49 US patents granted on 30 January 2007 and assigned to Hitachi
| 1 | 7,171,687 | Contents distribution apparatus |
| 2 | 7,171,532 | Method and system for data lifecycle management in an external storage linkage environment |
| 3 | 7,171,524 | Storage control system and control method for storage control which suppress the amount of power consumed by the storage control system |
| 4 | 7,171,523 | Information processing system for updating data in a shared network storage system |
| 5 | 7,171,522 | Storage system including storage adaptors having cache memories and grasping usage situation of each cache memory and equalizing usage of cache memories |
| 6 | 7,171,517 | Storage apparatus |
| 7 | 7,171,511 | WORM proving storage system |
| 8 | 7,171,453 | Virtual private volume method and system |
| 9 | 7,171,431 | File system updating metadata of files according to results of keyword search |
| 10 | 7,171,423 | Information processing system and system setting method |
| 11 | 7,171,317 | Load information display device and circuit breaker |
| 12 | 7,171,295 | Construction device information processing system and construction device information processing method |
| 13 | 7,171,250 | Living body light measurement system and signal processing method |
| 14 | 7,171,234 | High-frequency switch circuit |
| 15 | 7,171,188 | Communication system for working machines |
| 16 | 7,171,087 | Optical fiber cable |
| 17 | 7,170,929 | Digital signal transmission system and method of displaying transmission condition in digital signal transmission system |
| 18 | 7,170,885 | Packet switching method and apparatus thereof |
| 19 | 7,170,840 | Information recording method |
| 20 | 7,170,838 | Information recording and reproducing apparatus |
| 21 | 7,170,792 | Semiconductor device |
| 22 | 7,170,722 | Extraordinary magnetoresistance sensor with perpendicular magnetic biasing by a ferromagnetic multilayer |
| 23 | 7,170,715 | Microsuspension assemblies for direct access storage devices |
| 24 | 7,170,713 | Heat sink for a magnetic recording head |
| 25 | 7,170,709 | Recording/reproducing method of magnetic tape |
| 26 | 7,170,705 | Recording device and controller and control method for a recording device |
| 27 | 7,170,593 | Method of reviewing detected defects |
| 28 | 7,170,567 | Projection type image display apparatus |
| 29 | 7,170,484 | Display device |
| 30 | 7,170,471 | Plasma display apparatus and method of driving a plasma display panel |
| 31 | 7,170,345 | Predistorter |
| 32 | 7,170,289 | Magnetic resonance imaging method and apparatus |
| 33 | 7,170,273 | Power-supply device and hard disk drive using same |
| 34 | 7,170,012 | Multilayer circuit board, process of manufacturing same, board for multilayer circuitry, and electronic apparatus |
| 35 | 7,169,362 | Microplate liquid handling system |
| 36 | 7,169,357 | Automatic chemical analyzer |
| 37 | 7,169,334 | Optical information recording medium |
| 38 | 7,169,255 | Plasma processing apparatus |
| 39 | 7,169,254 | Plasma processing system and apparatus and a sample processing method |
| 40 | 7,169,241 | Ni-based superalloy having high oxidation resistance and gas turbine part |
| 41 | 7,169,216 | Electroless copper plating solution, electroless copper plating process and production process of circuit board |
| 42 | 7,168,939 | System, method, and apparatus for multilevel UV molding lithography for air bearing surface patterning |
| 43 | 7,168,809 | Stereoscopic display apparatus |
| 44 | 7,168,638 | Fuel injection valve |
| 45 | 7,168,624 | Semiconductor device and IC card |
| 46 | 7,168,374 | Solid fuel burner, burning method using the same, combustion apparatus and method of operating the combustion apparatus |
| 47 | 7,168,312 | Heating resistor type air flow meter |
| 48 | 7,168,155 | Method of manufacturing an integrated thin film head |
| 49 | 7,168,154 | Method of constructing an integrated lead suspension |
