U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 6295668

Maternity Beach Chair

A beach chair which can be adapted for a woman who is pregnant and wishes to sunbathe in the prone position.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 349/3 - Printer or print bar


Subclass of Class 349 - Liquid crystal cells, elements and systems
Definition: Subject matter wherein the recording or image forming takes
No. of patents: 74
Last issue date: 04/22/2008


1    
NumberTitleIssue Date
7362485Image display medium, image writing device, and image forming apparatus
An image display medium comprising: a display layer; a pair of substrates that retain the display layer therebetween, with at least parts of the pair of substrates configuring a frame portion to which an electrical connection connector for electrical connection to t...
04/22/2008
7352416Polarization direction of incident light beam perpendicular or parallel to liquid display molecular orientation for reduced drive voltage
A liquid crystal display element comprising two transparent substrates, at least one of which is transparent, and a liquid crystal layer interposed between the two substrates. A plurality of pixels and active elements for driving the liquid crystal at the plurality ...
04/01/2008
7298427Method for applying substances with liquid crystals to substrates
The invention relates to a method for applying substances comprising liquid crystals to substrates, wherein the substance is maintained at a working temperature inside a coating device, in particular a printing mechanism, the substance being in a liquid state at sai...
11/20/2007
7195163Laser scanning unit
A laser scanning unit to form an electrostatic latent image according to an image signal by projecting a light onto a photosensitive medium. The laser scanning unit has a light source having a cylindrical shape of a predetermined length; a reflective member surround...
03/27/2007
7182982All-optically prepared and controlled nematic liquid crystal light valve
The present invention provides a device that acts as an optical switch to control the intensity of a light beam through the action of a second control beam. This behavior is achieved through photoinduced anisotropy that develops in a monomolecular layer coating the ...
02/27/2007
7170568Liquid crystal shutter device for color imaging on photosensitive medium
A liquid crystal shutter device is provided with a liquid crystal cell including a first substrate (1), a second substrate (21), and liquid crystal sandwiched therebetween, pixel electrodes (11, 12) which are signal electrodes and lead-out elect...
01/30/2007
7170569Liquid crystal shutter and printhead
The present invention relates to a liquid crystal shutter (5). The liquid crystal shutter (5) includes a first and a second transparent substrates (50), (51) arranged to face each other; a light shielding film (52) formed on a surf...
01/30/2007
7161642Liquid crystal display module and assembling method thereof
The liquid crystal display module comprises a bottom cover having a plurality of lamps installed thereon and at least one or more of guide projection formed thereon; and a reflection sheet for reflecting light generated from the lamps and having a guide hole in orde...
01/09/2007
7110066Color-filter substrate, method and apparatus for manufacturing color-filter substrate, and liquid crystal display and method for manufacturing liquid crystal display
To make it difficult to view streak unevenness in alignment generated at the boundary of alignment layers even when an alignment-layer material is applied onto a color-filter substrate several times to form an alignment layer. When an alignment-layer material is app...
09/19/2006
7095470In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions
A liquid crystal display device includes a pair of substrates with a liquid crystal layer therebetween, scanning signal lines and video signal lines formed on one of the substrates, first electrodes provided on the one substrate, second electrodes provided on the on...
08/22/2006
7081929Liquid crystal shutter panel, an optical printer head and a method for manufacturing the liquid crystal shutter panel
A blocking mask and an electrode coating are formed using a gold film. The blocking mask and the electrode coating are formed together by printing an organic gold paste only in a necessary part and baking the printed organic gold paste. ...
07/25/2006
7042598Variable reflectance cover
A variable reflectance cover for a scanning system. The cover comprises a backing moveable through a plurality of positions. Moving the backing through the plurality of positions varies the reflectance of the cover. In one embodiment, the backing is an endless rotat...
05/09/2006
7042538Overlapping color filter structure and method of making the same
A color filter structure of a liquid crystal display (LCD) has a plurality of color filters coupling with each other disposed on a substrate. An overlapping region is positioned between adjacent color filters, and a surface of color filter in the overlapping region ...
05/09/2006
7042530Transfer apparatus
The transfer apparatus includes a light source, a transmission type image display device in which a liquid crystal layer is held between two sets of substrates and polarizing plates and a photosensitive recording medium. The light source, the image display device an...
05/09/2006
6952293Document backing surface for show-through and artifact reduction
A document-backing surface for reducing show-through when a duplex-printed document is scanned but without producing undesirable artifacts. The document-backing surface has a plurality of first and second light-absorbing surfaces, and a plurality of specularly refle...
10/04/2005
6930804System and method for automatically detecting edges of scanned documents
A method for identifying document edges collects a predetermined number scanlines of the document. Both first order and second order statistics are then calculated based on the scanned data. A first slope value being a function of the difference between a plurality ...
08/16/2005
6642492Calibration apparatus for light emitting elements in an optical printer
Calibration of the light emitting elements in an optical printer is carried out by mounting the optical printer on an external monitoring apparatus. The external monitoring apparatus comprises: a sensor mounting portion whereon a plurality of photosensors...
11/04/2003
6556181Matrix driven liquid crystal display module system apparatus and method
Provided are a color display driving principle obtained while taking into account a difference in eye sensitivity to the flickering of differently colored lights, a TFT liquid crystal display module structure that is adequate for this method, and a double...
04/29/2003
6469754Liquid-crystal display with scanner
A liquid-crystal display apparatus with a scanner comprising: a liquid-crystal panel 3 used for display, an image sensor 5 used to read an image on a manuscript 10, a light source 1 illuminating the liquid-crystal panel 3 and the manuscript 10, and a diff...
10/22/2002
6262782Reflective LCD having polarized light separator and phase plate on a light-incident-side
A reflective LCD includes first and second substrates facing each other, a liquid crystal layer disposed between the upper and lower substrates, a high transmissive polarizer attached on an outer surface of the first substrate, and an optical system dispo...
07/17/2001
6141065Optical color printer assembly
Trichromatic light exposed through a liquid crystal panel upon which liquid crystal shutter elements are two-dimensionally arranged is exposed so as to form an image in the same position on a photosensitive recording medium by moving the photosensitive re...
10/31/2000
6124872Optical writing device with controlled driving voltages
Disclosed is an optical writing device having an array of a plurality of writing light shutter elements for an image forming purpose. The optical writing device also has at least one first monitoring light shutter element and at least one second monitorin...
09/26/2000
6031586Liquid crystal printing apparatus for radiation thermal transfer of colorant from a donor to a receiver
Printing apparatus for radiation thermal transfer of colorant from a donor to a receiver, including a flash tube for emitting high intensity radiation; a polarizer for receiving high intensity radiation from the flash tube and polarizing such radiation; a...
02/29/2000
5982529Apparatus for reducing linear artifacts in an optically-printed image
A spatial light modulator for use in a optical printer where the spatial light modulator includes a plurality of cells, having a shape that is defined to decrease artifacts in an image produced on a recording medium by the optical printer. The shape of th...
11/09/1999
5930021Optical shutter element drive mechanism
An optical shutter element drive mechanism for driving optical shutter elements that are electrically equivalent to condensers by charging and discharging the elements by a power source and switching elements. The optical shutter element drive mechanism i...
07/27/1999
5805274Photographic printer utilizing a photoactivated liquid-crystal light valve in order to enhance image processing
A photographic printer has a lamp which projects light through a cut-off filter, a filter unit, and a diffusion plate. The light travels further through a film negative, an objective lens, and to a polarizing beam splitter. The beam splitter provides the ...
09/08/1998
5790211Platen cover for a digital document scanner with electrically switchable reflectance modes
A system and method digitally scans a document using a high reflectance mode and a low reflectance mode. Initially, a platen cover provides a low reflectance background around the document and the scanner scans the low reflectance background and document ...
08/04/1998
5587264Electrostatic information recording medium and electrostatic information recording and reproducing method
The electrostatic information recording medium according to the present invention comprises an electrode layer and an electric charge retaining layer. By improving the laminating method of electric charge retaining layer or by improving the layer arrangem...
12/24/1996
5312703Reversible or irreversible production of an image
A process for the reversible or irreversible production of an image by imagewise exposure of a recording layer to energy in the presence or absence of an electrical and/or magnetic field, resulting in a pattern of surface charges on the surface of the rec...
05/17/1994
5260728Apparatus for reducing, enlarging and projecting image information
A light beam (30) including a random polarization and radiated from a light source, such as laser oscillator (6) is separated into P wave polarization light beam and S wave polarization light beam by a beam splitter 33. After modulated by image informatio...
11/09/1993
5245438Image formation apparatus having selective erasing capability
An image formation apparatus includes a writing device for selectively writing image data on a liquid crystal cell by beam light, a printer for printing out an image on a recording medium, an erasing device for erasing the image written on the liquid crys...
09/14/1993
5223960Image-producing apparatus for a video printer
An image-producing apparatus for a video printer comprising a liquid crystal display having pixels of red, green, and blue adapted to produce an image in response to a scanning line signal from a video signal, light source disposed at the rear of the liqu...
06/29/1993
5191358Light scanning device with microlenses having a same power density distribution as a power density distribution of a photosetting light beam
A light scanning device of the present invention comprises: a light source for emitting light; a liquid crystal shutter array comprising a plurality of liquid crystal shutters arranged in a first direction, the liquid crystal shutter array receiving image...
03/02/1993
5191408Color imaging system with selectively openable optical shutter
A color imaging system for use as an electronic still camera, for example, includes a color separator for separating the optical image of a subject from a lens into a plurality of different color images, an optical shutter selectively openable for transmi...
03/02/1993
5172164Image forming apparatus with microcapsules dispersed in the photoconductive member
According to the present invention, an image forming apparatus uses a photoconductive member in which microcapsules with a liquid crystal material sealed therein are dispersed inside of a photoconductive layer thereof and comprises a charger for uniformly...
12/15/1992
5095376Apparatus and method for driving an optical printer having a liquid crystal optical switch
An apparatus and method for driving an optical printer having at least one liquid crystal optical switch including a ferroelectric liquid crystal layer interposed between a pair of substrates having electrodes on confronting surfaces thereof, the at least...
03/10/1992
5052785Color liquid crystal shutter having more green electrodes than red or blue electrodes
A color liquid crystal shutter matrix for use in a color image printer for example has a liquid crystal panel including a liquid crystal sealed between transparent substrates. A drive electrode assembly is mounted in the liquid crystal panel and drivable ...
10/01/1991
4992824Apparatus and method utilizing an LCD for printing
Method and apparatus which utilize an LCD modulator array for printing and/or enlarging an image recorded in a color film negative, a positive transparency or a color print, which LCD modulator array has pixels whose "closing time" (the time it takes to c...
02/12/1991
4939529Method for driving and controlling liquid crystal and device
Because the prior art liquid crystal driving control circuit needs shift registers, latch circuits and selectors in a number corresponding to the number of cells in the liquid crystal shutter array, the structure of the circuit inevitably becomes complica...
07/03/1990
4929057Liquid crystal optical device
A liquid crystal optical device including a plurality of optical shutters is provided. The optical device includes a first glass substrate having N common electrodes disposed thereon and a second glass substrate having N signal electrodes disposed thereon...
05/29/1990
1    
 
Sign InRegister
Username  
Password   
forgot password?