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| Number | Title | Issue Date |
| 8123337 | Droplet deposition apparatus A droplet deposition apparatus having an array of fluid chambers defined by a pair of opposing chamber walls, and in fluid communication with a nozzle for droplet ejection therefrom; a cover member is joined to the edges of the chamber walls and thus seals one side ... | 02/28/2012 |
| 8118411 | Inkjet head manufacturing method and inkjet head A flow path regulating member 3 is formed on the rear surface of the head chip 1A, wherein the channels 12 and 13, and drive walls 11 made up of piezoelectric elements are arranged alternately, the apertures of the channels 12 | 02/21/2012 |
| 8052252 | Droplet deposition apparatus A component for a printhead is created by forming a PZT wafer forming a region of SU8 photoresist material on one side of the PZT wafer; sawing in a second side of said planar body, opposite said first side, actuator channels to a depth sufficient to expose an area ... | 11/08/2011 |
| 7905579 | Shear mode-type piezoelectric actuator and liquid droplet ejection head This invention provides a shear mode-type piezoelectric actuator using a piezoelectric ceramic composition free from lead having a high coercive electric field and a liquid ejection head having the shear mode-type piezoelectric actuator. The shear mode-type piezoele... | 03/15/2011 |
| 7845768 | Liquid droplet ejection head Disclose is a liquid droplet ejection head comprising; a piezoelectric actuator using a piezoelectric porcelain composition containing no lead and having low temperature dependence of piezoelectric constant, Specifically disclosed ... | 12/07/2010 |
| 7780273 | Droplet deposition apparatus An actuator taking the form of a piezoelectric wall separating two chambers, which utilizes two actuation modes. Both actuation modes cause volume displacements in both chambers, but act to reinforce one another in one chamber and cancel one another in the other cha... | 08/24/2010 |
| 7708389 | Liquid ejection head A liquid jetting head using a piezoelectric element that is capable of obtaining sufficient displacement through the application of a driving voltage is provided. In the liquid jetting head, which comprises a substrate formed with a pressure chamber, a diaphragm for... | 05/04/2010 |
| 7669987 | Ink jet recording apparatus An ink jet recording apparatus includes an ink jet recording head having actuators that are caused to deflect so as to vary a volume of a pressure chamber according to a drive signal applied between an electrode associated with a pressure chamber from which ink is e... | 03/02/2010 |
| 7645030 | Ink jet head and ink jet recording apparatus An ink jet head has a plurality of individual head chips integrated to form a head chip block. Each head chip has a plurality of grooves, and the grooves of all the head chips open at one end to respective nozzle holes formed in a nozzle plate. Each head chip has an... | 01/12/2010 |
| 7520595 | Droplet ejecting head A droplet ejecting head includes a first substrate, a nozzle plate, a second substrate, an annular symmetrically channel plate and an actuator device. The nozzle plate with a nozzle is disposed on a first surface of the first substrate. The second substrate with a l... | 04/21/2009 |
| 7438394 | Inkjet head and method for making the same An inkjet head includes: an electrostrictive actuator having an ink channel to eject ink; and a manifold member for supplying the ink to the ink channel, wherein the actuator and the manifold member are jointed with an adhesive containing adhesive material and ballo... | 10/21/2008 |
| 7439659 | Piezoelectric actuator, droplet ejection apparatus, and manufacturing method thereof The piezoelectric actuator comprises: a plate-shaped piezoelectric body which has a portion polarized in a thickness direction of the piezoelectric body and a portion polarized in a direction oblique to the thickness direction; and a pair of electrodes which are dis... | 10/21/2008 |
| 7416279 | Connection structure for inkjet recording head A structure for connecting an inkjet recording head, including an actuator on which connecting terminals are disposed to apply therethrough drive voltage to respective channels formed in the head for ejecting an ink droplet onto a recording medium, to a circuit elem... | 08/26/2008 |
| 7367658 | Ink jet recording apparatus An ink jet recording apparatus comprises an ink jet recording head in which a volume of a pressure chamber is caused to vary by deflecting actuators according to drive signals applied between an electrode relative to a pressure chamber from which ink is ejected and ... | 05/06/2008 |
| 7364274 | Driving method of droplet ejection head A driving method of a droplet ejection head having plural channels separated by sidewalls formed with piezoelectric material, the channels being divided into three groups; and an electric voltage pulse is applied to each of the groups sequentially in a time-sharing ... | 04/29/2008 |
| 7356894 | Method of producing a micro-actuator In a method of producing a micro-actuator, a first adhesive is applied to a movable plate, and a movable, and a movable electrode is placed on the first adhesive. A second adhesive is applied to the movable electrode, and a piezoelectric element is placed on the sec... | 04/15/2008 |
| 7357491 | Liquid ejection head and method of manufacturing liquid ejection head The liquid ejection head comprises: a plurality of pressure chambers which contain liquid and are arranged in a two-dimensional matrix configuration; a plurality of nozzles which connect to the pressure chambers and eject the liquid; a diaphragm which forms one face... | 04/15/2008 |
| 7344216 | Print method and printer suitable for the application of the method A printing method for forming an image on a substrate by means of a printer containing a plurality of ink-filled chambers, which chambers each include a nozzle and which are operatively connected to a piezoelectric actuator, which includes the steps of image-wise en... | 03/18/2008 |
| 7337987 | Liquid jetting device A liquid jetting apparatus (50) to jet a droplet of a charged liquid solution onto a base material, having: a nozzle (51) in which an edge portion thereof is arranged to face the base material K having a receiving surface to receive the jetted droplet,... | 03/04/2008 |
| 7325902 | Ink-jet printer head and a manufacturing method thereof An ink-jet printer head is characterized by comprising an organic film coated on the surface of the nozzle plate for discharging ink, in which solid particles having abrasion resistance are dispersed, and a water-repellent film on the surface of the organic film, in... | 02/05/2008 |
| 7316470 | Inkjet recording head An inkjet recording head for ejecting ink in ink channels by deformation of the piezoelectric element, comprising: a partition wall, formed by making grooves in an actuator substrate made of a polarized piezoelectric element, for forming longitudinal side surface of... | 01/08/2008 |
| 7314185 | Liquid jetting device A liquid jetting apparatus (20) to jet a droplet of a charged liquid solution onto a base material, having: a nozzle (21) in which an edge portion thereof is arranged to face the base material K having a receiving surface to receive the jetted droplet,... | 01/01/2008 |
| 7305764 | Method of manufacturing an ink-jet recording head An ink-jet recording head has a plate-shaped member including a first layer with a partition wall formed by a first etching process and defining a pressure chamber, an ink inlet passage and a common ink storage chamber, a second layer with a land formed by a second ... | 12/11/2007 |
| 7293854 | Ink jet head An ink jet head includes a base with front and rear ends having a plurality of channel grooves separated by channel walls each including a piezoelectric extending to the rear end, a cover that is placed on the base to be in contact therewith and opposite to the face... | 11/13/2007 |
| 7290868 | Inkjet head with formed external circuit connecting electrodes There are provided driving electrodes (25) on walls (24) separating both sides of individual ink chambers (22) formed in the form of an array of multiple grooves. External circuit connecting electrodes (11) for connecting these driving el... | 11/06/2007 |
| 7287841 | Head drive control device and inkjet recording device In an electrostatic head, each of electrostatic actuators includes a diaphragm doubling as or including a first electrode forming a wall surface of a discharge room communicating with a nozzle discharging a drop, and a second electrode opposing the first electrode. ... | 10/30/2007 |
| 7287827 | Printhead incorporating a two dimensional array of ink ejection ports A printhead is provided for an inkjet printer. The printhead includes a wafer substrate assembly defining rows of evenly spaced ink inlet channels. Rows of ink ejection nozzle arrangements extend from the wafer substrate assembly and are in fluid communication with ... | 10/30/2007 |
| 7278712 | Nozzle arrangement with an ink ejecting displaceable roof structure A nozzle arrangement is provided for an inkjet printhead. The nozzle arrangement includes a wafer substrate assembly defining an ink inlet channel and a first wall surrounding the ink inlet channel. A thermal actuator includes an anchor extending from the wafer subs... | 10/09/2007 |
| 7246892 | Ink-cartridge for inkjet printer An improved inkjet printer ink cartridge is provided having a print head unit and a housing. The print head unit has a head chip in which a nozzle hole is formed to fire ink onto paper, and a flexible circuit board for transceiving signals with a printer system. The... | 07/24/2007 |
| 7240996 | Liquid delivering apparatus A liquid delivering apparatus including a piezoelectric sheet which is opposed to liquid chambers and is polarized in a direction of thickness thereof; a restrictor sheet which is opposed to the liquid chambers, restricts a deformation of the piezoelectric sheet, an... | 07/10/2007 |
| 7240995 | Method of authenticating a consumable A method of authenticating a consumable used in an imaging device includes the steps of providing the consumable with a memory; monitoring usage of the consumable; determining whether the consumable has reached a usage threshold; and, if the consumable has reached t... | 07/10/2007 |
| 7232207 | Ink jet head An ink jet head having a head chip with drive walls made of piezoelectric elements and channel portions alternately arranged in parallel; a top-side and a bottom-side base plates each formed to be longer than the channel portions and fixed on an upper and lower surf... | 06/19/2007 |
| 7225540 | Method for manufacturing an ink jet head The step of forming an electrode for external connection applies a conductive resin (10) to one end portion of each of a plurality of ink chambers (26) within each of the ink chambers (26) and to the top surface of each of a plurality of protrus... | 06/05/2007 |
| 7221075 | Piezoelectric/electrostrictive device A piezoelectric/electrostrictive device includes: a ceramic substrate having a thick portion and a thin diaphragm portion; and a piezoelectric/electrostrictive element having a layered structure including a lower electrode, a piezoelectric/electrostrictive film, and... | 05/22/2007 |
| 7216957 | Micro-electromechanical ink ejection mechanism that incorporates lever actuation A micro-electromechanical ink ejection mechanism for a printer includes a substrate that defines an ink inlet. A drive circuitry layer is positioned on the substrate. An elongate thermal bend actuator is connected at a fixed end to the drive circuitry layer and is c... | 05/15/2007 |
| 7207654 | Ink jet with narrow chamber A nozzle arrangement with an actuator disposed in an ink chamber. An ink inlet supplies ink, and an ink ejection port allows ink to be ejected selectively. The ink inlet is located to refill the ink chamber at a position that is radially displaced from the axis of t... | 04/24/2007 |
| 7196455 | Cell driving type piezoelectric/electrostrictive actuator and method of manufacturing the same A cell driving type piezoelectric/electrostrictive actuator comprises: one or a plurality of cells defined by a wall portion including side walls, a ceiling wall and a bottom wall: side walls, the ceiling wall and the bottom wall being connected to form a space as c... | 03/27/2007 |
| 7178906 | Droplet deposition apparatus An injet printhead is formed by a multistage process: grooves are formed on the base of a block of piezoelectronic material, and a conductor is applied thereto. Conducting tracks are deposited on a substrate with matching spacing, such that the base and piezoelectri... | 02/20/2007 |
| 7178903 | Ink jet nozzle to eject ink The present invention relates to an ink jet nozzle to eject ink. The nozzle comprises a body defining a chamber in which the ink to be ejected can be located and an aperture through which the ink is ejected in use. The nozzle further comprises an actuator member hav... | 02/20/2007 |
| 7175245 | Ink-jet head and ink-jet type recording apparatus An ink-jet head has deformable ink chambers formed in a piezoelectric ceramic plate and communicating with nozzle openings for ejecting ink from the chambers in response to voltage drive waveforms applied to electrodes on side walls of the chambers. A drive waveform... | 02/13/2007 |
