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7618124 |
Thermal bend actuator comprising porous material
A thermal bend actuator, having a plurality of elements, is provided. The actuator comprises a first active element for connection to drive circuitry and a second passive element mechanically...
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7611231 |
Inkjet printhead
An inkjet printhead includes a cavity unit that includes: a plurality of nozzles arranged in at least one row in a first surface of the cavity unit; at least one common ink chamber extending along...
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7611229 |
Inkjet head
An inkjet head includes a passage unit and an actuator unit. The passage unit includes a common ink chamber and an individual ink passage leading from an outlet of the common ink chamber through a...
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7604323 |
Printhead nozzle arrangement with a roof structure having a nozzle rim supported by a series of struts
The invention relates to a nozzle arrangement for an inkjet printhead. The nozzle arrangement has a substrate with a layer of drive circuitry, the substrate defining an ink chamber with an ink...
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7600859 |
Inkjet printhead and manufacturing method thereof
An inkjet printhead and a manufacturing method thereof. In the manufacturing method, a chip and a porous material are provided. A heating layer is formed on the chip. A conductive layer is formed...
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7600857 |
Liquid discharge head
A liquid discharge head includes a discharge element substrate including an energy generating element that generates energy for discharging liquid, a discharge port provided so as to correspond to...
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7597427 |
Liquid channel structure and liquid-droplet jetting apparatus
An ink channel in a channel unit includes a pressure chamber and a throttle channel in which ink flows along different planes and a communication hole which communicates the pressure chamber and...
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7597421 |
Method for assembling a modular printhead assembly
A method for assembling a modular printhead assembly that has a channel member with flexible sides, an elongate ink-delivery member and a plurality of modules for being received in the channel...
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7591541 |
Nozzle arrangement having an actuator slot protection barrier to reduce ink wicking
A nozzle arrangement for an inkjet printer is provided. The arrangement includes a wafer substrate defining a supply channel, and chamber side and roof walls positioned on the substrate, said walls...
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7591540 |
Ink ejection arrangement having cooperating chamber wall edge portions and paddle edge portions
An ink ejection arrangement for a printhead integrated circuit is provided. The arrangement includes a fluid chamber having a fluid outlet nozzle and a fluid supply channel respectively defined in...
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7591539 |
Inkjet printhead with narrow printing zone
An inkjet printhead that has an array of drop ejection apparatuses formed by lithographic etching and deposition techniques on a first side of a supporting wafer substrate. Each of the drop...
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7591531 |
Liquid ejection head
A print head that ejects ink supplied through an ink supply port can prevent the size of satellites from being reduced while inhibiting an increase in resistance to an ink flow. In the print head,...
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7585059 |
Ink jet head and production method therefor
An ink jet head is provided which includes: a piezoelectric board having a plurality of elongated channels arranged parallel to each other and isolated from each other by channel walls; and a...
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7585056 |
Liquid discharge head
An ink jet recording head can, when a smaller liquid droplet is obtained, suppress or reduce stagnation of liquid in a second discharge port portion, prevent an offset meniscus in a discharge port,...
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7581821 |
Head substrate, printhead, head cartridge, and printing apparatus
An object of this invention is to provide a head substrate having a fuse ROM without increasing the size. To achieve the object, a head substrate includes an ink supply port which has a long hole...
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7581818 |
Pagewidth inkjet printhead with ink ejection devices having a series of protrusions to facilitate ink ejection
Provided is a pagewidth inkjet printhead which has a plurality of ink ejection devices. Each of these devices includes a substrate defining a fluid chamber having a fluid outlet nozzle and a fluid...
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7581814 |
Ink channel extrusion module for a pagewidth printhead
An elastomeric ink delivery extrusion transports ink and air to printhead modules in an ink jet printhead assembly. A series of patterned holes are laser ablated onto an upper surface of the...
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7578582 |
Inkjet nozzle chamber holding two fluids
An inkjet nozzle chamber is configured to hold ink and a second fluid with a lower thermal conductivity. At least part of the actuator is positioned at the interface between the ink and the second...
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7571992 |
Pressure compensation structure for microelectromechanical systems
A fluidic micro-electromechanical device includes a pressure compensating subsystem that enables the device to operate consistently in changing environmental pressure conditions. Such a fluidic...
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7571988 |
Variable-volume nozzle arrangement
A nozzle arrangement is provided for an inkjet printhead. The nozzle arrangement includes a substrate assembly defining an ink inlet. A static wall extends from the substrate assembly and bounds...
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7568791 |
Nozzle arrangement with a top wall portion having etchant holes therein
The current invention provides for a nozzle arrangement for an inkjet printer. The nozzle arrangement includes a wafer substrate defining an ink supply channel therethrough, with side wall portions...
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7568790 |
Printhead integrated circuit with an ink ejecting surface
Provided is a printhead integrated circuit defining an external surface having a number of ink ejection ports operatively directed at a printing medium. The surface includes a plurality of petal...
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7568788 |
Printhead with barrier at chamber inlet
An inkjet printhead that has an array of ink ejection devices, each ink ejection device having a chamber for holding a quantity of ink, an inlet in fluid communication with the chamber, an actuator...
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7566117 |
Inkjet recording head and inkjet recording device
The present invention provides an inkjet recording head and inkjet recording device which can eject a high viscosity ink at ordinary temperature. The inkjet recording head has a nozzle portion...
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7566114 |
Inkjet printer with a pagewidth printhead having nozzle arrangements with an actuating arm having particular dimension proportions
An inkjet printer has a pagewidth printhead with a plurality of nozzle arrangements. Each nozzle arrangement includes a substrate with an inlet channel etched therethrough, and nozzle chamber walls...
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7566113 |
Inkjet nozzle incorporating serpentine actuator
A nozzle is provided for an inkjet printer. The nozzle includes a roof layer which defines a nozzle port through which ink can be ejected. An endless substrate layer is fast with the roof layer and...
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7562967 |
Printhead with a two-dimensional array of reciprocating ink nozzles
A printhead is provided for an inkjet printer. The printhead includes a two-dimensional array of ink nozzle arrangements. Each nozzle arrangement includes a wafer portion defining both a nozzle...
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7556356 |
Inkjet printhead integrated circuit with ink spread prevention
An inkjet printhead integrated circuit includes a silicon wafer substrate that defines a plurality of ink inlet channels. An electrical drive circuitry layer is positioned on the silicon wafer...
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7556355 |
Inkjet nozzle arrangement with electro-thermally actuated lever arm
A nozzle arrangement is provided for an inkjet printhead. The nozzle arrangement includes a substrate assembly, in turn, including an electrical drive circuitry layer and defining an ink inlet...
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7556352 |
Inject printhead with outwarldy extending actuator tails
A printhead is provided for an inkjet printer. The printhead includes a wafer assembly defining spaced apart groups of ink supply channels. Groups of ink ejection nozzle arrangements extend from...
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7553001 |
Inkjet printhead with laterally reciprocating paddle
An inkjet printhead includes a nozzle chamber structure defining a nozzle chamber. The nozzle chamber structure further defines a pair of ink ejection nozzles and an ink supply channel in fluid...
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7552534 |
Method of manufacturing an integrated orifice plate and electroformed charge plate
An integrated orifice array plate and a charge plate is fabricated for a continuous ink jet print head by providing an electrically non-conductive orifice plate substrate having first and second...
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7549741 |
Recording head, recording apparatus, and recording system
A recording head records an image on a medium. The recording head includes a recording agent bearing portion that bears a recording agent to be transferred onto the medium for the image to be...
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7549736 |
Printhead assembly having ink flow channels to accommodate offset chips
A printhead body includes a floor having an interior side and an exterior side. A first set of body vias extend through the floor from the interior side to the exterior side. The first set of body...
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7549731 |
Inkjet printer having a printhead with a bi-layer thermal actuator coil
Provided is a printhead for an inkjet printer. The printhead has a plurality of micro-electromechanical ejection mechanisms arranged in a wafer substrate, with each mechanism having chamber walls...
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7549728 |
Micro-electromechanical ink ejection mechanism utilizing through-wafer ink ejection
A micro-electromechanical ink ejection mechanism for an inkjet printer includes a substrate that defines an ink ejection channel through which ink can be ejected. A drive circuitry layer is...
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7549224 |
Methods of making slotted substrates
The described embodiments relate to slotted substrates and methods of making the slotted substrates. One exemplary method patterns a first set of dummy features in a first layer positioned over a...
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7543924 |
Printhead assembly
The present invention relates to a printhead assembly. The printhead assembly comprises an ink supply module for supplying at least one ink. There is also provided a body defining at least one ink...
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7543921 |
Ink-jet printing apparatus with foam removing means
An ink-jet printing apparatus that uniformly coats an alignment layer of an LCD device is provided. The ink-jet printing apparatus includes a head where the head has a head body and a supply pipe...
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7540594 |
Printhead assembly having vertically overlapping ink flow channels
A printhead body for mounting a micro-fluid ejection chip includes a floor having an interior side and an exterior side, the exterior side being configured for mounting at least one micro-fluid...
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7540593 |
Fluid ejection assembly
A fluid ejection assembly includes a first layer, and a second layer positioned on a side of the first layer. The second layer has a side adjacent the side of the first layer and includes a drop...
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7540592 |
Micro-electromechanical nozzle assembly with an arcuate actuator
A micro-electromechanical nozzle assembly includes a substrate that defines an ink chamber and an ink ejection port in fluid communication with the ink chamber on an ejection side of the substrate....
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7537316 |
Inkjet printhead having low mass ejection heater
An inkjet printhead is provided having ink chambers on a first surface of a substrate. Each ink chamber has an ink ejection nozzle, a heater arranged so as to heat the ink to form a gas bubble and...
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7537311 |
Method and apparatus for ejecting liquid
In a method and an apparatus for ejecting liquid, the processing accuracy of an ejection unit for ejecting ink can be easily increased and the variations in the volume of ink drops, the ejection...
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7533967 |
Nozzle arrangement for an inkjet printer with multiple actuator devices
A nozzle arrangement for an inkjet printer includes a wafer that defines an ink supply channel and a nozzle chamber in fluid communication with the ink supply channel. A drive circuitry layer is...
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7527357 |
Inkjet nozzle array with individual feed channel for each nozzle
An inkjet drop ejection apparatus comprising: an array of ink ejection nozzles, each nozzle having a chamber with an actuator for ejecting drops of ink through the nozzle, and an ink inlet in fluid...
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7524037 |
Inkjet recording apparatus
An inkjet recording apparatus includes an inkjet head and a frame supporting the inkjet head. The inkjet head includes a channel unit is fixed to the reservoir unit and a reservoir unit. The...
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7524036 |
Liquid ejection head and liquid ejection apparatus
The liquid ejection head having a nozzle through which liquid is ejected, the nozzle having an inertance Mn; a pressure chamber which accommodates the liquid to be ejected through the nozzle; a...
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7524035 |
Fluid ejection device
A fluid ejection device includes an orifice structure with an orifice. A fluid reservoir is on the exterior surface of the orifice structure. A barrier portion is between the fluid reservoir and...
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7524033 |
Nozzle arrangent with movable ink ejection structure
A nozzle arrangement is provided for an ink jet printhead. The nozzle arrangement includes a wafer substrate arrangement. The wafer substrate arrangement defines an ink inlet channel and a first...
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