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7334879 |
Ink-jet head
An ink-jet head comprises an ink chamber, a pressure chamber, an actuator, a constriction, and a nozzle. The ink chamber contains ink. To the pressure chamber, ink is supplied from the ink chamber....
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7334877 |
Nozzle for ejecting ink
The present invention relates to a nozzle for ejecting ink. The nozzle includes an ink chamber in which the ink can be provided and a plurality of elements located adjacent the ink chamber. An...
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7334335 |
Method of manufacturing a monolithic ink-jet printhead
A monolithic ink-jet printhead, and a method of manufacturing the same, includes a substrate having an ink chamber, an ink channel, and a manifold, a nozzle plate formed on the substrate, a nozzle,...
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7331659 |
Baffled ink supply for reducing ink accelerations
A printhead comprises a plurality of nozzle chambers that house an ink ejection actuator for ejecting ink from said nozzle chamber. An ink jet supply unit connects directly to the printhead which...
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7331656 |
Ink jet recording head and method of manufacturing the same
An ink jet recording head, which can effectively prevent any bubble and solid matter such as dust existing in supplied ink to reach the vicinity of a nozzle, includes a plurality of energy...
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7331655 |
Fluid coupler and a device arranged with the same
Plural film layers are disposed on a substrate. Each film layer has regions devoid of film material, thus forming film layer cavity openings. Each film layer has its cavities arranged to provide...
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7328981 |
Electrostatic actuator, liquid discharge head, liquid cartridge, imaging apparatus, micro pump, and optical device
An electrostatic actuator is disclosed that includes a deformable oscillating plate that is deformed by electrostatic force, an electrode that is arranged opposite the oscillating plate via a gap...
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7326357 |
Method of fabricating printhead IC to have displaceable inkjets
A method of fabricating an inkjet printhead IC is provided which includes etching a circuitry layer to define first regions, depositing thermally expandable material thereover, etching the...
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7325904 |
Printhead having multiple thermal actuators for ink ejection
An inkjet printhead is provided including a substrate defining chambers for storing ink, with each chamber having an ink ejection port and actuators arranged to bend upon actuation to displace the...
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7325309 |
Method of manufacturing a fluid ejection device with a dry-film photo-resist layer
Methods of manufacturing a fluid ejection device comprise, in one embodiment, forming filler structures on a substrate and laminating a dry film onto the substrate over the filler structures. The...
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7320513 |
Bubble-ink jet print head and fabrication method thereof
A bubble-ink jet print head includes: a substrate having ink chambers to store ink and resistance heat emitting bodies to heat ink disposed thereover; and an ink supply passage which penetrates the...
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7320512 |
Liquid-jet recording head
An ink-jet recording head has two kinds of nozzles discharging different volumes of ink-drops. Large nozzles discharging larger ink-drops and small nozzles discharging smaller ink-drops are...
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7311386 |
Die attach methods and apparatus for micro-fluid ejection device
A micro-fluid ejection device structure, a multi-fluid cartridge containing the ejection device structure, and methods for making the ejection device structure and cartridge. The ejection device...
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7309119 |
Ink-jet recording apparatus
In an ink-jet recording apparatus, an active portion for jetting a pigment ink has an area greater than an area of an active portion for jetting a dye ink. Accordingly, the active portion for...
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7303262 |
Ink jet printhead chip with predetermined micro-electromechanical systems height
An inkjet printhead chip includes a wafer substrate ( 12 ). A CMOS drive circuitry layer is positioned on the wafer substrate. A plurality of nozzle arrangements is positioned on the wafer...
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7300596 |
Method of manufacturing liquid discharge head
The method of manufacturing a recording head has a flow path wall forming step of forming flow path walls on a substrate having energy generating elements formed thereon, an imbedded material...
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7293860 |
Droplet ejecting head
A droplet ejecting head including a nozzle plate having nozzle holes each ejecting a droplet and comprising: a jetting end open at a first surface of the plate; an inflow end open at a second...
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7293859 |
Liquid discharge head and method for manufacturing such head
A liquid discharge head includes a heater provided on an element substrate, a nozzle including a discharge port portion having a discharge port for discharging a liquid droplet, a bubbling chamber,...
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7293856 |
Bicuspid valved ink ejection arrangement for inkjet printhead
An ink ejection arrangement for an inkjet printhead is provided. The arrangement comprises an ink chamber, a nozzle defined in a first wall of the ink chamber and an ink ejector positioned within...
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7293855 |
Inkjet nozzle with ink supply channel parallel to drop trajectory
An inkjet drop ejection apparatus comprising:
a chamber with a nozzle; an elongate ink inlet channel for fluid communication with an ink supply; and, an actuator with associated drive...
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7287839 |
Inkjet printhead having bicuspid valved ink ejection arrangement
An inkjet printhead is provided comprising ink ejection arrangements of an ink chamber, a nozzle defined in a first wall of the ink chamber and an ink ejector positioned within an aperture defined...
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7287836 |
Ink jet printhead with circular cross section chamber
A thermal ink jet printhead with an array of nozzles 3 , each nozzle having heater elements 10 disposed in a bubble forming chamber 7 . The bubble forming chambers 7 having circular cross...
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7287834 |
Micro-electromechanical ink ejection device with an elongate actuator
A micro-electromechanical ink ejection device for a printer includes a wafer substrate defining an ink inlet channel and incorporating drive circuitry. A nozzle chamber structure is positioned on...
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7285226 |
Method for fabricating a fluid ejection device
A method of fabricating a fluid ejection device comprises providing a barrier layer which defines fluidic spaces. The fluidic spaces defined by the barrier layer are filled with filler. A...
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7284838 |
Nozzle arrangement for an inkjet printing device with volumetric ink ejection
A nozzle arrangement for an inkjet printhead, the nozzle arrangement including a substrate that incorporates drive circuitry and defines an ink chamber and an ink supply channel in fluid...
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7284837 |
Fluid ejection device with micro-electromechanical fluid ejection actuators
A fluid ejection device includes a substrate that defines a plurality of fluid inlets. A drive circuitry layer is positioned on the substrate. Elongate micro-electromechanical actuators are each...
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7284834 |
Closure member for an ink passage in an ink jet printhead
A closure member for each of the plurality of ink passages in an ink jet printhead chip that is the product of an integrated circuit fabrication technique includes a wafer substrate having a front...
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7284833 |
Fluid ejection chip that incorporates wall-mounted actuators
A fluid ejection chip includes a substrate. A plurality of nozzle arrangements is positioned on the substrate. Each nozzle arrangement includes a nozzle chamber defining structure which defines a...
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7284826 |
Printer with elongate support structure for printhead
A printer includes an elongate support structure for a printhead assembly. At least one elongate printhead module is positioned on the support structure, along a length of the support structure....
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7281783 |
Fluid ejection device
A fluid ejection device includes a chamber, a first fluid channel and a second fluid channel each communicated with the chamber, a first peninsula extended along the first fluid channel and a...
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7278712 |
Nozzle arrangement with an ink ejecting displaceable roof structure
A nozzle arrangement is provided for an inkjet printhead. The nozzle arrangement includes a wafer substrate assembly defining an ink inlet channel and a first wall surrounding the ink inlet...
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7278711 |
Nozzle arrangement incorporating a lever based ink displacement mechanism
A nozzle arrangement is provided for an ink printer. The arrangement includes a support defining an ink inlet channel. The arrangement includes a wafer substrate, an electrical drive circuitry...
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7278709 |
Photo-curable resin composition, method of patterning the same, and ink jet head and method of fabricating the same
A photo-curable resin composition, a method of patterning the same, an ink jet head, and a method of fabricating the same. The photo-curable resin composition includes an epoxy compound, a...
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7275814 |
Monolithic printhead with multiple ink feeder channels and relative manufacturing process
A thermal ink jet printhead ( 40 ) for the emission of drops of ink on a print medium ( 46 ) comprises a tank ( 103 ) containing ink ( 142 ), a lamina ( 67 ), a groove ( 45 ) and a plurality of...
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7275813 |
Beam, ink jet recording head having beams, and method for manufacturing ink jet recording head having beams
A beam having a base material of silicon monocrystal and at least one projection which is integrally formed so as to be supported at least at one end thereof and which has two surfaces having an...
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7275308 |
Method for manufacturing a monolithic ink-jet printhead
A method for manufacturing the same, wherein the monolithic ink-jet printhead includes a manifold for supplying ink, an ink chamber having a hemispheric shape, and an ink channel formed...
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7270399 |
Printhead for use with a pulsating pressure ink supply
A printhead includes a substrate that defines a plurality of ink inlet channels. Drive circuitry is positioned on the substrate. A pair of sets of nozzle arrangements is positioned on the...
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7267431 |
Multi-fluid ejection device
A multi-fluid body and an ejection head substrate connected in fluid flow communication with the multi-fluid body for ejecting multiple fluids therefrom. The multi-fluid body includes at least two...
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7264343 |
Droplet deposition apparatus
An ink jet printer with ink flowing through an ink chamber and over an ink ejection port leading to a nozzle has a deflection surface such as a chamfer at the junction of the chamber and the...
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7264335 |
Ink jet printhead with conformally coated heater
There is disclosed an ink jet printhead which includes a plurality of nozzles and one or more heater elements corresponding to each nozzle. Each heater element is configured to heat a bubble...
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7258425 |
Printhead incorporating leveraged micro-electromechanical actuation
A printhead for an inkjet printer comprises a substrate. A drive circuitry layer is positioned on the substrate. A plurality of micro-electromechanical ink ejection assemblies is formed on the...
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7255425 |
Ink-channel wafer integrated with CMOS wafer for inkjet printhead and fabrication method thereof
An ink-ejection unit of an inkjet printhead integrates an ink-channel wafer onto a CMOS wafer with a heating element fabricated therein. A nozzle film with a nozzle orifice is formed on the...
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7255424 |
Ink nozzle
The present invention relates to an ink nozzle. The ink nozzle includes a lever terminating with a piston head at one end and a first magnetic pole at the other end. The first magnetic pole defines...
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7252370 |
Inkjet printing head
An inkjet printing head includes: an actuator unit; and a flow path unit onto whose surface the actuator unit is fixed, the flow path unit including: a common ink chamber having a plurality of...
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7252369 |
Inkjet printer head and inkjet printer
An inkjet printer head including: (a) a front head unit having (a-i) an outside surface which is to be opposed to a print media, (a-ii) an inside surface opposite to the outside surface, (a-iii) a...
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7252367 |
Inkjet printhead having paddled inkjet nozzles
An inkjet printhead is provided having a plurality of ink ejection nozzles. Each nozzle has a displaceable actuator arm, a paddle for ejecting ink through an aperture defined in a roof of the...
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7251591 |
Consistent back pressure for piezoelectric ink-jet simulation
A consistent back pressure formulation is introduced into ink-jet simulation models and algorithms to solve an instability problem that occurs as the head of an ink droplet reaches the end of the...
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7249824 |
Liquid discharge head having inductive channel and recording device incorporating liquid discharge head
An ink print head reducing ink supply errors caused by air bubbles in order to stably supply ink at larger amounts. The ink print head includes an ink container for holding ink, a recording element...
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7249823 |
Fluid ejection device
A fluid ejection device, a method and an operation method thereof are disclosed. The fluid ejection device includes a substrate, a beam and an activation pad. The substrate has an orifice, and the...
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7246883 |
Motion transmitting structure for a nozzle arrangement of a printhead chip for an inkjet printhead
A printhead chip for an inkjet printhead includes a plurality of nozzle arrangements ( 100 ) positioned on a substrate ( 32 ). Each nozzle arrangement includes a chamber structure defining a nozzle...
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