45 US patents granted on 23 June 2009 and assigned to Hitachi
| 1 | RE40,769 | Method and apparatus for controlling the gray scale of plasma display device |
| 2 | 7,552,455 | Objective lens with elastic support structure |
| 3 | 7,552,209 | Computer system managing an access to a storage system |
| 4 | 7,552,138 | Method and apparatus for managing faults in storage system having job management function |
| 5 | 7,552,062 | Method and system for clinical process analysis |
| 6 | 7,551,976 | Industrial device receiving remote maintenance operation and outputting charge information |
| 7 | 7,551,836 | Broadcast program recording method, broadcast receiver, and information recorder therefor |
| 8 | 7,551,710 | X-ray CT apparatus and X-ray CT imaging method |
| 9 | 7,551,535 | Reproducing apparatus utilizing recording medium identifier |
| 10 | 7,551,462 | Soft switching DC-DC converter including a buck converter and a boost converter sharing a common transformer |
| 11 | 7,551,436 | Electronic apparatus |
| 12 | 7,551,409 | Current-perpendicular-to-the-plane (CPP) magnetoresistive sensor with improved ferromagnetic free layer structure |
| 13 | 7,551,402 | Magnetic disk drive and ramp |
| 14 | 7,551,398 | Magnetic head with air bearing surface protection film and manufacturing method thereof |
| 15 | 7,551,397 | Magnetic write head having a first magnetic pole with a self aligned stepped notch |
| 16 | 7,551,396 | Perpendicular magnetic write head having a studded trailing shield compatible with read/write offset |
| 17 | 7,551,395 | Main pole structure coupled with trailing gap for perpendicular recording |
| 18 | 7,551,389 | Disk drive and method of retracting head thereof |
| 19 | 7,551,379 | Write element before read element with early servo termination on write |
| 20 | 7,551,352 | Image display apparatus, as well as, Fresnel lens sheet and screen to be used therein |
| 21 | 7,551,260 | Liquid crystal display device |
| 22 | 7,551,209 | Imaging apparatus and method for controlling white balance |
| 23 | 7,551,169 | Liquid crystal display device |
| 24 | 7,551,157 | Display device and driving method thereof |
| 25 | 7,551,067 | Obstacle detection system |
| 26 | 7,550,918 | Display device |
| 27 | 7,550,772 | Image display device and manufacturing method thereof |
| 28 | 7,550,750 | Method and apparatus for processing a micro sample |
| 29 | 7,550,740 | Focused ION beam apparatus |
| 30 | 7,550,724 | Electron beam device and its control method |
| 31 | 7,550,695 | Method for manufacturing a magnetic disk device with improved head gimbal assembly |
| 32 | 7,550,678 | Plasma display module |
| 33 | 7,550,210 | Perpendicular magnetic recording medium with multiple exchange-coupled magnetic layers having substantially similar anisotropy fields |
| 34 | 7,550,115 | Apparatus and method for arraying beads |
| 35 | 7,550,083 | Process and equipment for treating ammonium containing liquid |
| 36 | 7,550,082 | Process and equipment for treating ammonium containing liquid |
| 37 | 7,550,047 | Rare earth element-iron-boron alloy and magnetically anisotropic permanent magnet powder and method for production thereof |
| 38 | 7,549,602 | Tape cartridge |
| 39 | 7,549,601 | Level wound coil mounted on pallet, and package for same |
| 40 | 7,549,507 | Duct wall structure |
| 41 | 7,549,335 | Free fall detection device |
| 42 | 7,549,284 | Diagnostic device and method of engine exhaust purifying system |
| 43 | 7,549,215 | Method for manufacturing a magnetic head for perpendicular magnetic data recording |
| 44 | 7,549,213 | Method for independent trackwidth and wall angle control and hexagonal write head |
| 45 | 7,549,208 | Method of mounting electronic circuit chip |
