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| Number | Title | Issue Date |
| 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 formed; a chamber layer including a plurality of ink chambers formed on ... | 03/05/2013 |
| 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 ejection of a fluid, and second strata on the first strata to protect... | 02/05/2013 |
| 8287101 | Printhead stimulator/filter device printing method A method for forming drops includes providing a jetting module that includes a nozzle plate, portions of the nozzle plate defining a nozzle; a thermal stimulation membrane including a plurality of pores and one or more heating elements; and an enclosure extending fr... | 10/16/2012 |
| 8282196 | Micro electro mechanical system device and method of manufacturing the same A MEMS (Micro Electro Mechanical System) device and a method of manufacturing the same, in which an detection indicator is formed on a chamber layer stacked on a substrate such that a user easily inspects whether the chamber layer has a required thickness. The MEMS ... | 10/09/2012 |
| 8267504 | Printhead including integrated stimulator/filter device A jetting module includes a nozzle plate, a thermal stimulation membrane, and an enclosure. Portions of the nozzle plate define a nozzle. The thermal stimulation membrane includes a plurality of pores. At least one of the plurality of pores overlaps the nozzle when ... | 09/18/2012 |
| 8256878 | Substrate for ink ejection heads, ink ejection head, method of manufacturing substrate, and method of manufacturing ink ejection head A liquid ejection head according to the present invention includes a heat-generating resistor layer, a first electrode layer, an insulating layer extending over the heat-generating resistive layers and the first electrode layer, and a second electrode layer that has... | 09/04/2012 |
| 8251496 | Liquid discharge head having resin supply and support members The invention provides, between a discharge element substrate and a supply member, a support member containing a mixture that contains: a material having an affinity for a material forming the supply member; and another material. ... | 08/28/2012 |
| 8226213 | Short pulsewidth actuation of thermal bend actuator A method of actuating a thermal bend actuator having an active beam fused to a passive beam. The method comprises passing an electrical current through the active beam so as to cause thermoelastic expansion of the active beam relative to the passive beam and bending... | 07/24/2012 |
| 8182072 | Substrate for inkjet printing head and method for manufacturing the substrate There is provided a substrate for an inkjet printing head and a method for manufacturing the same, in which the substrate has a structure that different kinds of metals do not come into contact with ink or moisture. For this purpose, the structure is constituted suc... | 05/22/2012 |
| 8172370 | Planar heater stack and method for making planar heater stack A heater stack includes first strata configured to form a fluid heater element responsive to energy from repetitive electrical activation and deactivation to fire repetitive cycles of heating and ejecting fluid from an ejection chamber above the fluid heater element... | 05/08/2012 |
| 8172371 | Liquid ejection head having protective layer containing a noble metal A print head formed in a simplified and less costly manufacture process can be effective in preventing the peeling-off between a substrate and a flow passage forming member. In the print head, a protective layer is formed between the flow passage forming member and ... | 05/08/2012 |
| 8157358 | Liquid ejection head substrate and liquid ejection head A liquid ejection head substrate includes a primary conductive layer; an insulating layer; a pair of secondary conductive layers; a first connecting portion where the primary conductive layer is electrically connected to the secondary conductive layers, the first co... | 04/17/2012 |
| 8104875 | Liquid jet recording head A liquid jet recording head includes a substrate on which are formed recording elements that generate energy for ejecting liquid, and a flow passage forming member that is in contact with the substrate and in which are formed ejection ports that eject liquid and flo... | 01/31/2012 |
| 8083324 | Inkjet printhead and method of manufacturing the same Inkjet printheads and methods of manufacturing the inkjet printhead are disclosed. The inkjet printhead may include a glue layer disposed between the substrate and a chamber layer. The glue layer may contain a crosslink inhibitor that inhibits cross linkage of a pho... | 12/27/2011 |
| 8079672 | Heater stack and method for making heater stack with cavity between heater element and substrate A heater stack includes first strata configured to support and form a fluid heater element responsive to repetitive electrical activation and deactivation to produce repetitive cycles of fluid ejection from an ejection chamber above the heater element and second str... | 12/20/2011 |
| 8070264 | Micro-fluid ejection heads with multiple glass layers Methods for fabricating micro-fluid ejection heads and micro-fluid ejection heads are provided herein, such as those that use non-conventional substrates. One such micro-fluid ejection head includes a substrate having first and second glass layers disposed adjacent ... | 12/06/2011 |
| 8007077 | Inkjet head An inkjet head includes a recording element substrate, on which sets of energy generating elements generating energy to discharge ink and a supply port supplying ink to discharge ports are arranged, and an orifice plate including the discharge ports. The sets includ... | 08/30/2011 |
| 7946687 | Thermal bend actuator comprising bent active beam having resistive heating bars A thermal bend actuator comprising: (a) a pair of electrical contacts positioned at one end of the actuator; (b) an active beam connected to the electrical contacts and extending longitudinally away from the contacts, the active beam defining a bent current flow pat... | 05/24/2011 |
| 7942507 | Ink jet nozzle arrangement with a segmented actuator nozzle chamber cover A nozzle arrangement for an inkjet printer comprises a nozzle chamber; an ink supply channel for supplying ink to the nozzle chamber; a cover for covering the nozzle chamber, the cover defining an ink ejection port through which ink is ejected; a plurality of therma... | 05/17/2011 |
| 7942506 | Inkjet printer head and method to manufacture the same An inkjet printer head includes a substrate, an insulating layer having a groove and disposed on the substrate, a heating member having a concavely curved upper surface and disposed on an upper portion of the groove, an electrode to make contact with the heating mem... | 05/17/2011 |
| 7934810 | Ink jet recording head including beams dividing supply ports An ink jet recording head has sufficient and uniform ink refill for all orifices and separate flow paths even though the substrate has high rigidity by dividing a supply port into a plurality of ports. The substrate of the ink jet recording head has a plurality of s... | 05/03/2011 |
| 7926916 | Adhesive joint with an ink trap and method An adhesive joint with an ink trap is provided. The joint may be employed in a cartridge for an inkjet printer. The cartridge includes a headland region attached to a printhead assembly by an adhesive layer. The adhesive joint between the headland region and the pri... | 04/19/2011 |
| 7918541 | Micro-electromechanical integrated circuit device with laminated actuators A micro-electromechanical integrated circuit device comprises a substrate; drive circuitry positioned on the substrate; and a plurality of elongate actuators. Each actuator comprises a fixed end portion fast with the substrate, a free end portion that is spaced from... | 04/05/2011 |
| 7914123 | Inkjet printhead and manufacturing method thereof An inkjet printhead and a manufacturing method thereof. In the manufacturing method, a chip and a porous material are provided. A heating layer is formed on the chip. A conductive layer is formed on the heating layer, and includes a notch therein to define a heating... | 03/29/2011 |
| 7901058 | Inkjet printer nozzle arrangement having thermal actuator with inner and outer portion of inverse profile A nozzle arrangement for an inkjet printhead. The nozzle arrangement comprising a wafer substrate assembly defining an ink inlet channel; a static ink ejection structure extending from the substrate assembly and bounding the ink inlet channel; a pair of thermal bend... | 03/08/2011 |
| 7901057 | Thermal inkjet printhead on a metallic substrate A printhead and method of forming the printhead are provided. The method includes forming an ink feed passage through a print head substrate by providing a metallic substrate having a first surface and a second surface; providing an ink ejector structure on a first ... | 03/08/2011 |
| 7862158 | Method of manufacturing ink jet recording head, ink jet cartridge A method of manufacturing an ink jet head which discharges ink, comprising: a step of preparing a silicon substrate; a step of forming a membrane having a layer in which a plurality of holes are disposed to constitute a filter mask, and a layer with which a first su... | 01/04/2011 |
| 7841704 | Inkjet printhead with small nozzle spacing An ink jet printhead with an array of nozzles unit cells 1. Each of the unit cells having one or more heaters 10 configured to form a gas bubble 12 in ejectable liquid held in the nozzle chamber. The generation of the bubble 12 causes the... | 11/30/2010 |
| 7802873 | Nozzle arrangement with a movement sensor for an inkjet printer The invention provides for a nozzle arrangement for an inkjet printer. The arrangement includes a wafer substrate defining a chamber with an ink inlet and ejection port, the substrate having a micro-electromechanical drive layer. The arrangement also includes a padd... | 09/28/2010 |
| 7798612 | Microfluidic architecture A microfluidic architecture is disclosed. The microfluidic architecture includes a substrate having an edge and a thin film stack established on at least a portion of the substrate adjacent the edge. The thin film stack includes a non-conducting layer and a seed lay... | 09/21/2010 |
| 7794059 | Inkjet printhead nozzle with a patterned surface A nozzle is provided for an inkjet printhead. The nozzle includes a wafer assembly defining an ink supply channel. A chamber roof layer is supported by the wafer assembly. The chamber roof layer defines a nozzle chamber in fluid communication with the ink supply cha... | 09/14/2010 |
| 7794060 | Inkjet printhead integrated circuit with rectifying valves Provided is a unit cell arrangement for an inkjet printhead. The unit cell arrangement includes a substrate that defines an ink inlet and sidewalls supporting a roof portion on the wafer substrate to form an ink chamber. The roof portion defines at least one nozzle ... | 09/14/2010 |
| 7784917 | Process for making a micro-fluid ejection head structure A method of making a micro-fluid ejection head structure and micro-fluid ejection heads made by the method. The method includes applying a tantalum oxide layer to a surface of a fluid ejection actuator disposed on a device surface of a substrate so that the tantalum... | 08/31/2010 |
| 7784918 | Low energy, long life micro-fluid ejection device Micro-fluid ejection heads and methods for extending the life of micro-fluid ejection heads. One such micro-fluid ejection head includes a substrate having a plurality of thermal ejection actuators. Each of the thermal ejection actuators has a resistive layer and a ... | 08/31/2010 |
| 7784916 | Micro-fluid ejection heads with multiple glass layers Methods for fabricating micro-fluid ejection heads and micro-fluid ejection heads are provided herein, such as those that use non-conventional substrates. One such micro-fluid ejection head includes a substrate having first and second glass layers disposed adjacent ... | 08/31/2010 |
| 7731338 | Ink-jet printer head having laminated protective layer and method of fabricating the same A heat transfer type ink-jet print head and a method of fabricating the same. A method of fabricating an ink-jet print head includes sequentially laminating a heat generation layer and an electrode layer on a substrate, laminating a protective layer on the top surfa... | 06/08/2010 |
| 7681993 | Circuit board for ink jet head, method of manufacturing the same, and ink jet head using the same An ink jet head circuit board is provided which has heaters to generate thermal energy for ejecting ink as they are energized. This circuit board is so constructed as to reduce wire resistances for the heaters while at the same time preventing an increase in the siz... | 03/23/2010 |
| 7625072 | Ink jet recording head and recording apparatus In order to dissipate to a high degree of efficiency the heat of a liquid discharge substrate of an ink jet recording head and effectively suppress increases in the substrate temperature, in an ink jet recording head in which a liquid discharge substrate is mounted ... | 12/01/2009 |
| 7607759 | Inkjet printhead and method of manufacturing the same An inkjet printhead and a method of manufacturing the same. In the inkjet printhead, a substrate includes an ink chamber formed in a top surface to contain ink to be ejected, an ink feedhole formed in a bottom surface to supply the ink to the ink chamber, and a rest... | 10/27/2009 |
| 7600859 | Inkjet printhead and manufacturing method thereof An inkjet printhead and a manufacturing method thereof. In the manufacturing method, a chip and a porous material are provided. A heating layer is formed on the chip. A conductive layer is formed on the heating layer, and includes a notch therein to define a heating... | 10/13/2009 |
