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US20110128327 PIEZOELECTRIC CERAMIC, METHOD FOR MAKING THE SAME, PIEZOELECTRIC ELEMENT, LIQUID DISCHARGE HEAD, AND ULTRASONIC MOTOR  
A piezoelectric ceramic that includes barium titanate and 0.04 mass % or more and 0.20 mass % or less manganese relative to barium titanate. The piezoelectric ceramic is composed of crystal...
US20140146111 LIQUID EJECTION HEAD  
A liquid ejection head, comprises a pressure generation chamber communicating with a nozzle opening and a piezoelectric element having a piezoelectric layer and an electrodes. The piezoelectric...
US20110221831 LIQUID EJECTION HEAD  
A liquid ejection head, comprises a pressure generation chamber communicating with a nozzle opening and a piezoelectric element having a piezoelectric layer and an electrodes. The piezoelectric...
US20120086757 PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS  
A piezoelectric element comprises a piezoelectric member made of a complex oxide and an electrode which contains platinum. The complex oxide contains potassium sodium niobate and bismuth ferrate....
US20140092175 REDUCED MECHANICAL COUPLING WITH STRUCTURED FLEX CIRCUITS  
An actuator assembly including a flexible printed circuit and a method for making such an actuator assembly are provided. The flexible printed circuit includes a body having a top side and a...
US20120062657 PIEZOELECTRIC INKJET HEAD STRUCTURE  
A piezoelectric inkjet head structure includes an upper cover plate, a lower cover plate, a piezoelectric actuating module, a nozzle plate and a seal layer. The piezoelectric actuating module...
US20080089832 PIEZOELECTRIC BODY AND LIQUID DISCHARGE HEAD  
The present invention provides a piezoelectric element and having a piezoelectric body and a pair of electrodes being contact with the piezoelectric body, wherein the piezoelectric body consists...
US20140092176 LIQUID EJECTION HEAD, LIQUID EJECTION DEVICE  
A liquid ejection head including a piezoelectric element having a piezoelectric layer and electrodes The piezoelectric layer is 3 μm or less in thickness. The piezoelectric layer is made of a...
US20120098896 DROPLET EJECTION HEAD AND METHOD OF MANUFACTURING DROPLET EJECTION HEAD  
A droplet ejection head includes: a nozzle plate which has a nozzle aperture for ejecting droplets of liquid; a flow channel structure including a pressure chamber which contains the liquid and is...
US20130242003 LIQUID EJECTION HEAD AND METHOD OF MANUFACTURING LIQUID EJECTION HEAD  
A liquid ejection head includes a plurality of ejection orifices which eject a liquid, a plurality of pressure chambers which store the liquid ejected from the ejection orifices and eject the...
US20080043061 Methods for reducing the non-linear behavior of actuators used for synthetic jets  
A synthetic jet ejector (101) is provided herein which comprises a diaphragm (119), a first voice coil (121) disposed on a first side of said diaphragm, and a second voice coil (123) disposed on a...
US20090225112 Generation of Drops for Inkjet Printing  
The generator according to the invention operates by strong stimulation in the form of pulses (τ) so as to generate drops, particularly for ink jet printing purposes. This choice enables breaking...
US20110267405 PIEZOELECTRIC ELEMENT, LIQUID EJECTION HEAD, AND LIQUID EJECTING APPARATUS  
A piezoelectric element, comprising electrodes and a piezoelectric body formed between the electrodes. The piezoelectric body consists of a perovskite oxide including bismuth, lantern, iron and...
US20110242225 PIEZOELECTRIC ACTUATOR UNIT AND METHOD FOR TESTING PIEZOELECTRIC ACTUATOR UNIT  
A piezoelectric actuator unit includes: a wiring board; a piezoelectric actuator which is provided with a piezoelectric layer, a plurality of individual electrodes provided to the piezoelectric...
US20150171311 PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, AND ELECTRONIC APPARATUS  
A piezoelectric material contains a main component containing a perovskite-type metal oxide represented by general formula (1), a first sub-component containing Mn, and a second sub-component...
US20130050350 PIEZOELECTRIC DEVICE, INKJET PRINT HEAD AND METHOD OF MANUFACTURING THE SAME  
There are provided a piezoelectric device, an inkjet print head, and a method of manufacturing the same. The piezoelectric device includes piezoelectric ceramic powder containing 90 parts by...
US20150028249 PIEZOELECTRIC CERAMICS, PIEZOELECTRIC ELEMENT, LIQUID EJECTION HEAD, ULTRASONIC MOTOR, AND DUST REMOVING DEVICE  
Provided is a lead-free piezoelectric ceramics having enhanced mechanical quality factor (Qm) and mechanical strength. The piezoelectric ceramics, includes at least a first crystal grain and a...
US20130222453 DROP GENERATOR AND POLING WAVEFORM APPLIED THERETO  
A drop emitting apparatus may include a drop generator having a piezoelectric element and configured to receive a drop firing waveform having a drop firing voltage pulse during a drop ejection...
US20150255703 CERAMIC POWDER, PIEZOELECTRIC CERAMIC, PIEZOELECTRIC ELEMENT, AND ELECTRONIC EQUIPMENT  
A ceramic powder contains a metal oxide represented by the following general formula (1). The ceramic powder has a single perovskite-type crystal phase. The ceramic powder is composed of particles...
US20150035909 BIAS CURRENT CONTROL FOR PRINT NOZZLE AMPLIFIER  
An apparatus includes an amplifier that drives a piezo print nozzle. A bias adjuster varies bias current in the amplifier as an input signal slew rate varies to the amplifier.
US20090085982 Inkjet head and manufacturing method thereof  
An inkjet head and a manufacturing method thereof are disclosed. A method of manufacturing an inkjet head, which is configured to eject ink through a nozzle using pressure provided to a pressure...
US20140225962 POLING METHOD, POLING DEVICE FOR PIEZOELECTRIC ELEMENT AND INKJET PRINT HEAD  
There is provided a poling method for a piezoelectric element, including performing preliminary poling of the piezoelectric element twice or more with different voltages and measuring conductance...
US20110292134 PEROVSKITE OXIDE, OXIDE COMPOSITION, OXIDE BODY, PIEZOELECTRIC DEVICE, AND LIQUID DISCHARGE APPARATUS  
A perovskite oxide, which includes a first component represented by General Formula (P1) given below and a second component represented by General Formula (P2) given below. (Bix1, Xx2) (Fez1,...
US20110050808 PIEZOELECTRIC PRINTHEAD AND RELATED METHODS  
A piezoelectric printhead and related methods provide a first metallic electrode and a second metallic electrode deposited over a top surface and a bottom surface, respectively, of a piezoceramic...
US20150077475 ELECTROMECHANICAL TRANSDUCER ELEMENT, METHOD OF MANUFACTURING THE SAME, LIQUID DROPLET DISCHARGE HEAD, AND LIQUID DROPLET DISCHARGE DEVICE  
An electromechanical transducer element includes a substrate; a first electrode formed on the substrate as a common electrode; an electromechanical transducer membrane formed on the first...
US20070040870 NOZZLE PLATE  
A nozzle plate suited for a droplet generator is provided. The nozzle plate includes a nozzle layer and at least one filler. The nozzle layer has a nozzle and at least one trench. The nozzle...
US20120274686 PRINTHEAD  
A print head comprising a nozzle plate having a plurality of nozzles extending therethrough, a piezoelectric bending mode actuator associated with each nozzle and connected with the respective...
US20070040869 Print head for large scale printing apparatus  
An injection molded print head for an assembly of print heads for large scale printing of, e.g., billboards, banners, posters and the like, includes a nozzle plate that is bonded to a manifold...
US20100134568 MEMS Device with Uniform Membrane  
A MEMS based device is described with recesses covered by a membrane. The membranes over the recesses are highly uniform due to being formed by a stack of layers that are epitaxial layers with...
US20130021412 DROPLET EJECTION HEAD, METHOD OF MANUFACTURING DROPLET EJECTION HEAD, AND DROPLET EJECTION APPARATUS  
A droplet ejection head that is attachable to and removable from a droplet ejection apparatus, includes: a nozzle plate having multiple nozzle holes to eject droplets; an individual-channel...
US20130076838 INKJET HEAD  
According to one embodiment, an inkjet head includes a mask part which covers a periphery of an actuator part in a state where a nozzle hole is exposed to outside and a peripheral edge part of...
US20140285581 DROPLET DEPOSITION APPARATUS  
Droplet deposition apparatus including at least one droplet ejection unit having a plurality of fluid channels disposed side by side in a row, an actuator, and a plurality of nozzles, said...
US20080036799 Processes for printing arrays of substantially parallel lines  
The present invention is directed to a process for combining spin printing and ink jet printing to print a plurality of largely parallel conductors, insulators, dielectrics, phosphors, emitters,...
US20110292133 PEROVSKITE OXIDE, OXIDE COMPOSITION, OXIDE BODY, PIEZOELECTRIC DEVICE, AND LIQUID DISCHARGE APPARATUS  
Disclosed is a non-lead perovskite oxide having a low Curie temperature and high ferroelectricity represented by General Formula (P) given below. (Bix1, Bax2, Xx3)(Fey1, Tiy2, Mny3)O3 (P) (where,...
US20090079799 JETTING ERROR DETECTOR, DROPLET JETTING APPLICATOR AND DISPLAY DEVICE MANUFACTURING METHOD  
A jetting error detector includes multiple input circuits configured to receive respective voltage values of multiple piezoelectric elements from a droplet jetting head configured to jet droplets...
US20110221827 LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS  
There is provided a liquid ejecting head comprising a pressure generating chamber and a piezoelectric actuator having a piezoelectric material consisting of composite oxide. The composite oxide...
US20060284936 Drop Generator  
A drop generator that includes an inlet, a pressure chamber and an outlet channel that includes circular outlet channel sections and a non-circular outlet channel section.
US20110122179 OVERCURRENT DETECTION FOR DROPLET EJECTORS  
An apparatus, method, and a fluid ejection system for detecting electrical shorts in piezoelectric printheads are described. An apparatus includes a piezoelectric actuator, a transistor whose...
US20110228011 Restriction Of Fluid Ejector Membrane  
A fluid ejection module includes a die having a plurality of substantially identical fluid ejector units formed therein. Each fluid ejector unit includes a flow path formed therethrough, the flow...
US20140295064 PRINTHEAD WITH NANOTIPS FOR NANOSCALE PRINTING AND MANUFACTURING  
A nanoprinthead including an array of nanotip cantilevers, where each nanotip cantilever includes a nanotip at an end of a cantilever, and a method for forming the nanoprinthead. Each nanotip may...
US20110205308 LIQUID EJECTION HEAD WIRING MEMBER AND LIQUID EJECTION HEAD  
The first and second cables overlap with each other while at an attitude where the wiring terminal formation surfaces face the same side, and the one-end-side common wiring terminal is located on...
US20080074471 Perovskite oxide, process for producing the perovskite oxide, piezoelectric body, piezoelectric device, and liquid discharge device  
A process for producing a piezoelectric oxide having a composition (A, B, C) (D, E, F)O3, where each of A, B, C, D, E, and F represents one or more metal elements. The composition is determined so...
US20110216130 PIEZOELECTRIC ELEMENT, LIQUID EJECTION HEAD, AND LIQUID EJECTION DEVICE  
A piezoelectric element having a piezoelectric layer and electrodes. The piezoelectric layer is 3 μM or less in thickness. The piezoelectric layer is made of a piezoelectric material containing a...
US20100302322 MICROMACHINED FLUID EJECTOR  
This invention relates to micromachined fluid ejector arrays having a fluid reservoir bounded at one side by an elastic membrane having scalable arrays of orifices arranged between concentric...
US20070159507 Piezoelectric actuator drive control method, piezoelectric actuator drive control apparatus, and electronic device  
A piezoelectric actuator drive control method, piezoelectric actuator drive control device, and electronic device greatly reduce power consumption. The piezoelectric actuator drive control device...
US20140333701 Method for Manufacturing Piezoelectric Actuator  
A method for manufacturing a piezoelectric actuator is disclosed that includes forming a vibration plate, forming a plurality of electrodes on the vibration plate, forming a piezoelectric layer on...
US20080246821 Ink Jet Write Head  
The invention relates to an ink jet write head which comprises a pressurized ink compartment (2), at least one ink nozzle (5), obturated by a movable valve body (6), and a piezoelectric valve...
US20110025779 PRINTHEAD INCLUDING DUAL NOZZLE STRUCTURE  
A printhead includes a first nozzle bore, a liquid chamber, and a second nozzle bore. The liquid chamber is positioned between the first nozzle bore and the second nozzle bore and extends beyond...
US20110205307 SOL-GEL LIQUID, ELECTROMECHANICAL CONVERSION ELEMENT, LIQUID DISCHARGE HEAD AND INKJET RECORDER  
A sol-gel liquid for use in forming an individualized electromechanical conversion film of an electromechanical conversion element by inkjet methods, including a lead zirconate titanate (PZT) or...
US20130278681 PIEZOELECTRIC CERAMIC, PIEZOELECTRIC ELEMENT, ULTRASONIC MOTOR, AND DUST REMOVING DEVICE  
There is provided a lead-free piezoelectric ceramic having a high and stable piezoelectric constant and a high and stable mechanical quality factor in a wide operating temperature range. A method...