus having: a logical volume that functions as an actual storage area for the virtual volume; and a tape associated with the logical volume, for storing the replicated data, wherein the external storage apparatus has a copy unit for copying the replicated data stored in the logical volume to the tape.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: October 11, 2011
    Assignees: Hitachi, Ltd., Hitachi Computer Peripherals Co., Ltd.
    Inventor: Kazuhiro Usami
  • Patent number: 8037268
    Abstract: Aiming to suitably balance, when backing up data to a magnetic tape, search time and writing/reading performance depending on the purpose of the backup, provided is a disk array apparatus including a disk device having hard disks, a magnetic tape device including a magnetic tape to which data to be backed up is written, and a control unit performing writing and reading processings of data between the disk device and the magnetic tape device. The control unit includes an FM (file mark) interval managing unit which receives a purpose of use when backing up the data on the magnetic tape, and from FM intervals which is held in association with the purpose of use thus received and which indicates an interval of recording FMs on the magnetic tape, acquires an FM interval corresponding to the purpose of use thus received, and transmits the acquired FM interval to the control unit.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: October 11, 2011
    Assignees: Hitachi, Ltd., Hitachi Computer Peripherals Co., Ltd.
    Inventors: Hirokazu Aikawa, Kazuhiro Usami, Hirokazu Ishii
  • Patent number: 8037273
    Abstract: A method for allocating optimum pages to a logical volume according to the usage of the logical volume and an access characteristic is provided. A storage system is connected to a host computer, includes plural disk drives and a controller to control the plural disk drives, includes a first disk drive group including at least one disk drive, holds information indicating that a first attribute is assigned to a logical volume, assigns the first attribute when a first logical volume including plural first logical storage areas is provided to the host computer, reserves plural physical storage areas of the first disk drive group as the plural first logical storage areas, reserves the plural first logical storage areas included in the first logical volume as storage areas for storing data requested by the host computer, and stores the data requested by the host computer into the allocated physical storage areas.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: October 11, 2011
    Assignees: Hitachi, Ltd., Hitachi Computer Peripherals Co., Ltd.
    Inventors: Yoichi Mizuno, Tomonori Murayama
  • Patent number: 8032712
    Abstract: There is provided a storage system accessed by a host computer, comprising: an interface coupled to the host computer; a processor coupled the interface; a memory coupled to the processor; and a storage device for storing the data. The storage device comprises a first storage device in which the stored data is accessed sequentially from a beginning, and a second storage device in which the stored data can be accessed at random. The data stored in the first storage device is replicated to the second storage device, and the replicated data is accessed by the host computer. The processor receives a candidate of the data including a priority of the data from the host computer, and replicates the data included in the candidate of the data, and stored in the first storage device to the second storage device in accordance with the priority before reception of an access request.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: October 4, 2011
    Assignees: Hitachi, Ltd., Hitachi Computer Peripherals Co., Ltd.
    Inventors: Tomonori Murayama, Yoichi Mizuno
  • Publication number: 20110230789
    Abstract: This invention provides a sensor or its related art to be easily used for measuring motor function of living body. This invention relates to a sensor for measuring motor function, which includes a magnetic field generator attached to one of two predetermined positions in a living body changing mutual distance caused by an action of the living body to have a coil board generating a magnetic field by electrification, and a magnetic field detector attached to the other of the two predetermined positions in the living body to detect the magnetic field generated by the magnetic field generator and have the coil board generating an electric current having a magnitude corresponding to a strength of the magnetic field as detected. Furthermore, each of the magnetic field generator and the magnetic field detector is provided with plastics covering a whole coil board thereof.
    Type: Application
    Filed: January 13, 2011
    Publication date: September 22, 2011
    Applicant: HITACHI COMPUTER PERIPHERALS CO., LTD.
    Inventors: Toshihiro AITA, Akitoshi DOI, Atsushi NINOMIYA, Mitsuru ONUMA, Akihiko KANDORI, Yuko SANO, Norihiko ADACHI
  • Publication number: 20110227546
    Abstract: To eliminate the problem that a magnetic deflection is caused in a transformer even when a coupled inductor converter is in a stationary operation state, provided is a DC-DC converter including a first series circuit portion formed by a first switching transistor, a first capacitor, a first inductor, and a second capacitor which are connected to a DC power in series in this order, and a second series circuit portion formed by a second switching transistor and a second inductor which are connected in series in this order, the second series circuit portion is connected in parallel to the first capacitor and the first inductor, and the first inductor and the second inductor constitute a coupled inductor having a plurality of windings and a common magnetic core.
    Type: Application
    Filed: October 28, 2009
    Publication date: September 22, 2011
    Applicants: OITA University, Hitachi Computer Peripherals Co., Ltd.
    Inventors: Kimihiro Nishijima, Kosuke Abe
  • Patent number: 7987328
    Abstract: In a virtual disk library device access of data stored in a tape can be conducted at a high speed with a high-speed archiving process from a disk to the tape in units of LUs maintained. The efficiency of update of the data stored in the tape can be improved. In this system, when the data stored in the tape is to be accessed with a high-speed archiving process in units of LUs from the disk to the tape maintained, a disk staging process is performed in the unit of a page that is smaller than the unit of an LU, and accordingly, high-speed access can be implemented. In addition, when an update process for the data (LU) stored in the tape is performed, the host can be responded by only staging an update target page of the LU, and a prior disk staging process is performed for the remaining pages of the LU in the background. Accordingly, when the data is re-stored in the tape, immediately storing the data in the tape can be performed without performing a staging process.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: July 26, 2011
    Assignees: Hitachi, Ltd., Hitachi Computer Peripherals Co., Ltd.
    Inventors: Tomonori Murayama, Yoichi Mizuno
  • Patent number: 7972285
    Abstract: A motion sensor for measuring motion information of a subject comprises a coil substrate having transmitting or receiving coils piled one on top of another and a holder in which the coil substrate is mounted. Formed on the holder are curved surfaces to which an adhesive sheet is stuck and at which the holder is attached to a nail of a subject via the adhesive sheet. Further, there is provided a casing where first and second containing space are formed to contain measurement instruments including an adhesive member where a plurality of the adhesive sheets are laid one on top of another, the motion sensor, and the like.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: July 5, 2011
    Assignee: Hitachi Computer Peripherals Co., Ltd.
    Inventors: Tsuyoshi Miyashita, Akihiko Kandori, Mitsuru Onuma, Norihiko Matsumoto, Kouichi Ishizuka, Norihiko Adachi, Atsushi Ninomiya, Yoshimi Kasai
  • Publication number: 20110140007
    Abstract: To project a rectangular laser spot having a predetermined size and a high laser power density onto the surface of an object, a semiconductor manufacturing apparatus comprises a control unit for controlling power of a laser light source, an optical waveguide unit (1) including a core section (10) transmitting laser light and a clad section (11) covering the core section (10), and a lens (3) for forming the laser light output through the optical waveguide unit (1) into a laser spot having a predetermined shape, an output end surface (15) of the core section (10) has a rectangular shape with one side length of 1 ?m to 20 ?m and the other side length of 1 mm to 60 mm, and the laser source is set to make the power density of the laser spot output from the core section (10) to be 0.1 mW/?m2 or more.
    Type: Application
    Filed: September 29, 2008
    Publication date: June 16, 2011
    Applicant: HITACHI COMPUTER PERIPHERALS CO., LTD.
    Inventors: Yoshiaki Ogino, Katsumi Kimura, Yasuhiro Iida, Kazuhiro Soga
  • Publication number: 20110145528
    Abstract: Proposed are a storage apparatus and its control method capable of restoring data of a virtual page to an appropriate device hierarchy according to its data value. This storage apparatus stores, in a backup-destination storage medium, data stored in the respective physical pages allocated with the virtual volume and management information of the virtual volume including information concerning the device hierarchy to which the respective physical pages belong according to a backup command of the virtual volume, and allocates a physical page of the same device hierarchy as the device hierarchy of the physical page that was allocated before the backup to each of the restoration-target virtual pages of the virtual volume, respectively, and writes corresponding data, which was read from the storage medium, into each of the allocated physical pages according to a restoration command of the virtual volume and based on the management information of the virtual volume stored in the storage medium.
    Type: Application
    Filed: October 13, 2009
    Publication date: June 16, 2011
    Applicants: HITACHI, LTD., HITACHI COMPUTER PERIPHERALS CO., LTD.
    Inventors: Yasuo Watanabe, Yoshinori Ohira, Kenta Shiga
  • Patent number: 7958326
    Abstract: The correspondence between a plurality of virtual storage positions in a virtual volume for logically holding a snapshot image of a main volume in which data elements transmitted from a higher-level device are written and a plurality of address information elements indicating a plurality of actual storage positions of a plurality of data elements constituting the snapshot image is managed. In the initial backup, all the data elements stored in all the actual storage positions indicated by a plurality of address information elements are backed up, then storage positions where a difference has occurred between the virtual volume and the backup destination storage device is managed, and in the next and subsequent backups, data elements on the storage positions specified from the address information elements corresponding to the differentially managed storage positions are backed up.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: June 7, 2011
    Assignees: Hitachi, Ltd., Hitachi Computer Peripherals Co., Ltd.
    Inventors: Takashi Amano, Yoichi Mizuno
  • Publication number: 20110096576
    Abstract: Proposed are a power factor correction device and its control method capable of obtaining a stable output as the output of a power supply unit while simplifying and miniaturizing the configuration. In the power factor correction device and the control method thereof including a coil and a switching element, and a control unit for controlling ON/OFF of the switching element, provided are an input voltage detection unit for detecting an input voltage of the power factor correction device, an output voltage detection unit for detecting an output voltage, and a coil current detection unit for detecting a coil current that is generated in the coil pursuant to the ON/OFF operation of the switching element.
    Type: Application
    Filed: October 22, 2010
    Publication date: April 28, 2011
    Applicant: HITACHI COMPUTER PERIPHERALS CO., LTD.
    Inventors: Fumikazu TAKAHASHI, Masahiro HAMAOGI, Yen-Shin LAI
  • Patent number: 7923980
    Abstract: In a digital controlled power supply including a digital controller for generating a PWM signal which is used to turn on and off a switching element to obtain an output voltage for a load based on an input voltage, the digital controller includes an AD converter for receiving an analog output current from the power supply and converting the current into a digital value to produce a digital output current value, an arithmetic processing unit for conducting an arithmetic operation of a pulse width for each period of a sampling frequency of the AD converter or a frequency of carrier wave as a criterion to obtain the PWM signal, and a frequency controller for variably controlling the frequency of carrier wave and the sampling frequency on the basis of the digital output current value from the AD converter.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: April 12, 2011
    Assignee: Hitachi Computer Peripherals Co., Ltd.
    Inventors: Fumikazu Takahashi, Masahiro Hamaogi