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Assignee: Hitachi, Ltd.


Location: Tokyo, JP
No. of applications: 2239

1                      
Application No.Application TitleIssue Date
20120131379COMPUTER SYSTEM AND AVAILABILITY METHOD THEREOF
High availability computer system and fault correction method. If a fault occurs in the current-system physical device allocated to the current-system virtual device of the virtual server, the virtualization mechanism of the physical server configures, for the standby-s...
05/24/2012
20120131302CONTROL METHOD OF VIRTUAL VOLUMES AND STORAGE APPARATUS
Multiple types of storage devices which have different performance are appropriately allocated to multiple virtual volumes in accordance with the performance requirements of the respective virtual volumes. In cases where, among virtual volumes 82 for which respon...
05/24/2012
20120131297METHOD AND APPARATUS FOR SEAMLESS MANAGEMENT FOR DISASTER RECOVERY
A method, apparatus, article of manufacture, and system are presented for establishing redundant computer resources. According to one embodiment, in a system including a plurality of processor devices and a plurality of storage devices, the processor devices, the storag...
05/24/2012
20120131296Volume Management for Network-Type Storage Devices
An administrator's work load increases because the administrator has to both allocate volumes of PC server device applications and take over volumes for applications based on changes in PC server devices. A volume management system solves the problem with a computer sys...
05/24/2012
20120131289MULTIPATH SWITCHING OVER MULTIPLE STORAGE SYSTEMS
A system comprises a first storage system, a second storage system, a plurality of switches, and a server connected with the first storage system via a first group of switches and connected with the second storage system via a second group of switches. The first group a...
05/24/2012
20120131276INFORMATION APPARATUS AND METHOD FOR CONTROLLING THE SAME
An object is to efficiently set configurations of a storage apparatus. Provided is an information apparatus communicably coupled to a storage apparatus 10, which validates a script executed by the storage apparatus 10 for setting a configuration of the storage apparatus...
05/24/2012
20120131272Data Processing System and Storage Subsystem Provided in Data Processing System
A first storage subsystem includes a first storage device and a second storage device(s). A second storage subsystem includes a third storage device and a fourth storage device. A third storage subsystem comprises a fifth storage device and a sixth storage device. The f...
05/24/2012
20120131271STORAGE DEVICE AND METHOD OF CONTROLLING STORAGE SYSTEM
With respect to a storage system in which quick formatting and sequential formatting can be run concurrently, the time it takes to process an access request from a host is prevented from becoming prolonged even when a normal sequential formatting process is executed wit...
05/24/2012
20120127877PACKET TRANSFER DEVICE AND PACKET TRANSFER METHOD
Packet transfer device and method have both a processing procedure for uninterruptible-switching desiring packets and a processing procedure for low-delay desiring packets, and process each user packet according to a desired one of the processing procedures. The uninter...
05/24/2012
20120127548MONOCULAR HOLOGRAPHIC DATA STORAGE SYSTEM ARCHITECTURE
A monocular holographic storage device or system to provide for compact recording and/or reading of data pages in a holographic storage medium. Also provided are methods for carrying out such data storage and/or data recovery using a monocular holographic storage device...
05/24/2012
20120127438PROJECTION TYPE IMAGE DISPLAY APPARATUS
According to the present invention, a projection type image display apparatus enables control of a large amount of light masking through a light-masking unit while maintaining a uniform illumination distribution in an area to be illuminated by the illumination light. Th...
05/24/2012
20120110290METHOD AND APPARATUS FOR INCREASING AN AMOUNT OF MEMORY ON DEMAND WHEN MONITORING REMOTE MIRRORING PERFORMANCE
A method and storage system for increasing an amount of memory in a queuing area on. The storage system includes first and second storage subsystems connected to each other via a path. A primary volume in the first storage subsystem and a remote secondary volume in the ...
05/03/2012
20120110289DATA BACKUP SYSTEM AND METHOD FOR VIRTUAL INFRASTRUCTURE
Systems for backing up the data of an IT system by utilizing server or storage virtualization technology to create and move logical IT infrastructures dynamically. A virtualized IT system provides a server resource pool and a storage resource pool composed from multiple...
05/03/2012
20120110069COMPUTING SYSTEM AND METHOD OF CHANGING I/O CONFIGURATION THEREOF
A computing system includes: first and second I/O interfaces that are associated with a server; and an I/O management unit that connects the server with the first and second I/O interfaces. The I/O management unit includes: an I/O buffer; an I/O mapping unit that stores...
05/03/2012
20120110058MANAGEMENT SYSTEM AND INFORMATION PROCESSING METHOD FOR COMPUTER SYSTEM
A determination of whether or not an application is accessible is made on the basis of an evaluation result collected from a client terminal, and the determination result is provided to the client terminal. A client requests usage of an application to a management serve...
05/03/2012
20120108963Semiconductor Device and Ultrasonic Diagnostic Apparatus Using the Same
The present invention provides a semiconductor device of a bi-directional analog switch having a high linearity and a low electric power loss. An ultrasonic diagnostic apparatus having a high degree of detection accuracy, comprising the semiconductor device, is also pro...
05/03/2012
20120106000HEAD POSITION CONTROL METHOD AND DISK DEVICE
A track locus drawn on a disk discretely contains repeatable runout (RRO) components which are large in amplitude up to high-frequency band. In order to position a magnetic head along the track locus using filters good at suppressing RRO with resonance characteristics o...
05/03/2012
20120103182Slide Parts and Equipment Including Same
It is an objective of the invention to provide a slide part in which a seal member formed of an elastic body is in sliding contact with a hard member. There is provided a slide part comprising: a hard member having an amorphous carbon coating containing nitrogen formed ...
05/03/2012
20120102955Thermal Power Plant
A thermal power plant is proposed for achieving high reliability, low material cost, and low construction cost by devising the arrangement and structures of a boiler, steam turbines, and a flue gas treatment apparatus to reduce a usage amount of high-temperature resista...
05/03/2012
20120084597COMPUTER SYSTEM AND DATA PROCESSING METHOD FOR COMPUTER SYSTEM
A plurality of computers to execute jobs, a management computer to manage the execution of jobs and the disposition of data in the computers and a storage device storing data are interconnected via a network. The management program for the management computer divides th...
04/05/2012
20120084351SERVICE COLLABORATION SYSTEM
A user interaction type service collaboration system, in which a user terminal calls Web service provisioning servers in sequence via a Web portal server and a service scenario execution server, and each Web service provisioning server carries out interaction processing...
04/05/2012
20120082915Polymer Electrolyte Membrane Fuel Cell
A polymer electrolyte membrane fuel cell of the present invention has a simple structure in a cooling part and is small. The polymer electrolyte membrane fuel cell includes a membrane electrode assembly, a porous gas flow field for anode which is conductive and supplies...
04/05/2012
20120082256TOMLINSON HARASHIMA PRECODING WITH ADDITIONAL RECEIVER PROCESSING IN A MULTI-USER MULTIPLE-INPUT MULTIPLE-OUTPUT WIRELESS TRANSMISSION SYSTEM
A method for processing user symbols with Tomlinson Harashima precoder (THP) in a base station, of a wireless system having K user terminals (UEs) which communicate with the base station via an uplink channel and corresponding downlink (DL) channel, comprises estimating...
04/05/2012
20120081077Rechargeable Battery System
A rechargeable battery system that controls charge/discharge of a lithium ion rechargeable battery, includes: an internal resistance detection unit that detects or estimates an internal resistance value indicating an internal resistance at the lithium ion rechargeable b...
04/05/2012
20120079828Gas Turbine Combustor
A gas turbine combustor comprising a fuel nozzle for injecting mixed gas of fuel and air, a cylindrical liner for burning and reacting the mixed gas of fuel and air in a combustion chamber, a transition piece which is a flow path for leading combustion gas generated in ...
04/05/2012
20120072693COMPUTER SYSTEM AND METHOD FOR MANAGING THE SAME
The present invention provides a technique capable of preventing data loss due to relocation of physical storage devices. When a request to relocate a logical storage area is issued, it is determined if the logical storage area to be relocated, which is composed of the ...
03/22/2012
20120072691Storage System and Control Method for the Same
An externally-connected volume of a main storage is correlated to an AOU volume inside of an external storage. The AOU volume is allocated with a not-yet-used page in a pool in accordance with data writing. When a command is issued to the externally-connected volume for...
03/22/2012
20120072685METHOD AND APPARATUS FOR BACKUP OF VIRTUAL MACHINE DATA
Embodiments of the invention provide backup of virtual machine data and preferably simplify the backup system, especially in the virtual machine environment that uses an external storage subsystem. A system includes a storage system coupled via a network to a server and...
03/22/2012
20120072663Storage control device and RAID group extension method
The present invention provides a storage system having a controller that can extend an old RAID group to a new RAID group without decreasing a processing speed. A conversion part reads the data from an unconverted area A1, converts it into the data based on a new...
03/22/2012
20120072623Storage control device and raid group extension method
The storage system includes a first storage subsystem having a first logical volume to be accessed by a host computer, and a second storage subsystem connected to the first storage subsystem and having a second logical volume to be mapped to the first logical volume. Th...
03/22/2012
20120072589Information Processing Apparatus and Method of Operating the Same
Using a service server list containing addresses of servers within a service system and an application list containing names of active applications within the service system, addresses of servers on which the active applications are running, and communication source add...
03/22/2012
20120072540 Method of Managing A File Access In A Distributed File Storage System
Embodiments of the invention provide methods and systems of managing a file access, in a distributed file system environment. In the provided methods and systems, each of the host computers is connected with one of the file servers as a target file server and issues the...
03/22/2012
20120072397METHOD FOR MANAGING INFORMATION PROCESSING SYSTEM AND DATA MANAGEMENT COMPUTER SYSTEM
An ACL, a setting table, and backup data are used to create an inter-base data sharing file system at a base permitted to share data. This enables data to be shared by bases. In a process for restoring backup data, with reference to the ACL and the setting table, a data...
03/22/2012
20120070267Axial Flow Compressor, Gas Turbine System Having the Axial Flow Compressor and Method of Modifying the Axial Flow Compressor
There is provided an axial flow compressor that improves reliability on an increase in a blade loading on a last-stage stator vane of the axial flow compressor due to a partial load operation of a gas turbine. An annular flow passage is formed by a rotor having multiple...
03/22/2012
20120069739Transport Control Server, Transport Control System, and Transport Control Method
There is a need to extract a traffic related to congestion in consideration of an entire network. Multiple traffics are received from multiple nodes. There is available information about bandwidths for the traffics passing through nodes. Bandwidths for the traffics at a...
03/22/2012
20120069467MAGNETIC RECORDING MEDIUM AND MAGNETIC DISK DRIVE USING THE SAME
The present invention provides a magnetic recording medium and a magnetic disk drive using the same, capable of keeping flying height and posture of the head slider constant when a discrete track medium (magnetic recording medium) includes tracks as data zones, and non-...
03/22/2012
20120069465SPIN TORQUE OSCILLATOR AND MAGNETIC RECORDING HEAD AND MAGNETIC RECORDING DEVICE MOUNTED WITH THE SPIN TORQUE OSCILLATOR
The present invention provides a spin torque oscillator that can realize stable oscillation and has high reliability. A laminated structure including a first magnetic layer 1 having a bcc crystal structure and having in-plane magnetic anisotropy and a second magn...
03/22/2012
20120069333Cells for Biochemical Analysis, Kit for Biochemical Analysis, and Biochemical Analyzer
The invention makes it possible to measure binding of a biochemical substance with a high throughput and with high sensitivity using a small cell capable of being filled with a small amount of chemical solution. A space between a first substrate and a second substrate s...
03/22/2012
20120069265DISPLAY APPARATUS AND BACK LIGHT UNIT TO BE USED THEREFOR
A back light unit includes a light source unit combined with an optical waveguide having translucency to guide a light of light source in a direction of liquid crystal panel, and a chassis for holding or supporting the light source unit. The optical waveguide is formed ...
03/22/2012
20120069202CAMERA MANAGEMENT DEVICE AND NETWORK CAMERA SYSTEM
The present invention is based upon a camera management device coupled to a network camera via a network and the camera management device is provided with an image receiving unit that receives image data projected by the network camera and including control information ...
03/22/2012
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