Juanita D. Stephens

US Patent 7086718 Thermal ink jet printhead with high nozzle areal density

US Patent 7086719 Inkjet printhead heater with high surface area

US Patent 7090334 Ink jet record head

US Patent 7093921 Micro-electromechanical actuating mechanism with built-in test circuit

US Patent 7097282 Printhead assembly incorporating one or more printhead modules

US Patent 7097283 Inkjet printhead having non-planar ink ejector

US Patent 7097284 Double-action micro-electromechanical device

US Patent 7097287 Ink jet device, ink jet ink, and method of manufacturing electronic component using the device and the ink

US Patent 7101023 Inkjet printhead having multiple-sectioned nozzle actuators

US Patent 7101025 Printhead integrated circuit having heater elements with high surface area

US Patent 7104633 Monolithic ink-jet printhead and method of manufacturing the same

US Patent 7104635 Load and feed apparatus for solid ink

US Patent 7108350 Liquid-discharging apparatus

US Patent 7108358 Pressure buffer and ink-jet recording apparatus

US Patent 7108363 Keying elements for solid ink loader

US Patent 7111915 Methods and apparatus for image transfer

US Patent 7111925 Inkjet printhead integrated circuit

US Patent 7118189 Autopurge printing system

US Patent 7118195 Inkjet printhead having thermally durable MEM inkjet array

US Patent 7118196 Ink jet recording method

US Patent 7121649 Ink-jet head and reservoir unit included in ink-jet head

US Patent 7125105 Semiconductor device for liquid ejection head, liquid ejection head, and liquid ejection apparatus

US Patent 7128393 Highly parallel fabrication of microarrays by ink jet printheads

US Patent 7128402 Inkjet printhead with low volume ink displacement

US Patent 7128404 Droplet discharge head and inkjet recording apparatus

US Patent 7137683 Correction table generation method and method of controlling correction table generation apparatus

US Patent 7137686 Inkjet printhead having inkjet nozzle arrangements incorporating lever mechanisms

US Patent 7137687 Liquid discharge head, liquid discharge apparatus, and method for forming liquid discharge head

US Patent 7140716 Mechanical lock mechanism for locking wiper/printhead

US Patent 7140721 Heat generating resistive element, substrate for liquid discharge head having the heat generating resistive element, liquid discharge head, and manufacturing method therefor

US Patent 7144099 Liquid drop emitter with split thermo-mechanical actuator

US Patent 7147304 Pagewidth inkjet printhead assembly with longitudinally extending sets of nozzles

US Patent 7147305 Printer formed from integrated circuit printhead

US Patent 7147306 Printhead nozzle with reduced ink inertia and viscous drag

US Patent 7150512 Cleaning system for a continuous ink jet printer

US Patent 7152957 Recording device board having a plurality of bumps for connecting an electrode pad and an electrode lead, liquid ejection head, and manufacturing method for the same

US Patent 7152958 Thermal ink jet with chemical vapor deposited nozzle plate

US Patent 7152959 Mounting and supporting arrangement for printhead assembly

US Patent 7156487 Microfluidic pump driven by thermoacoustic effect

US Patent 7156492 Modular printhead assembly with a carrier of a metal alloy

US Patent 7156493 Droplet ejecting apparatus that contains an actuator plate having a communication hole

US Patent 7156496 Use of fluidic seal in a method of ejecting ink from an inkjet nozzle

US Patent 7156499 Heat generating resistive element, substrate for liquid discharge head having the heat generating resistive element, liquid discharge head, and manufacturing method therefor

US Patent 7159966 Ink-jet head capable of suppressing a defective bonding

US Patent 7159968 Printhead integrated circuit comprising thermal bend actuator

US Patent 7159973 Latch release mechanism for printing apparatus components

US Patent 7163278 Ink-jet printhead with improved ink ejection linearity and operating frequency

US Patent 7165831 Micro-fluid ejection devices

US Patent 7172262 Capping unit, capping method, and droplet dispense unit

US Patent 7172267 Ink jet recording method and ink jet recording apparatus

US Patent 7172268 Ink jet head, method for driving the same, and ink jet recording apparatus

US Patent 7175257 Ink-jet printhead with droplet ejecting portion provided in a hydrophobic layer

US Patent 7175258 Doubly-anchored thermal actuator having varying flexural rigidity

US Patent 7178903 Ink jet nozzle to eject ink

US Patent 7178904 Ultra-low energy micro-fluid ejection device

US Patent 7178905 Monolithic ink-jet printhead

US Patent 7182440 Liquid jet apparatus

US Patent 7185969 Droplet dispensation from a reservoir with reduction in uncontrolled electrostatic charge

US Patent 7188931 Doubly-anchored thermal actuator having varying flexural rigidity

US Patent 7188932 Electrostatic actuator, droplet ejection head and droplet ejection device

US Patent 7188934 Electrostatic gating

US Patent 7192122 Liquid ejecting head and a process for producing the head

US Patent 7192123 Ink jet recording head and manufacturing method thereof

US Patent 7195338 Inkjet printhead heater with high surface area

US Patent 7195340 Ink-jet recording method and ink-jet ink

US Patent 7195341 Power and ground buss layout for reduced substrate size

US Patent 7195345 Ink-jet printing apparatus and ink cartridge

US Patent 7201471 MEMS device with movement amplifying actuator

US Patent 7201472 Inkjet nozzle having fluidic seal between ink ejection member and stationary member

US Patent 7204574 Polyimide thickfilm flow feature photoresist and method of applying same

US Patent 7204583 Control electrode for rapid initiation and termination of particle flow

US Patent 7204584 Conductive bi-layer intermediate transfer belt for zero image blooming in field assisted ink jet printing

US Patent 7204585 Method and system for improving printer performance

US Patent 7207654 Ink jet with narrow chamber

US Patent 7207658 Printhead integrated circuit with electromechanical actuators incorporating heatsinks

US Patent 7207659 Nozzle arrangement for an inkjet printhead with ink passivation structure

US Patent 7207660 Electrostatic ink jet head fixing a position of an edge portion of a meniscus of ink

US Patent 7210764 Printhead with drive transistors and corresponding ink ejection actuators

US Patent 7213905 Liquid ejecting device

US Patent 7213907 Inkjet nozzle incorporating a cleaning structure

US Patent 7216957 Micro-electromechanical ink ejection mechanism that incorporates lever actuation

US Patent 7216960 Method of driving a printhead using a constant current and operating MOS transistor in saturation region

US Patent 7216961 Ink jet head having heat accumulation layer and protection film method of driving thereof and ink jet recording apparatus provided therewith

US Patent 7219983 Fine forging method, manufacturing method of liquid ejection head, and liquid ejection head

US Patent 7222943 Thin nozzle plate for low printhead deformation

US Patent 7226146 Fluid ejection devices and methods for forming such devices

US Patent 7226147 Printhead integrated circuit with coupled arrays of transistor drive circuits and nozzles

US Patent 7229153 Printhead chip with electro-thermal actuators incorporating heatsinks

US Patent 7229154 Ink ejection nozzle with a thermal bend actuator

US Patent 7229158 Protective layer of ink-jet print head and method of making ink-jet print head having the same

US Patent 7234795 Inkjet nozzle with CMOS compatible actuator voltage

US Patent 7237877 Droplet discharging device

US Patent 7237883 Ink cartridge having positioning structure and recording apparatus for receiving the ink cartridge

US Patent 7240992 Ink jet printhead incorporating a plurality of nozzle arrangement having backflow prevention mechanisms

US Patent 7240993 Printhead assembly for a pagewidth inkjet printer incorporating a series of printhead modules

US Patent 7244009 Ink jet type recording apparatus, ink type information setting method in the apparatus and ink cartridge used in the apparatus

US Patent 7244014 Micro-fluid ejection devices and method therefor

US Patent 7244015 Inkjet printhead heater chip with asymmetric ink vias

US Patent 7244018 Ink cartridge having retaining structure and memory

US Patent 7246884 Inkjet printhead having enclosed inkjet actuators

US Patent 7246885 Self cooling inkjet printhead for preventing inadvertent boiling

US Patent 7246887 Dual input bi-directional printhead driver integrated circuit

US Patent 7249824 Liquid discharge head having inductive channel and recording device incorporating liquid discharge head

US Patent 7249833 Ink storage device

US Patent 7252361 Ink jet recording apparatus having an ink absorbing member and a wiping member

US Patent 7252367 Inkjet printhead having paddled inkjet nozzles

US Patent 7252368 Fluid injector

US Patent 7255425 Ink-channel wafer integrated with CMOS wafer for inkjet printhead and fabrication method thereof

US Patent 7255430 Ink refill unit with cartridge constriction actuators

US Patent 7258424 Printer with a MEMS printhead

US Patent 7258425 Printhead incorporating leveraged micro-electromechanical actuation

US Patent 7261393 Liquid jetting head, liquid jetting apparatus, and method of manufacturing the liquid jetting head

US Patent 7261394 Inkjet nozzle with reduced fluid inertia and viscous drag

US Patent 7264336 Stacked heater elements in a thermal ink jet printhead

US Patent 7267422 Purging fixing-liquid ejection devices

US Patent 7267429 Ink-jet printhead substrate, driving control method, ink-jet printhead and ink-jet printing apparatus

US Patent 7267430 Heater chip for inkjet printhead with electrostatic discharge protection

US Patent 7267432 Ink-jet head

US Patent 7273267 Bubble-eliminating liquid filling method, droplet discharging apparatus, and inkjet recording apparatus

US Patent 7275814 Monolithic printhead with multiple ink feeder channels and relative manufacturing process

US Patent 7278711 Nozzle arrangement incorporating a lever based ink displacement mechanism

US Patent 7278712 Nozzle arrangement with an ink ejecting displaceable roof structure

US Patent 7278717 Thermal ink jet printhead with suspended beam heater

US Patent 7281782 Thermal ink jet with thin nozzle plate

US Patent 7284816 Printer with motor driven maintenance station

US Patent 7284829 Inkjet printhead and process for producing the same

US Patent 7284836 Nozzle arrangement including an actuator

US Patent 7284840 Inkjet head with communicating flow paths

US Patent 7287827 Printhead incorporating a two dimensional array of ink ejection ports

US Patent 7287831 Printhead integrated circuit adapted for adhesive bonding

US Patent 7287838 Liquid discharge head having protective film for heating element and substrate therefor

US Patent 7290853 Inkjet printhead with a two dimensional array of ink ejection nozzle arrangements

US Patent 7290863 Ink jet printhead chip with misdirected drop collection

US Patent 7290864 Heater chips with a reduced number of bondpads

US Patent 7290866 Liquid discharging apparatus

US Patent 7293855 Inkjet nozzle with ink supply channel parallel to drop trajectory

US Patent 7293857 Inkjet printhead and method of manufacturing the same

US Patent 7296871 Device and structure arrangements for integrated circuits and methods for analyzing the same

US Patent 7296879 Liquid ejection head and method of producing the same

US Patent 7296880 Ink-jet printer head having laminated protective layer and method of fabricating the same

US Patent 7300140 Ink refill unit for maintaining negative pressure in negatively pressurized ink storage compartment

US Patent 7303263 Thermal ink jet printhead with high nozzle areal density

US Patent 7303268 Ink refill unit for refilling a high speed print engine

US Patent 7306326 Thermal ink jet printhead with low heater mass

US Patent 7306327 Substrate for ink jet head, ink jet head using the same, and manufacturing method thereof

US Patent 7311383 Liquid discharge recording apparatus and liquid discharge recording method

US Patent 7322679 Inkjet nozzle arrangement with thermal bend actuator capable of differential thermal expansion

US Patent 7325903 Quill-jet printer

US Patent 7325905 Printhead module for an inkjet printer

US Patent 7328965 Liquid jet head unit and liquid jet device

US Patent 7328971 Micro-electromechanical fluid ejection device with an array of nozzle assemblies incorporating fluidic seals

US Patent 7328975 Injet printhead with thermal bend arm exposed to ink flow

US Patent 7328976 Hydrophobically coated printhead

US Patent 7328978 Printhead heaters with short pulse time

US Patent 7328979 System for manipulation of a body of fluid

US Patent 7331650 Printhead having a removable nozzle plate

US Patent 7331651 Inkjet printhead having isolated nozzles

US Patent 7331655 Fluid coupler and a device arranged with the same

US Patent 7333404 Actuator for mobile optical recording/reproducing apparatus

US Patent 7334862 Image forming apparatus for performing restoration process

US Patent 7334863 Nozzle cap, head cap unit, and liquid ejection head

US Patent 7334870 Method of printing which minimizes cross-contamination between nozzles

US Patent 7334874 Inkjet nozzle chamber with electrostatically attracted plates

US Patent 7334875 Method of fabricating a printhead having isolated nozzles

US Patent 7334876 Printhead heaters with small surface area

US Patent 7334879 Ink-jet head

US Patent 7341322 Liquid jet head, method and apparatus and receiving medium, configured for small ejected liquid droplets

US Patent 7344226 Method of hydrophobically coating a printhead

US Patent 7347518 Ink jet recording head configured for ejecting small ink droplets to form high quality images

US Patent 7347532 Print head nozzle formation

US Patent 7347533 Low cost piezo printhead based on microfluidics in printed circuit board and screen-printed piezoelectrics

US Patent 7347534 Inkjet printhead with apertured sealing film

US Patent 7347538 Method for manufacturing discharge head, and discharge head

US Patent 7350896 Electromagnetically controlled capper assembly for capping a pagewidth printhead cartridge

US Patent 7350898 Nozzle tape used with inkjet cartridge

US Patent 7350906 Ink supply arrangement incorporating sets of passages for carrying respective types of ink

US Patent 7354131 Inkjet printhead nozzle plate

US Patent 7354138 Liquid droplet discharge head, manufacturing method thereof, and image forming apparatus

US Patent 7357487 Image forming apparatus using liquid with electrorheological properties and method of controlling same

US Patent 7357489 Thermal ink jet printhead with heaters formed from low atomic number elements

US Patent 7357499 Inkjet print head with multi-functional structure

US Patent 7360852 Image forming system and image forming apparatus

US Patent 7360860 System for mounting a capper assembly to a pagewidth printhead

US Patent 7360861 Pagewidth printhead cartridge having an integral capper unit associated therewith

US Patent 7360870 Nozzle plate for high-resolution inkjet print head

US Patent 7360871 Inkjet chamber with ejection actuator between inlet and nozzle

US Patent 7364257 Capper assembly for a pagewidth printhead cartridge

US Patent 7364267 Liquid ejection head

US Patent 7364268 Nozzle members, compositions and methods for micro-fluid ejection heads

US Patent 7364271 Nozzle arrangement with inlet covering cantilevered actuator

US Patent 7367654 Liquid ejecting apparatus and liquid ejecting method

US Patent 7367655 Integrated printhead with encoding circuit

US Patent 7367657 Inkjet printhead with transistor driver

US Patent 7370940 Liquid 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

US Patent 7370942 Ink supply arrangement incorporating baffles in an ink distribution molding

US Patent 7374271 Cap and droplet discharge apparatus

US Patent 7374274 Method of operating a microelectromechanical inkjet ejector to achieve a predetermined mechanical deflection

US Patent 7374275 Ink jet head circuit board with heaters and electrodes constructed to reduce corrosion, method of manufacturing the same and ink jet head using the same

US Patent 7377620 Hydrophobic nozzle exit with improved micro fluid ejection dynamics

US Patent 7377624 Ink jet head having channel damper and method of fabricating the same

US Patent 7377625 Method for producing ink-jet recording head having filter, ink-jet recording head, substrate for recording head, and ink-jet cartridge

US Patent 7377629 Liquid discharge head with filter structure

US Patent 7380902 Printhead maintenance station

US Patent 7380904 System and method for assuring proper pen loading

US Patent 7380908 Inkjet nozzle arrangement with buckle-resistant actuator

US Patent 7384123 Inkjet recording apparatus and method for estimating the amount of waste ink in the inkjet recording apparatus

US Patent 7384130 Liquid ejection head

US Patent 7387363 Inkjet nozzle arrangement with ink flow control

US Patent 7387369 Method for providing low volume drop displacement in an inkjet printhead

US Patent 7390074 Methods of and apparatuses for wiping a line head in an ink jet recorder

US Patent 7390078 Reduction of heat loss in micro-fluid ejection devices

US Patent 7393079 Ink jet printhead garage configured to perform maintenance functions

US Patent 7393084 Substrate for ink jet head with TaCr alloy protective layer, ink jet head utilizing the same and producing method therefor

US Patent 7399050 Drop emitting apparatus

US Patent 7399060 Ink jet recording head having nozzle portion with differing sectional areas

US Patent 7399064 Ink jetting assembly

US Patent 7399065 Inkjet printer having ink ejection printhead tiles

US Patent 7399069 Fluid-ejection device connector

US Patent 7401902 Inkjet nozzle arrangement incorporating a thermal bend actuator with an ink ejection paddle

US Patent 7401903 Inkjet unit cell with suspended heater element

US Patent 7401911 Apparatus and method of inkjet printing on untreated hydrophobic media

US Patent 7404617 Printer assembly with a capping arrangement

US Patent 7407268 Cartridge alignment mechanism and method thereof

US Patent 7407272 Ink jet head substrate and ink jet head having metal carbon nitride resistor

US Patent 7410243 Inkjet nozzle with resiliently biased ejection actuator

US Patent 7410246 Heater chip configuration for an inkjet printhead and printer

US Patent 7413289 Low energy, long life micro-fluid ejection device

US Patent 7413299 Pressurizing a heatable printhead while it cools

US Patent 7416278 Printheads and systems using printheads

US Patent 7416283 Printhead assembly suitable for redirecting ejected ink droplets

US Patent 7419246 Flexible circuits, flexible circuit assemblies and assemblies for use with fluid ejection apparatuses

US Patent 7419251 Overmolded tube header

US Patent 7419252 Ink jet head, piezo-electric actuator, and method of manufacturing them

US Patent 7419253 Channeling fluid flow

US Patent 7422299 Compensation for malfunctioning jets

US Patent 7427115 Fluid ejector including a drop size symbol, a method of disposing a drop size symbol in a fluid ejector, and an image forming device including a marking fluid ejector with a drop size symbol

US Patent 7427124 Ejection head, image forming apparatus, and ejection control method

US Patent 7429097 Thermal ink jet printhead with symmetric bubble formation

US Patent RE40529 Ink jet recording apparatus and method using ink jet head having u-shaped wiring

US Patent 7431428 Image forming apparatus including line head

US Patent 7431430 Liquid ejecting head having selectively controlled heat-energy evolving element regions

US Patent 7434903 Droplet ejection head driving method, droplet ejection head and droplet ejection device

US Patent 7434913 Inkjet head, method for producing inkjet head, inkjet recorder and inkjet coater

US Patent 7434914 Inkjet recording head

US Patent 7434915 Inkjet printhead chip with a side-by-side nozzle arrangement layout

US Patent 7434917 Ink jet recording head having temperature control heaters and nozzle arrays of differing discharge amounts

US Patent 7438381 Method of removing flooded ink from a printhead

US Patent 7438386 Nozzle guard suitable for redirecting ejected ink droplets

US Patent 7438390 Printhead module assembly with A flexible PCB

US Patent 7438396 Inkjet printing method and apparatus

US Patent 7441863 Method of sealing nozzles on a printhead

US Patent 7441870 Protection of nozzle structures in a liquid-ejection integrated circuit device

US Patent 7441874 Insulated heat unit for ink jet printer, an ink jet printer including an insulated head unit and signal transmission board used for the ink jet printer

US Patent 7441876 Inkjet printhead with suspended heater elements

US Patent 7441877 Substrate having a plurality of common power supply wires and a plurality of common ground wires for inkjet recording head and inkjet recording head using the same

US Patent 7441878 Ink jet recording head including temperature adjustment heater

US Patent 7441879 Unit cell of a printhead for an inkjet printer

US Patent 7445304 Line head inkjet printer

US Patent 7445308 Inkjet image forming apparatus comprising a nozzle cleaning unit and method of using the same

US Patent 7445315 Thin film and thick film heater and control architecture for a liquid drop ejector

US Patent 7448725 Inkjet printhead assembly that incorporates an ink jet capper

US Patent 7452065 Ink bubble removal from ink jet printer

US Patent RE40581 Printer including an ink cartridge

US Patent 7455393 Mist spraying apparatus and method, and image forming apparatus

US Patent 7458660 Recording apparatus, recording method, storage medium having a program stored thereon, and computer system that perform ejection operations using nozzles with a predetermined pitch

US Patent 7458661 Method and apparatus for promoting the complete transfer of liquid drops from a nozzle

US Patent 7458664 Liquid ejection apparatus

US Patent 7460143 Thermal printhead with a resistor layer and method for manufacturing same

US Patent 7461921 Method of redirecting ejected ink droplets

US Patent 7461923 Inkjet printhead having inkjet nozzle arrangements incorporating dynamic and static nozzle parts

US Patent 7465010 Nozzle arrangement with a thermal actuator incorporating heat sinks

US Patent 7465014 Printhead capping device with an elastomeric seal

US Patent 7465019 Inkjet printhead incorporating staggered rows of nozzle arrangements

US Patent 7465023 Micro-electromechanical ink ejection mechanism with electro-magnetic actuation

US Patent 7465024 Inkjet nozzle assembly incorporating a fluidic seal

US Patent 7465025 Nozzle arrangement with nozzle having dynamic and static ink ejection structures

US Patent 7465026 Nozzle arrangement with thermally operated ink ejection piston

US Patent 7465027 Nozzle arrangement for a printhead integrated circuit incorporating a lever mechanism

US Patent 7465028 Nozzle assembly having a thermal actuator with active and passive beams

US Patent 7465030 Nozzle arrangement with a magnetic field generator

US Patent 7465031 Liquid-ejection apparatus

US Patent 7467851 Nozzle arrangement with a movable roof structure

US Patent 7467856 Inkjet printhead with common plane of symmetry for heater element and nozzle

US Patent 7467861 Ink refill unit with incremental ink ejection for a print cartridge

US Patent 7469995 Printhead integrated circuit having suspended heater elements

US Patent 7469996 Inkjet printhead with ink inlet offset from nozzle axis

US Patent 7469997 Printhead unit cell incorporating suspended looped heater element

US Patent 7470000 Ink jet head substrate, ink jet head, and method of manufacturing an ink jet head substrate

US Patent 7470001 Thermal inkjet printhead apparatus to regulate pressure exerted by bubbles in an ink chamber and method thereof

US Patent 7470004 Liquid ejection head and liquid ejection device

US Patent 7470007 Method of refilling a high speed print engine

US Patent 7472985 Liquid ejecting apparatus, recording apparatus, absorbing member and ink collecting unit

US Patent 7481511 Droplet dispensation from a reservoir with reduction in uncontrolled electrostatic charge

US Patent 7481517 Inkjet printer

US Patent 7484829 Liquid droplet jetting apparatus having liquid-repellent jetting surface, nozzle plate having liquid-repellent jetting surface, and method for producing the nozzle plate

US Patent 7484830 Ink-jet head, ink-jet image forming apparatus including the ink-jet head, and method for compensating for defective nozzle

US Patent 7484832 Inkjet printhead having reverse ink flow prevention

US Patent 7488051 Monolithic inkjet printhead with high nozzle count

US Patent 7490924 Drop generator for ultra-small droplets

US Patent 7490927 Refill unit for simultaneously engaging with, and opening inlet valve to, an ink cartridge

US Patent 7494207 Fluid injection device preventing activation of a bipolar junction transistor (BJT) therein

US Patent 7497554 Ink jet print head

US Patent 7497555 Inkjet nozzle assembly with pre-shaped actuator

US Patent 7497556 Mist spraying apparatus and image forming apparatus

US Patent 7500732 Maintenance and docking station for a hand-held printer

US Patent 7500735 Liquid droplet ejecting apparatus and liquid droplet ejecting method

US Patent 7506942 Printing apparatus

US Patent 7506962 Liquid discharge method, liquid discharge head and liquid discharge apparatus

US Patent 7506963 Inkjet printhead with planar heater parallel to nozzle

US Patent 7506964 Inkjet nozzle arrangement having ink passivation

US Patent 7506965 Inkjet printhead integrated circuit with work transmitting structures

US Patent 7506966 Printer incorporating a print roll unit supplying ink to a baffled ink supply unit

US Patent 7506967 Ink jet head having an electrostatic actuator, ink cartridge, and inkjet printer

US Patent 7510268 Printhead assembly with integrated circuit optimised for adhesive bonding

US Patent 7510271 Liquid ejection head

US Patent 7513586 Waveform signal driven liquid ejection apparatus and image forming apparatus

US Patent 7513605 Inkjet printhead with heat generating resistor

US Patent 7513606 Fluid coupler and a device arranged with the same

US Patent 7513609 Ink-jet printer head including measurement electrode for measuring capacitance with common electrode

US Patent 7513610 Cover assembly for a print engine with push rod for actuating a refill unit

US Patent 7517051 Method of fabricating ink jet head and ink jet head fabricated thereby

US Patent 7517056 Fluid ejection device

US Patent 7517058 Ink jet recording head having structural members in ink supply port

US Patent 7520585 Liquid ejection head and liquid ejection apparatus having multiple pressure sensor member layers

US Patent 7524006 Fluid ejector including a drop size symbol, a method of disposing a drop size symbol in a fluid ejector, and an image forming device including a marking fluid ejector with a drop size symbol

US Patent 7524027 Printhead assembly with a series of printhead modules mounted in a carrier of a metal alloy

US Patent 7524028 Printhead assembly having laminated printing fluid distributors

US Patent 7524029 Inkjet printhead with pairs of ink spread restriction pits

US Patent 7524030 Nozzle arrangement with heater element terminating in oppositely disposed electrical contacts

US Patent 7524031 Inkjet printhead nozzle incorporating movable roof structures

US Patent 7524043 Refill unit for engaging with, and closing the outlet valve from an ink storage compartment

US Patent 7527347 Ink jet print head and ink jet printing apparatus having a plurality of slits formed in a heater substrate mounting surface

US Patent 7527356 Device package structure, device packaging method, liquid drop ejection method, connector, and semiconductor device

US Patent 7527357 Inkjet nozzle array with individual feed channel for each nozzle

US Patent 7530670 Electrostatic actuator, droplet discharging head, droplet discharging apparatus, electrostatic device, and method of manufacturing these

US Patent 7530671 Printing apparatus recovering mist-like ink droplets

US Patent 7533949 Image forming system and image forming apparatus

US Patent 7533950 Liquid jet recording apparatus

US Patent 7533963 High nozzle density printhead

US Patent 7533964 Inkjet printhead with suspended heater mounted to opposing sides of the chamber

US Patent 7533965 Apparatus and method for electrostatically charging fluid drops

US Patent 7533968 Nozzle arrangement with sidewall incorporating heater element

US Patent 7533973 Inkjet printer system with a pair of motor assemblies

US Patent 7537314 Inkjet printhead having nozzle arrangements with ink spreading prevention rims

US Patent 7537315 Cradle unit for a print engine having a maintenance drive assembly

US Patent 7537316 Inkjet printhead having low mass ejection heater

US Patent 7543914 Thermal printhead with self-preserving heater element

US Patent 7543915 Fluid ejection device

US Patent 7543916 Printer with low voltage vapor bubble generating heaters

US Patent 7547081 Methods and apparatus for image transfer

US Patent 7547094 Liquid discharge recording head and ink jet recording apparatus

US Patent 7547095 Inkjet printhead having a array of nozzles with external actuators

US Patent 7547098 Printing fluid supply device

US Patent 7549729 Inkjet printhead for minimizing required ink drop momentum

US Patent 7549732 Printhead having nozzle arrangements with sealing structures

US Patent 7549738 Ink refill unit for a negatively pressurized ink reservoir of a printer cartridge

US Patent 7552992 Liquid jet head unit and liquid jet device

US Patent 7553000 Ink-jet printer, head for ink-jet printer and flexible cable usable for the same

US Patent 7556354 Nozzle arrangement with twin heater elements

US Patent 7556356 Inkjet printhead integrated circuit with ink spread prevention

US Patent 7556359 Ink refill unit with a working outlet and other dummy outlets

US Patent 7556361 Ink supply unit having a cover unit for positioning tape automated bonded film

US Patent 7559620 Printhead assembly having replaceable printhead

US Patent 7562962 Printhead for use in camera photo-printing

US Patent 7562966 Ink jet printhead with suspended heater element

US Patent 7566115 Liquid ejecting apparatus and platen unit

US Patent 7568785 Nozzle plate and method of manufacturing the same

US Patent 7568787 Printhead including seal membrane

US Patent 7571979 Thick film layers and methods relating thereto

US Patent 7571987 Ink jet head and image recording apparatus including the ink jet head

US Patent 7571988 Variable-volume nozzle arrangement

US Patent 7571989 Droplet ejection head driving circuit and method, and droplet ejection device

US Patent 7575294 Printhead substrate, printhead using the substrate, head cartridge including the printhead, method of driving the printhead, and printing apparatus using the printhead

US Patent 7575297 Method of unblocking nozzles in a printhead

US Patent 7575302 Circuitry for printer

US Patent 7575305 Liquid ejection head having improved ejection performance

US Patent 7581818 Pagewidth inkjet printhead with ink ejection devices having a series of protrusions to facilitate ink ejection

US Patent 7581820 Inkjet printhead and image forming apparatus including the same

US Patent 7585052 Topography layer

US Patent 7585053 Thermal inkjet printhead

US Patent 7585059 Ink jet head and production method therefor

US Patent 7588318 System and method for assuring proper pen loading

US Patent 7588319 Media supply cartridge of a roll-fed printer

US Patent 7588324 Ink cartridge having enlarged end reservoirs

US Patent 7591539 Inkjet printhead with narrow printing zone

US Patent 7594713 Inkjet printer with unit cells having suspended heater elements

US Patent 7597416 Ink-jet recording apparatus

US Patent 7597422 Ink-jet printer, head for ink-jet printer and flexible cable usable for the same

US Patent 7597423 Printhead chip with high nozzle areal density

US Patent 7597427 Liquid channel structure and liquid-droplet jetting apparatus

US Patent 7600856 Liquid ejector having improved chamber walls

US Patent 7600857 Liquid discharge head

US Patent 7600858 Micro-fluid ejection head structure

US Patent 7611225 Inkjet nozzle assembly having thermal bend actuator with an active beam defining part of an exterior surface of a nozzle chamber roof

US Patent 7611226 Thermal printhead with heater element and nozzle sharing common plane of symmetry

US Patent 7611227 Nozzle arrangement for a printhead integrated circuit

US Patent 7611228 Mist ejection head and image forming apparatus comprising same

US Patent 7611229 Inkjet head

US Patent 7614725 Inkjet printing apparatus

US Patent 7614731 Ink cartridge and recording apparatus

US Patent 7618104 Computer monitor having flat panel display and printhead

US Patent 7618113 Liquid discharge apparatus and liquid discharge method

US Patent 7618120 Inkjet printhead and process for producing the same

US Patent 7618124 Thermal bend actuator comprising porous material

US Patent 7618125 Printhead integrated circuit with vapor bubbles offset from nozzle axis

US Patent 7621611 Liquid delivery device and liquid delivery method

US Patent 7625063 Apparatus and methods for an inkjet head support having an inkjet head capable of independent lateral movement

US Patent 7625069 Liquid discharge head having hollow portions for relaxing stress in the head and manufacturing method of the same

US Patent 7625072 Ink jet recording head and recording apparatus

US Patent 7635176 Connection structure between resin component and metal component and ink-jet head comprising the same

US Patent 7635179 Array printhead with three terminal switching elements

US Patent 7637578 Printing data processing apparatus and method therefor

US Patent 7637593 Printhead with low viscous drag droplet ejection

US Patent 7637596 Print head with liquid channels having movable valves

US Patent 7637597 Droplet discharge device

US Patent 7637598 Printhead with multiple ink feeding channels

US Patent 7641303 Drop emitting apparatus

US Patent 7641313 Apparatus for facilitating ink tank/printhead replacement in an imaging apparatus

US Patent 7645027 Print head with thermomechanical actuator

US Patent 7645029 Inkjet printhead nozzle arrangement having non-coincident electrodes

US Patent 7648220 Sensing of fluid ejected by drop-on-demand nozzles

US Patent 7654640 Printhead with drive circuitry components adjacent the printhead IC

US Patent 7654641 Inkjet nozzle assembly having moving roof portion defined by a thermal bend actuator having a plurality of cantilever beams

US Patent 7654644 Printhead nozzle arrangement having variable volume nozzle chamber

US Patent 7654646 Ink jet head

US Patent 7658472 Printhead system with substrate channel supporting printhead and ink hose

US Patent 7658477 Liquid ejecting head, imaging forming apparatus, device for ejecting a liquid drop, and recording method

US Patent 7658479 Print engine with a refillable printer cartridge with ink refill ports

US Patent 7658482 Printhead assembly with shut off valve for isolating the printhead

US Patent 7665826 Inkjet printing head and method of manufacturing the same

US Patent 7665827 Liquid discharge recording head having an improved oxetane resin covering layer as part of a liquid flow path and liquid discharge apparatus

US Patent 7669948 Fluid ejector including a drop size symbol, a method of disposing a drop size symbol in a fluid ejector, and an image forming device including a marking fluid ejector with a drop size symbol

US Patent 7669952 Printhead integrated circuit assembly with compensation controller

US Patent 7669966 Liquid droplet discharging apparatus and head with liquid droplet guides

US Patent 7669967 Printhead having hydrophobic polymer coated on ink ejection face

US Patent 7669972 Printhead having suspended heater elements

US Patent 7669974 Nozzle assembly with lever arm and thermal bend actuator

US Patent 7669985 Jetstack plate to plate alignment

US Patent 7669993 Ink cartridge and recording apparatus

US Patent 7673968 Printing device locking mechanism for consumable enclosures

US Patent 7677695 Fluid transfer device including a die

US Patent 7677697 Droplet discharging head with a through hole having a protrusion on a surface, droplet discharging device and a functional-film forming device

US Patent 7677699 Air expulsion arrangement for printhead assembly

US Patent 7677700 Liquid discharge head

US Patent 7677701 Micro-fluid ejection head with embedded chip on non-conventional substrate

US Patent 7677703 Thermal inkjet with multiple drop volumes per nozzle

US Patent 7677704 Printhead unit cell having welled heater element

US Patent 7677705 Ink jet head for providing stable ink discharge, method of manufacturing the ink jet head, and ink jet recording device

US Patent 7681983 Image forming apparatus and vibration prevention mechanism of a carriage

US Patent 7681990 Liquid jetting apparatus and method for switchably driving heaters

US Patent 7686423 Liquid discharge head and manufacturing method thereof

US Patent 7686441 Ink cartridge and recording apparatus

US Patent 7690763 Color imaging apparatus configured to reduce bidirectional color difference

US Patent 7690766 Liquid ejection head, liquid ejection device and liquid ejection method

US Patent 7695106 Thin nozzle layer printhead

US Patent 7695109 Printhead having laminated ejection fluid distributors

US Patent 7695110 Liquid ejection apparatus

US Patent 7695113 Ink-jet head

US Patent 7695121 Method of refilling a printing unit

US Patent 7699436 Ink jet printing method and ink jet printing apparatus

US Patent 7699446 Ink refill unit with incremental millilitre ink ejection for print cartridge

US Patent 7699447 Ink refill unit with controlled incremental ink ejection for print cartridge

US Patent 7699448 Ink refill unit with threaded incremental ink ejection for print cartridge

US Patent 7703874 Inkjet head unit including a plurality of head elements attached to one another and a common nozzle plate and ink distribution manifold

US Patent 7703888 Nozzle arrangement for an inkjet printhead with a diffusion barrier

US Patent 7703890 Printhead with backflow resistant nozzle chambers

US Patent 7706909 Three-dimension printing system including semiconductor object incorporation device

US Patent 7708382 Inkjet nozzle arrangement incorporating thermal differential actuation

US Patent 7708392 Refill unit for engaging with ink storage compartment, and fluidically isolating printhead

US Patent 7712870 Ink jet recording head with sealant filling region in substrate

US Patent 7712872 Inkjet nozzle arrangement with a stacked capacitive actuator

US Patent 7722162 Ink jet printing assembly with printhead modules and ink delivery member

US Patent 7722163 Printhead IC with clock recovery circuit

US Patent 7722168 Inkjet printhead incorporating coincident groups of ink apertures

US Patent 7722169 Inkjet printhead with elongate chassis defining ink supply apertures

US Patent 7726780 Inkjet printhead having high areal inkjet nozzle density

US Patent 7726781 Micro-electromechanical nozzles having low weight heater elements

US Patent 7726788 Ink supply needle for a liquid ejecting head and liquid ejecting apparatus

US Patent 7726789 Ink refill unit having printer ink storage actuators

US Patent 7731338 Ink-jet printer head having laminated protective layer and method of fabricating the same

US Patent 7735966 Liquid-ejection integrated circuit device having nozzle shield

US Patent 7735967 Actuator for manipulation of liquid droplets

US Patent 7735969 Inkjet printer utilizing low energy titanium nitride heater elements

US Patent 7744192 Nozzle plate of a spray apparatus

US Patent 7744196 Nozzle arrangement having annulus shaped heater elements

US Patent 7744204 Liquid discharge apparatus and liquid discharge device group capable of changing fluid resistance

US Patent 7748817 Liquid ejection apparatus and method for cleaning liquid ejection apparatus

US Patent 7753484 Printhead provided with individual nozzle enclosures

US Patent 7753491 Printhead nozzle arrangement incorporating a corrugated electrode

US Patent 7753492 Micro-electromechanical fluid ejection mechanism having a shape memory alloy actuator

US Patent 7753494 Printhead having low mass bubble forming heaters

US Patent 7753501 Liquid supply system and ink jet recording apparatus

US Patent 7753508 Ink supply cartridge for a printhead assembly

US Patent 7758156 Image forming method, image forming apparatus, and ink jet recording apparatus

US Patent 7758163 Base and substrate for printhead assembly

US Patent 7758166 Inkjet nozzle with paddle layer sandwiched between first and second wafers

US Patent 7758167 Media supply cartridge for roll-fed printer

US Patent 7762648 Liquid ejection apparatus and image forming apparatus comprising liquid ejection apparatus

US Patent 7762649 Printing head, ink jet printing apparatus, and ink jet printing method ejecting main and sub-droplets

US Patent 7762652 Print engine with ink storage modules incorporating collapsible bags

US Patent 7766454 Liquid discharge head, liquid discharger, and image forming apparatus, including silicone resin layer formed on discharge side of head

US Patent 7766456 Electrostatic actuator, liquid droplet discharging head, methods for manufacturing them, and liquid droplet discharging apparatus

US Patent 7771015 Printhead nozzle arrangement having a looped heater element

US Patent 7771021 Inkjet head assembly and printing apparatus with ultraviolet emitting unit and method using the same

US Patent 7771025 Inkjet printhead having plural nozzle arrangements grouped in pods

US Patent 7771026 Ink jet recording head and liquid jetting method

US Patent 7775624 Ejection restoration apparatus for liquid ejection head and image forming apparatus comprising ejection restoration apparatus

US Patent 7775630 Printhead integrated circuit with high droplet ejector density

US Patent 7775633 Pagewidth printhead assembly having a plurality of printhead modules each with a stack of ink distribution layers

US Patent 7775636 Nozzle arrangement having partially embedded heated elements

US Patent 7775637 Nozzle arrangement with ejection apertures having externally projecting peripheral rim

US Patent 7775642 Docking port in a cover assembly

US Patent 7780267 Recording head for ink-jet recording apparatus

US Patent 7780268 Liquid transport apparatus

US Patent 7780270 Heating structure with a passivation layer and inkjet printhead including the heating structure

US Patent 7784908 Flexible film wiring board and liquid discharge head

US Patent 7784911 Apparatus and method for printing biomolecular droplet on substrate

US Patent 7784916 Micro-fluid ejection heads with multiple glass layers

US Patent 7784917 Process for making a micro-fluid ejection head structure

US Patent 7784918 Low energy, long life micro-fluid ejection device

US Patent 7784924 Printhead ink delivery system with two pairs of locating formations

US Patent 7789494 Inkjet head including plurality of restrictors to restrain crosstalk

US Patent 7794032 Liquid ejecting apparatus, liquid container, and method for determining liquid level of liquid container

US Patent 7794041 Liquid ejecting apparatus and maintenance method thereof

US Patent 7794045 Ink-jet recording apparatus

US Patent 7794054 Droplet printing apparatus using capillary electric charge concentration

US Patent 7794061 Inkjet printhead with non-uniform nozzle chamber inlets

US Patent 7794062 Liquid droplet ejecting device

US Patent 7798603 Printhead with high nozzle pitch tranverse to print direction

US Patent 7798608 Printhead assembly incorporating a pair of aligned groups of ink holes

US Patent 7802877 Ink cartridge and recording apparatus

US Patent 7806504 Ink-jet head protection assembly and protection method of an ink-jet head

US Patent 7806509 Ink-jet image forming apparatus and waste-ink processing method

US Patent 7810898 Liquid ejection apparatus and maintenance method for liquid ejection head

US Patent 7815297 Ink jet recording head and ink jet recording apparatus having a plurality of ink flow paths

US Patent 7819490 Printer unit with print engine that expands compressed image data

US Patent 7821526 Image forming apparatus

US Patent 7824003 Fluid-ejection device service station

US Patent 7824004 Liquid discharging device and image forming apparatus

US Patent 7824014 Head substrate, printhead, head cartridge, and printing apparatus

US Patent 7824015 Ink jet writing head

US Patent 7824016 Pagewidth printhead arrangement with a controller for facilitating weighted ink drop ejection

US Patent 7828405 Correction table generation method and method of controlling correction table generation apparatus

US Patent 7828407 Printhead spittoon

US Patent 7832829 Ink jet recording apparatus having a protruding portion that comes into contact with a droplet receiving portion to close a space around nozzles for discharging ink

US Patent 7832841 Printing apparatus and printing method for discharging fine ink droplets using an ion emitter

US Patent 7832848 Ink cartridge mounting device and image forming device

US Patent 7837321 Recording method, recording apparatus and computer-readable storage medium

US Patent 7841686 Cartridge, recording apparatus, and method for determining amount of recording liquid remainder

US Patent 7841695 Printhead IC with more than 10000 nozzles in the exposure area of a photo-imaging device

US Patent 7841697 Printhead with redundant nozzle chamber inlets for minimizing effects of blockages

US Patent 7845750 Ink jet type recording apparatus, ink type information setting method in the apparatus and ink cartridge used in the apparatus

US Patent 7845763 Printhead assembly with minimal leakage

US Patent 7845764 Inkjet printhead having nozzle arrangements with actuator pivot anchors

US Patent 7845766 Inkjet recording head

US Patent 7850282 Nozzle arrangement for an inkjet printhead having dynamic and static structures to facilitate ink ejection

US Patent 7850284 Method for dry etching fluid feed slots in a silicon substrate

US Patent 7857436 Ink refill unit with incremental ink ejection mechanism

US Patent 7862144 Printhead assembly with a print media guide and a wicking element

US Patent 7862150 Inkhead printhead configured to overcome impaired print quality due to nozzle blockage, printing method using the same, and method of manufacturing the inkjet printhead

US Patent 7862151 Printhead with droplet redirecting nozzle guard

US Patent 7866797 Inkjet printhead integrated circuit

US Patent 7871151 Liquid discharge head

US Patent 7874640 Inkjet printhead employing nozzle paddle ink ejecting actuator

US Patent 7874641 Modular printhead assembly

US Patent 7874642 Recording apparatus having flexible wiring member portions of which overlap each other

US Patent 7874644 Inkjet printhead with shared ink spread restriction walls

US Patent 7878630 Printhead assembly for inkjet printer

US Patent 7883172 Inkjet recording apparatus with plural heads and suction unit

US Patent 7883176 Droplet discharge device

US Patent 7883185 Thermal ink-jet ink and ink cartridge using the same

US Patent 7887156 Integral printhead assembly

US Patent 7887161 Inkjet printhead having an array of displacable nozzles

US Patent 7887169 Ink refill unit with incremental ink ejection accuated by print cartridge cradle

US Patent 7891773 Low voltage nozzle assembly for an inkjet printer

US Patent 7891774 Printhead having low pressure rise nozzles

US Patent 7891775 Inkjet drop ejection apparatus with radially extending thermal actuators

US Patent 7891776 Nozzle arrangement with different sized heater elements

US Patent 7891777 Inkjet printhead with heaters mounted proximate thin nozzle layer

US Patent 7891778 Inkjet printhead assembly for symmetrical vapor bubble formation

US Patent 7896473 Low pressure nozzle for an inkjet printer

US Patent 7901029 Ink jet printing apparatus having enhanced print head maintenance

US Patent 7901047 Micro-electromechanical nozzle arrangement with an actuating mechanism having a shutter member

US Patent 7901050 Printhead integrated circuit with suspended heater elements

US Patent 7901051 Inkjet nozzle assembly having thermoelastic actuator beam disposed on nozzle chamber roof

US Patent 7901052 Thermal bend actuator comprising bilayered passive beam

US Patent 7901062 Ink compartment refill unit with inlet valve acutator, outlet valve, actuator, and constrictor mechanism actuator

US Patent 7905573 Liquid ejection head with nozzle plate deformed by heat and image forming apparatus including the liquid election head

US Patent 7905577 Printhead substrate having electrothermal transducers arranged at high density, printhead, and printing apparatus

US Patent 7909423 Ink jet recording head

US Patent 7909425 Inkjet printing head and substrate having fuses for storing information

US Patent 7914101 Ink jet printing apparatus with ink stirring by carriage reciprocation

US Patent 7914113 Print head having nozzles with varied spacing and inkjet printer including the same

US Patent 7918525 Nozzle arrangement with sealing structure and thermal actuator

US Patent 7918533 Printhead with printhead module locator

US Patent 7918536 Ink jet recording apparatus with adhesively bonded ink jet head chip

US Patent 7918538 Printhead formed of element substrates having function circuits

US Patent 7922293 Printhead having nozzle arrangements with magnetic paddle actuators

US Patent 7922294 Ink jet printhead with inner and outer heating loops

US Patent 7926912 Liquid discharge method, liquid discharge head and liquid discharge apparatus

US Patent 7926913 Inkjet nozzle assembly with thermal bend actuator defining part of nozzle chamber roof

US Patent 7926914 Liquid droplet transporting apparatus, and valve, memory, display unit using the liquid droplet transporting apparatus

US Patent 7931355 Liquid ejecting apparatus and platen unit

US Patent 7934802 Light irradiation device and inkjet printer

US Patent 7934804 Nozzle arrangement having uniform heater element conductors

US Patent 7934805 Nozzle arrangement having chamber with in collection well

US Patent 7934807 Printhead integrated circuit comprising polymeric cover layer

US Patent 7934810 Ink jet recording head including beams dividing supply ports

US Patent 7934813 Liquid ejection head

US Patent 7938503 Printhead maintenance station having contact pad with sloping profile

US Patent 7938509 Nozzle arrangement with sealing structure

US Patent 7938512 Methods and systems for laser processing

US Patent 7938518 Ink refill unit for an ink reservoir

US Patent 7938519 Refill unit for refilling one of a number of ink compartments

US Patent 7942500 Printhead with flex PCB bent between contacts and printhead IC

US Patent 7942502 Print engine cradle with maintenance assembly

US Patent 7942503 Printhead with nozzle face recess to contain ink floods

US Patent 7942504 Variable-volume nozzle arrangement

US Patent 7942508 Decreased actuation voltage in MEMS devices by constraining membrane displacement without using conductive “landing pad”

US Patent 7946679 Print cradle for retaining pagewidth print cartridge

US Patent 7946684 Method of manufacture and printer with elastic alignment features

US Patent 7946685 Printer with nozzles for generating vapor bubbles offset from nozzle axis

US Patent 7946697 Printing fluid supply device with channeled absorbent material

US Patent 7950774 Inkjet printhead with narrow printing zone

US Patent 7950776 Nozzle chambers having suspended heater elements

US Patent 7950780 Liquid jet head and image forming apparatus configured to obtain air bubble discharging properties

US Patent 7954927 Nozzle members, compositions, and methods for micro-fluid ejection heads

US Patent 7959261 Micro-fluid ejection devices having reduced input/output addressable heaters

US Patent 7963649 Computer monitor having inkjet printhead

US Patent 7967405 Methods and apparatus for image transfer

US Patent 7967416 Sealed nozzle arrangement for printhead

US Patent 7967417 Inkjet printhead with symetrical heater and nozzle sharing common plane of symmetry

US Patent 7967418 Printhead with nozzles having individual supply passages extending into substrate

US Patent 7967419 Ink jet printhead incorporating heater element proportionally sized to drop size

US Patent 7967420 Inkjet printhead nozzle arrangement having non-coincident low mass electrode and heater element

US Patent 7967425 Printhead assembly with ink supply shut off

US Patent 7971966 Ink jet recording head

US Patent 7971968 Printhead nozzle arrangement having variable volume nozzle chamber

US Patent 7976117 Printhead integrated circuit assembly with compensation controller

US Patent 7976123 Rotatable printhead array

US Patent 7976125 Printhead with low drag nozzles apertures

US Patent 7976127 Electrostatic actuator, droplet discharge head, methods for manufacturing the same and droplet discharge apparatus

US Patent 7976137 Print cartridge having enlarged end reservoirs

US Patent 7980657 Printhead assembly with air expulsion arrangement

US Patent 7980664 Inkjet printhead incorporating multiple heater elements for weighted ink drop ejection

US Patent 7980670 Inkjet printhead having selectively actuable nozzles arranged in nozzle pairs

US Patent 7980676 Liquid ejection head including member supporting liquid ejection substrate

US Patent 7984971 Printhead system with substrate channel supporting printhead and ink hose

US Patent 7984972 Printhead unit cell having rimmed nozzle plate

US Patent 7984975 Printhead nozzle cell having photoresist chamber

US Patent 7997686 Inkjet nozzle arrangement incorporating thermal differential actuator

US Patent 7997687 Printhead nozzle arrangement having interleaved heater elements

US Patent 8002386 Inkjet printhead having nozzle chambers with redundant ink inlets

US Patent 8002393 Print engine with a refillable printer cartridge and ink refill port

US Patent 8002394 Refill unit for fluid container

US Patent 8007072 Cleaning blade, method of fabricating cleaning blade, and cleaning apparatus for liquid discharge head

US Patent 8007074 Liquid discharge recording head

US Patent 8007075 Printhead having nozzle plate formed on fluid distributors

US Patent 8007083 Refill unit for incrementally filling fluid container