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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


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NumberTitleIssue Date
7374274Method of operating a microelectromechanical inkjet ejector to achieve a predetermined mechanical deflection
The present invention is directed to printing a pattern, such as an image or other indicia, onto a surface, and more specifically to printing a pattern onto a surface utilizing at least one microelectromechanical system (MEMS) actuator. The present invention in exem...
05/20/2008
7374695Method of manufacturing an inkjet nozzle assembly for volumetric ink ejection
A method is provided for manufacturing a printer nozzle. The method includes the step of depositing a metal layer upon a semi-conductor wafer. The metal layer defines a pair of protruding portions which each form a respective electrical contact. The method further i...
05/20/2008
7370941Fluid chamber configuration within an inkjet printhead
An inkjet printer has a plurality of ink ejection nozzles. Each nozzle includes a paddle (5) located in a chamber (2) which is moveable in a forward direction between a rest state and an ejection state, for ejecting fluid from the chamber through an ou...
05/13/2008
7370942Ink supply arrangement incorporating baffles in an ink distribution molding
An ink supply arrangement is provided for supplying ink to an inkjet printhead. The ink supply arrangement includes an elongate ink distribution molding defining a printhead channel in which the printhead can be received and sets of passages for supplying respective...
05/13/2008
7373083Camera incorporating a releasable print roll unit
A camera includes a housing. An image sensor is fixed with respect to the housing and is configured to capture images. A print roll unit is releasably mounted within the housing. The print roll unit includes an elongate core, in turn, including a plurality of ink su...
05/13/2008
7372145Bonded assembly having improved adhesive bond strength
A bonded assembly is provided. The bonded assembly comprises: (a) a first substrate having a plurality of etched trenches defined in a first bonding surface; and (b) a second substrate having a second bonding surface. The second bonding surface is bonded to the firs...
05/13/2008
7370940Liquid ejection head having improved durability against liquid, liquid cartridge having such a liquid ejection head, liquid ejection apparatus having such a liquid cartridge, image forming apparatus having such a liquid ejection apparatus, and manufacturing method of liquid ejecting head
A liquid ejection head includes therein a movable member, wherein the movable member is formed of lamination of at least three layers, at least one layer thereof having a free edge part covered with another layer. ...
05/13/2008
7372348Stressed material and shape memory material MEMS devices and methods for manufacturing
Disclosed is a MEMS device which comprises at least one shape memory material such as a shape memory alloy (SMA) layer and at least one stressed material layer. Examples of such MEMS devices include an actuator, a micropump, a microvalve, or a non-destructive fuse-t...
05/13/2008
7370944Liquid ejector having internal filters
A liquid drop ejector is provided. The ejector includes a liquid chamber and a liquid supply. Portions of the liquid chamber define a nozzle bore. A liquid supply passageway is positioned between the liquid chamber and the liquid supply. The liquid supply passageway...
05/13/2008
7367661Low-cost liquid droplet spray device and nozzle body
The invention concerns a nozzle body for a liquid droplet spray device for atomising a high viscous liquid substance such as perfume. A first and second substrate enclose a space for containing the liquid substance. Outlet means are arranged in the second substrate ...
05/06/2008
7367119Method for forming a reinforced tip for a probe storage device
Systems and methods in accordance with the present invention can include a tip contactable with a media. In an embodiment, the tip comprises a substantially hollow structure formed of a metal. The tip can be formed by depositing a first metal layer over silicon ther...
05/06/2008
7368396Dry etching methods
A process for etching semiconductor substrates using a deep reactive ion etching process to produce through holes or slots (referred to collectively as “slots”) in the substrates. The process includes applying a first layer to a first surface of substrate to pro...
05/06/2008
7367653Laser ink jet printer
An ink ejecting apparatus that rapidly heats a small volume of ink using radiative heating from pulsating laser light radiation (as opposed to surface conductive heating from a thin film electrical resistive heater). The laser light travels through a bubble that has...
05/06/2008
7367654Liquid ejecting apparatus and liquid ejecting method
The present apparatus includes: a liquid ejecting head having a nozzle plate with an ejecting hole through which a liquid is discharged, a conductive member disposed behind an object being processed opposite to the liquid ejecting head, a potential difference genera...
05/06/2008
7364276Continuous ink jet apparatus with integrated drop action devices and control circuitry
A continuous liquid drop emission apparatus is provided. The liquid drop emission apparatus is comprised of a liquid chamber containing a positively pressurized liquid in flow communication with at least one nozzle for emitting a continuous stream of liquid and a je...
04/29/2008
7364269Inkjet printhead with non-uniform width ink supply passage to nozzle
An inkjet printhead with nozzles 4 and liquid passages 31, 32 leading to each nozzle. The nozzles, ejection actuators 14, associated drive circuitry 22 and liquid passage 31, 32 being formed on and through a wafer 21 using l...
04/29/2008
7364270Fluid ejection device having an elongate micro-electromechanical actuator
A micro-electromechanical fluid ejection device includes a substrate that defines a fluid inlet channel and incorporates a wafer and CMOS layers positioned on the wafer. A nozzle chamber sidewall and roof are positioned on the substrate to define a nozzle chamber in...
04/29/2008
7364271Nozzle arrangement with inlet covering cantilevered actuator
A nozzle arrangement is provided for an inkjet printhead. The nozzle arrangement includes a substrate assembly defining an ink inlet channel. A nozzle extends from the substrate assembly. The nozzle defines a nozzle chamber in fluid communication with the ink inlet ...
04/29/2008
7364275Piezoelectric actuator of an ink-jet printhead and method for forming the same
A piezoelectric actuator for providing a driving force to a pressure chamber of an ink-jet printhead for ejecting ink by deforming a vibration plate, the vibration plate forming an upper wall of the pressure chamber, the piezoelectric actuator including a lower elec...
04/29/2008
7364277Apparatus and method of controlling droplet trajectory
A printhead has a fluid chamber having an orifice, an associated fluid drop forming mechanism, and an associated fluid drop steering device. The fluid drop forming mechanism is operable to apply to fluid present in the fluid chamber energy sufficient to cause a flui...
04/29/2008
7364257Capper assembly for a pagewidth printhead cartridge
A capping assembly caps a pagewidth printhead of an inkjet printer by moving into and out of a body that has a surface opposite the printhead, The surface has a slot in it open to the interior of the body, The body is configured to...
04/29/2008
7363110Gasket with curved configuration at peripheral edge
A gasket having the form of a frame is provided with a curved portion at an inner or outer periphery thereof. When used in combination with a similarly configured gasket, the two gaskets may together, upon compression, form a pinch seal. The curved portion may be pr...
04/22/2008
7360872Inkjet printhead chip with nozzle assemblies incorporating fluidic seals
An inkjet printhead chip includes a wafer substrate that defines a plurality of ink inlet channels. A drive circuitry layer is positioned on the wafer substrate. A plurality of nozzle assemblies is positioned on the wafer substrate. Each nozzle assembly includes a n...
04/22/2008
7360871Inkjet chamber with ejection actuator between inlet and nozzle
An inkjet drop ejection apparatus formed on a substrate by lithographic etching and deposition techniques. The ink inlet, the actuator and the nozzle being formed in three separate planes respectively, each plane being parallel to the plane of the substrate, such th...
04/22/2008
7360860System for mounting a capper assembly to a pagewidth printhead
A capping assembly for capping a pagewidth printhead of an inkjet printer. The capping assembly has a body configured to extend the length of the printhead and a capping element housed within said body and movable ...
04/22/2008
7357488Nozzle assembly incorporating a shuttered actuation mechanism
A nozzle assembly is provided for an inkjet printer. The assembly includes a wafer arrangement defining an ink supply channel. A border is constructed on the wafer arrangement and bounds the ink supply channel. A cover layer is constructed on the border to define a ...
04/15/2008
7357487Image forming apparatus using liquid with electrorheological properties and method of controlling same
The image forming apparatus comprises: a droplet ejection head which ejects a droplet of a liquid having electrorheological properties toward a recording medium; an electric field application device which applies an electric field to the droplet deposited on the rec...
04/15/2008
7357486Method of laser machining a fluid slot
A method of laser machining a fluid slot includes directing a UV laser beam towards a substrate with microelectronics to form a slot through the substrate. ...
04/15/2008
7357491Liquid ejection head and method of manufacturing liquid ejection head
The liquid ejection head comprises: a plurality of pressure chambers which contain liquid and are arranged in a two-dimensional matrix configuration; a plurality of nozzles which connect to the pressure chambers and eject the liquid; a diaphragm which forms one face...
04/15/2008
7357489Thermal ink jet printhead with heaters formed from low atomic number elements
There is disclosed an ink jet printhead which comprises a plurality of nozzles (3) and one or more heater elements (10) corresponding to each nozzle. Each heater element is configured to heat a bubble forming liquid in the printhead to a temperature ab...
04/15/2008
7354139Printhead substrate, printhead, head cartridge, and printing apparatus
A driving circuit layout can suppress an increase in the area of a head substrate in an inkjet printhead by adopting a driving method for supplying a predetermined current to a heater. A plurality of printing elements and a plurality of switching elements which are ...
04/08/2008
7351649Recording head unit and method of producing the same
A method of producing a recording head unit including: (A) a recording head including: a plurality of recording elements; and an actuator unit including a plurality of individual electrodes which respectively correspond to the recording elements; and (B) a printed w...
04/01/2008
7350906Ink supply arrangement incorporating sets of passages for carrying respective types of ink
An ink supply arrangement is provided for supplying ink to an inkjet printhead. The ink supply arrangement includes an elongate ink distribution molding, in turn, defining a printhead channel in which the printhead can be received. The ink distribution molding furth...
04/01/2008
7350903Inkjet printhead with common chamber and actuator material
An inkjet printhead with an array of drop ejectors, each having a chamber for holding ink, an actuator and a nozzle. The actuation of the actuator ejects ink through the nozzle, and at least one internal surface of the chamber and an ink engaging face of the actuato...
04/01/2008
7347534Inkjet printhead with apertured sealing film
A printhead for an inkjet printer, the printhead comprising: a printhead integrated circuit having an array of ink ejection nozzles formed on a substrate; a plurality of ink feed conduits for establishing fluid com...
03/25/2008
7347535Liquid ejection device with a commonly composed actuator and liquid ejector
A liquid-ejection integrated circuit device includes a substrate that defines a plurality of ink inlet channels. Integrated circuitry is positioned on the substrate. A plurality of nozzle chamber structures is positioned on the substrate. Each nozzle chamber structu...
03/25/2008
7347536Ink printhead nozzle arrangement with volumetric reduction actuators
An ink jet printhead nozzle arrangement includes a wafer substrate that defines side walls and an inlet opening of an ink chamber. Drive circuitry is arranged on the wafer substrate A. roof wall assembly defines a roof of the ink chamber and an ink ejection port in ...
03/25/2008
7347952Method of fabricating an ink jet printhead
An ink jet printhead chip includes a wafer substrate. 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 includes nozz...
03/25/2008
7347537High efficiency thermal ink jet printhead
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...
03/25/2008
7341332Ink-jet printhead and manufacturing method thereof
An ink-jet printhead and a manufacturing method thereof include a substrate on which a space portion is formed, a passage plate installed on the substrate in which an ink chamber is formed to store ink, a nozzle plate installed at a top surface of the passage plate ...
03/11/2008
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