Hitachi patents granted on 23 December 2008

29 US patents granted on 23 December 2008 and assigned to Hitachi

1 7,469,358 External storage and data recovery method for external storage as well as program
2 7,469,351 Multiple computer equipment and management method for determining number of AC-DC power modules to be operated by calculating power consumption based upon system information
3 7,469,330 Storage system having a first computer, a second computer connected to the first computer via a network, and a storage device system that is accessed by the second computer
4 7,469,327 System and method for restricting access to logical volumes
5 7,469,315 Storage controller, and method of controlling storage controller to improve the reliability of the storage controller
6 7,469,307 Storage system with DMA controller which controls multiplex communication protocol
7 7,469,289 Storage system having virtualized resource
8 7,469,281 Network topology management system, management apparatus, management method, management program, and storage media that records management program
9 7,469,260 File storage service system, file management device, file management method, ID denotative NAS server and file reading method
10 7,469,156 Portable information terminal
11 7,468,870 Magnetoresistive head, with second magnetic domain control layers and manufacturing method thereof
12 7,468,868 Rotary disk storage device
13 7,468,861 Magnetic disk apparatus with shield for magnetic head
14 7,468,853 Storage apparatus and control method therefor
15 7,468,852 Method of demagnetizing magnetic recording medium and apparatus for carrying out same
16 7,468,787 Finger identification apparatus
17 7,468,774 Liquid crystal display mounted with IC tag and method for manufacturing the same
18 7,468,725 Method and apparatus for describing solid shapes, and CAD/CAM system which employs the method
19 7,468,715 Image display device
20 7,468,554 Heat sink board and manufacturing method thereof
21 7,468,542 Magnetoresistive device and nonvolatile magnetic memory equipped with the same
22 7,468,294 Semiconductor device and a method of manufacturing the same
23 7,467,872 Projection optical unit and projection type video display device using the unit
24 7,467,739 Combustion-powered, fastener-driving tool generating sparks in succession when triggered
25 7,467,546 Equipment for measuring gas flow rate
26 7,467,464 Method of manufacturing a memory card
27 7,467,461 Additive gap process to define trailing and side shield gap for a perpendicular write head
28 7,467,459 Method for manufacturing a current in plane magnetoresistive sensor having a contiguous hard bias layer located at back edge of stripe height
29 7,467,458 Method for use in making a read head