Fujitsu patents granted on 12 February 2008

24 US patents granted on 12 February 2008 and assigned to Fujitsu

1 RE40,053 Delay circuit having delay time adjustable by current
2 7,331,025 Data storage method and data storage device
3 7,330,973 Safety judgment method, safety judgment system, safety judgment apparatus, first authentication apparatus, and computer program product
4 7,330,968 Communication network system having secret concealment function, and communication method
5 7,330,961 Cache control method and processor system
6 7,330,947 Method and apparatus for backing up data in virtual storage medium
7 7,330,921 Communication control circuit and communication control method
8 7,330,918 Buffer memory management method and system
9 7,330,914 DMA controller, DMA control method and DMA control program
10 7,330,813 Speech processing apparatus and mobile communication terminal
11 7,330,617 Wavelength selective optical switch, and optical device provided with spectroscopic function
12 7,330,616 Micromirror element and optical switch
13 7,330,498 Spread communication system and mobile station thereof
14 7,330,424 Node device in network, and network system
15 7,330,411 Optical information storing device, data processing circuit and information storage medium
16 7,330,402 Portable device, method of notifying application execution in portable device, and computer product
17 7,330,303 Wavelength division multiplexed optical amplifier
18 7,330,154 Antenna device and wireless communication apparatus
19 7,330,083 Oscillator having voltage dividing circuit
20 7,330,062 Input/output logical circuit
21 7,330,057 DPLL circuit having holdover function
22 7,330,043 Semiconductor device and test method for the same
23 7,329,952 Method of fabricating a semiconductor device
24 7,329,481 Substrate optical waveguides having fiber-like shape and methods of making the same