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Class Information
Number: 349/3
Name: Liquid crystal cells, elements and systems > Liquid crystal system > Liquid crystal for recording or imaging on photosensitive medium > Printer or print bar
Description: Subject matter wherein the recording or image forming takes place in a device used for printing or a print bar.


Patents under this class:
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Patent Number Title Of Patent Date Issued
7362485 Image display medium, image writing device, and image forming apparatus Apr. 22, 2008
7298427 Method for applying substances with liquid crystals to substrates Nov. 20, 2007
7170568 Liquid crystal shutter device for color imaging on photosensitive medium Jan. 30, 2007
7170569 Liquid crystal shutter and printhead Jan. 30, 2007
7081929 Liquid crystal shutter panel, an optical printer head and a method for manufacturing the liquid crystal shutter panel Jul. 25, 2006
7042530 Transfer apparatus May. 9, 2006
6642492 Calibration apparatus for light emitting elements in an optical printer Nov. 4, 2003
6556181 Matrix driven liquid crystal display module system apparatus and method Apr. 29, 2003
6469754 Liquid-crystal display with scanner Oct. 22, 2002
6262782 Reflective LCD having polarized light separator and phase plate on a light-incident-side Jul. 17, 2001
6141065 Optical color printer assembly Oct. 31, 2000
6124872 Optical writing device with controlled driving voltages Sep. 26, 2000
6031586 Liquid crystal printing apparatus for radiation thermal transfer of colorant from a donor to a receiver Feb. 29, 2000
5982529 Apparatus for reducing linear artifacts in an optically-printed image Nov. 9, 1999
5930021 Optical shutter element drive mechanism Jul. 27, 1999
5805274 Photographic printer utilizing a photoactivated liquid-crystal light valve in order to enhance image processing Sep. 8, 1998
5790211 Platen cover for a digital document scanner with electrically switchable reflectance modes Aug. 4, 1998
5587264 Electrostatic information recording medium and electrostatic information recording and reproducing method Dec. 24, 1996
5312703 Reversible or irreversible production of an image May. 17, 1994
5295006 Optical exposure system for color video printer with light source moving along rod behind three color liquid crystal panels Mar. 15, 1994
5260728 Apparatus for reducing, enlarging and projecting image information Nov. 9, 1993
5245438 Image formation apparatus having selective erasing capability Sep. 14, 1993
5223960 Image-producing apparatus for a video printer Jun. 29, 1993
5191408 Color imaging system with selectively openable optical shutter Mar. 2, 1993
5191358 Light scanning device with microlenses having a same power density distribution as a power density distribution of a photosetting light beam Mar. 2, 1993
5172164 Image forming apparatus with microcapsules dispersed in the photoconductive member Dec. 15, 1992
5095376 Apparatus and method for driving an optical printer having a liquid crystal optical switch Mar. 10, 1992
5052785 Color liquid crystal shutter having more green electrodes than red or blue electrodes Oct. 1, 1991
4992824 Apparatus and method utilizing an LCD for printing Feb. 12, 1991
4939529 Method for driving and controlling liquid crystal and device Jul. 3, 1990
4929057 Liquid crystal optical device May. 29, 1990
4927242 Dual frequency, optically active liquid crystal cell May. 22, 1990
4907859 Liquid crystal device and image forming apparatus utilizing liquid crystal device Mar. 13, 1990
4884079 Image forming apparatus and driving method therefor Nov. 28, 1989
4859034 Liquid crystal optical printing apparatus Aug. 22, 1989
4859035 Ferroelectric liquid crystal light shutter device and method of controlling the driving of the same Aug. 22, 1989
4836654 Drive method for a dual-frequency, dielectric anisotropy liquid crystal optical device Jun. 6, 1989
4830468 Liquid crystal print bar having a single backplane electrode May. 16, 1989
4810062 Liquid crystal cell with opaque mask for printing device Mar. 7, 1989
4783149 Time-sharing drive liquid crystal optical switch array and optical printer using this optical switch array Nov. 8, 1988
4783146 Liquid crystal print bar Nov. 8, 1988
4781441 Method of controlling orientation of liquid crystal, device used therein and liquid crystal device produced thereby Nov. 1, 1988
4782348 Device for high resolution recording of liquid crystal display images Nov. 1, 1988
4767190 Transient state liquid crystal image bar with contrast enhancement Aug. 30, 1988
4745433 Image forming apparatus with a light shutter of the G-H type liquid crystal May. 17, 1988
4712876 Driving ferroelectric liquid crystal printers via short circuiting Dec. 15, 1987
4699498 Image projector with liquid crystal light shutter Oct. 13, 1987
4668071 Character generator using cathode ray tube activated liquid crystal display May. 26, 1987
4641156 Recording apparatus with double frequency driven liquid crystal shutter Feb. 3, 1987
4636807 Apparatus and method for light value gray scale recording Jan. 13, 1987

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