| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 347045000 | Surface treated | 63 |
| 20130033545 | LIQUID DISCHARGING NOZZLE AND METHOD FOR RECOVERING WATER-REPELLENT LAYER OF THE LIQUID DISCHARGING NOZZLE - A liquid discharging nozzle of the present invention includes (i) a liquid reservoir for reserving a discharging liquid and (ii) a discharging tube connected to a bottom part of the liquid reservoir. A water-repellent layer is provided on an inner surface of the discharging tube, on an inner surface of the discharging tube, and on an inner surface of the liquid reservoir, and is a fluorinated water-repellent layer. An aluminum oxide layer and a silicon oxide layer are used as foundation layers of the fluorinated water-repellent layer. The aluminum oxide layer, the silicon oxide layer, and the fluorinated water-repellent layer, which are stacked together, have a combined thickness of not more than 25 nm. The fluorinated water-repellent layer alone has a thickness of 1 nm to 4 nm. | 02-07-2013 |
| 20130027470 | LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - The liquid ejecting head includes a nozzle plate in which nozzle holes which are through holes are formed, and ejects liquid from the nozzle holes. The nozzle hole has a first nozzle portion which is opened to an ejection surface to which liquid is ejected from nozzles of the nozzle plate, and a second nozzle portion which communicates with the first nozzle portion, and is opened to a surface opposite to the ejection surface of the nozzle plate, and of which the opening diameter is larger than the opening diameter in the ejection surface of the first nozzle portion. The first nozzle portion is covered with a liquid repellent film which has higher liquid repellency than a base material of the nozzle plate and an inner wall of the second nozzle portion is provided with a region which has lower liquid repellency than the liquid repellent film. | 01-31-2013 |
| 20130027471 | Manufacture of a Print Head - Manufacturing method for an inkjet print head, comprising forming a nozzle layer onto a substrate, depositing an LSE (low surface energy) coating onto the nozzle layer, depositing a sacrificial film onto the LSE coating, post processing the substrate, and removing the sacrificial film from the LSE coating, the LSE coating having a water contact angle of at least 50° after removal of the sacrificial film. | 01-31-2013 |
| 20120224004 | TOUCH-FREE NOZZLE SEALANT REMOVAL - A method for automatic removal of a sealant member from a nozzle plate that includes applying a sealant member to a surface of the nozzle plate, attaching the sealant member with a pull tab, one end of the pull tab being attached to a maintenance sled of a maintenance mechanism at a first position, the maintenance sled moves from a first position to a second position thereby removing the sealant member at a 180 degree angle and with a speed of about 10 mm/sec. | 09-06-2012 |
| 20130063525 | PRINTHEAD FOR INKJET PRINTING DEVICE - An inkjet printhead is provided for a digitally controlled inkjet printing apparatus wherein the inkjet printhead is comprised of a material layer and a drop formation mechanism positioned in or on the material layer, that is substantially improved in chemical resistance and thermally stability. A chemically resistant and thermally stable multilayer coating is provided onto and in contact with the inkjet printhead, wherein the multilayer coating includes one or more thin film layers comprised primarily of hafnium oxide or zirconium oxide and one or more thin film layers comprised primarily of tantalum oxide, the multilayer coating being located on the material layer. The corrosion resistant film of the invention is particularly beneficial because it can be formed on the printhead using atomic layer deposition film forming methods that produce conformal films that cover complex geometries, thereby enabling the corrosion resistant film to be formed on all surfaces of the printhead that come in contact with inks or other fluids employed in the printing system. | 03-14-2013 |
| 20080297563 | NOZZLE PLATE FOR INKJET HEAD, METHOD FOR MANUFACTURING THE SAME, AND TREATMENT LIQUID FOR INKJET HEAD - A nozzle plate for an inkjet head including a substrate and ink ejecting holes formed in the substrate. An ink-repellent layer is formed on an ink ejecting side surface of the nozzle plate, and portions of the ink-repellant layer around the ink ejecting holes are selectively removed so that portions of the nozzle plate around the ink ejecting holes are exposed. Also, a method of producing a nozzle plate for an inkjet head is provided that includes preparing a nozzle plate which includes a substrate and ink ejecting holes formed in the substrate and has an ink-repellent layer formed on an ink ejecting side surface of the nozzle plate, and selectively removing portions of the ink-repellant layer around the ink ejecting holes to expose portions of the nozzle plate around the ink ejecting holes. | 12-04-2008 |
| 20090237453 | ORIFICE PLATE FOR AN INK-JET PRINT-HEAD AND A METHOD FOR MANUFACTURING THE ORIFICE PLATE - An orifice plate for an ink jet print-head for ejecting drops of an ink, wherein the orifice plate includes an outer surface, which has a wettability with the ink, and at least one orifice arranged in the outer surface, said orifice being configured for ejecting ink drops, each orifice having an edge, the edge defining a transition boundary between the orifice and the outer surface, wherein the wettability of the outer surface is poor near the edge of the at least one orifice and the wettability increases with increasing distance from the edge of the orifice, the increasing wettability with the increasing distance from the edge of the orifice providing a driving force for moving residual ink drops away from the edge towards a wettable region, thereby reducing the risk of disturbing the trajectories of subsequent ejected ink drops. | 09-24-2009 |
| 20130120499 | Siloxane-Etherimide Copolymer Printhead Coatings - Disclosed is an ink jet printhead comprising a plurality of channels, wherein the channels are capable of being filled with ink from an ink supply and wherein the channels terminate in nozzles on one surface of the printhead, the surface being coated with a coating composition comprising a siloxane-etherimide copolymer and a fluorinated nonionic surfactant. | 05-16-2013 |
| 20130120498 | Fluorinated Poly(amide-imide) Copolymer Printhead Coatings - Disclosed is an ink jet printhead comprising a plurality of channels, wherein the channels are capable of being filled with ink from an ink supply and wherein the channels terminate in nozzles on one surface of the printhead, the surface being coated with a coating composition comprising a fluorinated poly(amide-imide) copolymer. | 05-16-2013 |
| 20100238236 | Lyophobic Treatment Method, Nozzle Plate, Inkjet Head And Electronic Device - A lyophobic treatment method for imparting lyophobic properties to a surface of a base material having a hole section, includes: a lyophobic film forming step of forming a lyophobic film on the surface and inner wall faces of the hole section of the base material; a protective member forming step of forming a protective member on the lyophobic film on the surface of the base material; a lyophobic film removal step of removing the lyophobic film on the inner wall faces of the hole section of the base material; a protective member removal step of removing the protective member on the lyophobic film on the surface of the base material; and an ion injection step of injecting ions exhibiting lyophobic properties into at least a peripheral portion of an opening of the hole section in the surface of the base material. | 09-23-2010 |
| 20080239000 | NOZZLE PLATE, INK EJECTION HEAD, AND IMAGE FORMING APPARATUS - A nozzle plate includes: a plate substrate in which a nozzle is formed, ink being ejected through an ejection port of the nozzle in the plate substrate; and a p-type doped layer which forms a whole perimeter of an edge portion defining an inner perimeter of the ejection port of the nozzle in the plate substrate. | 10-02-2008 |
| 20110018936 | PRINTHEAD HAVING POLYMER INCORPORATING NANOPARTICLES COATED ON INK EJECTION FACE - A printhead having an ink ejection face, wherein at least part of the ink ejection face is coated with a polymeric material. The polymeric material is comprised of a polymerized siloxane incorporating nanoparticles. The printhead may be compatible with various printhead maintenance operations, ink characteristics and inkjet nozzle types. | 01-27-2011 |
| 20100007698 | LIQUID EJECTION HEAD AND PROCESS FOR PRODUCING THE SAME - An aspect of the present invention is a process for producing a liquid ejection head including an ejection orifice member provided with ejection orifices for ejecting liquid. The process includes supplying to a surface of a base material for forming the ejection orifice member a mixture of a first composite for imparting a hydrophobic characteristic to the surface and a second composite being able to exhibit a hydrophilic characteristic by being irradiated with light; imparting a hydrophobic characteristic to the entire or a part of the surface by utilizing the first composite; and then irradiating the second composite with light in a partial region of the surface for imparting a hydrophilic characteristic to the region irradiated with the light. | 01-14-2010 |
| 20080278540 | ATMOSPHEREIC PLASMA INKJET PRINTING APPARATUSES AND METHODS FOR FABRICATING COLOR FILTER USING THE SAME - Atmospheric plasma inkjet printing apparatus and methods for fabricating color filters using the same. The atmosphere plasma inkjet printing apparatus includes a nozzle plate having a first column of nozzles and a second column of nozzles. An inkjet printhead module corresponds to the first column of nozzles. An atmospheric plasma module is corresponds to the second column of nozzles. | 11-13-2008 |
| 20110298868 | INKJET PRINTHEAD HAVING HYDROPHILIC INK PATHWAYS - An inkjet printhead comprising a hydrophilic ink pathway. The surfaces of the ink pathway comprise a layer of an alkoxylated polyethyleneimine. | 12-08-2011 |
| 20110074880 | Liquid-Repellent Film Forming Method, Inkjet Head and Inkjet Recording Appparatus - The method forms a liquid-repellent film on a surface of a nozzle plate having nozzle apertures through which droplets of liquid are ejected. The method includes: a termination process step of carrying out a hydrogen termination process or a halogen termination process on a surface of a nozzle plate, at least a portion of the surface of the nozzle plate being made of a material containing silicon; and a liquid-repellent film formation step of forming a liquid-repellent film on the surface of the nozzle plate after the termination process step by bringing a liquid-repellent film raw material into contact with the surface of the nozzle plate while applying energy to the surface. Each molecule constituting the liquid-repellent film raw material has an unsaturated carbon bond at an end and has a liquid-repellent functional group. The liquid-repellent film is bonded to the surface of the nozzle plate through silicon-carbon bonds. | 03-31-2011 |
| 20110298869 | METHOD OF PROVIDING PRINTHEAD ASSEMBLY HAVING COMPLEMENTARY HYDROPHILIC AND HYDROPHOBIC SURFACES - A method of providing a printhead assembly having a hydrophilic ink pathway and a hydrophobic ink ejection face. The method includes the steps of: providing a printhead assembly comprising a printhead attached to an ink supply manifold, the printhead comprising a nozzle plate having a hydrophobic coating and a protective metal film disposed on the hydrophobic coating; treating surfaces of an ink pathway in the printhead assembly with a solution comprising an alkoxylated polyethyleneimine; drying the surfaces; and removing the protective metal film so as to reveal the hydrophobic coating. | 12-08-2011 |
| 20110298866 | LOW-ADHESION COATING TO ELIMINATE DAMAGE DURING FREEZE/THAW OF MEMSJET PRINTHEADS - Exemplary embodiments provide materials, systems and methods for ink jet printhead, wherein a low-adhesion coating can be applied to at least one surface portion of an ink chamber within the printhead to reduce or eliminate actuator membrane damage during ink freeze/thaw cycles. | 12-08-2011 |
| 20110298867 | METHOD FOR HYDROPHILIZING SURFACES OF INK PATHWAY - A method of hydrophilizing surfaces of an ink pathway configured for supplying ink to nozzles in an inkjet printhead. The method includes the steps of: treating the surfaces of the ink pathway with a solution comprising an alkoxylated polyethyleneimine; and drying the surfaces. | 12-08-2011 |
| 20120098889 | METHOD OF FORMING WATER REPELLING FILM, WATER REPELLING FILM, AND NOZZLE PLATE OF INKJET HEAD - A method of forming a water repelling film, includes: a thin film forming step of forming, on a base member, a thin film mainly having Si—O bonds and having hydrophobic substituent groups directly bonded to silicon, using a starting material which is a gas at normal temperature and atmospheric pressure; an irradiation step of irradiating the thin film obtained in the thin film forming step with excitation light in such a manner that the hydrophobic substituent groups are left and OH groups are present in the thin film; and an application step of applying a silane coupling agent onto the thin film obtained in the irradiation step. | 04-26-2012 |
| 20080198198 | Passivation of Printhead Assemblies and Components Therefor - A printhead assembly comprising the printhead and filters intended for use with the printhead is passivated by passing a gaseous coating such as Parylene through the assembly. In this way dirt particles created during manufacture of the printhead are encapsulated and thus prevented from blocking the nozzles. The printhead assembly is also prevented from interacting physically or chemically with ink flowing through the printhead. | 08-21-2008 |
| 20080309717 | NOZZLE PLATE AND THE METHOD OF MANUFACTURING THE SAME - A nozzle plate has a nozzle hole for ejecting liquid, which penetrates in a thickness direction of the nozzle plate. An ejection face of the nozzle plate having an ejection opening of the nozzle hole is covered with a water-repellent coat having a through hole communicating with the nozzle hole. The through hole has a straight portion and a diameter expansion portion. The straight portion is contiguous to the nozzle hole and having the same diameter as the ejection opening. The diameter expansion portion is provided to interpose the straight portion with the nozzle hole and gradually expanding so that a part thereof farther from the straight portion has a larger diameter than a part thereof closer to the straight portion. | 12-18-2008 |
| 20090189952 | APPARATUS FOR JETTING DROPLETS USING SUPER-HYDROPHOBIC NOZZLE - Disclosed is an apparatus for jetting droplets using a super-hydrophobic nozzle, including a body having a chamber formed in the body to receive a predetermined amount of fluid containing liquid and particles and a nozzle formed in the side face of the body while communicating with the chamber to jet the fluid, and an actuator for generating an electric field for jetting the fluid through the nozzle, the side face of the body being of super-hydrophobic, and the actuator including an electrode located in the chamber or the nozzle or deposited on the wall surface thereof, an electrode plate spaced apart from the side face of the body at a predetermined distance with a jetting hole at a position corresponding to the nozzle, a power supply portion for applying voltage between the electrode and the electrode plate, and a control portion for controlling the power supply portion, thereby effectively realizing the initial formation of the meniscus of the fluid upon jetting through the super-hydrophobic nozzle, and increasing stability and efficiency of the jetting even upon repeated jetting. | 07-30-2009 |
| 20100079546 | DROPLET JETTING HEAD, METHOD OF MANUFACTURING DROPLET JETTING HEAD, AND DROPLET JETTING APPARATUS EQUIPPED WITH DROPLET JETTING HEAD - A droplet jetting head that is obtained by bonding a first substrate | 04-01-2010 |
| 20090002445 | INKJET RECORDING HEAD - An inkjet recording head includes a recording-element substrate having arranged therein multiple sets of nozzles that discharge ink, energy-generating elements that generate energy used for discharging the ink, and supply ports that supply the ink to the nozzles; and a sealant disposed around the recording-element substrate. The supply ports include a first supply port disposed near a first edge of the recording-element substrate and a second supply port disposed near a second edge of the recording-element substrate, the second edge being opposite to the first edge as viewed in the arrangement direction of the multiple sets. As viewed in the arrangement direction, a distance between the second edge and the second supply port is shorter than a distance between the first edge and the first supply port, and a volume of the sealant near the second edge is smaller than a volume of the sealant near the first edge. | 01-01-2009 |
| 20080309716 | Method of Manufacturing Nozzle Plate - A method of manufacturing a nozzle plate has steps of: (e) covering a surface of a plate with a light-curable resin; (f) covering the resin with a light-shielding member having an annular light-shielding region which encloses an opening of a nozzle hole therein in a plan view; (g) curing a portion of the resin not overlapping the light-shielding region by applying light after the step of (f); (h) exposing the resin by removing the light-shielding member after the step of (g); (i) eliminating an uncured portion of the resin after the step of (h); (j) forming a water-repellent coat on surfaces of the plate using the cured resins as masks, after the steps of (d) and (i); and (k) eliminating the cured resins after the step of (j). | 12-18-2008 |
| 20080211870 | LIQUID EJECTING HEAD UNIT AND METHOD OF MANUFACTURING LIQUID EJECTING HEAD UNIT - A method of manufacturing a liquid ejecting head unit which includes a liquid ejecting head having a liquid ejection surface through which a nozzle opening is opened to eject a liquid and a support member adhered onto the liquid ejection surface of the liquid ejecting head by an adhesive, the method including: forming a lyophobic film on the liquid ejection surface; forming a non-lyophobic area having no lyophobic film in an area in which the liquid ejection surface formed with the lyophobic film is adhered to the support member; performing primer processing of coating a primer liquid onto the non-lyophobic area; and adhering the support member to the non-lyophobic area of the liquid ejection surface using an adhesive. | 09-04-2008 |
| 20120086754 | LIQUID EJECTION HEAD AND METHOD OF MANUFACTURING THE SAME - A liquid ejection head has recessed portions are formed in an ejection face, such that a distance d | 04-12-2012 |
| 20120268524 | INK JET PRINT HEAD FRONT FACE HAVING A TEXTURED SUPEROLEOPHOBIC SURFACE AND METHODS FOR MAKING THE SAME - An ink jet print head front face or nozzle plate having a textured superoleophobic surface that prevents undesirable drooling, wetting and/or adhesion of the ink on the print head. The textured surface includes a rim formed around the nozzle. Also described are methods for forming the textured superoleophobic ink jet print head front face or nozzle plate from silicon having the textured, oleophobic surface. | 10-25-2012 |
| 20080278541 | LIQUID EJECTING HEAD UNIT AND LIQUID EJECTING APPARATUS - The invention provides a liquid ejecting head unit that includes: a liquid ejecting head that has pressure generation chambers and pressure generators, the pressure generation chambers being in communication with nozzle openings from which liquid is ejected, the pressure generator causing a pressure change in the pressure generation chamber; a fixing member that is adhered to the liquid ejecting surface of the liquid ejecting head, the liquid ejecting surface having the nozzle openings formed therein, the fixing member having an exposure opening portion that exposes the nozzle openings; and a recording portion that has convexity and concavity so as to record head information, the recording portion being provided at a region of the liquid ejecting surface at which the fixing member is adhered. | 11-13-2008 |
| 20090128602 | INK JET RECORDING HEAD, INK JET CARTRIDGE, AND METHOD FOR MANUFACTURING INK JET RECORDING HEAD - An ink jet recording head having an array of ink ejection outlets in an ejection outlet forming surface on which a protection tape is stuck in transportation, wherein the ejection outlet forming surface has an outside area which is outside of each of opposite ends of the array with respect to a direction of the array, and the outside area has a peel resistance, provided by surface modification, which resistance is higher than in another portion of the ejection outlet forming surface. | 05-21-2009 |
| 20090091600 | MICRO-FLUID EJECTION HEAD AND STRESS RELIEVED ORIFICE PLATE THEREFOR - A micro-fluid ejection head and methods for improving the fabrication and operation of the micro-fluid ejection head. The ejection head includes a photoimaged thick film layer attached to a substrate containing fluid ejection actuators. An orifice plate is laminated to the thick film layer. The orifice plate has a plurality of concentric orifices therein and is derived from a first photoresist material that is heated to a temperature sufficient to relieve film stresses in the photoresist material prior to exposing and developing the orifices in the orifice plate. | 04-09-2009 |
| 20110228004 | METHOD OF HYDROPHOBIZING EJECTION FACE OF PRINTHEAD - A method of hydrophobizing an ejection face of a printhead is provided which avoids hydrophobizing fluid distribution structures of the printhead. The method involves (a) filling fluid distribution structures of the printhead exposed to the ejection face with a liquid, and (b) depositing a hydrophobizing material onto the ejection face of the printhead, provided that step (a) is performed prior to step (b). | 09-22-2011 |
| 20090122111 | METHOD FOR MANUFACTURING NOZZLE PLATE - A method for manufacturing a nozzle plate includes providing a substrate having a nozzle surface in which a plurality of nozzle holes jetting a liquid is formed, and on which a water repellent film is formed, placing a plurality of droplets of a liquid resin around each of the nozzle holes, and curing the liquid droplets to form projections of a constant height around the nozzle holes. By placing the plurality of droplets of the liquid resin to surrounding area of each of the nozzle holes, and curing the droplets, it is possible to form the projections which prevent a recording medium from making contact with the nozzle surface. | 05-14-2009 |
| 20090115817 | DROPLET DISCHARGE HEAD, MANUFACTURING METHOD THEREOF, AND DROPLET DISCHARGE APPARATUS - A droplet discharge head includes a nozzle substrate having a nozzle opening for discharging a liquid as a droplet; a flow path substrate having a flow path for the liquid, the flow path communicating with the nozzle opening; and a diaphragm constituting a wall surface of the flow path. The nozzle substrate, the flow path substrate, and the diaphragm are bonded together in layers using an adhesive, and a liquid-resistant film resistant to the liquid is continuously formed on surfaces of the nozzle substrate, the flow path substrate, and the diaphragm, the surfaces being in contact with the liquid. | 05-07-2009 |
| 20090102886 | AMBIENT PLASMA TREATMENT OF PRINTER COMPONENTS - A method of treating a printer component, a printhead, and a printer are provided. The method includes providing an electrode proximate to the printer component to be treated; introducing a plasma treatment gas in an area proximate to the printer component to be treated; and treating the printer component by applying power to the electrode thereby producing a micro-scale plasma at near atmospheric pressure, the micro-scale plasma acting on the printer component. | 04-23-2009 |
| 20120242749 | COATINGS FOR INK JET PRINT HEAD FACE - A novel composition for use as a print head face plate coating. In particular, the coating comprises siloxyfluorocarbon (SFC), which is composed of networked precursors containing reactive siloxane groups attached to fluorocarbon chains. The present SFC coatings can be used to produce a surface whereby solid ink and ultraviolet (UV) curable inks do not adhere when applied at elevated temperatures and over an extended period of time. The advantages of the present coating are fewer print head related defects, and longer front face life. | 09-27-2012 |
| 20100302312 | LIQUID DROPLET EJECTION HEAD AND LIQUID DROPLET EJECTION APPARATUS - A liquid droplet ejection head includes: a substrate, a sealing plate and a nozzle plate therebetween that define an ejection liquid storage chamber. An activated bonding film between the substrate and the nozzle plate or the sealing plate contains a polyester-modified silicone material obtained by a dehydration condensation reaction between a silicone material having a branched polyorganosiloxane backbone having a structural unit represented by (1) at a branched portion, a structural unit represented by (2) or (3) at a linking portion, and a structural unit represented by (4) or (5) at a terminal portion and a polyester resin obtained by an esterification reaction between trimethylolpropane and terephthalic acid: | 12-02-2010 |
| 20110018937 | PRINTHEAD HAVING INK EJECTION FACE COMPLEMENTING INK OR OTHER FEATURES OF PRINTHEAD - An inkjet printhead for ejection of an ejectable fluid. The printhead has an ink ejection face coated with a polymeric material incorporating nanoparticles. The nanoparticles impart predetermined characteristics to the ink ejection face, which complement an inherent property of the ejectable fluid, a printhead maintenance regime associated with the printhead or a type of nozzle actuator. | 01-27-2011 |
| 20110025778 | PRINTHEAD ASSEMBLY WITH PROFILED EXTERIOR SURFACE - A printhead assembly for an inkjet printer is disclosed. The printhead assembly has an elongate printhead chip with a nozzle face defining an array of nozzles. A support structure supports the elongate printhead chip on an external surface thereof. An epoxy resin is also provided adjacent a long side edge of the elongate printhead chip. The epoxy resin is profiled such that the epoxy resin is flush with the nozzle face of the elongate printhead chip. The epoxy resin is thixotropic prior to setting. | 02-03-2011 |
| 20110018938 | PRINTING DEVICE - A printing device ( | 01-27-2011 |
| 20110242216 | LIQUID EJECTION HEAD AND METHOD OF MANUFACTURING THE SAME - A liquid ejection head including: a plate base material; and an actuator; wherein the plate base material has: ejection holes having recessed portions; and an ejection face having ejection openings; wherein the recessed portions include pairs thereof each constituted by two recessed portions located side by side and at least one of which has the ejection openings; wherein, where a shortest line segment of a certain pair is equal to or shorter than that of another pair, an average value of lengths of the respective recessed portions constituting the certain pair is not larger than that of lengths of the respective recessed portions constituting said another pair; and wherein a liquid repellent layer is formed on the bottom portion of the recessed portion having the ejection openings, wherein the liquid repellent layer formed on the bottom portion is a layer having not been removed due to a masking material having entered into the recessed portion and covered the liquid repellent layer. | 10-06-2011 |
| 20110134188 | NOZZLE PLATE, DISCHARGE HEAD, METHOD FOR PRODUCING THE NOZZLE PLATE, METHOD FOR PRODUCING THE DISCHARGE HEAD, AND DISCHARGE DEVICE - A nozzle plate includes: a nozzle plate main body made of metal, the nozzle plate main body having nozzle rows formed of nozzles arranged in parallel and penetrating the nozzle plate main body in a thickness direction, wherein at the outer edge of the nozzles on a droplet discharge surface of the nozzle plate main body, a water-repellent film is provided, and primer treatment is performed on at least part of the periphery of the droplet discharge surface of the nozzle plate main body, the periphery outside the water-repellent film. | 06-09-2011 |
| 20100053269 | LIQUID EJECTION HEAD, IMAGE FORMING APPARATUS EMPLOYING THE LIQUID EJECTION HEAD, AND METHOD OF MANUFACTURING THE LIQUID EJECTION HEAD - A liquid ejection head includes a nozzle formation member having a liquid repellent layer disposed on a droplet ejection face of a nozzle substrate in which one or more nozzle orifices is formed to eject droplets. The liquid repellent layer includes a first sub-layer and a second sub-layer. The first sub-layer contains a higher proportion of low-molecular-weight molecules than the second sub-layer. The second sub-layer contains a higher proportion of high-molecular-weight molecules than the first sub-layer. Both the first sub-layer and the second sub-layer are exposed on a surface of the nozzle formation member. | 03-04-2010 |
| 20110074882 | Method of Forming Organic Film, and Organic Film, Nozzle Plate, Inkjet Head and Electronic Device - The method of forming an organic film, includes: an organic film formation step of forming an organic film on a surface of a base member using a silane coupling agent; and a post-processing step including a water vapor introduction step of holding the base member on which the organic film has been formed in an atmosphere containing at least water vapor, and a dehydration processing step of holding the base member in an atmosphere having a smaller presence of water vapor than the atmosphere in the water vapor introduction step. | 03-31-2011 |
| 20110261112 | NON-WETTING COATING ON A FLUID EJECTOR - A fluid ejector includes a substrate having an exterior surface and an interior surface. A non-wetting coating can cover at least a portion of the exterior surface and can be substantially absent from the flow path. A non-wetting coating can be formed of a molecular aggregation. A precursor of a non-wetting coating may flow into a chamber at a higher temperature higher than the substrate. A non-wetting coating can be over a seed layer. An outer portion of the seed layer can have a higher concentration of water molecules or a greater density than an inner portion. The outer portion can be deposited at a ratio of partial pressure water to partial pressure matrix precursor that is higher than the ratio for the inner portion. An oxygen plasma can be applied to a seed layer on the exterior surface, and the non-wetting coating can be applied on the seed layer. | 10-27-2011 |
| 20110141194 | INKJET INK AND RECORDING UNIT - An inkjet ink contains a pigment, a water-soluble resin having a hydrophobic group, an inclusion compound, and water. The water-soluble resin includes a part adsorbed to the pigment and a part not adsorbed to the pigment. The inclusion compound is cyclodextrin or a cyclodextrin derivative. The mass ratio of the part not adsorbed of the water-soluble resin to the inclusion compound is in the range of 0.30 to 9.00. | 06-16-2011 |
| 20110074881 | Method of Forming Organic Film, and Nozzle Plate, Inkjet Head and Electronic Device - The method of forming an organic film, includes: a pre-processing step including a plasma treatment step of carrying out plasma treatment to a surface of a base member, and an exposure processing step of exposing the surface of the base member that has undergone the plasma treatment, in an atmosphere containing at least water; and an organic film formation step of thereafter forming an organic film on the surface of the base member using a silane coupling agent. | 03-31-2011 |
| 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 |
| 20080204510 | METHOD OF APPLYING INK-REPELLENT FILM AND NOZZLE PLATE PROVIDED WITH INK-REPELLENT FILM - A method of applying an ink-repellent film includes flowing an inert gas to the interior of each of the nozzles in a nozzle plate from the rear surface to the front surface of the nozzle plate; applying a film of an ink-repellent material on the surface of the nozzle plate so as to form a film; and drying the film of the ink-repellent material. | 08-28-2008 |
| 20110018935 | PRINTHEAD HAVING POLYSILSESQUIOXANE COATING ON INK EJECTION FACE - A printhead having an ink ejection face coated with a hydrophobic polymeric material. The polymeric material is comprised of a polysilsesquioxane, such as poly(methylsilsesquioxane) or poly(phenylsilsesquioxane). The printhead is compatible with various printhead maintenance operations requiring contact with the ink ejection face. | 01-27-2011 |
| 20120044298 | THERMALLY STABLE OLEOPHOBIC LOW ADHESION COATING FOR INKJET PRINTHEAD FRONT FACE - A coating for an ink jet printhead front face, wherein the coating comprises a oleophobic low adhesion coating. When the oleophobic low adhesion coating is disposed on an ink jet printhead front face surface, jetted drops of ultra-violet gel ink or jetted drops of solid ink exhibit a contact angle greater than 45° and a low sliding angle of less than about 30°. In embodiments, the oleophobic low adhesion coating is thermally stable wherein the surface contact angle and sliding angle show little degradation after the coating is subjected to high temperatures in a range between 180° and 320° or thereabout and high pressures in a range between 100 psi and 400 psi or thereabout during printhead fabrication and manufacturing. | 02-23-2012 |
| 20120007918 | INKJET RECORDING HEAD, INKJET PRINTER, AND INKJET RECORDING METHOD - According to one embodiment, an inkjet recording head includes an orifice member, a first cover member and a second cover member. The orifice member includes an ejection hole which ejects ink. The first cover member includes a peripheral surface, which surrounds the outer peripheral surface of the orifice member, one end face arranged near the orifice member, and an other end and an ink regulating section formed on the peripheral surface and suppresses movement of ink. The second cover member is arranged to extend to the other end of the peripheral surface of the first cover member. | 01-12-2012 |
| 20120105546 | INKJET HEAD AND METHOD OF MANUFACTURING INKJET HEAD - Provided is an inkjet head, including: a substrate having an energy generating element for generating energy to be used for ejecting liquid; and a liquid flow path forming member, which forms patterns of an ejection orifice for ejecting the liquid and a liquid flow path communicating with the ejection orifice and which has a surface subjected to water-repellent treatment, in which the inkjet head includes, in a surface having the ejection orifice, multiple water-repellent areas subjected to water-repellent treatment, and multiple recesses each having a bottom in the liquid flow path forming member and having a surface not subjected to water-repellent treatment. Also provided is a method of manufacturing an inkjet head. | 05-03-2012 |
| 20120154487 | LOW ADHESION SOL GEL COATINGS WITH HIGH THERMAL STABILITY FOR EASY CLEAN, SELF CLEANING PRINTHEAD FRONT FACE APPLICATIONS - Various embodiments provide oleophobic, low adhesion coatings with high thermal stability and methods of forming and using them in an ink jet printhead, wherein the oleophobic, low adhesion coatings can include a sol-gel cross-linked coating by a self-condensation process of at least a silane-functionalized perfluoropolyether based polymer precursor. | 06-21-2012 |
| 20100245475 | INKJET PRINT HEAD AND METHOD THEREFOR - An inkjet print head is fabricated by, fist, forming an electrode and two layers of a protection film composed of an inorganic insulating film and an organic insulating film over the electrode within a groove of a piezoelectric member, adhering a top board to the piezoelectric member covering the groove to form a pressure chamber, adhering a polyimide plate so as to cover the groove, and then forming a nozzle in the polyimide plate by the excimer laser processing aligning to the pressure chamber. Herein, the excimer laser light penetrates the polyimide plate to form a nozzle, and further proceeds to be emitted on the organic insulating film. Consequently, the part of the organic insulating film irradiated by the laser light is damaged. To prevent the damage of the organic insulating film, the thickness of the inorganic insulating film in the part to which the excimer laser light is emitted is prepared to be 0.5 μm or more. | 09-30-2010 |
| 20100245476 | INK JET HEAD AND ITS MANUFACTURE METHOD - An ink jet head is formed with a nozzle surface having a liquid repellent characteristic. The nozzle surface comprises a condensation product made from a hydrolyzable silane compound having a fluorine containing group and a hydrolyzable silane compound having a cationic polymerizable group. | 09-30-2010 |
| 20110122195 | Coating For An Ink Jet Printhead Front Face - A coating for an ink jet printhead front face, wherein the coating comprises a low adhesion coating, wherein when the low adhesion coating is disposed on an ink jet printhead front face surface, jetted drops of ultra-violet gel ink or jetted drops of solid ink exhibit a low sliding angle with the printhead front face surface, wherein the low sliding angle is less than about 1° to less than about 30°. In embodiments, the low adhesion coating is an oleophobic coating that exhibits a contact angle of greater than about 35° with ultra-violet gel ink or solid ink. | 05-26-2011 |
| 20100328398 | THERMAL INKJET PRINT HEAD WITH SOLVENT RESISTANCE - An inkjet printing system includes a print head in fluid communication with an ink reservoir and having a plurality of orifices and a corresponding plurality of associated ejection chambers. The print head includes a substrate and a barrier layer disposed on the substrate. The barrier layer defines in part a plurality of fluid channels and the plurality of ejection chambers. The barrier layer includes a material selected from epoxy-based photo resist materials and methyl methacrylate-based photo resist materials. An orifice plate is disposed over the substrate. The orifice plate includes the plurality of orifices in fluid communication with the ejection chambers. The orifice plate comprises a material selected from polyimides and nickel. | 12-30-2010 |
| 20100231647 | Lyophobic Treatment Method, Nozzle Plate, Inkjet Head And Electronic Device - A lyophobic treatment method of imparting lyophobic properties to a surface of a base material having hole sections, includes: an organic film formation step of forming an organic film on the surface of the base material and inner wall faces of the hole sections of the base material; a protective member formation step of forming a protective member on the organic film on the surface of the base material; an organic film removal step of removing the organic film on the inner wall faces of the hole sections of the base material; a protective member removal step of removing the protective member on the organic film on the surface of the base material; and a fluorination step of carrying out fluorination processing of the organic film on the surface of the base material. | 09-16-2010 |
| 20110242217 | LIQUID EJECTION HEAD AND METHOD OF MANUFACTURING THE SAME - A liquid ejection head including: a base plate member having ejection holes and an ejection face having ejection openings; and an actuator; wherein the ejection face has first and second recessed portions extending in one direction and arranged in a perpendicular direction, wherein the ejection openings are formed in bottom portions of the respective first recessed portions; wherein each second recessed portion and a corresponding first recessed portion are arranged side by side such that a separation distance therebetween is not smaller than a separation distance between two first recessed portions located side by side at the shortest distance among first recessed portions and is shorter than a separation distance between two first recessed portions located side by side at the greatest distance among the first recessed portions; and wherein on the bottom portions is formed a liquid repellent layer having not been removed due to a masking material having entered into the first recessed portions to cover the liquid repellent layer. | 10-06-2011 |
| 20120139997 | PROTECTIVE COATING FOR PRINT HEAD FEED SLOTS - A method of method of making a corrosion resistant print head die comprises creating a self-ionized plasma (SIP) of a coating material; establishing a bias on a print head die comprising a plurality of feed slots ( | 06-07-2012 |
| 20110157278 | Process For Preparing An Ink Jet Print Head Front Face Having A Textured Superoleophobic Surface - A process for preparing an ink jet print head front face or nozzle plate having a textured superoleophobic surface comprising providing a silicon substrate; using photolithography to create a textured pattern in the silicon substrate; optionally, modifying the textured silicon surface by disposing a conformal oleophobic coating thereon; and forming an ink jet print head front face or nozzle plate from the textured oleophobic silicon material to provide an ink jet print head front face or nozzle plate having a textured superoleophobic surface. | 06-30-2011 |
