Abstract: A liquid discharge cartridge manufacturing method includes a first step of individually shaping a first shaped member and a second shaped member that form a housing of a liquid discharge cartridge, and a second step of joining the first shaped member and the second shaped member to be bonded to each other with molten resin. The first step includes shaping a wall section in the first shaped member, the wall section forming a recess for accommodating the molten resin, and shaping a projection in the second shaped member, the projection extending such that the projection is located at the outer side of the wall section and adjacent to the wall section, with a predetermined gap being formed between the projection and the wall section, when the first and second shaped members are joined.

Abstract: A fluorinated ether compound and a composition capable of forming a light resistant surface layer and an article are provided. The fluorinated ether compound of the present invention has a poly(oxyfluoroalkylene) chain, a reactive silyl group and a group (A) represented by —NR—C(O)— (wherein R is a hydrogen atom or an alkyl group), wherein the carbonyl carbon in the group (A) is bonded to a carbon atom, and the poly(oxyfluoroalkyiene) chain is located at the nitrogen end of the group (A).

Abstract: A discharge unit includes a head configured to discharge a liquid, a head mount to which the head is detachably attachable, and a holder configured to hold the head mount. The head mount includes multiple rotation mechanisms on multiple places of the head mount in a longitudinal direction of the head mount, and the holder is configured to rotatably and independently hold the multiple places of the head mount with the rotation mechanisms.

Abstract: A liquid ejecting apparatus includes: a liquid ejecting head that includes a flow path formation substrate in which a pressure chamber communicating with a nozzle is formed, a vibration plate, and a piezoelectric actuator having a first electrode, a piezoelectric layer, and a second electrode; and a drive unit that supplies a drive signal for driving the piezoelectric actuator, in which the piezoelectric actuator includes an active portion, the active portion is extended from an edge portion, which is a region other than a central portion of a region facing the pressure chamber, to the outside of the pressure chamber, and the drive signal includes a contraction element that contracts the pressure chamber from a reference volume of the pressure chamber when no electric field is applied to the piezoelectric layer, and an expansion element that expands the pressure chamber contracted by the contraction element.

Abstract: A liquid discharging device to be used with a liquid dispensing apparatus includes a discharging portion configured to discharge a liquid based on a control signal from the liquid dispensing apparatus on which the liquid discharging device is mounted, and a sheet material having a characteristic configured to be changed by the liquid dispensing apparatus after a discharge of the liquid by the discharging portion.

Abstract: An ejection surface extends in a first direction as a scanning direction and a second direction orthogonal to the first direction and is externally exposed. A plurality of nozzles opens at the ejection surface. A plurality of partial channels is located inside the ejection surface, and at bottom surfaces on a side of the ejection surface, the nozzles open. The plurality of nozzles is arranged in a direction intersecting with the first direction in plural rows to constitute a plurality of nozzle rows. The number of the nozzles arranged in each row is greater than the number of the plural rows. Between the nozzles in each nozzle row, the nozzles in other nozzle rows appear as seen in the first direction. A position of openings in the bottom surfaces of the partial channels differs across at least some of the nozzles in each nozzle row.

Abstract: A liquid ejecting head unit configured to eject a liquid includes a flow channel member, and a liquid ejecting head configured to eject the liquid supplied from the flow channel member, in which the flow channel member includes a flow channel structure having a supply flow channel through which the liquid supplied from the outside flows, and a supply protrusion that protrudes from the flow channel structure and has a supply port for supplying the liquid from the outside to the supply flow channel, a wall surface of the supply flow channel is made of a resin, and at least a part of the supply protrusion is made of a metal.

Abstract: A piezoelectric element includes a piezoelectric layer formed as a stacked structure of first, second, and third piezoelectric films. The first piezoelectric film is formed on a first electrode. The second piezoelectric film is formed on the first piezoelectric film. The third piezoelectric film is formed on the second piezoelectric film. Each of the first, second, and third piezoelectric films includes potassium, sodium, and niobium. A second electrode is formed on the piezoelectric layer. A concentration of sodium in the first piezoelectric film is greater than a concentration of sodium in the second piezoelectric film. The concentration of sodium in the second piezoelectric film is greater than a concentration of sodium in the third piezoelectric film.

Abstract: A method for producing a substrate that includes a protective layer made from a metal oxide protecting silicon against corrosion and an organic resin layer on a substrate surface of a silicon substrate includes the following steps in this order: step A of forming the protective layer on the substrate surface; step B of removing the protective layer from the substrate surface in a region Z1 that is a part of the region in which the protective layer has been formed; and step C of providing an organic resin layer on the substrate surface in a region Z2 including the region Z1.

Abstract: There is provided a liquid discharge apparatus including: at least one liquid discharge head; and a holding member holding the liquid discharge head. The liquid discharge head includes: a nozzle plate; a first channel member stacked on the nozzle plate in a first direction and including a channel through which liquid is supplied to the nozzles, and a second channel member including at least one plate and arranged between the nozzle plate and the first channel member in the first direction, the second channel member including individual channels connected to the nozzles. The second channel member includes a securing portion secured to the holding member and provided at a position closer to the nozzle plate than the first channel member.

Abstract: A system and method for printing patterns on a substrate, including a substrate; a powder; a sealing coating; and a UV curable paint; wherein the powder, the sealing coating and the UV curable paint are deposited onto the substrate and heated and cured. The method is designed to make the substrate have a faux appearance with lower costs than manufacturing the real substrate it was meant to look like.

Abstract: Methods and systems for preparing a hole having an accurately controlled area in an orifice plate for a mass flow controller are provided. Methods involve forming an initial hole in the orifice plate. The initial hole has an opening having an initial area. The orifice plate comprises a material that can react to form a coating on the orifice plate. The coating occupies a greater volume than the material consumed to form the coating. The material of the orifice plate is reacted with a reactant to produce the coating and thereby produce a reduced area hole having an opening with a reduced area that is smaller than the initial area. The reduced area hole is measured. A determined amount of the coating is removed from at least the reduced area hole to produce a final hole in the orifice plate, wherein the reduced area is smaller than an opening area of the final hole.

Abstract: A liquid discharge head including: a flow path formation part in which pressure generation chambers are arranged; and a pressure generation unit configured to apply pressure to the pressure generation chambers, wherein the pressure generation unit is formed by joining a vibration unit to the flow path formation part with a resin layer, and wherein the resin layer includes a curable resin composition including (A) an epoxy resin, (B) a polythiol compound, (C) at least one adhesiveness-imparting agent selected from the group consisting of a compound represented by General Formula (1), a titanium compound represented by General Formula (2-1), and a titanium compound represented by General Formula (2-2), and (D) a curing accelerator.

Abstract: A nozzle assembly may be used to apply fluid to an advancing substrate. The nozzle assembly includes a nozzle body made from a first material. The nozzle body may include one or more abrasion resistant materials fused to the nozzle body. The nozzle body may be configured to deposit a fluid, using a shim plate, onto the advancing substrate. As the substrate advances past the nozzle assembly, the substrate and/or the fluid may contact the nozzle assembly resulting in wear. The one or more abrasion resistant materials, which is different than the first material of the nozzle body, may be fused to a portion of the nozzle body to reduce the wear and prolong the life of the nozzle body. Thus, the portion of the nozzle body having the abrasion resistant material is restored rather than having to replace the entire nozzle body.

Abstract: The invention proposes a de-icing splitter nose at the inlet of the low-pressure compressor of a double-flow turbine engine. The splitter nose comprises an annular separation surface with a circular leading edge, the surface being adapted to separate an upstream flow into a primary flow and a secondary flow. The nose further comprises an electric de-icing device with a heating element having a series of parallel, electric, heating strips. The strips are inserted between two strata of dielectric material and are able to prevent the formation of ice on the annular surface, as close as possible to the leading edge.

Abstract: A pressing method for pressing a surface of a resin layer includes pressing a surface of a resin layer of a wafer using a pressing member, which is to be divided into a plurality of liquid ejection head chips, the wafer including a substrate and the resin layer to serve as an ejection port forming member provided on the substrate. The pressing of the surface of the resin layer is performed by positioning a structure closer to a circumference of the wafer than to an area that becomes the plurality of liquid ejection head chips on the substrate, the structure being in contact with the resin layer.

Abstract: A method for manufacturing a liquid ejection head includes forming a first negative photosensitive resin layer containing a photopolymerizable compound and a photopolymerization initiator over a substrate, exposing the first negative photosensitive resin layer to light to form a latent image of a flow channel member, forming a second negative photosensitive resin layer containing a photopolymerizable compound and a photopolymerization initiator over the first negative photosensitive resin layer having the latent image, and exposing the second negative photosensitive resin layer to light to form a latent image of an ejection opening member. The first negative photosensitive resin layer has a thickness of 10 ?m or less and further contains a sensitivity adjusting agent capable of reducing the sensitivity of the first negative photosensitive resin layer. The transmittance A of the first negative photosensitive resin layer is 0.70 or less for the exposure light for the second negative photosensitive resin layer.

Abstract: In one example, a fluid flow structure includes a fluid dispensing micro device embedded in a molding having a channel therein through which fluid may flow directly to the device. The device contains multiple fluid ejectors and multiple fluid chambers each near an ejector. Each chamber has an inlet through which fluid from the channel may enter the chamber and an outlet through which fluid may be ejected from the chamber. A perimeter of the channel surrounds the inlets but is otherwise unconstrained in size by the size of the device.

Abstract: A method for forming piezoelectric transducers for inkjet printheads includes: forming at least one piezoelectric layer on a substrate; forming at least one electrode pattern by depositing a conductive material on an exposed surface of the at least one piezoelectric layer; and forming a plurality of individual piezoelectric elements from the at least one piezoelectric layer before or after the forming of the at least one electrode pattern.

Abstract: A head unit includes a structure and a driver IC. The driver IC includes: a first electrode group including first and second electrodes electrically connected to one ends of first and second actuators; a second electrode group including third and fourth electrodes electrically connected to one ends of third and fourth actuators; a third electrode group including electrodes electrically connected to the other ends of the first and second actuators; and a fourth electrode group including electrodes electrically connected to the other ends of the third and fourth actuators. The third electrode group is arranged along one side of the driver IC, the fourth electrode group is arranged along a side different from the one side, and an area where the first and second electrode groups are arranged is situated between an area where the third electrode group is arranged and an area where the fourth electrode group is arranged.

Abstract: A process comprises bonding a semiconductor wafer to an inorganic wafer. The semiconductor wafer is opaque to a wavelength of light to which the inorganic wafer is transparent. After the bonding, a damage track is formed in the inorganic wafer using a laser that emits the wavelength of light. The damage track in the inorganic wafer is enlarged to form a hole through the inorganic wafer by etching. The hole terminates at an interface between the semiconductor wafer and the inorganic wafer. An article is also provided, comprising a semiconductor wafer bonded to an inorganic wafer. The semiconductor wafer is opaque to a wavelength of light to which the inorganic wafer is transparent. The inorganic wafer has a hole formed through the inorganic wafer. The hole terminates at an interface between the semiconductor wafer and the inorganic wafer.

Abstract: A device for forming and ejecting drops of an ink jet of a CIJ printing machine, this device including: a cavity for containing an ink and including an end provided with a nozzle (10) for ejecting ink drops, actuator means (21, 22, 32, 41, 42), in contact with the cavity, in which device the jet velocity modulation, from the nozzle (10), has a value ?Vj(ft) at the operating frequency of the cavity and the actuator, and this jet velocity modulation, at the temperature of 15° C. and at the temperature of 35° C., does not vary, in a frequency range of ±5 kHz about the operating frequency ft, outside the range of between 0.25?Vj(ft) and 4?Vj(ft).

Abstract: A liquid supply device includes a liquid container that includes a liquid containing chamber, which is capable of containing liquid, and a liquid inlet, which allows the liquid containing chamber to be filled with liquid. An external member covers at least a portion of the liquid container excluding a portion where the liquid inlet is located from an outer side. A seal member seals a gap between the external member and the liquid inlet. The liquid supply device is configured to allow the liquid to be supplied from the liquid container to a printing unit that performs printing on a medium using the liquid.

Abstract: In an example implementation, a printhead includes a die sliver molded into a molding. The die sliver includes a front surface exposed outside the molding and flush with the molding to dispense fluid, and a back surface exposed outside the molding and flush with the molding to receive fluid. Edges of the die sliver contact the molding to form a joint between the die sliver and the molding.

Abstract: A thermal inkjet printhead is described. The thermal inkjet printhead comprising a passivation layer and a plurality of bond pads formed over the passivation layer. The thermal inkjet printhead further comprises a plurality of insulating strips formed over the passivation layer. The insulating strips are formed such that two adjacent bond pads are separated by an insulating strip, from among the plurality of insulating strips. Further, each of the plurality of the insulating strips is of a dielectric material.

Abstract: In one example, a molded printhead includes a printhead die in a molding having a channel therein through which fluid may pass directly to a back part of the die. The front part of the die is exposed outside the molding surrounding the die. Electrical connections are made between terminals at the front part of the die and contacts to connect to circuitry external to the printhead.

Abstract: A inspection method for a solution discharge device includes a discharge step, a imaging step, an acquisition step, and a judgement step of identifying a main drop among deposits found to have a deposit surface area falling within a deposit surface area standard for each imaging area. An upper bound and a lower bound of the deposit surface area standard are determined according to timing of imaging in the imaging step, such that the values applied to deposits in an imaging area imaged at a second imaging time that is later than a first imaging time are smaller than those applied to deposits in an imaging area imaged at the first imaging time.

Abstract: A method of assembling together by brazing first and second parts made of composite material, each of the first and second parts having an assembly face for brazing with the assembly face of the other part, the method including making at least one perforation in the assembly face of the first part; interposing capillary elements between the assembly faces of the first and second parts made of composite material; placing the first and second parts facing each other while inserting a peg in each perforation of the first part; placing a brazing composition in contact with a portion of the capillary elements; and applying heat treatment to liquefy the brazing composition so as to cause the molten brazing composition to spread by capillarity between the assembly faces of the composite material parts.

Abstract: A method for producing a liquid discharging head includes an element substrate provided with a discharge opening for discharging a liquid and a supporting member that supports the element substrate, the element substrate having a first surface and a second surface opposite to the first surface, the supporting member having a height reference surface and an element-substrate bonding surface to which the first surface is bonded with an adhesive. The method includes the steps of measuring a height h of the element-substrate bonding surface from the height reference surface; applying the adhesive to the element-substrate bonding surface; and causing the first surface to oppose the element-substrate bonding surface with the adhesive being provided therebetween, and disposing the second surface at a predetermined height m from the measured height h to harden the adhesive at a portion between the element-substrate bonding surface and the element substrate.

Abstract: An electrostatic actuator for a printhead. The electrostatic actuator may include a substrate. A dielectric layer may be disposed on the substrate. An electrode layer may be disposed on the dielectric layer. A first standoff layer may be disposed at least partially on the electrode layer. A second standoff layer may be disposed at least partially on the electrode layer and at least partially on the first standoff layer. A portion of the second standoff layer disposed on the electrode layer may be removed to form one or more landing pads. A membrane may be disposed at least partially on the second standoff layer.

Abstract: A method for manufacturing a piezoelectric actuator is disclosed that includes forming a vibration plate, forming a plurality of electrodes on the vibration plate, forming a piezoelectric layer on the electrodes, and forming a common electrode on the piezoelectric layer.

Abstract: A silicon nozzle plate has excellent liquid resistance on an inner surface of a nozzle opening and a discharge surface. A plurality of the nozzle openings are disposed in a silicon substrate of the nozzle plate. A tantalum oxide film formed by atomic layer deposition is disposed on both surfaces of the silicon substrate and the inner surface of the nozzle opening.

Abstract: Provided are an inkjet print apparatus and an inkjet print method to reduce a process time required for replacing a head module. The inkjet print apparatus includes a first chamber having a head module; a second chamber disposed to contact the first chamber; and a third chamber disposed outside the first chamber and the second chamber and providing a space for performing a test for checking a state of a replacement head module. The method includes placing a first substrate in a first chamber below a head module; vertically moving the head module into the second chamber from the internal space of the first chamber when the head module is replaced with a replacement head module; and performing a test for checking a state of the replacement head module in a third chamber disposed outside the first chamber and the second chamber.

Abstract: According to one embodiment, an inkjet head includes a base, a driving element, a nozzle plate, electrodes, wires, a supplying unit, and a discharging unit. The base includes an attachment surface and a side surface crossing the attachment surface. The driving element is attached to the attachment surface and includes pressure chambers. The nozzle plate is attached to the driving element and includes nozzles opened to the pressure chambers. The electrodes are provided in the pressure chambers. The wires are provided on the side surface and connected to the electrodes. The supplying unit is connected to the pressure chambers and supplies ink to the pressure chambers. The discharging unit is connected to the pressure chambers and discharges the ink from the pressure chambers.

Abstract: Provided is a method for manufacturing a substrate for liquid ejection head including an ejection energy generating element and a nozzle layer including an ejection port and a liquid channel. The method includes the steps of: forming, on the substrate including the element, a metal mold member made of metal and having a flat surface, the metal mold member making up at least a part of a mold for the liquid channel, and a planarization layer made of the metal and having a flat surface to planarize a surface of the nozzle layer; coating the mold for the liquid channel and the planarization layer with negative-type photosensitive resin, thus forming a negative-type photosensitive resin layer to be the nozzle layer; exposing the resin layer to ultraviolet rays, thus forming the ejection port; and selectively removing the mold for the liquid channel, thus forming the liquid channel.

Abstract: A liquid ejection head including: a support member, a plurality of printing element boards arranged linearly on the support member, an electric wiring member fixed to the support member, and configured to transmit an electrical signal necessary to eject a liquid to the plurality of printing element boards, a plurality of conductive members arranged in an arranging direction of the plurality of printing element boards, and configured to electrically connect the plurality of printing element boards to the electric wiring member, and a thermosetting sealing member extending in the arranging direction and covering the conductive members, connecting points of the printing element boards with the conductive members, and connecting points of the electric wiring member with the conductive members, wherein the sealing member is divided at, at least one place in the arranging direction.

Abstract: A liquid ejection head is provided. The liquid ejection head includes a nozzle substrate to eject a droplet of a liquid from a nozzle thereof; a surface treatment layer, which is located on the surface of the nozzle substrate and which is an oxide layer including silicon (Si) and a transition metal capable of forming a passive layer; and an organic liquid repellent layer located on the surface treatment layer.

Abstract: A liquid droplet discharge head includes an orifice plate that has a nozzle hole row in which a plurality of nozzle holes is formed in a row by press working. Liquid droplets are discharged to a to-be-landed-on member from the nozzle holes and land on the to-be-landed-on member, and a plurality of dummy pressed points for making uniform opening directions of the nozzle holes is formed on both of end sides of the nozzle hole row in the orifice plate.

Abstract: An ink jet head according to an embodiment comprises a substrate including amounting surface and a pressure chamber open to the mounting surface, the substrate having a first expansion coefficient. The ink jet head further comprises a vibration plate including a first surface fixed to the mounting surface of the substrate, a second surface located on the opposite side of the first surface, an opening portion open to the pressure chamber, a first portion having a second expansion coefficient different from the first expansion coefficient, and a second portion having a third expansion coefficient different from the second expansion coefficient. The ink jet head further comprises a piezoelectric element provided on the second surface of the vibration plate and configured to deform the vibration plate to thereby change a volume of the pressure chamber.

Abstract: A device substrate includes a substrate body having an energy generating device provided thereon, where the energy generating device generates energy for ejecting liquid, an ejection port forming member disposed on the substrate body, where the ejection port forming member has a pressure chamber that surrounds the energy generating device and an ejection port that communicates with the pressure chamber, and a supply port configured to supply the liquid to the pressure chamber. The ejection port forming member has a first surface that is in contact with the substrate body and a second surface other than the first surface, and the supply port is formed in the second surface.

Abstract: Methods and apparatus of an improved cooling structure having cooling passages are provided. A method includes forming pilot holes with an electrical discharge machine (EDM) drill near a heated flow surface. The pilot holes are then shaped with a wire EDM into cooling passages having a desired shape.

Abstract: A nanoprinthead including an array of nanotip cantilevers, where each nanotip cantilever includes a nanotip at an end of a cantilever, and a method for forming the nanoprinthead. Each nanotip may be individually addressable through use of an array of piezoelectric actuators. Embodiments for forming a nanoprinthead including an array of nanotip cantilevers can include an etching process from a material such as a silicon wafer, or the formation of a metal or dielectric nanotip cantilever over a substrate. The nanoprinthead may operate to provide uses for technologies such as dip-pen nanolithography, nanomachining, and nanoscratching, among others.

Abstract: A manufacture method can form an inkjet printing head by which a plurality of ejection openings have a uniform shape. Heaters adjacent to one another have thereamong a common conductive line commonly connected to these heaters or a dummy conductive line not involved in the energization of the heaters.

Abstract: An electrostatic painting apparatus is provided. The electrostatic painting apparatus includes a body, a plurality of rotary atomizers included at least partially within the body, wherein each rotary atomizer is configured to electrostatically apply a coating material to a conductive substrate, and wherein each rotary atomizer is independently controllable, and a single high voltage cascade coupled to the plurality of rotary atomizers and configured to provide a high voltage to each rotary atomizer such that the same voltage is applied to each rotary atomizer.

Abstract: A method and structure for forming an ink jet printhead can include the use of a transfer pad to transfer an adhesive solution to an ink jet printhead substrate. The adhesive solution can be placed within a patterned recess of a cliché and then an upper surface of the adhesive solution can be gelled. A surface of the transfer pad contacts the gelled upper surface and transfers the adhesive solution to the ink jet printhead substrate. During the transfer, a lower surface of the adhesive solution gels. During contact with the ink jet printhead substrate, the gelled lower surface adheres to the ink jet printhead substrate while the gelled upper surface releases from the transfer pad.

Abstract: Systems, methods and structures for remanufacturing inkjet printer cartridges and inkjet printer print heads by removing the print head and adhesive holding the print head to a used inkjet printer cartridge, preparing the cartridge housing for a new print head by routing out the used print head and used adhesive to create a new mounting surface for new adhesive and a new print head, placing the adhesive and new print head on the new mounting surface, curing the adhesive and assembling a re-manufactured cartridge from the cartridge housing having a new print head positioned thereon.

Abstract: Provided is a thermo-pneumatic actuator which can include a substrate, an insulating layer formed on the substrate, a working fluid disposed in a fluid chamber, an ink chamber separated from the fluid chamber by at least a portion of the device layer comprising an actuatable membrane, and a heating element formed between the insulating layer and the fluid chamber. A boiling point temperature of the working fluid in the fluid chamber is in the range of greater than about 100° C. to about 500° C.

Abstract: A method of manufacturing a liquid jet head comprises forming a terminal region on a top surface of an actuator substrate in the vicinity of a rear end thereof, and forming on the top surface a plurality of alternately arrayed ejection grooves and dummy grooves arranged in parallel to each other from a front end toward the terminal region. Shallow grooves are formed in the terminal region, and a conductive film is formed on the top surface, side surface and bottom surface of each of the ejection grooves, and on the side surface and bottom surface of the shallow grooves. The conductive film is removed from the top surface by grinding, and a cover plate is bonded to the actuator substrate so as to expose the terminal region and cover the ejection grooves. A nozzle plate is adhered to a side surface of the actuator substrate at which the ejection grooves are opened.

Abstract: Electromagnetic radiation is transmitted through a piezoelectric material and is absorbed in at least an adhesive that bonds the piezoelectric material to another material. Absorbing the electromagnetic radiation in the adhesive ablates the adhesive and the ablation of the adhesive acts to remove the piezoelectric material.

Abstract: A method of manufacturing a nozzle plate of a spray apparatus is provided. The method includes providing a conductive layer; forming a plurality of insulating layers on the conductive layer, wherein each of the insulating layers has at least one first tapered geometrical structure with mirror symmetry and a centroid with positional deviation from a first pattern center, and wherein the centroid of the first tapered geometrical structure is a barycenter of the first tapered geometrical structure; forming an electroplating layer on the conductive layer and part of the insulating layer, leaving the central part of the insulating layer exposed; and removing the conductive layer and the insulating layer to form a main body resulting in a plurality of orifices each having an inlet end and an outlet end on the electroplating layer.