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Expired patents of:
Sharp Kabushiki Kaisha

Displaying 1 to 50 of 278 patents. (Retrieval took 2.792 seconds.)

 Patent TitleExpired:
1.Process for producing toner for the development of an electric image2007-02-28
2.Encapsulated liquid crystal in liquid crystal material where one liquid crystal has positive birefringence and dielectric anisotropy, the other has only one positive of birefringence and dielectric anisotropy2007-02-28
3.Dry etching of layer structure oxides2007-02-23
4.Brushless motor driven by applying varying driving signals2007-02-23
5.Liquid crystal display device and method for driving display device2007-02-09
6.Character and symbol pattern generator based on skeleton data including thickness calculation2007-02-09
7.Magnetic recording/reproduction apparatus and method for adjusting head height therein2007-02-09
8.Driving method for a liquid crystal display apparatus2007-01-26
9.Optical switch element and a liquid crystal light directional coupler used in the optical switch element2007-01-10
10.Heat exchanging apparatus and a method of preventing corrosion2007-01-03
11.Coordinate input device used for inputting characters and drawings into a personal computer/word processor2006-12-29
12.Coordinate detection device capable of detecting coordinates using display panel provided specially for display2006-12-29
13.Magnetic reproduction apparatus for reproducing a video signal2006-12-27
14.Color liquid crystal projector device2006-12-22
15.Process for preparing an electroluminescent film2006-12-13
16.Language processing apparatus for carrying out translation process based on sentence pattern information2006-12-06
17.Liquid crystal display device with at least 7.degree. C. liquid crystal to isotropic phase transition temperature difference and method of making2006-12-01
18.Method for designating object on screen2006-11-22
19.Method for distributing spacer particles onto the substrate of a liquid crystal display element, a jig plate and distributing apparatus for distribution therewith2006-11-17
20.Image synthesizing device2006-11-17
21.Image signal processor generating reduced memory consumption still images yet preserving image quality2006-11-15
22.Liquid crystal element and driving method thereof including multi-value signal which ends at zero volts2006-11-08
23.Disk player with variable level search time2006-11-08
24.Method of manufacturing thin film transistor2006-11-03
25.Magnetic tape recording and reproducing apparatus for digital signals of still pictures in the pal system2006-11-01
26.Rotary head cylinder device2006-10-27
27.Method of manufacturing an electroluminescent device2006-10-18
28.Memory device and a method for prohibiting writing to the memory device2006-10-11
29.Digital data detector for reducing errors due to frequency variations2006-10-11
30.Liquid crystal display element and manufacturing method thereof2006-10-08
31.Input detector2006-10-06
32.Motor control device for information recording and reproducing apparatus2006-10-06
33.Fuzzy-neural network system and a learning method therein2006-10-06
34.Heat cooking apparatus with smell sensor2006-10-04
35.Terminal for an IC card2006-10-04
36.Apparatus for sensing a magnetic field with a superconductive material2006-10-04
37.Thermoelectric cooling device and system thereof2006-09-29
38.Liquid crystal display device having multiple insulating films with different etch characteristics2006-09-17
39.Electroluminescent panel2006-09-13
40.Power supply backup device for use in portable electronic apparatus2006-09-13
41.Liquid crystal projector using a spatial light modulator and two rotating color filters2006-09-08
42.Clothing amount measuring apparatus and method using image processing2006-09-08
43.Polymer dispersion type liquid crystal display element and reflection type liquid crystal display device2006-08-30
44.Picture image color separating apparatus2006-08-30
45.Rotary head type magnetic recording reproducing apparatus2006-08-25
46.Electromagnetic wave-to-optical signal converting and modulating device and a communication system using the same2006-08-25
47.Feeding apparatus2006-08-23
48.Inner product calculation device2006-08-18
49.Organic electroluminescent element2006-08-11
50.Liquid crystal display device and method for manufacturing the same2006-08-04

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