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Document Title |
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7812813 |
ePaper stamp
A method and apparatus are provided for stamping a piece of ePaper. A grid is positioned within a selected distance to a first side of the piece of ePaper. A grounding pin conductively connects a...
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7667047 |
Colorant
A colorant contains a crystal of a compound represented by the following formula (1): the crystal having a crystal form showing main peaks at interplanar spacings d of 3.45±0.5 Å, 3.63±0.5 Å, 4.23±...
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7324264 |
Electro-optical modulating display and method of making the same
This invention relates to a method of manufacturing micro-cell arrays. Such an array may find use in a number of applications such as, for example, a video display, electronic paper, and signage....
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7298544 |
Method for patterning self-assembled colloidal photonic crystals and method for fabricating 3-dimensional photonic crystal waveguides of an inverted-opal structure using the patterning method
A method for patterning self-assembled colloidal photonic crystals and a method for fabricating three-dimensional photonic crystal waveguides having an inverted-opal structure using the patterning...
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7177067 |
Color electronic paper display device
A color electronic paper display device is provided which is easy to fabricate and can provide bright display. The color electronic paper display device includes a CF (Color Filter)-formed TFT...
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7113323 |
Magnetophoretic and electromagnetophoretic displays
The present invention is directed to a display device which comprises two layers of insulating substrate, at least the substrate on the viewing side is transparent, an array of display cells...
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6670981 |
Laser printing with rewritable media
A laser printing system for imaging using plain paper, rewritable media, or both. The rewritable media employs a molecular colorant. The rewritable media is brought into contact with an electrical...
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6577433 |
Electrophoretic displays, display fluids for use therein, and methods of displaying images
An electrophoretic display liquid composition for use in an electrophoretic display device that has a multiplicity of individual reservoirs, each containing the display liquid of two sets of...
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6194488 |
Method for making polymer-coated pigment particles using initiator-treated pigments
A method of making polymer-coated pigment particles, involving the steps of providing a plurality of pigment particles, each of which has an outer surface coated with a layer of material that...
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6045955 |
Print method and apparatus for re-writable medium
A low cost, high speed, high resolution laser printer method and apparatus for re-writable media is presented. Three aspects are presented: 1) a bi-stable, microencapsulated colorant and surface...
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5932633 |
Method for making polymers-coated pigment particles using initiator-treated pigments
A method of making polymer-coated pigment particles, involving the steps of providing a plurality of pigment particles, each of which has an outer surface coated with a layer of material that...
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5866637 |
Magnetic thermal transfer ribbon with non-metallic magnets
There is provided by the present invention coating formulations and thermal transfer media that form printed images which are readable by magnetic ink character recognition (MICR) devices. These...
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5629920 |
Photoelectric sensor, information recording system, and information recording method
An information recording system including a photoelectric sensor having a semiconductive, photoconductive layer stacked on an electrode, and an information recording medium having an information...
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5344594 |
Method for the fabrication of multicolored balls for a twisting ball display
A method of forming hemispheric bichromal balls, including the steps bringing together two streams of differently colored hardenable liquids for forming a single side-by-side bichromal stream,...
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4634647 |
Electrophotographic devices containing compensated amorphous silicon compositions
An electrophotographic photoresponsive device for use in electrophotography comprised of a supporting substrate, and an amorphous silicon composition containing from about 25 parts per million by...
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4634646 |
Method for the formation of electrophotographic images
A method for the formation of images comprising: (1) feeding a photoconductive toner, having a particle diameter of on the average 6 μm or less, to a conductive substrate to form a toner layer of ...
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4578330 |
Hydroxyaluminumphthalocyanine having reduced green absorption
An hydroxyaluminumphthalocyanine colorant compound with reduced green absorption having peak absorption bathochromically shifted to 621 nm is disclosed. In a preferred embodiment,...
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4535046 |
Chloroaluminumphthalocyanine exhibiting reduced green spectral absorption
A chloroaluminumphthalocyanine (CAP) colorant compound having peak absorption at about 640 nm and reduced absorption below the 640-nm peak are disclosed. CAP is useful as an electrically...
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4463076 |
Merocyanine-cyanine-merocyanine (MCM) electrically photosensitive colorants for photoelectrophoretic imaging
Electrically photosensitive complex cyanine colorant compounds, each comprising two merocyanine moieties joined by a cyanine moiety, are useful in electrically photosensitive materials for...
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4431721 |
Use of perylene pigments for photoelectrophoretic imaging
A photoelectrophoretic imaging process, wherein a suspension of photosensitive pigment particles between two electrodes, at least one of which is transparent, is subjected to the influence of an...
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4430409 |
Developer for electrophotography with wet process silicic acid
As a developer for developing electrostatic images in electrophotography, electrostatic recording, electrostatic printing, etc., there is employed a developer containing a finely divided silicic...
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4427752 |
Use of isoindoline pigments for photoelectrophoretic imaging
A photoelectrophoretic imaging process, wherein a suspension of photosensitive pigment particles between two electrodes, at least one of which is transparent, is subjected to the influence of an...
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4401498 |
Process for producing reciprocal adhesion at the interface between two contacting layers with aluminum hydroxide being included in one of said layers
The invention relates to a process for producing reciprocal adhesion at the interface between two contacting layers of condensation crosslinking and addition crosslinking polysiloxanes, aluminum...
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4361636 |
Ionic polyesters for electrically photosensitive composite particles, materials, elements and photoelectrophotoretic imaging methods
Novel polyesters comprising repeating units from: (a) a diacid derived component comprising a group selected from the class consisting of an alkali metal or ammonium -sulfoarylene,...
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4358521 |
Photoconductive composition with 5-nitrofurfural derivative sensitizer
Photoconductive compositions and electrophotographic photoreceptive materials are described containing a photo-conductive substance and a 5-nitrofurfural derivative represented by formula (1)...
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4331751 |
Electrically photosensitive materials and elements for photoelectrophoretic imaging processes
Electrically photosensitive materials and elements comprising an electrically photosensitive polymeric compound of the structure: ##STR1## wherein: R1 and R3, which are the same or different,...
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4322487 |
Composite electrically photosensitive particles for electrophoretic migration imaging process
The present invention provides novel composite electrically photosensitive particles. Each of said particle comprises a colorant and a polymeric binder comprising repeating units containing one or...
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4314013 |
Particle formation by double encapsulation
An improved photoelectrophorectic imaging process which comprises placing a suspension of double encapsulated electrically photosensitive particles in an electric field between a pair of surfaces,...
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4311775 |
Novel phthalocyanine pigments and electrophotographic uses thereof
Novel phthalocyanine pigments having the structure: ##STR1## wherein: R1 represents ##STR2## n represents 1, 2, 3 or any combination of 1, 2 and 3. R2, R3, R4 and R5 represent alkyl, alkylaryl,...
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4299894 |
Electrically photosensitive materials and elements for photoelectrophoretic imaging processes
Electrically photosensitive materials and elements comprising an electrically photosensitive compound of the structure: ##STR1## wherein: n represents zero, 1 or 2; Y represents 0 or S; Z...
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4283475 |
Pentamethine thiopyrylium salts, process for production thereof, and photoconductive compositions containing said salts
2,6-Di-tert-butyl-4-[5-(2,6-di-tert-butyl-4H-thiopyran-4-yli
dene)penta-1,3- dienyl]thiopyrylium salts, which are novel, colorless, transparent, having an adsorption in the far infrared to near...
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4272596 |
Electrophoretic display device
An electrophoretic display device which provides high contrast images and a stable suspending fluid is described. A white marking material such as titanium dioxide is suspended in a colloidal...
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4255506 |
Electrophoretic migration imaging dispersion
In general, materials having the structure ##STR1## wherein n equals 1 or 2; A represents phenylene, naphthylene, anthracenyl, anthracenediyl, and dibenzothien-diyl; R1 and R2 which may be the same...
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4251609 |
Isoquinolinedione photoelectrophoretic materials for imaging processes
Electrophotosensitive materials having the structure ##STR1## wherein R represents a basic heterocyclic nucleus as well as groups such as hydrogen, alkyl, aryl, aralkyl, etc.; A1 represents a wide...
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4197120 |
Electrophoretic migration imaging process
An improved electrophoretic migration imaging process is disclosed wherein the improvement comprises the use of electrically photosensitive particles containing a colorant having an absorption...
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RE30235 |
Photosensitive colorant materials
Colorant materials which exhibits useful levels of electrical photosensitivity are disclosed. These materials have the formula: ##STR1## wherein n represents 0 or 1, m represents 1 or 2, Ar...
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4191566 |
Electrophotographic imaging process using anthraquinoid black pigments or metal complexes
An electrophotographic imaging process, wherein the electrically photosensitive particles for the image reproduction consist of a black pigment selected from the series of the anthraquinoid...
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4175956 |
Electrophotosensitive materials for migration imaging processes
Electrophotosensitive materials having the structure ##STR1## is disclosed wherein R1 and R2, which may be the same or different, represent a monovalent or divalent substituted or unsubstituted 5...
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4172721 |
Dye-amplified imaging process
A color separation imaging process employing an imaging monolayer of particles comprising a resin carrier containing color-photosensitive material, and a solid-form dye material. The monolayer is...
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4142890 |
Photosensitive trans-epindolidione pigment for migration imaging processes
Trans-epindolidione is a useful yellow material in forming photoelectrophoretic migration images.
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4104064 |
Photoelectrophoretic imaging method employing dinaphtho-furan-dione pigments
There are described novel yellow compounds which are represented by the formula ##STR1## wherein X is a member selected from the group consisting of ##STR2## The compounds may be used for various...
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4076527 |
Photosensitive composition useful in photoelectrophoretic imaging
Photosensitive composition for use in photoelectrophoretic imaging systems. The particulate component of this composition includes vanadyl phthalocyanine pigment particles which have been treated...
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4047944 |
Electrophoretic migration imaging process with neutral density bisazo pigments
An improved electrophoretic imaging process is provided wherein the improvement comprises the use of electrostatic charge-bearing particles having an electrically photosensitive pigment which is...
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4017311 |
Photoelectrophoretic imaging suspension
There are described novel yellow compounds which are represented by the formula ##STR1## wherein X is a member selected from the group consisting of ##STR2## The compounds may be used for various...
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4012252 |
Imaging process utilizing 3-bromo-N-2"-pyridyl-8,13-dioxodinaphtho-(2,1-b;2',3'-d)-furan-6-carboxa mide
3-Bromo-N-2"-pyridyl-8,13-dioxodinaphtho-(2,1-b;2',3'-d)-fur
an-6-carboxamid e is described as a new composition of matter along with its use in electrophotographic and photoelectrophoretic imaging...
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4002475 |
Photoconductive process for making electrographic masters
A method of photoconductivity attracting cationic resins in an imagewise fashion to a photoconductor, wherein the photoconductor in contact with the resin is biased positively. The resultant resin...
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3953462 |
Imaging process
3-Bromo-N-2"-pyridyl-8,13-dioxodinaphtho-(2,1-b;3',3'-d)-fur
an-6-carboxamid e is described as a new composition of matter along with its use in electrophotographic and photoelectrophoretic imaging...
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3933664 |
Organic photoconductive toner materials
A light-transparent photoconductive material for use in electrophotography is the reaction product obtained by condensing A. an organic photoconductive compound containing an amino and/or hydroxyl...
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3933487 |
Imaging composition for photoelectrophoretic imaging system
A solid imaging ink-coated sheet for use in photoelectrophoretic imaging systems comprising a support substrate having adhered to a surface thereof a thin, solid layer of an imaging ink suspension....
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3926629 |
Electrophotographic method and plate employing a phthaldcyanine polymer
A xerographic plate including a photoconductive insulating layer made from a polymer containing phthalocyanine is disclosed. A method of forming a latent electrostatic image on said plate is also...
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