33 US patents granted on 16 June 2009 and assigned to Hitachi
| 1 | 7,549,171 | Method and apparatus for validation of application data on a storage system |
| 2 | 7,549,086 | Memory card and its initial setting method |
| 3 | 7,549,084 | Storage control apparatus and failure recovery method for storage control apparatus |
| 4 | 7,549,083 | Data restoring method and an apparatus using journal data and an identification information |
| 5 | 7,549,076 | Fail over method through disk take over and computer system having fail over function |
| 6 | 7,549,019 | Storage control system |
| 7 | 7,549,016 | Storage control apparatus for selecting storage media based on a user-specified performance requirement |
| 8 | 7,548,996 | Data streamer |
| 9 | 7,548,959 | Method for accessing distributed file system |
| 10 | 7,548,924 | Managing method for storage subsystem |
| 11 | 7,548,793 | On-line process specification adjusting and component disposing based on predictive model of component performance |
| 12 | 7,548,694 | Apparatus of adjusting optical signal transmission timing |
| 13 | 7,548,502 | Power backup method for disk storage device |
| 14 | 7,548,439 | Electric power converter for reducing generated high frequency components |
| 15 | 7,548,411 | Electronic circuit structure, power supply apparatus, power supply system, and electronic apparatus |
| 16 | 7,548,406 | Method for utilizing a bulk erase tool to erase perpendicularly recorded media |
| 17 | 7,548,323 | Displacement and flatness measurements by use of a laser with diffractive optic beam shaping and a multiple point sensor array using the back reflection of an illuminating laser beam |
| 18 | 7,548,276 | Frame rate conversion device, image display apparatus, and method of converting frame rate |
| 19 | 7,548,109 | Voltage converter and display device comprising a voltage converter |
| 20 | 7,548,034 | Centrifuge |
| 21 | 7,548,024 | Plasma display panel and method for manufacturing the same |
| 22 | 7,547,987 | EMI reduced power inverter |
| 23 | 7,547,971 | Semiconductor integrated circuit device |
| 24 | 7,547,966 | Power semiconductor module |
| 25 | 7,547,884 | Pattern defect inspection method and apparatus thereof |
| 26 | 7,547,414 | Automatic analyzer |
| 27 | 7,547,365 | Process for producing, through strip casting, raw alloy for nanocomposite type permanent magnet |
| 28 | 7,547,188 | Ni-based alloy member, method of producing the alloy member, turbine engine part, welding material, and method of producing the welding material |
| 29 | 7,547,187 | Axial turbine |
| 30 | 7,547,175 | Transfer device for substrate and storing device and hand therein, and substrate handled by the device |
| 31 | 7,546,832 | Control device of high-pressure fuel pump of internal combustion engine |
| 32 | 7,546,741 | Ignition detecting system and method for gas turbine |
| 33 | 7,546,678 | Electronic component mounting apparatus |
