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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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7244014 |
Micro-fluid ejection devices and method therefor
An improved ink jet printhead for an ink jet printer and method therefor. The printhead includes a semiconductor substrate containing ink ejection devices. A thick film layer is attached to the...
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7240992 |
Ink jet printhead incorporating a plurality of nozzle arrangement having backflow prevention mechanisms
An ink jet printhead includes a substrate that defines a plurality of ink inlets. A drive circuitry layer is positioned on the substrate. A plurality of nozzle arrangements is arranged on the...
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7234795 |
Inkjet nozzle with CMOS compatible actuator voltage
An inkjet drop ejection apparatus comprising:
a chamber with a nozzle and an ink inlet for fluid communication with an ink supply; and, an actuator with associated drive circuitry for...
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7229158 |
Protective layer of ink-jet print head and method of making ink-jet print head having the same
An ink-jet print head and a method of making the same comprising the steps of sequentially laminating a heating layer and an electric conductive layer on a substrate, patterning the electric...
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7229154 |
Ink ejection nozzle with a thermal bend actuator
An ink ejection nozzle comprises a chamber for holding ink to be ejected, the chamber having an opening defined in a roof structure; and a thermal bend actuator for ejecting droplets of ink from...
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7226145 |
Micro-electromechanical valve shutter assembly
A micro-electromechanical shutter assembly includes an elongate actuator that is anchored at one end to the wafer substrate to be in electrical contact with the drive circuitry layers. A closure...
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7222945 |
Fluid ejection apparatus
A fluid ejection apparatus. The fluid ejection apparatus includes a chamber, a manifold, an orifice, a first bubble generating element and a second bubble generating element. The chamber contains...
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7219982 |
Printer nozzle for ejecting ink
The present invention relates to a printer nozzle for ejecting ink. The printer nozzle includes a body defining a chamber in which the ink can be provided. The body has an ejection aperture through...
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7213907 |
Inkjet nozzle incorporating a cleaning structure
An inkjet nozzle comprises a substrate defining an ink supply channel. A wall is mounted to the substrate and surrounds the ink supply channel. A support is mounted to the substrate and an actuator...
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