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9016837 Ink jet printhead device with compressive stressed dielectric layer  
An ink jet printhead device includes a substrate and at least one first dielectric layer above the substrate. A resistive layer is above the at least one first dielectric layer. An electrode layer...
9004650 Liquid discharge head, cleaning method for liquid discharge head, liquid discharge apparatus, and substrate for liquid discharge head  
A substrate for a liquid discharge head includes an upper protection film that covers at least a region corresponding to each of thermal energy generation elements. The upper protection film and...
8991975 Liquid ejection head having structural modifications to film layers and method of manufacturing the same  
A liquid ejection head includes a substrate having a supply port that is a through-hole for supplying liquid; an energy generating element for generating energy to be used for ejecting the liquid;...
8925835 Microfluidic nozzle formation and process flow  
A method that includes forming a chamber in a substrate, forming a silicon layer overlying the chamber, etching the silicon layer to remove selected regions and retain a selected portion overlying...
8926067 Liquid discharging recording head  
A liquid discharging recording head includes an element substrate including a plurality of discharge ports configured to discharge liquid and a plurality of energy generating elements configured...
8888251 Planar heater stack and method for making planar heater stack with cavity within planar heater substrata above substrate  
A heater stuck includes first strata having a planar configuration supporting and forming a fluid heater element responsive to repetitive electrical activation and deactivation to produce...
8840227 Inkjet printhead having bilayered nozzle plate comprised of two different ceramic materials  
An inkjet printhead includes a bi-layered nozzle plate having a plurality of nozzle apertures. The bi-layered nozzle plate being includes a lower first nozzle plate formed from a first material...
8833363 Ejection liquid, ejection method, method for forming liquid droplets, liquid ejection cartridge and ejection apparatus  
An ejection liquid capable of being stably ejected based on a system using thermal energy even if the liquid contains at least one selected from the group consisting of proteins and peptides, and...
8820892 Inkjet printing head substrate, inkjet printing head and inkjet printing apparatus  
Second etching is performed to the bottom through dry etching of a substrate to suppress image degradation even if an opening position of an ejection opening at a substrate end deviates. Provided...
8757779 Inkjet printer having printhead and ink for minimizing corrosion of exposed corrodible structures within printhead  
An inkjet printer includes: an inkjet printhead having an exposed corrodible structure containing silicon nitride, borophosphosilicate glass (BPSG) or silicon oxide; and an ink reservoir...
8746850 Patterned heater traces for inkjet printhead  
A printhead for an ink jet printer can be formed as a plurality of substructures which are connected subsequent to inspection and/or testing. A substructure can include a semiconductor substrate...
8733871 AlCu hard mask process  
A process for forming a metal interconnection in an integrated circuit includes forming a first metal layer and a second metal layer on the first metal layer. Photoresist is placed on the second...
8721049 Inkjet printhead having suspended heater element and ink inlet laterally offset from nozzle aperture  
An inkjet printhead includes a plurality of nozzle chambers disposed on a substrate. Each nozzle chamber includes: a floor having an ink inlet defined therein; a roof having a nozzle aperture...
8721050 Liquid discharge head with protective layer and liquid discharge device  
A liquid discharge head, contains: an energy generating element which generates thermal energy and contains a heat generation resistant layer and a pair of electrode layers whose end surfaces are...
8721048 Substrate for liquid discharge head and liquid discharge head  
The reduction in reliably of a liquid discharge head due to the dissolution of a protective layer is suppressed. A substrate for a liquid discharge head includes a base substrate, a...
8696091 Screen printed jet stack heater  
Apparatus and methods for heating a printer jet stack. The apparatus includes a first layer and a second layer disposed generally parallel to the first layer. The apparatus also includes a heating...
8684499 Method for forming an aperture and actuator layer for an inkjet printhead  
A method enables multiple inkjet printhead dies to be manufactured by bonding a single wafer to a single polymer layer. Multiple die sites on the single wafer are arranged in a predetermined...
8684501 Fluid ejection device  
A fluid ejection device includes a thin film heater resistor portion having a heater resistor, and a two-layer structure disposed over the heater resistor. The two-layer structure includes a top...
8678555 Encapsulation of inkjet heater chip for ion beam cross-section polishing and method of preparing chip cross-section sample  
A method for preparing an integrated circuit or micro-electro-mechanical system chip sample for ion cross-section polishing is provided. The method includes preparing a polymer coating...
8678557 Substrate structure for ejection chip and method for fabricating substrate structure  
Disclosed is a substrate structure for an ejection chip that includes a first substrate layer, a second substrate layer disposed beneath the first substrate layer, and an intermediate layer...
8657411 Fluid ejection device and method for fabricating fluid ejection device  
Disclosed is a fluid ejection device that includes a nozzle plate. The nozzle plate includes a plurality of nozzles. Further, the fluid ejection device includes a flow feature layer. The flow...
8657414 Fluid-ejection printhead die having an electrochemical cell  
A fluid-ejection printhead die includes a fluid-ejection firing element and an electrochemical cell. The fluid-ejection firing element is to cause droplets of fluid to be ejected from the...
8622521 Inkjet printhead having titanium aluminium nitride heater elements  
An inkjet printhead has a plurality of nozzles; a bubble forming chamber corresponding to each of the nozzles; and a heater element disposed in each of the bubble forming chambers. The heater...
8625153 Multi-dimensional data registration integrated circuit for driving array-arrangement devices  
A multi-dimensional data registration integrated circuit is configured for driving array-arrangement devices. The array-arrangement devices comprise a plurality of first hierarchy sets, each which...
8567909 Printhead for inkjet printing device  
An inkjet printhead is provided for a digitally controlled inkjet printing apparatus wherein the inkjet printhead is comprised of a material layer and a drop formation mechanism positioned in or...
8556389 Low-profile MEMS thermal printhead die having backside electrical connections  
A thermal printhead die is formed from an SOI structure as a MEMS device. The die has a printing surface, a buried oxide layer, and a mounting surface opposite the printing surface. A plurality of...
8556390 Inkjet nozzle assembly having suspended beam heater element offset from nozzle aperture  
An inkjet nozzle assembly includes a nozzle chamber having a planar roof spaced apart from a floor. A heater element is suspended in the nozzle chamber and is configured as a planar beam extending...
8540349 Printhead having isolated heater  
A liquid ejector includes a substrate, a heating element, a dielectric material layer, and a chamber. The substrate includes a first surface. The heating element is located over the first surface...
8491087 Circuit board for ink jet head, ink jet head having the same, method for cleaning the head and ink jet printing apparatus using the head  
In an ink jet head using a thermal energy for ejecting ink, this invention aims to reliably and uniformly remove kogations deposited on a heat application portion in contact with the ink. To...
8491803 Method of hydrophobizing and patterning frontside surface of integrated circuit  
A method of hydrophobizing a frontside surface of an integrated circuit. The method includes the steps of: (a) depositing a hydrophobic polymeric layer onto the frontside surface; (b) depositing a...
8449078 Liquid discharge head with multi-section energy application chambers  
Provided is a liquid discharge head including a discharge port; an energy application chamber that includes a heat generating element, and communicates with the discharge port; and a flow path...
8444255 Power distribution in a thermal ink jet printhead  
A thermal inkjet printhead may include a substrate and a resistive layer. A thermal resistor may be formed in the resistive layer. A first metal layer may be between the substrate and a resistive...
8434850 Liquid discharge head and manufacturing method of the same  
A liquid discharge head having a liquid discharge head substrate including an element row in which a plurality of energy generating elements for generating thermal energy for use in discharging...
8434855 Fluid ejector including MEMS composite transducer  
A fluid ejector includes a substrate, a MEMS transducing member, a compliant membrane, walls, and a nozzle. First portions of the substrate define an outer boundary of a cavity. Second portions of...
8430484 Nozzle covering for ejection chips in micro-fluid applications  
A micro-fluid ejection head conveys fluid to firing elements at differing heights in differing layers. The ejection head includes a base substrate. The firing elements are configured on the...
8425012 Liquid ejection recording head including an element generating energy used to eject liquid and method of manufacturing the same  
A method includes preparing a liquid ejection recording head that includes a substrate including an element generating energy used to eject liquid, a first supporting portion supporting the...
8419169 Inkjet printhead and method employing central ink feed channel  
An inkjet printhead (100) and a method (200) of supplying viscous ink employ a central ink feed channel (130). The inkjet printhead (100) includes a bridge beam (110) that supports an ejector...
8408681 Liquid discharge head having an increased rigidity  
A liquid discharge head includes a plurality of nozzle arrays. A concave portion is formed on a back side of a head substrate, and all supply ports are formed in the bottom of the concave portion....
8398208 Ceramic printed circuit board (PCB) and inkjet printhead assembly using the same  
A ceramic printed circuit board (PCB) and an inkjet printhead assembly using the ceramic PCB. A ceramic PCB in which a plurality of layers are stacked includes a plurality of terminals to receive...
8388106 Ink discharge head and manufacturing method thereof  
An ink discharge head includes a coating resin layer having a plurality of discharge ports for discharging ink, and ink flow passages which communicate with the plurality of discharge ports,...
8388113 Inkjet printhead and method of manufacturing the same  
Provided are an inkjet printhead and a method of manufacturing the same. The inkjet printhead includes: a substrate, on which a plurality of heaters for heating ink to generated ink bubbles are...
8390423 Nanoflat resistor  
A nanoflat resistor includes a first aluminum electrode (360), a second aluminum electrode (370); andnanoporous alumina (365) separating the first and second aluminum electrodes (360, 370). A...
8382246 Printhead having mirrored rows of print nozzles  
A printhead having at least first and second rows of print nozzle cells. Each each nozzle cell has an ink chamber, control circuitry and drive circuitry. Each nozzle cell in the first row has a...
8382231 Inkjet print head and inkjet printing apparatus  
A print head having high printing reliability, in which temperature unevenness is suppressed even when printing is performed using a print head having an increased length and density of an...
8376519 Printhead having assembly of printhead modules  
A printhead is provided having an assembly of printhead modules. Each printhead module has a support defining fluid chambers, a fluid distributor on the support, and an integrated circuit on the...
8366245 Fin-shaped heater stack and method for formation  
A fin-shaped heater stack includes first strata configured to support and form fluid heater elements responsive to repetitive electrical activation and deactivation to produce repetitive cycles of...
8366241 Printhead having capped fluid passages  
A printhead is provided having a casing mounted on a molding to define a fluid reservoir and a first passage in fluid communication between the fluid reservoir, a wafer at least defining at least...
8353575 Nozzle sheet and method for manufacturing the same  
Provided is a nozzle sheet manufacturing method by which highly fine manufacture and low cost are achieved. The method for manufacturing a nozzle sheet to be used for an inkjet head for an inkjet...
8342657 Inkjet nozzle assembly having heater element bonded to chamber wall via dielectric layer  
An inkjet nozzle assembly has a chamber with a nozzle opening for ejecting a liquid, a heater element disposed in the chamber, and a dielectric layer sandwiched between the heater element and a...
8333459 Printing device  
A printing device (10) including a substrate (22) having an aperture (20) extending therethrough, wherein the aperture includes a side wall and defines a liquid ink flow path, an ink firing...