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6554405 |
Liquid-drop discharge device having controlled pressure differential between liquid storage tank and reaction cell
A liquid-drop discharge device includes an array of liquid-drop discharge units for discharging liquid from a float cell in communication with a liquid storage tank. A reaction cell, into which...
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6554406 |
Inkjet recording head and method of producing the same
To suppress adhesive extrusion in an ink flow path and irregularities or air bubbles (void) in the adhesive layer, thus enabling to improve reliability and yield as well as reduce the production...
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6550897 |
Inkjet recording head and recording apparatus using the same
An inkjet recording head allowing a high driving efficiency and preventing a variation in the driving efficiency is disclosed. An piezoelectric actuator is provided for each ink nozzle and has a...
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6547373 |
Ink jet type recording head
A nozzle plate ( 8 ) having a nozzle opening ( 10 ) formed thereon, a passage forming substrate ( 70 ) having a pressure chamber ( 12 ), an ink supply port ( 13 ) and a common ink chamber ( 11 )...
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6547374 |
Ink jet printer head and method for manufacturing the same
The present invention provides an ink jet printer head having a pressure chamber to jet ink by deformation of a piezoelectric member provided in the pressure chamber. The piezoelectric member has...
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6540313 |
Ink-jet recording apparatus and method of manufacturing the same
A flexible flat cable having a driver integrated circuit (IC) thereon is soldered to a piezoelectric actuator of an ink-jet head. A power source equivalent to a power source that generates a...
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6540338 |
Method of driving ink jet recording head and ink jet recording apparatus incorporating the same
A recording head is provided with a pressure chamber communicated with a nozzle orifice. A pressure generating element generates pressure fluctuation in ink contained in the pressure chamber. A...
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6533402 |
Ink-jet recording head, method of manufacturing the same, and ink-jet recording apparatus
Disclosed are an ink-jet recording head, a method of manufacturing the ink-jet recording head, and an ink-jet recording apparatus, which prevents operational malfunctions owing to external...
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6523942 |
Inkjet head having plural ink supply channels between ink chambers and each pressure chamber
It is an object of the present invention to provide an inkjet head and its manufacturing method, which may realize a high resolution while maintaining at a desired strength those walls which define...
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6517195 |
Ink jet head with an integrated charging control circuit
In an ink jet head for performing charging and discharging between diaphragms and electrodes to transform the diaphragms to thereby eject ink drops from nozzle holes, a control circuit ( 60 ) of...
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6513916 |
Ink jet head and manufacturing method thereof
An ink jet head which has been improved to enable reliable connection of an electrode to an external portion without increasing manufacturing cost is provided. The ink jet head includes a base...
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6513915 |
Variable dot ink-jet printer
A variable dot ink-jet printer having an ejection flow passage with a decrease in sectional area from an ejection port toward the interior of the flow passage and up to a boundary. A draw-in part...
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6511161 |
Piezoelectric thin film component, inkjet type recording head and inkjet printer using this &lsqb piezoelectric thin film component&rsqb , and method of manufacturing piezoelectric thin film component
Providing a mechanism which can eliminate an influence of residual strain in a piezoelectric thin film, having excellent piezoelectric strain characteristics. No or few foreign substances exist or...
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6508528 |
Ink jet printer, control method for the same, and data storage medium for recording the control method
A control method for an ink jet printer capable of a non-discharge nozzle driving operation for stimulating and vibrating an ink meniscus in each ink nozzle of the ink jet head to prevent nozzle...
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6505916 |
Nozzle poker for moving nozzle ink jet
An ink jet printhead has a number of nozzles each ejecting drops of ink toward a surface. Each nozzle has a nozzle chamber at least partially defined by an apertured roof portion operatively...
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6505917 |
Electrode patterns for piezo-electric ink jet printer
A piezo-electric printhead is formed from a first piezo-electric actuator disposed parallel to a second piezo-electric actuator. The first and second piezo-electric actuators have a shared inner...
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6505920 |
Synchronously stimulated continuous ink jet head
An ink jet print head for a continuous ink jet printer includes an orifice plate defining an elongated array of ink jet orifices, an ink manifold for supplying ink to the orifices in the orifice...
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6502928 |
Ink jet recording head and ink jet recording apparatus comprising the same
An ink jet recording head includes pressure generating chambers communicating with associated nozzle orifices and piezoelectric elements provided in a one-to-one correspondence with the pressure...
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6499837 |
Piezoelectric element and manufacturing method and manufacturing device thereof
By setting the thickness of the Ti core between 4˜6 nm and adjusting the thickness ratio of the Pt layer in relation to the thickness of the entire lower electrode, the (100) face orientation...
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6500354 |
Inkjet printer head actuator and method for manufacturing the same
An inkjet printer head actuator including a vibrating plate having a flat plate shape, a chamber plate coupled to the vibrating plate, the chamber plate having chamber walls defining a plurality of...
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6497019 |
Manufacturing method of ink jet printer head
A method for manufacturing an ink jet printer head is disclosed which the method comprises steps of providing a substrate; forming a crater layer by photolighography and plating under the...
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6497476 |
Liquid injection device, manufacturing method therefor, liquid injection method and manufacturing method for piezo-electric actuator
A liquid injection device has a liquid pressurizing chamber having one or a plurality of apertures, a liquid injection port provided at a part of the liquid pressurizing chamber, a liquid...
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6491383 |
Head chip and head unit
A head chip and a head unit, in which manufacturing cost is reduced and also manufacturing steps are simplified, are provided. In a head chip 10 in which: partition walls 12 made of...
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6488355 |
Ink jet head
In an ink jet head, in order to make the occupying area of a chamber associated to each nozzle as small as possible, while maintaining a discharge ink drop volume, and on the other hand, to locate...
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6485133 |
Actuator device and ink jet recording apparatus
A drive signal for driving a ink jet recording head as an actuator device indudes an expansion potential for deforming the piezoelectric actuator so as to expand the pressure generating chamber, a...
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6481833 |
Inkjet printer
Undesirable deflection of partitioning walls between ink pressure chambers is prevented during ink discharge operations even when the partitioning walls are made very thin to achieve a high density...
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6481073 |
Method for manufacturing ink jet print head
In the manufacture of an ink jet print head which ejects ink from ink jet grooves through nozzles by applying voltage to walls of the ink jet grooves that are formed of a piezoelectric material so...
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6481074 |
Method of producing an ink jet print head
A method for producing an apparatus for ejecting liquid droplets includes the steps of providing a porous medium having a plurality of pores therein, forming a plurality of holes through the porous...
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6481834 |
Ink-jet recording head
A passage forming plate ( 1 ) is provided with a plurality of pressure chambers ( 5 ). A nozzle plate ( 2 ) is provided with nozzle holes ( 6 ). The nozzle plate ( 2 ) is disposed on the front...
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6477029 |
Deformable micro-actuator
A micro-actuator has a pair of conductive metallic layers connectable to an electrical potential source so as to induce a force between the metallic layers upon application of an electrical field....
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6471341 |
Ink jet head allowing highly dense arrangement of nozzles
An ink jet head includes an ink supply path, a pressure chamber, an orifice and an oscillator. By bending a portion of the wall surface of the pressure chamber by oscillation of oscillator, ink is...
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6467886 |
Ink-jet head, method for fabricating same, and ink-jet recording device
An ink jet head H is downsized by making piezoelectric elements 23, top electrodes 24 provided on surfaces of the piezoelectric elements 23 that are opposite to pressure rooms 3, and bottom...
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6467885 |
Ink jet record head
An ink jet record head which has rows of pressure generation chambers ( 1 ) having nozzle openings ( 5 ), common ink reservoirs ( 2 ) placed along the row direction of the pressure generation...
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6467887 |
Piezoelectric ink jet printing system
A piezoelectric ink jet printing system including a primary ink supply and a plurality of piezoelectric ink jet printhead assemblies. Each assembly comprises a housing, a piezoelectric ink jet...
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6460979 |
Piezo bending transducer drop-on demand print head and method of actuating it
Disclosed is a piezo bending transducer drop-on-demand print head and a method of actuating it. Each of the piezo bending transducers of a piezo bending transducer drop-on-demand print head is...
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6460980 |
Liquid dispensing apparatus
There is disclosed a device for dispensing liquids, in particular dyes or inks. The device comprises a liquid tank, a dispensing nozzle, and a liquid conduit with an end connected to the liquid...
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6457222 |
Method of manufacturing ink jet print head
During a method for manufacturing an ink-jet print head, piezoelectric element bars are fixed to a base plate. Then, two corners of the piezoelectric element bars are cut. The bare are then diced...
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6454377 |
Driving circuit for ink jet printing head
A driving circuit for ink jet head easily configured with inexpensive elements and which, without malfunctioning, generates desired driving waveform signals to drive piezoelectric actuators with a...
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6450626 |
Ink jet head, method for producing the same, and ink jet type recording apparatus
In order to maximally improve the deformation characteristic of a piezoelectric actuator of an ink jet head so as to improve the printed image quality, the present invention newly provides...
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6450623 |
Inkjet head which arranges protective layer at surface to which nozzle plate is connected and method for manufacturing the inkjet head
The present invention has an object to provide an inkjet head and a method for manufacturing the inkjet head which not only protects a member at and/or near a surface onto which the nozzle plate is...
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6443566 |
Ink-jet head and method of manufacturing the same
The method of manufacturing an ink-jet head of this invention includes the steps of forming plural individual electrodes and plural piezoelectric devices stacked in this order on a supporting...
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6440174 |
Piezo-electric/electrostrictive film type chip
A piezo-electric/electrostrictive film type chip ( 50 ) includes: a ceramic substrate ( 70 ) having a spacer plate ( 74 ) having a windows-disposed pattern ( 100 ) having a plurality of window...
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6435671 |
Actuator for inkjet print head
Disclosed herein is an actuator for an inkjet print head. The actuator includes a vibrating plate having a thin film structure and flexurally deformable in its thickness direction; a first etch...
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6431690 |
Ink jet head and producing process therefor
In an ink jet head according to the invention, an electrode provided on an actuator board has two-layer structure. A first layer is made of a noble metal such as palladium containing phosphorus or...
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6431691 |
Piezoelectric actuator
Of the first sheet formed of piezoelectric materials and the second sheet formed of prescribed materials, the upper electrode layer formed of conduction materials is formed on one surface of the...
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6431675 |
Method of driving an ink jet printhead
Disclosed is a method of driving an ink jet printhead having flexural or longitudinal vibration mode piezoelectric elements. The method includes a contracting step for expanding the pressure...
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6422690 |
Drop on demand ink jet printing apparatus, method of ink jet printing, and method of manufacturing an ink jet printing apparatus
A droplet on demand inkjet apparatus utilizing a piezoelectric actuator arranged so as to deflect in shear mode, a method of ink jet printing, and a method of manufacturing an ink jet printing...
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6419848 |
Piezoelectric actuator, ink-jet type recording head, manufacturing method therefor, and ink-jet printer
A piezoelectric actuator, comprising a stacked structure consisting of a top electrode 5 , a piezoelectric film 4 , and a bottom electrode 3 , wherein the piezoelectric film comprises a first...
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6415507 |
Method for fabricating ink jet printer head
A plurality of ink jet printer heads can be obtained from a single substrate through the following steps: a piezoelectric body forming step of cutting a piezoelectric member into a desired width to...
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6416172 |
Ink-jet head device with a multi-stacked PZT actuator
An ink-jet head device using a stack of piezoelectric bodies, including a nozzle plate having a nozzle, a manifold portion having a restrictor plate that has a restrictor, piezoelectric bodies...
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