Abstract: A method for forming a conductive pattern on a substrate deposits, onto a surface of the substrate, a nanoparticle ink that comprises nanoparticles of a conductive or semiconductor material, at least one low boiling point solvent, and from 0.1 weight % to 50 weight % of a high boiling point solvent. The method forms a partially wet patterned substrate by drying the deposited nanoparticle ink to a wetness range between about 3 weight % and 8 weight % solvent. The method directs a patterned illumination of laser light to cure the deposited ink pattern on the partially wet patterned substrate.

Abstract: An apparatus for forming a pattern of a nanoparticle-based ink on a substrate has a printing apparatus that is energizable to deposit the nanoparticle-based ink in a pattern on a surface of the substrate. An illumination apparatus is energizable to direct a patterned illumination to cure the deposited ink pattern on the substrate, the illumination apparatus having an array having at least a first and a second laser diode, each laser diode coupled to a channel in a laser light coupling element through an optical fiber and having an illumination lens disposed to direct illumination from the coupling element onto the surface of the substrate. A transport apparatus is energizable to provide relative motion between the substrate and the illumination apparatus.

Abstract: An ink composition for printing conductive layers on a variety of substrates is disclosed. The ink composition comprises polymer encapsulated copper nanoparticles, a primary glycol solvent, an alcohol and a diol monoether. The inventive ink is characterized by excellent jettability and freedom from nozzle-plate flooding. Ink surface tensions are in the range of 34 to 37 mN/m and viscosities are less than 41 cP.

Abstract: An apparatus for forming a pattern of a nanoparticle-based ink on a substrate has a printing apparatus that is energizable to deposit the nanoparticle-based ink in a pattern on a surface of the substrate. An illumination apparatus is energizable to direct a patterned illumination to cure the deposited ink pattern on the substrate, the illumination apparatus having an array having at least a first and a second laser diode, each laser diode coupled to a channel in a laser light coupling element through an optical fiber and having an illumination lens disposed to direct illumination from the coupling element onto the surface of the substrate. A transport apparatus is energizable to provide relative motion between the substrate and the illumination apparatus.

Abstract: An apparatus for forming a pattern of a nanoparticle ink on a substrate has a transport apparatus that is energizable to move the substrate in a direction and a printing apparatus that deposits the nanoparticle ink in a pattern on a surface of the moving substrate. An illumination apparatus directs a patterned illumination to cure the deposited ink pattern on the moving substrate, the illumination apparatus having a light source that generates light directed toward a uniformizer, a spatial light modulator energizable to form a patterned illumination from the uniformized light, and an illumination lens disposed to direct illumination from the spatial light modulator onto the surface of the moving substrate.

Abstract: An ink composition comprising (a) water, (b) pigment particles, (c) at least one humectant, (d) at least one polyurethane having an average molecular weight of at least about 10,000 and a sufficient number of acid groups to provide an acid number from 60 to about 130, and being present at a weight concentration of greater than 0.7%, and (e) at least one water soluble acrylic polymer comprising carboxylic acid groups, present at a weight concentration of greater than 0.6%, wherein the acid groups on the polyurethane and acrylic polymers are at least partially neutralized only with a monovalent inorganic base.

Abstract: An inkjet printer, includes an ink containing a print uniformity improving polymer obtained by chain copolymerizing at least the following ethylenically unsaturated monomers: (a) a first monomer having a lowest pKa value greater than 3 and comprising a carboxylic acid group; (b) a second monomer having a lowest pKa value less than 2; and (c) a hydrophobic third monomer; together with pigment particles that are self-dispersed or dispersed with a dispersant other than a print uniformity improving polymer, and water. Such an ink provides improve print uniformity.

Abstract: Systems and methods for operating upon a mobile communications device. A system and method can be used with data operations with respect to the mobile communications device's memory, wherein the memory has sectors. Data structures are used with the data operations to determine whether a sector contains valid data or to locate a record's pointer in the memory. The data structures can be used for such operations as record creation, record movement, recovery, etc.

Abstract: A process for providing an ozone resistant dye-based image, and a resulting image, includes jetting an ink containing the dye onto a microporous media surface to form a dye-based image, and thereafter jetting over at least a portion of the dye-based image a clear ink overcoat including a transparent polymeric binder containing dispersed inorganic nano particles, wherein the median equivalent circular diameter of all of the dispersed inorganic particles is in the range of 1 to 500 nm. Color fade due to ozone effects is diminished while maintaining jetability.

Abstract: A process for providing an ozone resistant dye-based image, and a resulting image, includes jetting an ink containing the dye onto a microporous media surface to form a dye-based image, and thereafter jetting over at least a portion of the dye-based image a clear ink overcoat comprising a transparent polymeric binder containing dispersed inorganic nano particles, wherein the median equivalent circular diameter of all of the dispersed inorganic particles is in the range of 1 to 500 nm. Color fade due to ozone effects is diminished while maintaining jetability.

Abstract: An inkjet printer, includes an ink containing a print uniformity improving polymer obtained by chain copolymerizing at least the following ethylenically unsaturated monomers: (a) a first monomer having a lowest pKa value greater than 3 and comprising a carboxylic acid group; (b) a second monomer having a lowest pKa value less than 2; and (c) a hydrophobic third monomer; together with pigment particles that are self-dispersed or dispersed with a dispersant other than a print uniformity improving polymer, and water. Such an ink provides improve print uniformity.

Abstract: An ink composition comprising (a) water, (b) pigment particles, (c) at least one humectant, (d) at least one polyurethane having an average molecular weight of at least about 10,000 and a sufficient number of acid groups to provide an acid number from 60 to about 130, and being present at a weight concentration of greater than 0.7%, and (e) at least one water soluble acrylic polyiner comprising carboxylic acid groups, present at a weight concentration of greater than 0.6%, wherein the acid groups on the polyurethane and acrylic polymers are at least partially neutralized only with a monovalent inorganic base.

Abstract: A microcavity color OLED device, includes at least one light-emitting layer arranged so as to produce light; a reflector and a semi-transparent reflector forming a microcavity structure for resonating the light produced in the at least one light emitting layer; and a color filter element disposed over the microcavity structure including a light-scattering material selected so as to reduce the angular dependence of the light that has passed through the color filter element.

Abstract: Photographic compound (A) capable of releasing a photographically useful group by means of intramolecular nucleophilic displacement exhibits increased resistance to hydrolysis when the compound contains in a coupling position a coupling-off group represented by the formula: ##STR1## wherein Q, R.sub.q, R.sub.1, R.sub.2, R.sub.3, n and PUG are as defined in the application. Such a compound (A) is useful in a photographic silver halide material and process.

Abstract: Photographic compounds capable of releasing a photographically useful group (PUG) by means of an intramolecular nucleophilic displacement provide increased image acutance when a coupling-off group in the coupling position of the compound is a group of the formula: ##STR1## wherein PUG is a photographically useful group; Q is N or C--R where R is hydrogen or a substituent that does not adversely affect imaging; and Z represents atoms completing a non-aromatic, heterocyclic ring. The photographic compounds are useful in photographic materials and processes.