Did You Know...
...that a workman who left the soap mixing machine on too long was responsible for making Ivory Soap? He was so embarrassed by his mistake that he threw the mess in a stream. Imagine his dismay when the evidence of his error floated to the surface! Result: Ivory soap, the soap that floats.
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| Number | Title | Issue Date |
| 8141986 | Heating element A heating element of a fluid ejection device includes an insulative layer, a resistor portion interposed between and spaced apart from a pair of conductive portions, and an upper structure defining a fluid chamber above the resistor portion. The insulative layer def... | 03/27/2012 |
| 8087756 | Heater chips with silicon die bonded on silicon substrate A heater chip has a substrate and at least one die, made of silicon, and a bond non-adhesively attaching them. The substrate, thick enough to resist bowing, has ink supply vias from back to front surfaces. The die has ink flow vias from back to front surfaces and ci... | 01/03/2012 |
| 8052250 | Inkjet printer with droplet stem anchor An inkjet printer that has an array of ink chambers, each with a nozzle, a droplet stem anchor and a thermal actuator. The thermal actuator generates a vapor bubble in the ink chamber to eject ink through the nozzle. The thermal actuator has a plurality of heater el... | 11/08/2011 |
| 7992968 | Fluid ejection device with overlapping firing chamber and drive FET A fluid ejection device with a firing chamber from which fluid is ejected, a heating element that heats fluid in the firing chamber and, drive circuitry for the heating element having a field effect transistor (FET). At least part of the firing chamber overlaps the ... | 08/09/2011 |
| 7988260 | Recording element substrate and recording head including recording element substrate A recording element substrate includes a recording element array including a plurality of recording elements, a drive circuit configured to drive the recording elements, and a heater located to surround the recording element array as viewed in a direction perpendicu... | 08/02/2011 |
| 7963635 | Inkjet print head The landing precision of ink drops is improved to improve the image quality and increase the printing speed. An inkjet print head ejects ink supplied from an ink supply port from a plurality of ejection ports respectively connecting to ink paths having different flo... | 06/21/2011 |
| 7942505 | Inkjet nozzle arrangement having a nozzle rim to facilitate ink drop misdirection Provided is an inkjet nozzle arrangement for an inkjet printhead. The arrangement includes a wafer substrate defining sidewalls and a roof portion to form an ink chamber, the roof portion further defining a nozzle aperture, as well as a heater element suspended insi... | 05/17/2011 |
| 7938511 | Liquid ejection head, inkjet printing apparatus and liquid ejecting method Provided are a printing head and an inkjet printing apparatus, which eject liquid droplets without leaving behind any bubble in each nozzle, thus having an enhanced durability. An ejection port of the printing head includes a first ejection port part communicating w... | 05/10/2011 |
| 7922298 | Ink jet printhead with displaceable nozzle crown A printhead includes a substrate defining a plurality of ink inlet channels; a drive circuitry layer; and a plurality of nozzle arrangements. Each nozzle arrangement comprises a wall portion bounding a respective ink inlet channel, a crown portion defining an ink ou... | 04/12/2011 |
| 7810911 | Thermal inkjet printhead A thermal inkjet printhead includes a plurality of bonding pads to which an external voltage is applied, a plurality of common wires connected to the each of the bonding pads, respectively, a plurality of individual wires connected to each of the common wires, respe... | 10/12/2010 |
| 7766459 | Multi-coloured printhead nozzle array with rows of nozzle assemblies A printhead nozzle array includes groups of nozzle assemblies configured to eject respective colored inks. Each group has its nozzle assemblies arranged in rows. Each nozzle assembly includes a common substrate assembly. A nozzle is configured to contain ink and def... | 08/03/2010 |
| 7735971 | Printhead with elongate nozzles An inkjet printhead comprising: an array of ink chambers, each having a nozzle, an elongate actuator for ejecting ink through the nozzle; wherein, the nozzle has an elongate shape with its long dimension aligned with that of the elongate actuator. ... | 06/15/2010 |
| 7708387 | Printhead with multiple actuators in each chamber An inkjet printhead with multiple actuators and respective nozzles in each chamber, so that each actuator activates simultaneously from the same drive signal. By puffing multiple actuators in a single chamber, and providing each actuator with a corresponding nozzle ... | 05/04/2010 |
| 7695111 | Liquid discharge head and manufacturing method therefor A liquid discharge head includes a substrate, on which are formed energy generating members for generating energy to be used for the discharge of a liquid through a discharge port, and a precious metal protective layer for protecting the energy generating members, a... | 04/13/2010 |
| 7677702 | Inkjet printhead comprising bonded heater element and dielectric layer with low thermal product A thermal inkjet printhead with generally planar heater elements disposed in respective bubble forming chambers such that they are bonded on one side to the chamber so that the other side faces into the chamber. Each heater element receives an energizing pulse to he... | 03/16/2010 |
| 7669980 | Printhead having low energy heater elements A printhead is provided having a plurality of nozzles and a plurality of heater elements each for heating an ejectable liquid to cause ejection of a drop of the ejectable liquid from a respective one of the nozzles. Each heater element is configured such that the en... | 03/02/2010 |
| 7669981 | Ink jet print head substrate, ink jet print head, ink jet printing apparatus, and method of manufacturing ink jet print head substrate An ink jet print head substrate capable of precisely blowing fuse element to store data reliably is provided. An ink jet print head incorporating such a substrate and an ink jet printing apparatus are also provided. The interlayer insulating film formed over the fus... | 03/02/2010 |
| 7669979 | Inkjet printhead with an ink chamber having a movable circular paddle defining an annular aperture An inikjet printhead including an ink chamber. The ink chamber includes a nozzle defined in a first wall and an ink inlet aperture for introducing ink into the ink chamber. Also provided is a movable circular paddle positioned within the ink chamber for ejecting ink... | 03/02/2010 |
| 7597425 | Inkjet printhead with multiple heater elements in parallel An inkjet printhead comprising: an array of ink chambers, each having a nozzle and a thermal actuator for generating vapor bubbles to eject ink through the nozzle; wherein, the thermal actuator has a pair of contacts and at least two parallel current paths between t... | 10/06/2009 |
| 7568791 | Nozzle arrangement with a top wall portion having etchant holes therein The current invention provides for a nozzle arrangement for an inkjet printer. The nozzle arrangement includes a wafer substrate defining an ink supply channel therethrough, with side wall portions and a top wall portion arranged on the wafer substrate to define a n... | 08/04/2009 |
| 7556358 | Micro-electromechanical integrated circuit device with laminated actuators A micro-electromechanical integrated circuit includes a substrate. Drive circuitry is positioned on the substrate. The device includes a plurality of elongate actuators. Each actuator includes a fixed end portion fast with the substrate. A free end portion is spaced... | 07/07/2009 |
| 7533969 | Ink jet print head substrate, ink jet print head, ink jet printing apparatus, and method of manufacturing ink jet print head substrate An ink jet print head substrate capable of precisely blowing fuse element to store data reliably is provided. An ink jet print head incorporating such a substrate and an ink jet printing apparatus are also provided. The interlayer insulating film formed over the fus... | 05/19/2009 |
| 7470003 | Ink jet printhead with active and passive nozzle chamber structures arrayed on a substrate A printhead includes a substrate that defines a plurality of ink inlet channels. A drive circuitry layer is positioned on the substrate. A plurality of nozzle arrangements is positioned on the support. Each nozzle arrangement includes a wall portion bounding a respe... | 12/30/2008 |
| 7445317 | Inkjet printhead with droplet stem anchor An inkjet printhead that has an array of ink chambers, each having a nozzle, a droplet stem anchor and an actuator for ejecting ink through the nozzle. During use, the ink ejected from the nozzle is attached to the droplet stem anchor by an ink stem until the stem b... | 11/04/2008 |
| 7441875 | Inkjet printhead having rectilinear actuated ink ejection nozzles An inkjet printhead comprising a plurality of micro-electromechanical ink ejection nozzles is provided. Each nozzle comprises a nozzle chamber positioned on a substrate, and actuators and associated coupling structures for ejecting ink from the chamber. The nozzle c... | 10/28/2008 |
| 7434916 | Liquid ejection head Disclosed is a liquid ejection head capable of performing a stable ejection operation at high speed even when thermal expansion of a valve supporting member occurs during liquid ejection. This is because the liquid ejection head allows the thermal expansion to influ... | 10/14/2008 |
| 7431431 | Self passivating transition metal nitride printhead heaters A thermal inkjet printhead with heater elements formed from a self passivating transition metal nitride, but it oxidizes readily. By introducing an additive that allows the metal nitride to self passivate, the heater element forms a surface oxide layer, where the ox... | 10/07/2008 |
| 7431432 | Printhead that combines ink from adjacent actuators An inkjet printhead comprising: an array of nozzles; a plurality of actuators for ejecting ink through the nozzles such that a bulb of ink attached to a droplet stem forms prior to drop separation when the stem bre... | 10/07/2008 |
| 7419249 | Inkjet printhead with low thermal product layer A thermal inkjet printhead with generally planar heater elements disposed in respective bubble forming chambers such that they are bonded on one side to the chamber so that the other side faces into the chamber. Each heater element receives an energizing pulse to he... | 09/02/2008 |
| 7419250 | Micro-electromechanical liquid ejection device A micro-electromechanical device for ejecting liquid, such as ink, having a plurality of nozzle arrangements, each nozzle arrangement having a nozzle chamber, an actuator for ejecting the liquid from the nozzle chamber, and a heater to raise the temperature of the l... | 09/02/2008 |
| 7407271 | Self-cooling thermal ink jet printhead There is disclosed an ink jet printhead which comprises a plurality of nozzles and one or more heater elements corresponding to each nozzle. Each heater element is configured to heat a ejectable liquid in the printhead to a temperature above its boiling point to for... | 08/05/2008 |
| 7401901 | Inkjet printhead having nozzle plate supported by encapsulated photoresist An inkjet printhead is provided. The printhead comprises a plurality of nozzles formed on a substrate, and at least one nozzle plate spaced apart from the substrate. The nozzle plate is supported, at least partially, by encapsulated photoresist. Hence, the nozzle pl... | 07/22/2008 |
| 7398597 | Method of fabricating monolithic microelectromechanical fluid ejection device A method for forming a printhead having a very high dot-per-inch printing capability is described. The method includes forming a layer containing electronic control circuits upon a semiconductor wafer. Nozzle chambers are then etched into the wafer and corresponding... | 07/15/2008 |
| 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 |
| 7380915 | Ink jet recording head and producing method therefor In an ink jet recording head of an excellent discharge ability and a producing method therefor, a lateral wall of an ink supply aperture is covered with a minimum necessary ink-resistant protective film. The ink supply aperture is formed by etching an exposed portio... | 06/03/2008 |
| 7367656 | Ink-jet printhead and method for manufacturing the same In an ink-jet printhead and a method for manufacturing the same, the ink-jet printhead includes a substrate, an ink chamber to be filled with ink to be ejected formed on an upper surface of the substrate, a restrictor, which is a path through which ink is supplied f... | 05/06/2008 |
| 7364267 | Liquid ejection head A liquid ejection head can eject very fine droplets on the order of sub-picoliters. The liquid ejection head is provided with an ejection port for ejecting liquid as liquid droplets and comprises an energy generating element arranged vis-à-vis the ejection port to ... | 04/29/2008 |
| 7364272 | Printing head, head cartridge having printing head, printing apparatus using printing head, and printing head substrate A printing head which outputs an output from a sensor device provided for monitoring various condition of a printing head as digital data, and a printing apparatus using the printing head. The output from the device for detecting condition of the printing head, e.g.... | 04/29/2008 |
| 7350906 | Ink supply arrangement incorporating sets of passages for carrying respective types of ink An ink supply arrangement is provided for supplying ink to an inkjet printhead. The ink supply arrangement includes an elongate ink distribution molding, in turn, defining a printhead channel in which the printhead can be received. The ink distribution molding furth... | 04/01/2008 |
| 7334874 | Inkjet nozzle chamber with electrostatically attracted plates An inkjet drop ejection apparatus with a chamber with a nozzle; and spaced electrodes. The electrodes are mounted such that application of a voltage across the electrodes causes the electrodes to move relative to each other in order to eject drops of ink through sai... | 02/26/2008 |
