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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: 1313
Last issue date: 02/14/2012


1                      
NumberTitleIssue Date
8113629Inkjet printhead integrated circuit incorporating fulcrum assisted ink ejection actuator
An inkjet printhead integrated circuit includes a substrate; a drive circuitry layer positioned on the substrate, the substrate and the drive circuitry layer defining a plurality of ink inlet channels; nozzle chamber walls positioned on the substrate, the nozzle cha...
02/14/2012
8113628Inkjet printers having micro-fluidic actuators
A printer includes (a) an ink reservoir containing ink and having an outlet through which the ink passes for ejection onto a print medium; (b) a micro-fluidic actuator having (i) an inlet channel through which fluid enters; (ii) a chamber through which the fluid is ...
02/14/2012
8113627Micro-fluidic actuator for inkjet printers
An inkjet printing device includes an ink reservoir containing ink and having an outlet through which the ink passes for ejection onto a print medium; a micro-fluidic actuator having at least (i) an inlet channel through which fluid enters; (ii) a chamber through wh...
02/14/2012
8109611Translation to rotation conversion in an inkjet printhead
An inkjet printhead with a plurality of nozzle arrangements that each have a nozzle chamber and an ink ejection port that is in fluid communication with the nozzle chamber. The nozzle arrangements also have an actuator configured for rectilinear movement, and an ink...
02/07/2012
8096642Inkjet nozzle with paddle layer arranged between first and second wafers
An inkjet nozzle includes a first wafer having active drive circuitry together with an ink jet print nozzle formed therein; a second wafer having an ink channel formed therein; and a paddle layer sandwiched between the first and second wafers in a chamber complement...
01/17/2012
8091986Nozzle arrangement including active and static ink ejecting members defining variable-volume chamber
A nozzle arrangement for an inkjet printhead includes an ink inlet; a static ink ejecting member bounding the ink inlet; an active ink ejecting member having a roof defining an ink ejection port and sidewalls depending from the roof towards the substrate, the active...
01/10/2012
8087755System for printing 3D semiconductor products
A system for printing three-dimensional semiconductor products. The system includes printheads for printing various so as to create a three-dimensional structure including cavities, and a robot for incorporating semiconductor objects into the cavities created during...
01/03/2012
8087754Electrostatic actuator, droplet discharge head, method for driving droplet discharge head, and method for manufacturing electrostatic actuator
To provide an electrostatic actuator capable of attaining a large diaphragm displacement by low voltage drive. Furthermore, a droplet discharge head provided with this electrostatic actuator, a method for driving a droplet discharge head, and a method for manufactur...
01/03/2012
8079668Crack-resistant thermal bend actuator
A thermal bend actuator comprises an active beam for connection to drive circuitry and a passive beam mechanically cooperating with the active beam. When a current is passed through the active beam, the active beam expands relative to the passive beam resulting in b...
12/20/2011
8079669Printhead with high drag nozzle chamber inlets
A printhead that has an array of ink ejection nozzles, an array of chambers adapted to store ink for ejection through each of the nozzles respectively, a silicon substrate for supporting the array of chambers and defining a plurality of ink inlet channels for feedin...
12/20/2011
8079670Printhead having nozzles with stacked capacitive actuators
A printhead is provided having a fluid ejection nozzles which each have a substrate, a layer of drive circuitry deposited on the substrate, and subsequent etchant layers deposited on the drive circuitry to define a nozzle chamber with walls and a roof structure defi...
12/20/2011
8075099Printer with controller for generating combined print data and clock signal
An inkjet printer that has a printhead IC an array of nozzles for ejecting drops of printing fluid onto a media substrate and drive circuitry for driving the array of nozzles and, a print engine controller (PEC) for sending print data to the printhead IC. The drive ...
12/13/2011
8070260Printhead having displacable nozzles
A printhead is provided having a plurality of nozzles defined on a substrate. Each nozzle is configured to hold fluid and has an ejection port and an actuator for moving the nozzle relative to the substrate to eject the held fluid through the ejection port. ...
12/06/2011
8061811Micro-fluid ejection heads with chips in pockets
Micro-fluid ejection heads and methods for fabricating micro-fluid ejection heads are provided, including those that use a non-conventional substrate and methods for making large array micro-fluid ejection heads. One such ejection head includes a substrate having a ...
11/22/2011
8061812Ejection nozzle arrangement having dynamic and static structures
An ejection nozzle arrangement is provided having a fluid chamber having a wall and a fluid port, an arm extending through an aperture in the wall, a dynamic structure cantilevered from the wall adjacent the aperture, a static structure cantilevered from the wall ad...
11/22/2011
8057016Micro-electromechanical nozzle arrangement with motion conversion coupling structures
The invention provides for a micro-electromechanical nozzle arrangement on a substrate with motion conversion coupling structures. The structures operatively link a thermal actuator and a roof structure of the nozzle arrangement. The roof structure defines an ejecti...
11/15/2011
8052249Liquid discharge head, liquid supply cartridge, and liquid jet apparatus having electrostatic actuator formed by a semiconductor manufacturing process
An approach applying a semiconductor manufacturing process in the manufacturing of an electrostatic actuator, such as for a droplet discharging head, liquid supply cartridge, inkjet recording apparatus and/or liquid jet apparatus, is provided. Such electrostatic act...
11/08/2011
8047632Ink jet recording head
An ink jet recording head includes an ejection outlet for ejecting ink; an energy generating element, provided on a silicon substrate, for generating energy for ejecting the ink from the ejection outlet; an ink flow passage, provided correspondingly to the energy ge...
11/01/2011
8042911Liquid dispenser head, liquid dispensing unit using same, and image forming apparatus using same
A liquid dispenser head includes nozzles, pressure chambers, an energy generator, a shared chamber, a vibration member, and a specific wall portion. The nozzles discharge liquid. Each of the pressure chambers communicates with a corresponding one of the nozzles. The...
10/25/2011
8033646Liquid drop dispenser with movable deflector
A liquid dispenser includes a liquid supply channel and a liquid ejector channel that includes an outlet opening. A liquid supply provides a flow of a pressurized liquid through the liquid ejector channel from the liquid supply channel. The pressurized liquid has a ...
10/11/2011
8033647Liquid drop dispenser with movable deflector
A liquid dispenser includes a liquid supply channel and a liquid ejector channel that includes an outlet opening. A liquid supply provides a flow of a pressurized liquid through the liquid ejector channel from the liquid supply channel. The pressurized liquid has a ...
10/11/2011
8029101Ink ejection mechanism with thermal actuator coil
A micro-electromechanical ejection mechanism is disclosed for ejecting an ink droplet. The mechanism has a wafer substrate and an ink chamber formed on the wafer substrate. The ink chamber has an ink ejection nozzle formed in a roof thereof and an ink inlet port for...
10/04/2011
8029102Printhead having relatively dimensioned ejection ports and arms
A printhead is provided having chambers for fluid, ejection ports defined in the chambers, and ejection arms positioned in the chambers, each arm having a displacement area which is displaced against fluid in the respective chamber to eject the fluid from the respec...
10/04/2011
8029100Micro-fluid ejection heads with chips in pockets
Micro-fluid ejection heads and methods for fabricating micro-fluid ejection heads are provided, including those that use a non-conventional substrate and methods for making large array micro-fluid ejection heads. One such ejection head includes a substrate having a ...
10/04/2011
8029099Nozzle assembly with thermal bend actuator for displacing nozzle
A nozzle assembly for an inkjet printhead includes a substrate assembly defining an ink inlet; a nozzle defining an opening through which ink is ejected, the nozzle including a crown portion and a skirt portion depending from the crown portion; wall portion extendin...
10/04/2011
8025365MEMS integrated circuit with polymerized siloxane layer
A MEMS integrated circuit comprises: a silicon substrate having a passivated CMOS layer, a MEMS layer disposed on the passivated CMOS layer, and a polymer layer disposed on the MEMS layer. The CMOS layer comprises drive circuitry for actuating actuator devices in th...
09/27/2011
8025366Inkjet printhead with nozzle layer defining etchant holes
An inkjet printhead for an inkjet printer includes a wafer substrate defining an ink supply channel therethrough; side wall portions extending away from a surface of the wafer substrate; a nozzle layer supported on the side wall portions and extending parallel to th...
09/27/2011
8020970Printhead nozzle arrangements with magnetic paddle actuators
A printhead has a plurality of nozzle arrangements. Each nozzle arrangement includes a wafer substrate defining a nozzle chamber, said chamber having a roof wall with an ink ejection port defined therein and an ink supply channel defined through the substrate for su...
09/20/2011
8007075Printhead having nozzle plate formed on fluid distributors
A printhead is provided having a nozzle plate having a plurality of nozzles defined therethrough and a plurality of adjacently arranged structures on which the nozzle plate is formed. The structures have a plurality of passages for distributing fluid to the nozzles ...
08/30/2011
7997685Nozzle arrangement with rectilinear ink ejection
Provided is a nozzle arrangement for an ink jet printer. The arrangement includes a wafer substrate with a layer of drive circuitry, said substrate defining an ink supply channel through the substrate leading to an ink chamber with a roof defining an ink ejection po...
08/16/2011
7997686Inkjet nozzle arrangement incorporating thermal differential actuator
A nozzle arrangement for an inkjet printhead includes a wafer substrate defining an inlet channel; a nozzle chamber wall and a roof wall positioned on the wafer substrate to define a nozzle chamber in fluid communication with the inlet channel, the roof wall definin...
08/16/2011
7984972Printhead unit cell having rimmed nozzle plate
A unit cell of a printhead is provided having a multi-layer substrate defining an ink inlet, one or more side walls extending from the substrate around the ink inlet, a nozzle plate supported by the side walls to define a chamber in fluid communication with the ink ...
07/26/2011
7980667Nozzle arrangement with pivotal wall coupled to thermal expansion actuator
A nozzle arrangement for an inkjet printhead includes a substrate assembly defining an ink inlet channel; a nozzle chamber in fluid communication with the ink inlet channel, the nozzle chamber including an ink ejection port defined through a roof of the nozzle chamb...
07/19/2011
7980670Inkjet printhead having selectively actuable nozzles arranged in nozzle pairs
An inkjet printhead includes a substrate having an array of nozzles grouped in nozzle pairs. Each nozzle pair has a common nozzle chamber and a single actuator configured to selectively eject ink from one or other of the nozzles in the nozzle pair. ...
07/19/2011
7980668Ejection arrangement for printhead nozzle
An ejection arrangement is provided for a printhead nozzle. The arrangement has a chamber having an inlet defined by edge portions of a first side of the chamber and an ejection port defined in a second side of the chamber, and an ejection member located in the cham...
07/19/2011
7980669Inkjet thermal actuator with parallel current paths
An inkjet printhead is disclosed. The printhead has an array of ink chambers. Each ink chamber has a nozzle and a thermal actuator for generating vapor bubbles to eject ink through the nozzle. The thermal actuator has a pair of contacts and at least two parallel cur...
07/19/2011
7976130Printhead micro-electromechanical nozzle arrangement with motion-transmitting structure
A micro-electromechanical nozzle arrangement for a printhead integrated circuit featuring a nozzle chamber capped by an ink ejection port includes a paddle located in the nozzle chamber below the ink ejection port; an actuator arm having a fixed end fixed to the sub...
07/12/2011
7976129Nozzle structure with reciprocating cantilevered thermal actuator
A nozzle structure for an inkjet printer printhead includes an ink ejection port; a nozzle chamber in fluid communication with the ink ejection port and an ink supply channel of the inkjet printer printhead; and a cantilevered thermal actuator terminating in a free ...
07/12/2011
7976127Electrostatic actuator, droplet discharge head, methods for manufacturing the same and droplet discharge apparatus
An electrostatic actuator includes a fixed electrode formed on a substrate, a movable electrode provided so as to oppose the fixed electrode with a predetermined gap therebetween, a driving unit generating electrostatic force between the fixed electrode and the mova...
07/12/2011
7976128Liquid transporting apparatus and printer
There is provided a liquid transporting apparatus which includes a substrate having an insulating surface, a plurality of liquid transporting channels, a common liquid chamber which supplies a liquid to the liquid transporting channels, a plurality of individual ele...
07/12/2011
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