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6789880 |
Microinjector for jetting droplets of different sizes
A microinjector uses bubbles as virtual valves to eject droplets of different sizes. The microinjector is in fluid communications with a reservoir and has a substrate, an orifice layer, and a...
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6779877 |
Ink jet printhead having a channel plate with integral filter
A printhead for use in an ink jet printing device includes a heater substrate having a plurality of heating elements and an intermediate layer disposed adjacent the heater substrate. The...
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6776915 |
Method of manufacturing a fluid ejection device with a fluid channel therethrough
A monolithic inkjet printhead is formed using single-side fabrication processes. Printing elements and feed channels are formed by processes working from a top of the die. During formation of the...
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6773092 |
Liquid discharging head and liquid discharging device
A liquid discharging head has a heat generating member in which there is a bubbling region involved in the generation of the bubble. A center of the width of the heat generating member and a center...
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6767082 |
Systems and methods for varying fluid path geometry for fluid ejection system
A variable geometry fluid ejection system can be used to minimize a separation between a main drop and satellite drop on a recording medium in a bi-directional fluid ejection system. The geometry...
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6761435 |
Inkjet printhead having bubble chamber and heater offset from nozzle
In an inkjet printhead, a substantially rectangular heater element has an aspect ratio greater than about 2.0. A bubble chamber surrounds a centrally disposed heater element with a plurality of...
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6761434 |
Liquid discharge head, element substrate, liquid discharging apparatus and liquid discharging method
A liquid discharge head includes plural heat generating members, each linearly communicating with a discharge port, a liquid flow path communicating with each discharge port and having a bubble...
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6761432 |
Ink jet recording head and ink jet recording apparatus
An ink jet recording head and an ink jet recording apparatus which can be manufactured at low cost and with a continuous length by using nonlinear elements having MIM-type electrical...
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6752489 |
Liquid ejection head and method of manufacturing the liquid ejection head
In a liquid ejection head comprising a plurality of opened liquid flow passages arranged side by side and communicating with ejection orifices through which a liquid is ejected, and thermal energy...
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6751865 |
Method of making a print head for use in a ballistic aerosol marking apparatus
A method of making a print head is disclosed for use in a marking apparatus in which a propellant stream is passed through a channel and directed toward a substrate. Marking material, such as ink,...
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6749288 |
Jet head box
A jet head box for a semiconductor substrate and nozzle plate containing fluid jet actuators. The jet head box includes an elongate substantially rigid body having a first surface and a second...
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6749290 |
Recording unit, image recording apparatus and image recording method
A recording unit and an image recording apparatus are of a configuration in which the black image and character formed by the black ink in the presence of the color ink satisfy various properties...
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6749289 |
Liquid ejection apparatus and inkjet printer, and method of manufacturing them
The liquid ejection apparatus includes nozzles formed in a member provided on one side of a substrate, droplet ejection units each of which corresponds to one of the nozzles, and which are formed...
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6746107 |
Inkjet printhead having ink feed channels defined by thin-film structure and orifice layer
An inkjet printhead includes a substrate having an ink feed slot formed therein. The inkjet printhead includes drop generators and ink feed channels. Each drop generator has a nozzle and a...
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6746106 |
Fluid ejection device
Fluid ejection device includes a substrate having a top surface and a bottom surface. A plurality of fluid drop generators are formed on the top surface of the substrate along a shelf region, each...
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6746105 |
Thermally actuated ink jet printing mechanism having a series of thermal actuator units
An inkjet nozzle arrangement includes a nozzle chamber having an fluid ejection nozzle in one surface of the chamber; a paddle vane located within the chamber, the paddle vane being adapted to be...
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6742873 |
Inkjet printhead construction
An inkjet printhead constructed by micro-electromechanical systems (MEMS) processing techniques includes a plurality of ink ejection nozzles, each nozzle defining a nozzle chamber. The printhead...
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6719408 |
Liquid ejecting head, head cartridge, and liquid ejecting and recording apparatus
In a liquid ejecting head having a first liquid flow path communicating with an ejecting port for ejecting a liquid to be ejected and an element substrate having a heating element for forming a...
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6712454 |
Ink jet recording head and ink jet recording apparatus
An ink jet recording head has a plurality of ejectors and an ink supply system. Each of the plurality of ejectors has a pressure generating chamber, a nozzle communicating with the pressure...
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6702429 |
Ink chamber structure for an inkjet printhead
An ink chamber structure for an inkjet printhead, comprising a plurality of ink channels and a plurality of ink chambers arrayed in columns, with each of such plurality of ink chambers...
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6698868 |
Thermal drop generator for ultra-small droplets
A thermal-type drop generator for ejecting droplets of liquid having ultra-small volumes. In one embodiment the drop generator includes a chamber defined in part by an orifice member. The chamber...
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6698092 |
Methods and systems for forming a die package
The described embodiments relate to methods and systems for forming die packages. In one exemplary embodiment, the method for forming die packages contacts interface areas of a die assembly to keep...
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6693656 |
Laser processing method, method for manufacturing ink jet recording head using such method of manufacture, and ink jet recording head manufactured by such method of manufacture
A laser processing method for performing laser ablation process on a work piece by radiating laser beam on the work piece includes the step of forming simultaneously a plurality of process shapes...
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6692112 |
Monolithic ink-jet printhead
A monolithic ink-jet printhead, and 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,...
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6685304 |
Printer, printer head and method of producing the print head to promote reliable bonding of print head structures
A printer, a printer head, and a method of producing the printer head in which ink drops are caused to flow out by heat, so that an orifice plate can be bonded by sufficiently bringing it into...
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6684504 |
Method of manufacturing an imageable support matrix for printhead nozzle plates
An imageable support matrix for printhead nozzle plates and a method for manufacturing the printhead. The ink jet printhead comprises a substrate including an ink via therein; a first layer of...
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6676244 |
Bubble-jet type inkjet printhead
A bubble-jet type inkjet printhead is disclosed, wherein a manifold for supplying ink, an ink chamber having a substantially hemispherical shape and filled with ink to be ejected, and an ink...
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6669335 |
Ink-jet printing head and ink-jet printing apparatus
An ink-jet printing head and an ink-jet printing apparatus can reduce fluctuation of density of an ink ejected from each nozzle by ejecting ink of different densities from the same nozzle without...
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6669336 |
Ink jet printhead having an integral internal filter
An ink jet printhead has an upper substrate containing a reservoir with ink inlet and a lower substrate having a linear array of droplet generating elements and addressing electrodes thereon. At...
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6663229 |
Ink jet recording head having movable member and restricting section for restricting displacement of movable member, and method for manufacturing the same
The present invention provides a method for manufacturing an ink jet recording head utilizing ink bubbling by heating of an exothermic resistor to thereby eject ink and a method manufacturing the...
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6663230 |
Liquid ejection head, apparatus and recovery method for them
A liquid ejection head includes an ejection outlet for ejecting liquid; a bubble generating region for generating a bubble; a movable member disposed faced to the bubble generating region and...
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6659594 |
Inkjet recording head and inkjet recording apparatus
In an inkjet recording head having a plurality of ink ejecting ports and a plurality of energy generating elements respectively positioned in confrontation with the ink ejecting ports for...
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6659597 |
Liquid discharge head
A liquid discharge head has an element base plate provided with a plurality of heat generating members and electrode wiring formed by thin-filmed electrode and common thick-filmed electrode for...
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6659595 |
Liquid jet recording head
A recording element substrate has a plurality of recording elements are provided, a wiring sheet is provided at a position to surround a periphery of the recording element substrate to transmit a...
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6655789 |
Ink jet print head
An ink jet print head comprises a substrate formed with a heating resistor, an ink path defining member for defining an ink supply path, and a orifice plate, and in the orifice plate, there is...
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6652068 |
Compact printhead and method of delivering ink to the printhead
This present invention provides an ink jet printhead and method of delivering ink to the printhead. The printhead has a substrate, a nozzle layer, and a plurality of bubble generators. A plurality...
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6652077 |
High-density ink-jet printhead having a multi-arrayed structure
A high-density ink-jet printhead, in which a plurality of nozzles, through which ink is ejected, are arrayed on an ink supply manifold in a plurality of rows is provided, wherein the ink-jet...
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6652079 |
Ink jet recording head with extended electrothermal conversion element life and method of manufacturing the same
An ink jet recording head that is capable of avoiding damages due to cavitation of an electrothermal converting element and thus extending its life is provided. The ink jet recording head comprises...
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6652078 |
Ink supply arrangement for a printer
A printhead assembly includes an elongate pagewidth ink distribution housing that has a longitudinal extent in a pagewidth direction and conveys ink to a number of ink ejection nozzles spanning the...
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6652076 |
Liquid ejecting head, liquid ejecting device and liquid ejecting method
A liquid ejecting method for ejecting liquid by generation of a bubble includes preparing a head comprising an ejection outlet for ejecting the liquid, a bubble generation region for generating the...
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6644791 |
Ink jet printhead having efficient heat dissipation and removal of air
A printhead for use in an ink jet printing device includes a nozzle plate which defines a plurality of droplet-emitting nozzles and a printhead housing bonded to the nozzle plate. A heater...
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6644789 |
Nozzle assembly for an ink jet printer
An ink jet nozzle assembly includes a heater substrate and a nozzle plate. The nozzle plate includes a first resist layer having a first side laminated onto the heater substrate. The first resist...
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6637867 |
Liquid discharge head, head cartridge provided with such head, liquid discharge apparatus and method for discharging liquid
A liquid discharge head comprises a separation member for separating the discharge liquid flow paths communicated with discharge ports for discharging discharge liquid to enable discharge liquid to...
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6631979 |
Thermal actuator with optimized heater length
An apparatus for a thermal actuator for a micromechanical device, especially a liquid drop emitter is disclosed. The disclosed thermal actuator includes a base element and a cantilevered element...
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6626522 |
Filtering techniques for printhead internal contamination
Techniques are described for constructing filter type features capable of entrapping particle contaminants to eliminate printing defects. These techniques utilize photo-imageable barrier material...
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6619779 |
Ink-jet printer head
An ink-jet printer head includes a base plate having ink channels penetrating through the base plate, through which ink is supplied, a hollow heat driving section formed in the base plate and...
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6618943 |
Method of manufacturing a droplet deposition apparatus
A drop-on-demand piezo-electric printhead has channel walls defined by piezo-electric material ( 10 ) with electrodes ( 26 ) along the length thereof. In portions of the channels which are open to...
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6609784 |
Ink jet recording device and a method for designing the same
An ink jet recording head includes an ink supply system, and a plurality of pressure chambers each including a nozzle for ejecting an ink droplet. The ink supply system has a flow resistance r...
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6598961 |
Bubble-jet type ink-jet printhead
A bubble-jet type ink-jet printhead, includes a substrate, a nozzle plate, a wall, and a heater, wherein the heater is interposed between the substrate and the nozzle plate to divide an ink chamber...
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6595625 |
Liquid discharging method accompanied by the displacement of a movable member, a liquid jet head for implementing such method, and a liquid jet apparatus for the implementation thereof
A liquid discharging method comprises the step of displacing the free end of the movable member following the creation of air bubble in the air bubble generating area. For this method, the fulcrum...
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