Hitachi patents granted on 24 April 2012

69 US patents granted on 24 April 2012 and assigned to Hitachi

1 D658,211 Hydraulic excavator
2 8,166,548 Computer system and method for scanning computer virus
3 8,166,495 Optical pickup
4 8,166,376 Techniques for correcting errors and erasures using a single-shot generalized minimum distance key equation solver
5 8,166,327 Network system
6 8,166,270 Storage control apparatus, data management system and data management method for determining storage heirarchy based on a user policy
7 8,166,264 Method and apparatus for logical volume management
8 8,166,243 Information processing system and program for controlling the information processing system
9 8,166,241 Method of improving efficiency of capacity of volume used for copy function and apparatus thereof
10 8,166,235 Flash memory storage system
11 8,166,232 Metrics and management for flash memory storage life
12 8,166,209 Computer system provided with hypervisor
13 8,166,202 Computer supporting remote scan
14 8,165,784 Apparatus and method for learning reference position of variable valve unit
15 8,165,776 Drive assist system
16 8,165,747 Pedal system and vehicle with the pedal system
17 8,165,745 Vehicle control system
18 8,165,743 Controller for inverter
19 8,165,641 Noise suppression system, sound acquisition apparatus, sound output apparatus, and computer-readable medium
20 8,165,620 Radio communication apparatus with a bus dedicated to data transmission
21 8,165,601 Positional information system
22 8,165,467 Optical transmission system and optical node
23 8,165,453 Method and apparatus for data reproduction
24 8,165,123 Packet forwarding device and packet priority setting method
25 8,165,006 Optical disc device and data reproduction method for the same
26 8,165,004 Optical pickup device
27 8,164,997 Optical disc apparatus for conducting information recording or reproduction on an optical disc
28 8,164,996 Power adjustment method, information write method and information write medium
29 8,164,988 All-optical magnetic recording system using circularly polarized light and bit-patterned media
30 8,164,987 Thermally assisted magnetic head
31 8,164,940 Read/write structures for a three dimensional memory
32 8,164,902 Electronic apparatus
33 8,164,863 Current-perpendicular-to-plane (CPP) read sensor with multiple ferromagnetic sense layers
34 8,164,861 Spin torque oscillator sensor employing antiparallel coupled oscilation layers
35 8,164,860 Servo write robust and good altitude performance ABS
36 8,164,856 Magnetic tape apparatus
37 8,164,731 Liquid crystal display device
38 8,164,728 Liquid crystal display device
39 8,164,720 Liquid crystal display apparatus
40 8,164,717 Liquid crystal display and display
41 8,164,712 Liquid crystal display device
42 8,164,711 Liquid crystal display device
43 8,164,560 Display device
44 8,164,551 Liquid crystal display device
45 8,164,550 Liquid crystal display device
46 8,164,410 Low-loss ferrite and electronic device formed by such ferrite
47 8,164,399 Thin film piezoelectric vibrator, thin film piezoelectric bulk acoustic wave resonator, and radio-frequency filter using such resonator
48 8,164,297 Power converter and motor driving system
49 8,164,093 Display device
50 8,164,058 Specimen observation method
51 8,164,053 Mass analyzer and mass analyzing method
52 8,163,999 Insulation-coated wire
53 8,163,652 Plasma processing method and plasma processing device
54 8,163,541 Cell culture apparatus and control method thereof
55 8,163,438 Composite electrolyte membrane, production method thereof, membrane-electrode assembly, and fuel cell
56 8,163,405 System, method and apparatus for multiple anisotropy layered magnetic structures for controlling reversal mechanism and tightening of switching field distribution in bit patterned media
57 8,163,110 Superfine copper alloy wire and method for manufacturing same
58 8,163,106 R-Fe-B based sintered magnet having on the surface thereof vapor deposited film of aluminum or alloy thereof, and method for producing the same
59 8,163,052 Safety cabinet
60 8,162,725 Abrasive, method of polishing target member and process for producing semiconductor device
61 8,162,623 High-pressure liquid supply pump
62 8,162,618 Method and device for controlling pump torque for hydraulic construction machine
63 8,162,489 Video projection system
64 8,162,087 Construction machine
65 8,161,955 Ignition coil device for internal combustion engine
66 8,161,859 Miter saw
67 8,161,815 Ultrasound diagnostic apparatus
68 8,161,736 Exhaust gas cleaning system for engineering vehicle
69 8,161,627 Method of making a write head lapping guide about aligned to a non-magnetic layer surrounding a write pole