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7152951 |
High resolution ink jet printhead
A high resolution printhead for an ink jet printer. The printhead includes a semiconductor substrate containing at least one ink feed edge and a plurality of ink ejection actuators spaced a...
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7147303 |
Inkjet printing device that includes nozzles with volumetric ink ejection mechanisms
An ink jet printing device includes a substrate that defines a plurality of ink supply passages. Drive circuitry is positioned on the substrate. A plurality of nozzle chamber structures is arranged...
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7147302 |
Nozzle assembly
The present invention relates to a nozzle assembly for ejecting ink. The nozzle assembly includes a body and an actuator support extending from the body. There is also provided an actuator arm...
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7147297 |
Ink jet nozzle arrangement that incorporates a movement sensor
An ink jet nozzle arrangement for ejecting ink includes a substrate that defines an ink inlet. Integrated circuitry is positioned on the substrate. A nozzle chamber structure is positioned on the...
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7144100 |
Purgeable print head reservoir
A print head reservoir includes a plate having first and second sides and a passage extending through said plate. The plate defines an angled channel in communication with the passage and an outlet...
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7144099 |
Liquid drop emitter with split thermo-mechanical actuator
An apparatus for a liquid drop emitter, especially for use in an ink jet printhead, is disclosed. A chamber filled with a liquid, a nozzle and a thermo-mechanical actuator, extending into the...
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7144098 |
Printer having a printhead with an inkjet printhead chip for use with a pulsating pressure ink supply
An ink jet printer includes a printhead with a printhead integrated circuit that includes a substrate incorporating drive circuitry. A plurality of nozzle arrangements is positioned on the...
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7140722 |
Non-planar ink ejection arrangement for inkjet printhead
An ink ejection arrangement for an inkjet printhead is provided. The arrangement comprises an ink chamber, a nozzle and an ink ejector. The ink chamber is arranged in fluid communication with an...
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7140720 |
Micro-electromechanical fluid ejection device having actuator mechanisms located in chamber roof structure
A micro-electromechanical fluid ejection device includes a substrate that defines a plurality of fluid supply channels and a plurality of chambers in fluid communication with respective fluid...
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7140719 |
Actuator for a micro-electromechanical valve assembly
An elongate actuator is anchored at one end to the wafer substrate to be in electrical contact with the drive circuitry layers. A closure member is mounted on an opposite end of the elongate...
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7134740 |
Pagewidth inkjet printhead assembly with actuator drive circuitry
A pagewidth inkjet printhead assembly includes an ink supply assembly that spans a print medium, in use. A number of printhead segments are mounted on the ink distribution assembly to span the...
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7131717 |
Printhead integrated circuit having ink ejecting thermal actuators
An inkjet printhead integrated circuit is provided including a substrate defining ink supply channels, a drive circuitiy layer positioned on the substrate, and nozzle arrangements positioned on the...
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7128845 |
Protection of nozzle structures in an ink jet printhead
A printhead for an ink jet printer with an array 14 of ink ejection nozzles 22 formed from MEMS techniques. To protect the delicate nozzle structures, a nozzle guard 80 covers the exterior...
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7125106 |
Method of assembling a printhead support assembly
A method of assembling an inkjet printhead assembly includes the step of mounting printhead segments on each of a number of printhead segment carriers. The printhead segment carriers are secured...
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7125103 |
Fluid ejection device with a through-chip micro-electromechanical actuator
A fluid ejection device includes a substrate that defines a plurality of nozzle chambers. A drive circuitry layer is positioned on one side of the substrate and contains drive circuitry. A...
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7125102 |
Micro-electromechanical fluid ejection device with guided actuator movement
A micro-electromechanical fluid ejection device includes a substrate that defines a fluid inlet channel and incorporates a wafer and drive circuitry positioned on the wafer. Nozzle chamber walls...
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7121649 |
Ink-jet head and reservoir unit included in ink-jet head
An ink-jet head comprises a passage unit and a reservoir unit. The passage unit includes a common ink chamber that extends in one direction. The reservoir unit is fixed to the passage unit, and...
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7117597 |
Method of manufacturing liquid discharge head
A method of manufacturing a liquid discharge head provided with a liquid flow path communicating with a liquid discharge port on a substrate has a step of forming a first electrically conductive...
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7111925 |
Inkjet printhead integrated circuit
An inkjet printhead integrated circuit is provided. The integrated circuit comprises a plurality of nozzle arrangements, each nozzle arrangement comprising a nozzle chamber and an ink ejection...
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7111920 |
Fluid jet head with driving circuit of a heater set
A fluid jet head with driving circuit of a heater set. A first and a second primary transistor are coupled to a first and a second heater. When the first primary transistor is turned on under...
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7104633 |
Monolithic ink-jet printhead and method of manufacturing the same
An ink-jet printhead includes a substrate, a doughnut-shaped heater formed on the top surface of the substrate, an ink chamber barrier disposed on the substrate to enclose the heater, an ink...
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7101030 |
Formation of novel ink jet filter printhead using transferable photopatterned filter layer
Disclosed is a process for forming a channel wafer for a novel ink jet printhead, having an ink particle-filter layer over the ink-inlet surface thereof. The process comprises the steps of applying...
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7093928 |
Printer with printhead having moveable ejection port
A printer has an inkjet printhead formed on a wafer substrate. Formed in the wafer are a plurality of nozzle chambers for storing ink to be ejected. Each of the nozzle chambers has an outer wall...
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7090340 |
Inkjet recording head and inkjet recording apparatus using the same
An inkjet recording head includes: a nozzle plate having nozzles arranged in a row; a plurality of pressure generating chambers communicating to the nozzles, the plurality of pressure generating...
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7090339 |
Liquid discharge head and method of manufacturing the same
A method of manufacturing a liquid discharge head, comprising the steps of forming a film of an inorganic material in the form of a liquid flow path pattern on a substrate having liquid discharge...
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7090337 |
Inkjet printhead comprising contractible nozzle chambers
An inkjet printhead having a plurality of nozzle assemblies is provided. Each nozzle assembly comprises a nozzle chamber for ink to be ejected. The chamber includes an ink inlet for fluid...
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7086721 |
Moveable ejection nozzles in an inkjet printhead
The invention describes an inkjet printhead. The printhead includes an array of ink chambers, each with an outer wall defining an ink ejection port and having at least one actuator. The outer wall...
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7086720 |
Micro-electromechanical fluid ejection device that incorporates a shape memory alloy based actuator
A micro-electromechanical fluid ejection device includes a wafer substrate. Drive circuitry is positioned on the wafer substrate. A nozzle chamber structure is arranged on the wafer substrate to...
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7086142 |
Method of manufacturing an ink-jet printhead
A method of manufacturing an ink-jet printhead, including forming an insulation film on a substrate, depositing a metal layer onto said insulation film and patterning said metal layer to form a...
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7083268 |
Slotted substrates and methods of making
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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7083267 |
Slotted substrates and methods and systems for forming same
Methods and systems for forming slotted substrates are described. In one exemplary embodiment, a substrate has a thickness defined by a first surface and a generally opposing second surface. The...
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7083264 |
Micro-electromechanical liquid ejection device with motion amplification
A micro-electromechanical liquid ejection device includes a substrate that defines a liquid inlet channel. Drive circuitry is positioned on the substrate. A nozzle chamber structure is positioned...
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7083263 |
Micro-electromechanical fluid ejection device with actuator guide formations
A micro-electromechanical fluid ejection device includes a substrate containing drive circuitry. A nozzle chamber structure is positioned on the substrate and defines a nozzle chamber and a fluid...
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7083262 |
Inkjet printhead chip with improved nozzle arrangement layout
An ink jet printhead chip includes a substrate that defines a plurality of ink inlet channels. A plurality of nozzles is positioned on the substrate and is in fluid communication with the ink inlet...
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7080895 |
Inkjet printhead apparatus
An inkjet printhead apparatus including a plurality of nozzle chambers each having a nozzle aperture defined in one wall thereof for the ejection of ink out of said chamber and a second aperture...
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7077508 |
Micro-electromechanical liquid ejection device with a thermal actuator that undergoes rectilinear motion
A micro-electromechanical liquid ejecting device includes a substrate that defines a liquid inlet channel. A drive circuitry layer is positioned on the substrate. A nozzle chamber structure is...
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7077507 |
Micro-electromechanical liquid ejection device
A micro-electromechanical liquid ejection device includes a wafer substrate that incorporates drive circuitry and that defines a liquid inlet. A nozzle chamber structure is positioned on the wafer...
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7073900 |
Water base ink for ink-jet recording
A water base ink for ink-jet recording is provided, which makes it possible to perform the discharge operation stably and highly accurately for a long period of time without deteriorating a metal,...
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7073891 |
Monolithic ink-jet printhead having a metal nozzle plate and manufacturing method thereof
A monolithic ink-jet printhead includes a substrate having an ink chamber to be supplied with ink to be ejected on a front surface thereof, a manifold for supplying ink to the ink chamber on a rear...
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7069656 |
Methods for manufacturing monolithic ink-jet printheads
A monolithic ink-jet printhead includes a substrate having an ink chamber to be filled with ink to be ejected on a front surface, a manifold for supplying ink to the ink chamber on a rear surface,...
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7067067 |
Method of fabricating an ink jet printhead chip with active and passive nozzle chamber structures
A method of fabricating an inkjet printhead chip for an inkjet printhead includes the step of depositing a first layer of a sacrificial material on a wafer substrate that incorporates drive...
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7066581 |
Monolithic printhead with self-aligned groove and relative manufacturing process
A monolithic thermal ink jet printhead ( 40 ) comprising a groove ( 45 ), a plurality of chambers ( 74 ) and nozzles ( 56 ) is manufactured by means of steps of: ( 203, 205 ) partially etching the...
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7066575 |
Micro-electromechanical fluid ejection device having a buckle-resistant actuator
A micro-electromechanical fluid ejection device includes a substrate that defines a fluid inlet channel and incorporates a wafer and CMOS layers positioned on the wafer. A nozzle chamber structure...
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7063406 |
Printer head chip and printer head
A printer head chip includes a plurality of ink compressing chambers which include heat-generating resistors and which are disposed side by side on a substrate. The printer head chip is used to...
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7063404 |
Film for use between two objects
A film is provided intended to be sandwiched between opposing faces of two objects. Each of the opposing faces have channels, passageways or openings that communicate with one or more that have...
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7059708 |
Inkjet head and inkjet printer using the same
The inkjet head ejects ink droplets through ejection nozzles with pressurizing elements and includes ink channels and ink circulation paths. Each ink channel is provided in a gap between a...
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7056444 |
Method of forming pillars in a fully integrated thermal inkjet printhead
Pillars are formed in a fully integrated thermal inkjet printhead to prevent particles from entering into a nozzle chamber along an ink refill channel. The pillars are formed after a step of...
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7055938 |
Liquid jet recording head and process for production thereof
A liquid jet recording head comprises a constituting member formed from a cured product of a resin composition comprising (1) a curable epoxy compound, (2) a compound having a functional group...
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7052116 |
Printhead with multiple ink feeding channels
A thermal ink jet printhead ( 40 ) for the emission of droplets of ink on a print medium ( 46 ) comprises a reservoir ( 103 ) containing ink ( 142 ), a die ( 61 ), a slot ( 102 ) engraved in said...
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7048358 |
Liquid discharge head and method for manufacturing such head
The present invention provides a liquid discharge head and a method for manufacturing such a head, in which a discharging speed of a liquid droplet can be increased, a discharging amount of the...
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