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| Number | Title | Issue Date |
| 7628472 | Ink-jet recording head An ink-jet recording head includes a discharge-port portion including a first discharge-port portion continuing from a discharge port, and a second discharge-port portion communicating the first discharge-port portion with a bubble generation chamber. The second dis... | 12/08/2009 |
| 7585056 | Liquid discharge head An ink jet recording head can, when a smaller liquid droplet is obtained, suppress or reduce stagnation of liquid in a second discharge port portion, prevent an offset meniscus in a discharge port, reduce unstable satellite(s) and realize stable discharging with les... | 09/08/2009 |
| 7571990 | Inkjet heads An inkjet head includes a passage member having an ink passage formed therein. The ink passage has a first end and a second end opposite the second end, and the ink passage includes a supply port configured to receive an ink from an outside of the passage member and... | 08/11/2009 |
| 7566117 | Inkjet recording head and inkjet recording device The present invention provides an inkjet recording head and inkjet recording device which can eject a high viscosity ink at ordinary temperature. The inkjet recording head has a nozzle portion ejecting an ink drop; an ink flow path member including the nozzle portio... | 07/28/2009 |
| 7549736 | Printhead assembly having ink flow channels to accommodate offset chips A printhead body includes a floor having an interior side and an exterior side. A first set of body vias extend through the floor from the interior side to the exterior side. The first set of body vias is positioned to supply ink to a first micro-fluid ejection chip... | 06/23/2009 |
| 7540593 | Fluid ejection assembly A fluid ejection assembly includes a first layer, and a second layer positioned on a side of the first layer. The second layer has a side adjacent the side of the first layer and includes a drop ejecting element formed on the side and a fluid pathway communicated wi... | 06/02/2009 |
| 7540594 | Printhead assembly having vertically overlapping ink flow channels A printhead body for mounting a micro-fluid ejection chip includes a floor having an interior side and an exterior side, the exterior side being configured for mounting at least one micro-fluid ejection chip. A plurality of body vias extends through the floor from t... | 06/02/2009 |
| 7524037 | Inkjet recording apparatus An inkjet recording apparatus includes an inkjet head and a frame supporting the inkjet head. The inkjet head includes a channel unit is fixed to the reservoir unit and a reservoir unit. The reservoir unit includes a laminated structure in which plural plate members... | 04/28/2009 |
| 7524036 | Liquid ejection head and liquid ejection apparatus The liquid ejection head having a nozzle through which liquid is ejected, the nozzle having an inertance Mn; a pressure chamber which accommodates the liquid to be ejected through the nozzle; a pressuring device which applies pressure to the liquid accommodated in t... | 04/28/2009 |
| 7524035 | Fluid ejection device A fluid ejection device includes an orifice structure with an orifice. A fluid reservoir is on the exterior surface of the orifice structure. A barrier portion is between the fluid reservoir and the orifice. ... | 04/28/2009 |
| 7475966 | Liquid discharge recording head and method for manufacturing same A liquid discharge recording head in which a nozzle plate is formed from inorganic material can be manufactured at low cost and with good through-put. In the liquid discharge recording head, a nozzle plate formed from inorganic material is stacked on a front surface... | 01/13/2009 |
| 7472986 | Liquid droplet discharge head and liquid droplet discharge device The liquid droplet discharge head comprises: a plurality of liquid chambers formed with nozzles which discharge droplets of liquid, the plurality of liquid chambers being arranged two-dimensionally; a plurality of liquid pressure application devices each of which ca... | 01/06/2009 |
| 7470004 | Liquid ejection head and liquid ejection device A flow path structure includes a heating element, a barrier layer, a liquid chamber formed by a part of the barrier layer and a pair of walls confronting each other to hold the heating element therebetween and a first individual flow path and a second individual flo... | 12/30/2008 |
| 7470005 | Nozzle arrangement with a movement sensor for an inkjet printer The invention provides for a nozzle arrangement for an inkjet printer. The nozzle arrangement includes a substrate defining a chamber with an ink inlet and ejection port, said substrate having a CMOS drive layer, and a paddle dividing said chamber into an ink chambe... | 12/30/2008 |
| 7441865 | Printhead chip having longitudinal ink supply channels A pagewidth inkjet printhead is provided. The printhead comprises: (a) a plurality of nozzles formed on a frontside of a substrate, each nozzle having a respective nozzle inlet; and (b) a plurality of ink supply channels. Each ink supply channel is configured for su... | 10/28/2008 |
| 7438391 | Micro-electromechanical nozzle arrangement with non-wicking roof structure for an inkjet printhead The invention relates to a micro-electromechanical nozzle arrangement for an inkjet printhead. The nozzle arrangement includes a substrate defining an inverted pyramidal ink chamber with an ink supply channel leading through the substrate, the substrate having a lay... | 10/21/2008 |
| 7438392 | Microfluidic substrates having improved fluidic channels A method for improving fluidic flow for a microfluidic device having a through hole or slot therein. The method includes the steps of forming one or more openings through at least part of a thickness of a substrate from a first surface to an opposite second surface ... | 10/21/2008 |
| 7431427 | Ink supply arrangement with improved ink flows A portable inkjet printer comprises an elongate pagewidth printhead having a plurality of ink supply passages, an elongate pagewidth ink distribution manifold connected to the printhead and an elongate pagewidth ink supply unit connected to the manifold. The ink sup... | 10/07/2008 |
| 7431429 | Printhead integrated circuit with planar actuators A printhead integrated circuit for an inkjet printhead that includes a wafer substrate that defines a plurality of ink inlet channels. Drive circuitry is positioned on the wafer substrate. A plurality of nozzle chamber structures is positioned on the wafer substrate... | 10/07/2008 |
| 7431434 | Fluid ejection device A fluid ejection device includes a fluid chamber, a fluid restriction communicated with the fluid chamber, and a fluid channel communicated with the fluid restriction, wherein a width of the fluid restriction is in a range of approximately 8 microns to approximately... | 10/07/2008 |
| 7427125 | Inkjet printhead An inkjet printhead includes a substrate having an ink feed hole formed therethrough and a plurality of ink drop generators formed on the substrate. The drop generators define a stagger pattern, and the ink feed hole defines a sidewall that is shaped so as to match ... | 09/23/2008 |
| 7425052 | Printhead assembly having improved adhesive bond strength A printhead assembly is provided. The printhead assembly comprises (a) a plurality of printhead integrated circuits comprising; and (b) an ink manifold having a mounting surface, the backside of each printhead integrated circuit being bonded to the mounting surface ... | 09/16/2008 |
| 7425053 | Printhead assembly with a laminated ink distribution assembly A pagewidth inkjet printhead assembly includes an elongate ink distribution arrangement that defines a number of inlets, a number of corresponding ink distribution channels and a number of outlets in fluid communication with respective ink distribution channels. An ... | 09/16/2008 |
| 7423073 | Radiation curable compositions having improved flexibility A radiation curable resin composition having improved flexibility. The radiation curable composition having from about 5 to about 50 weight percent of a difunctional polymeric compound; from about 1 to about 10 weight percent of a photoinitiator; from about 1 to abo... | 09/09/2008 |
| 7416280 | Inkjet printhead with hollow drop ejection chamber formed partly of actuator material An inkjet drop ejection apparatus with a chamber, an actuator, and a nozzle, where drops of ink are ejected through the nozzle, and where the chamber comprises a hollow structure formed on a semiconductor substrate. The chamber is partly formed of the same material ... | 08/26/2008 |
| 7413671 | Method of fabricating a printhead integrated circuit with a nozzle chamber in a wafer substrate A method of fabricating a printhead integrated circuit includes the step of forming a first layer of a polymeric material on a substrate that incorporates drive circuitry. A heater element is formed on the first layer of polymeric material to be connected to the dri... | 08/19/2008 |
| 7410247 | Liquid ejection head and liquid ejection apparatus A liquid ejection head including at least one head chip including a plurality of heating elements on a surface of a substrate, a nozzle sheet having nozzles disposed on the respective heating elements, a barrier layer disposed between the head chip and the nozzle sh... | 08/12/2008 |
| 7410243 | Inkjet nozzle with resiliently biased ejection actuator An inkjet drop ejection apparatus with an actuator for applying an ejection force to ink within the chamber to eject drops from the nozzle; wherein, the actuator is resiliently biased such that during each actuation, the ejection force linearly decreases to zero. By... | 08/12/2008 |
| 7407264 | Liquid discharging apparatus and liquid discharging method In a liquid discharging method for discharging droplets from a plurality of droplet discharging portions of a liquid discharging head, an actual pattern is created to indicate the discharging states of the droplets from the liquid discharging portions, and informati... | 08/05/2008 |
| 7407269 | Ink jet nozzle assembly including displaceable ink pusher An ink jet printhead chip includes a substrate. Drive circuitry is positioned in the substrate. A plurality of nozzle arrangements is positioned on the substrate. Each nozzle arrangement includes nozzle chamber walls and a roof wall that define a nozzle chamber and ... | 08/05/2008 |
| 7404625 | Ink jet nozzle arrangement having paddle forming a portion of a wall An ink jet nozzle arrangement for a printhead is provided. The nozzle arrangement includes nozzle chamber for storing ink to be ejected, at least one moveable actuator paddle forming at least a portion of a first wall of said nozzle chamber, and an ink ejection nozz... | 07/29/2008 |
| 7401884 | Inkjet printhead with integral nozzle plate An inkjet drop ejection apparatus comprising: a chamber with a side wall and a nozzle wall, the nozzle wall defining an ink ejection nozzle; and, an actuator for ejecting drops of ink through the nozzle; ... | 07/22/2008 |
| 7401900 | Inkjet nozzle with long ink supply channel An inkjet nozzle with an elongate ink inlet channel at least 150 microns long. The channel defines a straight flow path of a length sufficient to provide enough viscous damping to prevent significant reverse flow of ink in the channel when an ink drop is ejected fro... | 07/22/2008 |
| 7399063 | Micro-electromechanical fluid ejection device with through-wafer inlets and nozzle chambers A micro-electromechanical fluid ejection device includes a substrate. Drive circuitry is arranged on an outlet side of the substrate. A plurality of nozzle chambers and corresponding fluid inlets is etched into the substrate. A plurality of support structures is pos... | 07/15/2008 |
| 7399003 | Duct connecting structure A plurality of cylindrical port defining portions project from a passage defining member defining a plurality of passages. A supply line defining body defining a plurality of supply lines is formed of an elastic member. The supply line defining body includes a plura... | 07/15/2008 |
| 7393083 | Inkjet printer with low nozzle to chamber cross-section ratio An inkjet drop ejection apparatus having a chamber with a nozzle; and, an actuator for ejecting drops of ink through the nozzle; wherein, the area defined by the nozzle is less than half a cross sectional area of t... | 07/01/2008 |
| 7387371 | Liquid discharge head An ink jet recording head can, when a smaller liquid droplet is obtained, suppress or reduce stagnation of liquid in a second discharge port portion, prevent an offset meniscus in a discharge port, reduce unstable satellite(s) and realize stable discharging with les... | 06/17/2008 |
| 7387365 | Nozzle for an inkjet printer incorporating a plunger assembly A nozzle is provided for an inkjet printer. The nozzle includes a cover defining a nozzle port. A substrate assembly is fast with the cover, and defines a nozzle chamber in fluid communication with the nozzle port and into which ink can be supplied. A plate is fast ... | 06/17/2008 |
| 7387364 | Ink jet nozzle arrangement with static and dynamic structures A nozzle arrangement for a printhead integrated circuit is configured to be replicated on a wafer substrate incorporating drive circuitry so that the printhead integrated circuit comprises an array of the nozzle arrangements. The nozzle arrangement includes a static... | 06/17/2008 |
| 7387368 | Pagewidth printhead having sealed inkjet actuators An inkjet printhead is provided having an elongate ink supply channel defined within a substrate and a plurality of inkjet nozzles arranged on the substrate to extend across a pagewidth. Each nozzle incorporates an actuator of a conductive heater, a paddle and an ar... | 06/17/2008 |
