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6154237 Liquid ejecting method, liquid ejecting head and liquid ejecting apparatus in which motion of a movable member is controlled  
A liquid ejecting method for ejecting liquid by generation of a bubble includes preparing a head comprising an ejection outlet for ejecting the liquid, a bubble generation region for generating the...
6154236 Acoustic ink jet printhead design and method of operation utilizing flowing coolant and an emission fluid  
A droplet emitter with an array of droplet emitting devices constructed such that one flowing liquid is used to create the droplets while a second low acoustic impedance liquid can be used to both...
6151049 Liquid discharge head, recovery method and manufacturing method for liquid discharge head, and liquid discharge apparatus using liquid discharge head  
According to the present invention, the liquid discharge head comprises a first liquid flow path communicating with a discharge opening for discharging liquid, a second liquid flow path having a...
6151042 High performance polymer compositions  
Disclosed is a composition comprising a polymer with a weight average molecular weight of from about 1,000 to about 100,000, said polymer containing at least some monomer repeat units with a first,...
6149257 Ink-jet printing apparatus capable of increased image uniformity  
A high resolution head having smaller ejection amount and a low resolution head having larger ejection amount are employed. With respect to an image to be printed, an image separating portion...
6146914 Thermal ink jet printhead with increased heater resistor control  
An improved method is disclosed for forming heater elements for an ink jet printhead. The resistance is more closely controlled by doping a central heater region which is formed relatively thinner...
6145965 Method for manufacturing an ink jet head, and an ink jet head  
A method for manufacturing an ink jet head comprises a first step of arranging on a substrate a passage molding material to form ink paths conductively connected to discharge ports for discharging...
6142613 Liquid discharging head  
A liquid discharging head having a discharge port, a liquid flow path communicating with the discharge port, a bubble generation area on the liquid flow path, and a movable member. The movable...
6137510 Ink jet head  
There is disclosed an ink jet head comprising plural discharge energy generating elements for generating energy to be used for discharging ink droplets, ink discharge openings for discharging the...
6137443 Single-side fabrication process for forming inkjet monolithic printing element array on a substrate  
A monolithic inkjet printhead is formed using single-side fabrication processes. Printing elements and feed channels are formed by processes working from a top of the die. During formation of the...
6132034 Ink jet print head with flow control contour  
An ink jet print head with a substrate defining an ink aperture. A two-elevation structure in an ink manifold acts to urge coalescing bubbles away from ink energizing elements. A number of ink...
6132033 Inkjet print head with flow control manifold and columnar structures  
An ink jet print head with a substrate defining an ink aperture. A number of ink energizing elements are located on the major surface of the substrate. A barrier layer is connected to the upper...
6130693 Ink jet printhead which prevents accumulation of air bubbles therein and method of fabrication thereof  
A printhead and method of fabrication thereof provides that the printhead reservoir has substantially the same cross-sectional ink flow area as the total cross-sectional area of the plurality of...
6130690 Ink jet print head using membrane  
An ink jet print head comprises: a heating unit for heating working liquid provided through a working liquid path depending upon electric energy applied from the outside; and a membrane formed to...
6126277 Non-kogating, low turn on energy thin film structure for very low drop volume thermal ink jet pens  
An ink jet printhead structure having a silicon carbide layer, an ink barrier layer disposed on the silicon carbide layer and respective ink chambers formed in the ink barrier layer over respective...
6126276 Fluid jet printhead with integrated heat-sink  
A printhead used to eject fluid onto a recording medium has an integrated heat-sink which is used to cool the energy dissipation elements used to propel the fluid from the printhead. The printhead...
6120136 Liquid jet head, a head cartridge, a liquid jet recording apparatus, and a method for manufacturing liquid jet heads  
A liquid jet head is provided with a first bubble generating device for enabling a first flow path conductively connected with a first discharge opening to create a bubble for the formation of...
6113224 Liquid ejecting method, liquid ejecting head, head cartridge and liquid ejecting apparatus using same  
A liquid ejecting method includes displacing a movable member having a free end by bubble generation in a bubble generating region; the improvement residing in: that a fulcrum of said movable...
6113223 Ink jet recording head with ink chamber having slanted surfaces to aid bubble removal  
An ink jet recording apparatus includes a liquid passage for ejection of ink; a liquid chamber for supplying ink to the passage; a device for mounting the recording head on the ink jet recording...
6109735 Liquid discharging method, liquid supplying method, liquid discharge head, liquid discharge head cartridge using such liquid discharge head, and liquid discharge apparatus  
A liquid discharging method is provided with heat generating elements for creating air bubbles for discharging liquid, discharge ports arranged corresponding to the heat generating elements, first...
6109734 Ink-jet head, ink-jet apparatus and method of filling buffer chamber with bubbles  
An ink jet head having a buffer chamber which absorbs any back-pressure wave generated as a result of generation of back wave, thereby preventing reduction of refilling with ink. Exothermic...
6106111 Liquid container, head cartridge, liquid ejecting apparatus and liquid ejection control method  
A liquid ejecting head cartridge includes a liquid ejection head, the liquid ejection head including; a first liquid flow path in fluid communication with an ejection outlet; bubble generation...
6106105 Recording apparatus having a meniscus forming area and method of manufacturing same  
Disclosed are a recording apparatus capable of forming such a meniscus of a dye as to allow the dye to be supplied to a dye flying portion without interruption and to be held in the dye flying...
6102530 Apparatus and method for using bubble as virtual valve in microinjector to eject fluid  
An apparatus and method for forming a bubble within a microchannel of a microinjector to function as a valve mechanism between the chamber and manifold, that provides for a high resistance to...
6102529 Liquid ejecting method with movable member  
A liquid ejecting method for ejecting a liquid comprises using a liquid ejecting head having an ejection outlet portion having an ejection outlet for ejecting the liquid, a liquid flow path in...
6095640 Liquid discharge head, liquid discharge method, head cartridge and liquid discharge device  
In accordance with the present invention, there is provided a liquid discharge head comprising a discharge port for discharging liquid, a liquid flow path provided with a bubble generation means...
6095639 Method for preserving a liquid-ejection head, and liquid-ejection apparatus  
A method for preserving a liquid-ejection head is disclosed. The method uses the liquid-ejection head having a first liquid-flowing passage that receives a supply of a first liquid and communicates...
6084616 Liquid ejecting head, liquid ejecting device and liquid ejecting method  
A liquid ejecting method includes providing a liquid ejection outlet; providing a first liquid flow path for first liquid in fluid communication with the liquid ejection outlet; providing a second...
6079819 Ink jet printhead having a low cross talk ink channel structure  
An ink jet printhead is disclosed which has a heater plate containing the heating elements and driving circuitry means monolithographically formed on one surface thereof and the ink flow directing...
6076912 Thermally conductive, corrosion resistant printhead structure  
The invention described in the specification relates to a carrier for an ink jet printhead having unique characteristics which substantially inhibit corrosion and provide improved thermal heat...
6074543 Method for producing liquid ejecting head  
A method to produce a liquid ejecting head having an ejection outlet for ejecting a liquid, a heat generating element for applying thermal energy to the liquid, a liquid flow path comprised of a...
6074043 Spray device for ink-jet printer having a multilayer membrane for ejecting ink  
A spray device for an ink-jet printer includes a resistor layer, selectively formed on a substrate for generating heat; a pair of electrodes, formed on the resistor layer, for supplying electrical...
6074038 Ink jet printer and ink jet print head thereof  
A nozzle arrangement structure in an ink jet print head. A plurality of pressure chambers are arranged in circular form, and a plurality of nozzles receive an ink supply from the corresponding...
6070970 Liquid discharging method and liquid-discharge head, ink-jet recording method and head for ink-jet recording method  
Disclosed herein is a liquid discharging method, comprising using a liquid-discharge head equipped with a discharge opening from which a liquid is discharged, a first region to which a first liquid...
6062681 Bubble valve and bubble valve-based pressure regulator  
A bubble valve that comprises a liquid delivery channel and a localized heating arrangement. The liquid delivery channel includes an upstream portion and a constriction downstream of the upstream...
6062680 Liquid ejection head and apparatus and liquid ejection method  
A liquid ejecting head having at least two liquid ejecting head portions, the liquid ejecting head portions each includes a plurality of ejection outlets for ejecting liquid; a plurality of bubble...
6062671 Liquid ejection apparatus and a recovery method thereof  
An apparatus uses a liquid ejection head including a first liquid passage communicating with an ejection port, a second liquid passage separated from the first liquid passage by a separation wall,...
6059395 Inkjet recording head  
A recording head comprises a first head member that expels large-diameter ink drops and a second head member that expels small-diameter ink drops. Each of the first head member and the second head...
6053599 Liquid jet printing head and printing apparatus having the liquid jet printing head  
A printing head designed to have a long life, particularly to be able to maintain a long duration life of a heater portion and improved qualities of printed images with improved stability and to...
6045214 Ink jet printer nozzle plate having improved flow feature design and method of making nozzle plates  
A nozzle plate for an ink jet print head and method therefor is provided. The nozzle plate has a polymeric layer, an adhesive layer attached to the polymeric layer defining a nozzle plate thickness...
6042222 Pinch point angle variation among multiple nozzle feed channels  
An inkjet printhead includes multiple printing elements grouped in sets about an ink refill channel. Each printing element includes a nozzle chamber and firing resistor. Respective nozzle chambers...
6041501 Process for producing ink-jet recording head  
The process of the present invention for producing an ink-jet recording head is simple and does not require an additional solid layer on a first solid layer. The process comprises the steps of...
6039439 Ink jet heater chip module  
A heater chip module is provided comprising a carrier adapted to be secured to an ink-filled container, at least one heater chip having a base coupled to the carrier, and at least one nozzle plate...
6039437 Ink-jet head and ink-jet printing apparatus incorporating the same  
An ink-jet head reduces bubbles retained in a liquid chamber and restricts growth of the bubbles, for facilitating recovery operation. Also, the ink-jet head makes a substrate, on which the...
6024440 Nozzle array for printhead  
A nozzle plate for an inkjet printer including a first nozzle array having a plurality of nozzles, each of which is positioned to correspond to a desired print location, with the print location of...
6022482 Monolithic ink jet printhead  
A method and structure are described for a monolithic roofshooter ink jet printhead which has nozzles and ink channels formed in a polyimide layer overlying a silicon substrate. Resistor heaters,...
6022100 Liquid jet recording head having internal structure for controlling droplet ejection and ink flow  
A recording head includes a liquid ejecting outlet, a liquid passage communicating with the ejection outlet, and a heat generating resistor for supplying heat to the liquid in a heat acting portion...
6019457 Ink jet print device and print head or print apparatus using the same  
An ink jet print device includes a passageway for flowing ink having an outlet for ejecting ink at one end. The passageway has a portion where the cross-sectional dimensions of the passageway...
6010208 Nozzle array for printhead  
The invention described in the specification relates to a nozzle plate for an inkjet printer including a first nozzle array having a plurality of nozzles, each of which is positioned to correspond...
6007188 Particle tolerant printhead  
Islands of barrier layer material of an inkjet printhead are disposed between an ink source and the ink feed channels leading to the ink firing chambers to filter particles in the ink. Dimensions...