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7517063 Piezoelectric element  
A piezoelectric element including an upper electrode, a piezoelectric and/or electrostrictive material and a lower electrode, characterized in that the piezoelectric and/or electrostrictive...
7517062 Liquid discharge device  
The present invention is directed at a liquid discharge device having reduced crosstalk, which slows the rate of change of liquid discharge speed, and is suitable as a printing head. The liquid...
7517061 Multi-nozzle ink jet head and manufacturing method thereof  
A multi-nozzle ink jet head using piezoelectric elements and a manufacturing method thereof are disclosed. A head ( 1 ) has a nozzle member ( 10 ) in which a plurality of nozzles ( 12 ) are formed,...
7513609 Ink-jet printer head including measurement electrode for measuring capacitance with common electrode  
A measurement electrode for capacitance measurement is disposed so as to be opposed to a common electrode with a second and a third piezoelectric plates in between and to be opposed to all ink...
7513586 Waveform signal driven liquid ejection apparatus and image forming apparatus  
The liquid ejection apparatus comprises: a nozzle which ejects liquid; a pressure chamber which is connected to the nozzle and filled with the liquid to be ejected from the nozzle; an actuator...
7513608 Dielectric film structure, piezoelectric actuator using dielectric element film structure and ink jet head  
The present invention provides a dielectric film structure having a substrate and a dielectric film provided on the substrate and in which the dielectric film has (001) face orientation with...
7510271 Liquid ejection head  
A liquid ejection head including: a head main body including: a cavity unit including a passage forming base plate forming a liquid passage from a common liquid chamber to a nozzle opening via a...
7506967 Ink jet head having an electrostatic actuator, ink cartridge, and inkjet printer  
An inkjet head having an electrostatic actuator and a manufacturing method of the same are disclosed. The inkjet head having an electrostatic actuator, comprising a stator, on which is formed a...
7503642 Inkjet head and method for manufacturing the same  
An inkjet head includes a channel unit and actuator units. Inside the channel unit, individual ink channels are formed so that ink supplied from ink inlets is ejected from nozzles via pressure...
7503644 Liquid ejection head, liquid ejection apparatus and image forming apparatus  
The liquid ejection head comprises: a plurality of ejection ports through which liquid is ejected; a plurality of pressure chambers which are connected respectively to the ejection ports; a common...
7503643 Liquid droplet discharge head and image forming apparatus  
A liquid droplet discharge head having a first pressure chamber filled with a fluid; an actuator is displaced on at least one portion of a surface defining a first pressure chamber; a nozzle for...
7503640 Ink-jet head and ink-jet printer  
An ink-jet head includes a nozzle row which jets a black ink, and nozzle rows which jet color inks, and a nozzle row which jets a special color ink. These nozzle rows are arranged in a scanning...
7500734 Inkjet recording head and inkjet recording device  
In a recording head which discharges ink, which is supplied from an ink flow path to pressure chambers, from nozzles by operation of actuators, one actuator is provided for each pressure chamber....
7500735 Liquid droplet ejecting apparatus and liquid droplet ejecting method  
An apparatus for ejecting liquid droplets, including: ejecting head main body having a plurality of nozzle rows; a pressure generation chamber; a pressurization section for giving pressure to the...
7497554 Ink jet print head  
An inkjet print head wherein the surface (front surface) for ejecting ink droplets coming from an ink channel partitioned by a drive wall composed of a piezoelectric device is arranged opposite to...
7497557 Liquid ejecting apparatus, method for manufacturing liquid ejecting apparatus, and ink-jet printer  
An ink-jet head includes a common liquid chamber, a plurality of pressure chambers, a plurality of nozzles which eject ink, a plurality of individual ink channels communicating with the common...
7494594 Method of manufacturing an electrostatic actuator  
An electrostatic actuator for increasing a swing (deflection angle) of a movable structure includes a laminate substrate in which a thin film silicon layer is formed on a silicon substrate through...
7494209 Printhead module  
A printhead module includes a printhead body, a nozzle plate and one or more piezoelectric actuators. The printhead body includes one or more pumping chambers, where each pumping chamber includes a...
7495373 Liquid transporting apparatus and method of producing liquid transporting apparatus  
A piezoelectric actuator for a liquid transporting apparatus includes a drive plate having a base portion which is arranged, on an upper surface of a vibration plate covering a pressure chamber;...
7494208 Inkjet printhead having a cantilever actuator  
An inkjet printhead having a cantilever actuator, the inkjet printhead including a plurality of ink chambers containing ink to be ejected; a manifold containing ink to be supplied to the plurality...
7490405 Method for manufacturing a liquid droplet discharge head.  
The liquid droplet discharge head comprises: a piezoelectric actuator shaped in a cylinder having a hollow part; a pressure chamber shaped in a cylinder formed in the hollow part of the...
7488057 Piezoelectric ink jet printer head and its manufacturing process  
Disclosed is a piezoelectric ink jet printer head in which a chamber and an ink storage are integrally formed. A process for manufacturing the ink jet printer head is also disclosed. The ink jet...
7484833 Droplet ejector and ink-jet printhead using the same  
In a droplet ejector and an ink-jet printhead using the same, the droplet ejector includes a fluid path through which a fluid moves, a nozzle being formed on one end of the fluid path, a volumetric...
7482733 Piezoactuator  
The invention relates to a piezoactuator for miniaturized pumps, atomizers, valves or the like. The piezoactuator comprises a piezoceramic disk ( 1 ) and a pressure disk ( 2 ) coupled to the...
7478558 Piezoelectric element, ink jet head, angular velocity sensor, method for manufacturing the same, and ink jet recording apparatus  
In a piezoelectric element, an adhesive layer 12 is provided on a substrate 11 , a first electrode layer 14 made of a noble metal containing titanium or titanium oxide is provided on the...
7479729 Piezoelectric actuator, ink-jet head provided with the same, ink-jet printer, and method for manufacturing piezoelectric actuator  
A piezoelectric actuator 3 includes a metallic vibration plate 30 , an insulating layer 31 , a plurality of individual electrodes 32 , a piezoelectric layer 33 and a common electrode 34 ....
7478898 Recording head for inkjet recording device  
An ink jet recording head unit includes a plurality of nozzle elements, a plurality of piezoelectric elements and a driving unit. The plurality of piezoelectric elements is provided in one-to-one...
7479728 Piezoelectric element, method of manufacturing the same, liquid-jet head, method of manufacturing the same, and liquid-jet apparatus  
The present invention is to provide a piezoelectric element, a method of manufacturing the same, a liquid-jet head, a method of manufacturing the same, and a liquid-jet apparatus, all of which...
7478899 Piezoelectric ink jet module with seal  
A piezoelectric ink jet head that includes a polymer film, for example a flex print, located between the piezoelectric element and the reservoirs in the jet body. The film provides an efficient...
7475969 Ink-jet printing head  
An ink-jet printing head including a piezoelectric actuator and a cavity plate, the piezoelectric actuator includes a plurality of piezoelectric sheets and a plurality of electrodes each of which...
7475970 Piezoelectric actuator having piezoelectric layer and vibration plate with groove and liquid transporting apparatus  
A piezoelectric actuator is described as including a vibration plate in which grooves associated with respective pressure chambers are formed on a surface of the vibration plate, and a...
7475967 Piezoelectric element, ink-jet head with same, and their manufacturing methods  
A piezoelectric element 1 includes a lower electrode 2 , a piezoelectric film 3 and an upper electrode 4 stacked in this order. The surface of the upper electrode 4 of the piezoelectric...
7475960 Liquid ejection apparatus and ejection abnormality determination method  
The liquid ejection apparatus includes: ejection head which includes: a nozzle through which a droplet of liquid is ejected onto an ejection receiving medium; a pressure chamber which accommodates...
7475968 Ink-jet head  
An ink-jet head in which an ink emitting surface (front surface) for emitting ink from ink channels partitioned by piezo-electric driving walls is opposite to an ink supplying surface (rear...
7472480 Method for producing liquid ejecting recording head  
Disclosed is a liquid ejecting recording head with improved operational reliability. A first coating resin layer of a liquid ejecting recording head, having a liquid flow duct and a liquid ejecting...
7471028 Liquid ejection head and image forming apparatus  
The liquid ejection head has: a surface acoustic wave propagation body in which a surface acoustic wave propagates; a nozzle orifice formed in the surface acoustic wave propagation body; a surface...
7469993 Inkjet recording head  
An inkjet recording head includes: nozzles that jet ink droplets; pressure chambers that communicate with the nozzles and contain ink; a diaphragm that configures part of the pressure chambers; an...
7467857 Micromachined fluid ejectors using piezoelectric actuation  
A micromachined fluid ejector includes an ejector body having a fluid cavity for holding fluid to be ejected and a piezoelectric actuator for ejecting the fluid. A nozzle plate is placed in...
7465039 Liquid ejection head and image forming apparatus  
The liquid ejection head comprises: a plurality of ejection ports which eject liquid; a plurality of pressure chambers which are communicated with the ejection ports; a plurality of piezoelectric...
7465038 Liquid transporting apparatus and method of manufacturing liquid transporting apparatus  
In a liquid transporting apparatus, when a thickness of a vibration plate is Tv (mm), a coefficient of elasticity of the vibration plate is Ev (kg/mm 2 ), a thickness Tp of a piezoelectric layer is...
7461909 Mounting structure of liquid sensor and liquid container  
A mounting structure of a liquid sensor comprising: a vibration cavity forming base portion which has a first surface and a second surface opposed to each other and in which a cavity for receiving...
7461926 Liquid delivering apparatus and method of producing the same  
A liquid delivering apparatus, including a flow-passage unit including an opening and a pressure chamber which accommodates liquid and which communicates with the opening; an oscillating plate...
7461913 Liquid droplet ejection apparatus  
The liquid droplet ejection apparatus comprises: a liquid droplet ejection head which includes a plurality of pressure chambers communicating with a plurality of nozzles through which droplets of...
7452049 Inkjet recording apparatus  
An ink non-ejection detecting circuit device for an inkjet recording apparatus is disclosed which comprises a bridge circuit including a piezoelectric head having a piezoelectric element, a first...
7452059 Liquid ejection apparatus  
The liquid ejection apparatus comprises: a nozzle through which liquid is ejected; a pressure chamber which accommodates the liquid to be ejected from the nozzle; a supply side flow path which...
7448727 Ink jet recording head and ink jet recording apparatus  
The invention provides an ink jet recording head in which an element substrate provided in a head unit and constituted of plural drive elements is driven to discharge ink droplets from plural...
7448732 Liquid ejection head and manufacturing method thereof  
The liquid ejection head includes: a plurality of ejection ports which eject liquid; a plurality of pressure chambers which respectively communicate with the ejection ports; a plurality of...
7445307 Droplet jetting apparatus and display device manufacturing method  
A droplet jetting apparatus includes an actuator becoming deformed by a voltage application; an elastic body adhered to the actuator and becoming deformed in response to a deformation of the...
7441874 Insulated heat unit for ink jet printer, an ink jet printer including an insulated head unit and signal transmission board used for the ink jet printer  
A head unit has a head main body for discharging ink, a driver IC and an FPC, which is interposed between the driver IC and the head main body. The FPC has through holes each of which is embedded...
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...