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Class 347/54 - Drop-on-demand


Subclass of Class 347 - Incremental printing of symbolic information
Definition: Subject matter wherein the ejection mechanism is intermittently
No. of patents: 1318
Last issue date: 05/08/2012


          11            
NumberTitleIssue Date
7322686Thermal ink jet with chemical vapor deposited nozzle plate
There is disclosed an ink jet printhead which comprises a plurality of nozzles and one or more heater elements (10) corresponding to each nozzle. Each heater element (10) is configured to heat a bubble forming liquid (11) in the printhead to a t...
01/29/2008
7313945Cantilevers for sensing fluid properties
A system for sensing a property of a fluid comprises a fluid channel operable to receive the fluid therein, a flexible arm having a free end positioned within at least a portion of the fluid channel, a fluid actuator disposed sufficiently close to the flexible arm s...
01/01/2008
7311384Ink jet head, control method therefor, and ink jet recording apparatus
The present invention provides a control method for controlling an ink jet head. The inkjet head includes an ejection port substrate having ejection ports for ejection of the droplets, ejection electrodes respectively being located in a position corresponding to eac...
12/25/2007
7311374Liquid discharge cartridge and liquid discharge apparatus
A head cartridge has a print head which discharges ink, and an ink tank which contains ink which is supplied to the print head. A sensor which detects residual ink amount in the ink tank is provided in the ink tank. The print head includes a detection circuit which ...
12/25/2007
7312440Integrated micro fuel processor and flow delivery infrastructure
Apparatus for transporting a fluid, atomizers, reactors, integrated fuel processing apparatus, combinations thereof, methods of atomizing reactants, methods of moving fluids, methods of reverse-flow in a reactor, and combinations thereof, are provided. One exemplary...
12/25/2007
7309630Method for forming patterned media for a high density data storage device
Systems in accordance with the present invention can include a tip contactable with a media, the media including a substrate and a plurality of cells disposed over the substrate, one or more of the cells being electrically isolated from the other of the cells by a m...
12/18/2007
7306326Thermal ink jet printhead with low heater mass
There is disclosed an ink jet printhead which comprises a plurality of nozzles and one or more heater elements (10) corresponding to each nozzle. Each heater element (10) is configured to heat a bubble forming liquid in the printhead to a temperature a...
12/11/2007
7305764Method of manufacturing an ink-jet recording head
An ink-jet recording head has a plate-shaped member including a first layer with a partition wall formed by a first etching process and defining a pressure chamber, an ink inlet passage and a common ink storage chamber, a second layer with a land formed by a second ...
12/11/2007
7303262Ink 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 substrate and the CMOS drive circuitry layer. Each nozzle arrangement in...
12/04/2007
7303263Thermal ink jet printhead with high nozzle areal density
There is disclosed an inkjet printhead which comprises a plurality of nozzles (3) and one or more heater elements (10) corresponding to each nozzle (3). Each heater element is configured to heat a bubble forming liquid in the printhead to a temp...
12/04/2007
7299552Methods for creating channels
Methods of creating an internal channel of a fluid-ejection device are provided. One method includes encapsulating a channel core in an element of the fluid-ejection device that corresponds to the internal channel and dissolving at least a portion of the channel cor...
11/27/2007
7300139Ink jet recording apparatus using charged fine particle-containing ink
The ink jet recording apparatus includes an ink jet head that causes an electrostatic force to act on ink containing charged colored particles based on an image signal to eject an ink droplet on a recording medium, an ink supply unit that supplies the ink to the ink...
11/27/2007
7300596Method 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 depositing step of depositing an imbedded material between the flow path w...
11/27/2007
7296879Liquid ejection head and method of producing the same
The liquid ejection head ejects droplets by causing an electrostatic force to act on a solution in which charged particles are dispersed. The head includes a solution guide mounted at a position corresponding to a through-hole on a first surface of an insulating hea...
11/20/2007
7293856Bicuspid 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 an aperture defined in an opposite, second wall of the ink chamber. Th...
11/13/2007
7293855Inkjet 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 circuitry for...
11/13/2007
7293359Method for manufacturing a fluid ejection device
A method for manufacturing a fluid ejection device includes providing a sacrificial structure substantially overlying a semiconductor substrate. The structure has a shape configured to define an ink chamber, ink manifold, and a nozzle. The method also includes provi...
11/13/2007
7290863Ink jet printhead chip with misdirected drop collection
An ink jet printhead chip includes a substrate that defines a plurality of ink inlet channels. Drive circuitry is positioned on the substrate. A plurality of nozzle arrangements is positioned on the substrate. Each nozzle arrangement defines a nozzle chamber in flui...
11/06/2007
7290868Inkjet head with formed external circuit connecting electrodes
There are provided driving electrodes (25) on walls (24) separating both sides of individual ink chambers (22) formed in the form of an array of multiple grooves. External circuit connecting electrodes (11) for connecting these driving el...
11/06/2007
7291214Ink, ink set, ink jet recording method, ink cartridge and ink jet recording apparatus
An ink to be used in an ink jet recording method of ejecting an ink from a recording head through action of thermal energy can improve the ink ejection stability. An ink to be used in an ink jet recording method of ejecting an ink from a recording head through actio...
11/06/2007
7290862Modular printhead assembly with carrier for maintaining data and power connections
A printhead assembly for an inkjet printer includes an elongate carrier. A number of printhead modules are mounted on the carrier. Each printhead module includes an ink delivery assembly and a printhead chip mounted on the ink delivery assembly. Flexible printed cir...
11/06/2007
7290859Micro-electromechanical integrated circuit device and associated register and transistor circuitry
A micro-electromechanical integrated circuit includes a substrate. Drive circuitry is positioned on the substrate. A plurality of elongate actuators is fast at one end with the substrate. An opposite end of each elongate actuator is displaceable relative to the subs...
11/06/2007
7290853Inkjet printhead with a two dimensional array of ink ejection nozzle arrangements
A printhead is provided for an inkjet printer. The printhead includes a wafer substrate assembly defining a plurality of spaced apart groups of ink inlet channels. Groups of ink ejection nozzle arrangements extend from the wafer substrate assembly and are in fluid c...
11/06/2007
7287834Micro-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 the wafer substrate and includes a wall that defines a slot extending ...
10/30/2007
7287827Printhead incorporating a two dimensional array of ink ejection ports
A printhead is provided for an inkjet printer. The printhead includes a wafer substrate assembly defining rows of evenly spaced ink inlet channels. Rows of ink ejection nozzle arrangements extend from the wafer substrate assembly and are in fluid communication with ...
10/30/2007
7287837Thermoelastic inkjet actuator with a heat conductive layer
A thermoelastic actuator to be arranged in an inkjet printer comprises an active heater layer and at least one passive thermal, conductor layer. A thermal insulator is located between the heater layer and said at least one thermal conductor layer. The at least one t...
10/30/2007
7287839Inkjet 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 in an opposite, second wall of the ink chamber. The ink chamber is ar...
10/30/2007
7287831Printhead integrated circuit adapted for adhesive bonding
A printhead integrated circuit suitable for bonding to a mounting surface of an ink manifold using an adhesive is provided. The printhead integrated circuit comprises: a plurality of nozzles formed on a front side of the printhead integrated circuit; a plurality of ...
10/30/2007
7284837Fluid 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 fast at a first end to the substrate to be connected to the drive circu...
10/23/2007
7284838Nozzle 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 communication with the ink channel. A cover is fast with the substrate to cover...
10/23/2007
7284836Nozzle arrangement including an actuator
A nozzle arrangement 1 for use in an ink jet print head, the nozzle arrangement 1 comprising a substrate, a nozzle chamber 2 positioned at least partially on the substrate, a channel 3, in fluid communication with the nozzle chamber 2
10/23/2007
7284833Fluid 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 nozzle chamber and which includes a wall in which a fluid ejection por...
10/23/2007
7284835Ink-jet head
A flow path unit of an ink-jet head includes a sub-manifold 5a communicating with nozzles and pressure chambers through ink supply ports 13a. The plural ink supply ports 13a are formed in the upper surface of the sub-manifol...
10/23/2007
7284829Inkjet printhead and process for producing the same
An inkjet printhead and process for producing the same, having at least an auxiliary actuator being added in the inkjet printhead structure, is able to increase the frequency response thereof and to increase the positioning precision and structure rigidity of the in...
10/23/2007
7284839Inkjet printhead with low power ink vaporizing heaters
There is disclosed an ink jet printhead which comprises a plurality of nozzles and one or more heater elements 10 corresponding to each nozzle. Each heater element 10 is configured to heat a bubble forming liquid 11 in the printhead to a tempera...
10/23/2007
7284834Closure 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 surface and a rear surface. A plurality of ink passages are defined t...
10/23/2007
7283280Ink temperature control for multiprinthead printer
This invention relates to a printer whereby ink is printed by being discharged as dots from a plurality of nozzles by means of pulses. To ensure high quality printed images it is necessary to ensuring that the size of all dots is consistent. Therefore there is provi...
10/16/2007
7281778High frequency droplet ejection device and method
In general, in one aspect, the invention features a method for driving a droplet ejection device having an actuator, including applying a multipulse waveform that includes two or more drive pulses to the actuator to cause the droplet ejection device to eject a singl...
10/16/2007
7281784Liquid discharge apparatus and method for discharging liquid
The liquid discharge apparatus includes a head having liquid dischargers capable of deflecting the trajectories of discharged droplets in a plurality of directions. At least two of the liquid dischargers neighboring each other are capable of discharging droplets in ...
10/16/2007
7279216Identifiable flexible printed circuit board and method of fabricating the same
The invention discloses an identifiable flexible printed circuit board (PCB) and a method of fabricating the same. The identifiable flexible PCB includes a flexible substrate, a conductive layer, and a printing ink layer. First, the conductive layer is formed over a...
10/09/2007
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