Patent application number | Description | Published |
20080239022 | SELF ALIGNED PORT HOLE OPENING PROCESS FOR INK JET PRINT HEADS - In accordance with the invention, there are jet stacks, ink jet print heads, and methods of making jet stacks and ink jet print heads. The method of making an ink jet print head can include providing a partial jet stack including a diaphragm, a plurality of port holes, and having an ink outlet side and providing a polymer planarized piezoelectric array. The method can also include bonding the polymer planarized piezoelectric array to a side opposite to the ink outlet side of the partial jet stack using an adhesive, wherein the partial jet stack is aligned such that the planarized polymer covers the plurality of port holes, and using the partial jet stack as a mask to extend the port holes through the polymer by ablating the polymer and an excess portion of the adhesive from the ink outlet side using a laser. | 10-02-2008 |
20080291526 | Core-Shell Particles Containing Fluorescent Components for Electrophoretic Displays - An electrophoretic ink includes fluid having either (a) at least two sets of differently colored particles with the fluid been a substantially clear fluid, or (b) at least one set of colored particles with the fluid been a differently colored fluid than the colored particles, wherein at least one set of colored particles includes at least one electrophoretic particle having a core-shell structure. The at least one electrophoretic particle includes a shell and a core located within the shell, wherein the core includes a colorant and a fluorescent compound. An electric field may be applied adjacently to the fluid of the ink, and the at least one set of colored particles having the core-shell structure is movable within the fluid of the ink by the electric field. | 11-27-2008 |
20080292782 | METHOD FOR FORMING AN ELECTRONIC PAPER DISPLAY - Methods form multi-color electrophoretic displays. The method includes providing a solution containing microcapsules, wherein the microcapsules comprise a shell that is transparent and a display medium within the shell, wherein the display medium comprised of either (a) at least two sets of differently colored particles in a substantially clear fluid, or (b) at least one set of colored particles in a differently colored fluid. The method includes dispensing the solution onto a substrate, wherein a display layer of microcapsules is formed on the substrate. The method includes positioning a conductive substrate adjacent to the substrate, wherein the substrate is located between the display layer and the conductive substrate, wherein the conductive substrate applies an electric field to at least one microcapsule of the display layer, wherein the sets of particles of each microcapsule in the display layer are movable within the microcapsule by the electric field to be displayed. | 11-27-2008 |
20080292978 | METHOD FOR FORMING AN ELECTRONIC PAPER DISPLAY - Methods form a multi-color electrophoretic display. The methods include providing microcapsules, wherein the microcapsules have an electrostatic charge, and wherein the microcapsules comprise, a shell that is transparent and a display medium within the shell, wherein the display medium is comprised of either (a) at least two sets of differently colored particles in a substantially clear fluid, or (b) at least one set of colored particles in a differently colored fluid. The methods include transferring the microcapsules to a substrate, wherein the electrostatic charge of the microcapsules attracts the microcapsules to the substrate, wherein a display layer of microcapsules is formed on the substrate. The methods include positioning a conductive substrate adjacent to the substrate, wherein the substrate is located between the display layer and the conductive substrate. In use, the conductive substrate applies an electric field to the display layer, and wherein the sets of particles within each microcapsule in the display layer are moveable within the microcapsule by the electric field. | 11-27-2008 |
20080299396 | DUCTILE POLYMER-PIEZOELECTRIC MATERIAL COMPOSITE FOR INK JET PRINTHEADS - In accordance with the invention, there are free-standing ductile composites, liquid dispensing devices, and methods of making free-standing ductile composites, liquid dispensing devices. The method of making a free-standing ductile composite can include providing a substrate and releasably bonding one or more piezoelectric elements to the substrate. The method can also include kerfing the piezoelectric elements in a predetermined pattern to form a kerfed pattern, filling the kerfed pattern with a polymer to form a polymer-piezoelectric composite, and lapping the polymer-piezoelectric composite. The method can further include releasing the polymer-piezoelectric composite from the substrate. | 12-04-2008 |
20080309690 | Mixing device and mixing method - A mixing method is disclosed. The mixing method includes providing a drop generating device including a first drop ejector, a second drop ejector and a collector. The mixing method also includes ejecting a plurality of drops of a first reactant from the first drop ejector and ejecting a plurality of drops of a second reactant from the second drop ejector and collecting the drops with the collector. | 12-18-2008 |
20090040616 | Fabry-perot piezoelectric tunable filter - Disclosed is a microelectromechanically tunable Fabry-Perot device and method of manufacturing tunable Fabry-Perot device and method of manufacturing. The F-P device comprises a first and second substrate which has partially reflective planar surfaces, and the partially reflective planar surfaces are separated by a predetermined separation distance and aligned to provide a F-P cavity, where one or more piezoelectric members are adapted to displace the first and second substrates when an electric field is applied. | 02-12-2009 |
20090080955 | Content-changing document and method of producing same - Sheet print media are printed/marked with both transient and permanent marking which may be juxtaposed or the transient marking overprinted to change the meaning or message of text on the appearance of an image over time. Applications include advertising and labels for articles of commerce. The method applies to plain paper or coated print media for subsequent ultraviolet radiation. | 03-26-2009 |
20090113710 | Method for fabricating a transducer with improved thickness uniformity - A system for fabricating a transducer for an ink jet imaging device comprises a transducer assembly including a transducer overlying at least a portion of a flexible carrier. The transducer has a top surface extending a first distance from the carrier. A spacer overlies a portion of the carrier not covered by the transducer. The spacer has a top surface extending a second distance form the carrier. The second distance is less than the first distance and corresponds to a target thickness for the transducer. A lapping tool is configured to lap the top surface of the transducer. The system includes a detector for detecting when the lapping tool contacts the lapping spacer. | 05-07-2009 |
20090190964 | SMART DONOR ROLLS USING INDIVIDUALLY ADDRESSABLE PIEZOELECTRIC ACTUATORS - Exemplary embodiments provide a roll member that includes one or more piezoelectric tape and methods for making and using the roll member. The piezoelectric tape can be flexible and include a plurality of piezoelectric elements configured in a manner that the piezoelectric elements can be addressed individually or as groups with various numbers of elements in each group. In an exemplary embodiment, the disclosed roll member can be used as a donor roll for a development system of an electrophotographic printing machine to create controlled and desired toner powder cloud for high quality image development, such as an image on image development in a hybrid scavengeless development (HSD) system. | 07-30-2009 |
20090190969 | DIRECT IMAGING SYSTEM WITH ADDRESSABLE ACTUATORS ON A DEVELOPMENT BELT - Exemplary embodiments provide a direct imaging system and methods for direct marking an image using the system. The disclosed direct imaging system can eliminate the creation of a latent image and can be used in an electrophotographic machine and related processes. Specifically, the direct imaging system can include a direct marking substrate (e.g., a printing substrate) and a development belt member closely spaced from the direct marking substrate. In one embodiment, the development belt member can include a plurality of actuator cells with each actuator cell controllably addressable to eject one or more toner particles adhered thereto. The ejected toner particles can transit the space between the donor belt member and the direct marking substrate, and directly marking onto the direct marking substrate forming an image. | 07-30-2009 |
20100007939 | METHOD OF PROJECTING IMAGE WITH TUNABLE INDIVIDUALLY-ADDRESSABLE FABRY-PEROT FILTERS - A projection system includes a display apparatus comprising a plurality of tunable Fabry-Perot filters, each of the filters being configured for shifting between a state in which the filter transmits radiation in a bandwidth in the visible range of the electromagnetic spectrum and a state in which the filter transmits radiation in a bandwidth outside the visible range of the electromagnetic spectrum. An illuminator provides light to the plurality of Fabry-Perot filters. A control system receives image data and controls the display apparatus to project an image onto an associated display surface. The control system includes a modulator which provides wavelength modulation signals to the plurality of Fabry-Perot filters to modulate a color of pixels in the image and causes selected ones of the Fabry-Perot filters to shift into the bandwidth outside the visible range to modulate the brightness of pixels in the image. | 01-14-2010 |
20100040829 | PROTECTIVE COATINGS FOR SOLID INKJET APPLICATIONS - This disclosure provides an aperture plate coated with a composition comprising a fluorinated compound and an organic compound selected from the group consisting of a urea, an isocyanate and a melamine. This disclosure also provides a process of applying a coating composition to an aperture plate, comprising adding a fluorinated compound, an organic compound selected from the group consisting of a urea, an isocyanate and a melamine, and an optional catalyst together in a solvent to form a coating composition, applying the coating composition to a base film, and curing the base film. This disclosure also describes replacing the aperture plate with polyimide film, where the polyimide film is coated with the above-described coating composition before a laser cutting process. | 02-18-2010 |
20100103224 | TRANSDUCER INTERCONNECT WITH CONDUCTIVE FILMS - An electronic device has an electronic signal source electrically connected to a signal routing circuit, an electrically activated transducer to receive electronic signals through the signal routing circuit, and an anisotropic conductive film to provide electrical continuity between the signal routing circuit and the transducer, the anisotropic conductive film having material removed adjacent the transducer to reduce mechanical loading of the transducer. A print head has a jet stack including an aperture plate having apertures arranged to allow passage of ink stored in the jet stack, a diaphragm arranged adjacent the jet stack so as to apply pressure on the ink stored in the jet stack, a transducer arranged to cause the diaphragm to deflect when activated, an anisotropic conductive film having material removed adjacent the transducer to reduce mechanical loading of the transducer, and an electrical interconnect formed from the anisotropic conductive film arranged to electrically couple the transducer to a signal routing circuit. A method includes patterning an anisotropic conductive film to form an array of openings or recesses, bonding the patterned anisotropic conductive film to a transducer side of a transducer array such that openings or recesses in the anisotropic conducting film are arranged adjacent each transducer so as to not contact the transducer in the region of maximum deflection, and bonding a signal carrying circuit array to a circuit side of the transducer array using the patterned anisotropic conductive film. | 04-29-2010 |
20100149262 | PROTECTIVE COATINGS FOR SOLID INKJET APPLICATIONS - An aperture plate coated with a composition including a first monomer, a second monomer, a fluorinated compound, such as fluorosilane, fluoroalkyl amide, fluorinated ether and the like, and a photoinitiator, where the first and second monomer are different. A process of coating an aperture plate includes applying the compositions to a base film, such as a polyimide film, and curing the compositions on the base film. | 06-17-2010 |
20100239967 | OVERCOAT LAYER COMPRISING METAL OXIDES - The presently disclosed embodiments are directed generally to an improved electrostatographic imaging member in which the overcoat layer is inorganic and based on the incorporation of metal oxides, such as aluminum oxide, in specific amounts. The imaging members having such an overcoat layer exhibit improved wear resistance and life extension without any adverse impacts on performance. | 09-23-2010 |
20110102492 | Solid Ink Jet Printhead Having a Polymer Layer and Processes Therefor - A printhead assembly includes a plurality of functional plates bonded together in a stack by polymeric adhesive(s). The surfaces of the functional plates that contact the polymeric adhesives are subjected to a coating process that includes providing a coating of an adhesion promoter, namely polydopamine, prior to application of the adhesive. The adhesive may be a crosslinkable acrylic adhesive or a thermoplastic polyimide. The polydopamine coating is applied by immersing the functional plate in a buffered dopamine solution for a period sufficient to produce a coating having a pre-determined thickness. The thickness of the coating is controlled by submerging the functional plate in the buffered dopamine solution while the pH value of the dopamine solution is maintained at a value sufficient for polymerization of the dopamine during that time period, and then transferring the plates to a solution having a pH value that is insufficient to sustain the polymerization reaction. | 05-05-2011 |
20110141203 | Inkjet Ejector Having an Improved Filter - A manifold assembly has been constructed that filters ink before the ink enters an inkjet ejector in an inkjet print head. The manifold assembly includes an adhesive layer having openings, an ink manifold layer having a plurality of openings, the openings in the adhesive layer being aligned with the openings in the ink manifold layer, and a polymer layer having a plurality of filter areas, the filter areas being aligned with the openings in the ink manifold layer and the openings in the adhesive layer, the adhesive layer being interposed between the polymer layer and the ink manifold layer. | 06-16-2011 |
20110141204 | Print Head Having a Polymer Layer to Facilitate Assembly of the Print Head - A method for assembling an inkjet jet print head enables piezoelectric transducers to be bonded to an inkjet ejector without closing inlets to a pressure chamber within the inkjet ejector. The method includes bonding a polymer layer to a diaphragm layer having a plurality of openings, bonding piezoelectric transducers to the diaphragm layer with a thermoset adhesive, placing thermoset polymer in areas between the piezoelectric transducers on the diaphragm layer, and drilling inlets through the thermoset polymer and the diaphragm at the openings in the diaphragm. | 06-16-2011 |
20110141205 | Method of Removing Thermoset Polymer From Piezoelectric Transducers in a Print Head - A method for mounting a piezoelectric transducer layer to a diaphragm layer exposes an electrode for each piezoelectric transducer after thermoset polymer filling the interstitial space between the piezoelectric transducers has been cured. The method includes bonding a polymer layer to a diaphragm layer having a plurality of openings, bonding piezoelectric transducers to the diaphragm layer, filling areas between the piezoelectric transducers on the diaphragm layer with thermoset polymer, and removing the thermoset polymer from the piezoelectric transducers with a laser to expose a metal electrode on each piezoelectric transducer. | 06-16-2011 |
20110148994 | Print Head Having a Polymer Aperture Plate and Method for Assembling a Print Head - A method for bonding a polymer layer to an outlet plate for an inkjet print head has been developed that enables the polymer layer to be attached to the outlet plate with little or no bowing of the polymer layer. The method includes aligning recesses in a bonding plate with channels in an outlet plate, interposing a polymer layer between the bonding plate and the outlet plate, and pressing the bonding plate against the polymer layer to bond the polymer layer to the outlet plate. | 06-23-2011 |
20110151374 | METHOD AND APPARATUS OF RAPID CONTINUOUS DROP FORMATION PROCESS TO PRODUCE CHEMICAL TONER AND NANO-COMPOSITE PARTICLES - A process for making particles is provided. In embodiments, a suitable process includes a mixing tank for mixing a plurality of droplets dispersed within a liquid media. The process further includes a drop ejector controlling unit in operable communication with a drop ejector array for launching a plurality of droplets, the plurality of droplets including the plurality of particles, and an outlet port for receiving the plurality of droplets. | 06-23-2011 |
20110151375 | METHOD AND APPARATUS OF RAPID CONTINUOUS PROCESS TO PRODUCE CHEMICAL TONER AND NANO-COMPOSITE PARTICLES - A process for making particles is provided. In embodiments, a suitable process includes a mixing tank for mixing a plurality of particles dispersed within a liquid media and a vane unit for applying a swirling effect to the plurality of droplets received from the mixing tank through a spray nozzle. The vane unit is in operable communication with a spray nozzle for launching a plurality of droplets, the plurality of droplets including different combinations of the plurality of particles. The process further includes a plurality of outlet ports, where each of a first set of outlet ports includes a filter and of the other outlet port is filterless. | 06-23-2011 |
20110298203 | DOCUMENT AUTHENTICATION ENHANCEMENT PROCESSES - Disclosed are anti-counterfeiting methods which use a fiduciary marker encoded with the location of a hidden security feature. Documents produced by the methods, and methods for verifying authenticity of documents produced by the methods, are also disclosed. | 12-08-2011 |
20120009099 | MICROFLUIDIC DEVICES - Microfluidic devices are prepared by providing a substrate material having a solid adhesive thin sheet, printing solid ink on the substrate using a conventional printer, selectively etching the substrate using a wax masking layer to obtain a desired pattern, removing the masking layer from the substrate, aligning and bonding together the pattern of the substrate to a pattern of a second substrate to form a layer of substrates, and curing the layer of substrates to result in a three-dimensional microfluidic device. | 01-12-2012 |
20120009665 | METHODS OF PRODUCING MULTI-LAYERED MICROFLUIDIC DEVICES - Microfluidic devices are prepared by providing a substrate material having a solid adhesive thin sheet, printing solid ink on the substrate using a conventional printer, selectively etching the substrate using a wax masking layer to obtain a desired pattern, removing the masking layer from the substrate, aligning and bonding together the pattern of the substrate to a pattern of a second substrate to form a layer of substrates, and curing the layer of substrates to result in a three-dimensional microfluidic device. | 01-12-2012 |
20120013691 | MATERIALS AND METHODS TO PRODUCE DESIRED IMAGE DRUM SURFACE TOPOGRAPHY FOR SOLID INK JET - Exemplary embodiments provide an aluminum image drum and method of its formation such that the aluminum image drum can have a surface texture to provide desirable surface oil consumption and high print quality for solid ink jet marking systems. | 01-19-2012 |
20120033008 | ACIDIC GROUP-CONTAINING SOLID INKS - A microfluidic device includes a first substrate, and a phase change ink deposited on a surface of the first substrate. The phase change ink includes an ink vehicle including a polymeric material having one or more acidic groups, and an optional colorant, wherein the phase change ink is solid at room temperature but is liquid at a jetting temperature of from about 60 to about 150° C., and an acidic group mass percentage, measured as a total mass of acid groups to an entire weight of the ink, is from about 1% to about 35%. | 02-09-2012 |
20120033024 | HYDROXL GROUP-CONTAINING SOLID INKS - A microfluidic device includes a first substrate, and a phase change ink deposited on a surface of the first substrate. The phase change ink includes an ink vehicle including a polymeric material having one or more hydroxyl groups, and an optional colorant, wherein the phase change ink is solid at room temperature but is liquid at a jetting temperature of from about 60 to about 150° C., and a hydroxyl group mass percentage, measured as a total mass of hydroxyl groups to an entire weight of the ink, is from about 1% to about 35%. | 02-09-2012 |
20120035081 | NON-POLAR SOLID INKS FOR BIOMEDICAL APPLICATIONS - A microfluidic device includes a first substrate, and a phase change ink deposited on a surface of the first substrate. The phase change ink includes a non-polar polymeric material and an optional colorant, wherein the phase change ink is solid at room temperature but is liquid at a jetting temperature of from about 60 to about 150° C., and a water contact angle on the deposited phase change ink is from 90° to about 175°. | 02-09-2012 |
20120155919 | FUSER MEMBER AND METHOD OF MANUFACTURE - There is described a fuser roller including a surface layer of anodized aluminum oxide impregnated with a fluorine containing sealant. There is also described the method for producing the fuser member. | 06-21-2012 |
20120186739 | Method of Removing Thermoset Polymer From Piezoelectric Transducers in a Print Head - A method for mounting a piezoelectric transducer layer to a diaphragm layer exposes an electrode for each piezoelectric transducer after thermoset polymer filling the interstitial space between the piezoelectric transducers has been cured. The method includes bonding a polymer layer to a diaphragm layer having a plurality of openings, bonding piezoelectric transducers to the diaphragm layer, filling areas between the piezoelectric transducers on the diaphragm layer with thermoset polymer, and removing the thermoset polymer from the piezoelectric transducers with a laser to expose a metal electrode on each piezoelectric transducer. | 07-26-2012 |
20120194615 | Inkjet Ejector Having an Improved Filter - A manifold assembly has been constructed that filters ink before the ink enters an inkjet ejector in an inkjet print head. The manifold assembly includes an adhesive layer having openings, an ink manifold layer having a plurality of openings, the openings in the adhesive layer being aligned with the openings in the ink manifold layer, and a polymer layer having a plurality of filter areas, the filter areas being aligned with the openings in the ink manifold layer and the openings in the adhesive layer, the adhesive layer being interposed between the polymer layer and the ink manifold layer. | 08-02-2012 |
20120199666 | TRANSDUCER INTERCONNECT WITH CONDUCTIVE FILMS - An electronic device has an electronic signal source electrically connected to a signal routing circuit, an electrically activated transducer to receive electronic signals through the signal routing circuit, and an anisotropic conductive film to provide electrical continuity between the signal routing circuit and the transducer, the anisotropic conductive film having material removed adjacent the transducer to reduce mechanical loading of the transducer. | 08-09-2012 |
20130062007 | Method For Facilitating Assembly Of A Printhead Having A Polymer Layer - A method for assembling an inkjet jet print head enables piezoelectric transducers to be bonded to an inkjet ejector without closing inlets to a pressure chamber within the inkjet ejector. The method includes bonding a polymer layer to a diaphragm layer having a plurality of openings, bonding piezoelectric transducers to the diaphragm layer with a thermoset adhesive, placing thermoset polymer in areas between the piezoelectric transducers on the diaphragm layer, and drilling inlets through the thermoset polymer and the diaphragm at the openings in the diaphragm. | 03-14-2013 |
20130127957 | Mixing Device and Mixing Method - A mixing method and device are disclosed. The mixing method includes providing a drop generating device including a first drop ejector, a second drop ejector and a collector. The mixing method also includes ejecting a plurality of drops of a first reactant from the first drop ejector and ejecting a plurality of drops of a second reactant from the second drop ejector and collecting the drops with the collector. | 05-23-2013 |
20130128338 | METHOD OF FORMING A FABRY-PEROT TUNABLE FILTER - A method of forming a tunable Fabry-Perot filter includes forming a first reflective layer on a surface of a substrate, forming a sacrificial layer over the first reflective layer, forming a second reflective layer over the sacrificial layer, defining vias through the sacrificial layer, forming a support body over the sacrificial layer which extends into the vias and removing the sacrificial layer to define a gap intermediate the first and second reflective layers. | 05-23-2013 |