Hitachi patents granted on 18 September 2007

51 US patents granted on 18 September 2007 and assigned to Hitachi

1 7,272,852 Reserve/release control method
2 7,272,843 Broadcasting method and broadcast signal receiver apparatus
3 7,272,841 Disk for disk drive having crack blocking portions
4 7,272,799 Virtual machine system and virtual machine control method
5 7,272,727 Method for managing external storage devices
6 7,272,693 Storage system and back-up method for storage system
7 7,272,686 Storage system
8 7,272,670 Integrated multimedia system
9 7,272,665 Modular computer system and I/O module
10 7,272,661 Disk device and disk access route mapping
11 7,272,465 Chemical substance total management system, storage medium storing chemical substance management program and chemical substance total management method
12 7,272,418 Base station and wireless communication system
13 7,272,325 Optical transmission system for substantially equalizing the output signal level among frequency bands and substantially lowering the signal-to-noise ratio
14 7,272,314 Optical crossconnect apparatus and optical transmission system
15 7,272,279 Waveguide type optical branching device
16 7,272,253 Method for non-destructive inspection, apparatus thereof and digital camera system
17 7,272,200 Phase shifter, phase shifting method and skew compensation system for high-speed parallel signaling
18 7,272,185 Moving picture encoding apparatus
19 7,272,134 Internet telephone connection method, bandwidth controller and gate keeper
20 7,272,068 Semiconductor device
21 7,272,004 Frequency converter
22 7,271,982 Perpendicular magnetic recording head built using an air-bearing surface damascene process
23 7,271,976 Magnetic disk drive and method for seek operations with reduced noise
24 7,271,975 Controlling head flying height in a data storage device
25 7,271,974 Method of self servo write with low density gas
26 7,271,970 Composite magnetic head arranged so the reproducing elements do not overlap a pole of a recording element
27 7,271,969 Apparatus for providing high speed, linear-phase interpolation
28 7,271,967 System and method for determining whether defect in perpendicular recording disk drive is from thermal asperity or defect in magnetically soft underlayer
29 7,271,908 Apparatus and method for measuring alignment accuracy, as well as method and system for manufacturing semiconductor device
30 7,271,892 Method and apparatus for inspecting defects
31 7,271,870 Liquid crystal display device and method of making same
32 7,271,869 Liquid crystal display device
33 7,271,783 Display device
34 7,271,771 Film antenna
35 7,271,658 Electric component for high frequency power amplifier
36 7,271,598 Conductor coil defect identifier
37 7,271,557 AC motor driving apparatus and method of controlling the same
38 7,271,500 Electrical rotating machine control unit and power generation system
39 7,271,427 Liquid crystal display device, illumination device backlight unit
40 7,271,421 Light-emitting diode array
41 7,271,404 Group III-V nitride-based semiconductor substrate and method of making same
42 7,271,385 Inspection method and inspection apparatus using electron beam
43 7,270,854 Method for forming a head having improved spin valve properties
44 7,270,758 Method to improve ability to perform CMP-assisted liftoff for trackwidth definition
45 7,270,489 Optical transceiver
46 7,270,270 Optical scanner control method, optical scanner and laser machining apparatus
47 7,270,261 Print management system
48 7,270,118 Control apparatus of engine
49 7,270,012 Semiconductor device embedded with pressure sensor and manufacturing method thereof
50 7,270,000 Fluid flow sensor and fluid flow measurement device
51 7,269,999 Thermal airflow meter