Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 8186812 | Piezoelectric actuator, liquid transporting apparatus, and method for manufacturing piezoelectric actuator A piezoelectric actuator includes a first piezoelectric layer, a second piezoelectric layer stacked on the first piezoelectric layer, a first electrode arranged on the first piezoelectric layer, a second electrode arranged between the first and second piezoelectric ... | 05/29/2012 |
| 8132897 | Liquid-droplet jetting apparatus and liquid-droplet jetting head A piezoelectric actuator includes first active portions corresponding to center portions in a row direction of pressure chambers and second active portions corresponding to left and right portions on outer peripheral sides which are more outside than the center port... | 03/13/2012 |
| 8113635 | Liquid discharge apparatus and check method of the same A piezoelectric actuator has a first ceramic layer covering openings of pressure chambers, a first electrode provided over the plurality of pressure chambers, a second ceramic layer, a second electrode, a third ceramic layer and a third electrode in this order from ... | 02/14/2012 |
| 8083331 | Piezoelectric actuator, liquid ejection head, and method for manufacturing piezoelectric actuator A piezoelectric actuator includes piezoelectric layers. Individual electrodes are formed on an outermost piezoelectric layer and arranged in a row extending along a first direction. Through holes are formed in the outermost piezoelectric layer and arranged substanti... | 12/27/2011 |
| 8025371 | System and method for creating liquid droplet impact forced collapse of laser nanoparticle nucleated cavities A device, method and system for causing a controlled collapse of cavities formed within liquid droplets wherein a pressurized jet comprising a liquid and nanoparticle material produces droplets from the breakup of the jet stream. The liquid droplets may be irradiate... | 09/27/2011 |
| 8002391 | Inkjet printhead having piezoelectric actuator and method of driving the piezoelectric actuator An inkjet printhead and a method of driving the inkjet printhead include a flow channel substrate having a pressure chamber, and a piezoelectric actuator formed on the flow channel substrate to apply a driving force to the pressure chamber to eject ink. The piezoele... | 08/23/2011 |
| 7997697 | Droplet discharge head, droplet discharge device, method for manufacturing droplet discharge head and method for manufacturing droplet discharge device A droplet discharge head including a nozzle substrate having nozzle openings, a cavity substrate having discharge chambers that communicate with the nozzle openings and discharge droplets from the nozzle openings, a reservoir substrate having a reservoir concave por... | 08/16/2011 |
| 7980682 | Liquid droplet discharge apparatus and liquid droplet discharge head A piezoelectric actuator includes first active portion which correspond to a central portion of each of pressure chambers and a second active portion which correspond to a portion, of each of the pressure chambers, located on outer circumferential sides with respect... | 07/19/2011 |
| 7946690 | Printhead fabricated on flexible substrate A printhead or other droplet emitter is manufactured integrally with a flexible circuit. Preferred methods of manufacturing a droplet emitter comprise the steps of: creating metal traces, preferably deposited using a metal oxide precursor; patterning a sacrificial p... | 05/24/2011 |
| 7914129 | Piezoelectric actuator and liquid-droplet jetting head A piezoelectric actuator includes a first ceramic sheet having individual inner-electrodes formed thereon, a second ceramic sheet having a common inner-electrode formed thereon, a third ceramic sheet having individual surface-electrodes formed thereon, and a fourth ... | 03/29/2011 |
| 7914130 | Droplet ejection device and printer A droplet ejection device includes: a substrate having first, second, third & fourth pressure chambers extending in a first direction; a nozzle plate below the substrate & having first, second, third & fourth nozzle apertures continuous with first, second, third & f... | 03/29/2011 |
| 7854498 | Piezoelectric actuator A piezoelectric actuator includes a vibration plate, a first piezoelectric layer formed on one surface of the vibration plate, a second piezoelectric layer stacked on a surface of the first piezoelectric layer, a plurality of individual electrodes arranged on a surf... | 12/21/2010 |
| 7850288 | Ink jet recording head having piezoelectric element and electrode patterned with same shape and without pattern shift therebetween An ink jet recording head comprising: a nozzle orifice for jetting ink; an ink chamber communicating with the nozzle; a diaphragm for pressurizing ink in the ink chamber; a piezoelectric thin film on the diaphragm; and an electrode for the piezoelectric thin film wh... | 12/14/2010 |
| 7837306 | Valve unit with pressure regulating valve assembled in laminate body A valve unit includes a valve portion arranged in a laminate body operable to open and close a flow passage; a drive portion that generates drive force for driving the valve portion; and a transmission portion arranged between the valve portion and the drive portion... | 11/23/2010 |
| 7802876 | Actuator unit and manufacturing method thereof, and liquid ejection head An actuator unit for applying pressure to liquid in each of pressure chambers formed in a passage unit includes a piezoelectric layer; a common electrode formed on one surface of the piezoelectric layer to be positioned over the pressure chambers; and electric field... | 09/28/2010 |
| 7798618 | Ink jet head An ink jet head is provided with a passage unit and an actuator unit. The passage unit includes a nozzle and a pressure chamber communicating with the nozzle. The actuator unit includes a piezoelectric layer, a first electrode connected with a front surface of the p... | 09/21/2010 |
| 7789499 | Ink jet print head and method of manufacturing ink jet print head An ink jet print head is provided which allows an ejection opening-formed surface to be cleaned well and can improve a precision with which ejected ink lands on a print medium. For this purpose, conductive layers of a conductive material are formed on the support su... | 09/07/2010 |
| 7789498 | Inkjet head An inkjet head includes a passage unit having a pressure chamber which is in communication with a nozzle and which is defined by a recessed portion provided in one surface of the passage unit; and an actuator unit including: (a) an oscillating plate fixed to the one... | 09/07/2010 |
| 7766464 | Piezoelectric element, piezoelectric actuator, ink jet recording head, ink jet printer, surface acoustic wave element, frequency filter, oscillator, electronic circuit, thin film piezoelectric resonator, and electronic apparatus A piezoelectric element is provided that is equipped with a seed layer formed on a base substrate and a piezoelectric film formed on the seed layer. The seed layer is formed of a perovskite type piezoelectric material preferentially oriented to pseudo cubic (100). T... | 08/03/2010 |
| 7726784 | Liquid ejection head A liquid ejection head according to one aspect of the invention comprises: a channel unit that comprises: a plurality of individual liquid channels each including a pressure chamber; and a first surface having a plurality of openings corresponding to a plurality of ... | 06/01/2010 |
| 7722166 | Inkjet printhead having piezoelectric actuator and method of driving the piezoelectric actuator An inkjet printhead and a method of driving the inkjet printhead include a flow channel substrate having a pressure chamber, and a piezoelectric actuator formed on the flow channel substrate to apply a driving force to the pressure chamber to eject ink. The piezoele... | 05/25/2010 |
| 7686434 | Inkjet recording system An inkjet recording system including an inkjet recording head in which a part of wall face of a pressure chamber in which a nozzle is provided is formed of a piezoelectric element, the piezoelectric element being activated and deformed to make pressure wave act on i... | 03/30/2010 |
| 7682000 | Piezoelectric actuator, liquid transporting apparatus and method of producing piezoelectric actuator A piezoelectric actuator of an ink-jet head includes a vibration plate covering pressure chambers, and piezoelectric elements formed on a surface of the vibration plate. Each of the piezoelectric elements has stacked piezoelectric layers; individual electrodes and c... | 03/23/2010 |
| 7682001 | Piezoelectric actuator inkjet head and method of forming the same A piezoelectric actuator of an inkjet head and a method of forming the piezoelectric actuator. The piezoelectric actuator is formed on a vibration plate to provide a driving force to each of a plurality of pressure chambers. The piezoelectric actuator includes a low... | 03/23/2010 |
| 7677709 | Liquid ejection head and image forming apparatus The liquid ejection head comprises: a nozzle through which liquid is ejected; a pressure chamber which is connected to the nozzle; a diaphragm which pressurizes the pressure chamber; and a laminated piezoelectric element which causes the diaphragm to deform and is f... | 03/16/2010 |
| 7654654 | Ink jet printer head An ink jet printer head including a cavity unit; an piezoelectric actuator; and a wiring substrate. The piezoelectric actuator includes pairs of first common electrode connection pads and pairs of first individual electrode connection pads which are provided on an o... | 02/02/2010 |
| 7625076 | Inkjet head including plates bonded together by adhesive An inkjet head including (a) an ink channel unit and (b) an actuator unit which are superposed on each other. The ink channel unit has (a-1) nozzles, (a-2) first recesses which are held in communication with the nozzles and which are formed in a recess... | 12/01/2009 |
| 7618131 | Structure of piezoelectric element and liquid discharge recording head, and method of manufacture therefor A piezoelectric element structure comprises a supporting substrate, and a piezoelectric film supported on the supporting substrate, in which the piezoelectric film contains a first layer, and a second layer having zirconium, each provided with perovskite structure, ... | 11/17/2009 |
| 7611233 | Liquid ejection head, liquid ejection apparatus, and image forming apparatus The liquid ejection head includes: a plurality of liquid ejection ports; a plurality of pressure chambers which are respectively communicated with the liquid ejection ports; a diaphragm which configures at least one surface of each of the pressure chambers; and a pl... | 11/03/2009 |
| 7607765 | Liquid-droplet jetting apparatus A liquid-droplet jetting apparatus is provided with a cavity unit in which nozzles and pressure chambers are formed; and a piezoelectric actuator which includes active portions which deforms when a drive voltage is applied thereto. In the apparatus, the active porti... | 10/27/2009 |
| 7571994 | Liquid-jet head and liquid-jet apparatus A liquid-jet head includes: head main bodies each including at least a nozzle plate in which nozzle orifices are formed, each of the nozzle orifices being that from which liquid droplets are ejected; a passage-forming substrate, the nozzle plate being joined to one ... | 08/11/2009 |
| 7537321 | Droplet discharge head and manufacturing method thereof The droplet discharge head comprises: a plurality of nozzles which discharge droplets of liquid; a plurality of pressure chambers which are connected to the nozzles and filled with the liquid to be discharged through the nozzles; and a laminated piezoelectric body w... | 05/26/2009 |
| 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 |
| 7413290 | Piezoelectric element, droplet-ejecting head, and droplet-ejecting apparatus The present invention provides a piezoelectric element at least including a piezoelectric layer, a first higher-potential electrode layer formed in contact with the piezoelectric layer on one face of the piezoelectric layer, and a second lower-potential electrode la... | 08/19/2008 |
| 7413292 | Method of driving piezoelectric ink jet head The present invention is directed to a method for driving a piezoelectric ink jet head comprising a piezoelectric actuator AC that includes two piezoelectric ceramic layers 7a, 7b having such a size that covers the plurality of pressure c... | 08/19/2008 |
| 7387373 | Liquid ejecting head and liquid ejecting apparatus A liquid ejecting head includes a flow passage formation section and a sealing section. The flow passage formation section includes a plurality of nozzle openings, ejecting liquid therefrom, a plurality of pressure generation parts, corresponding to the nozzle openi... | 06/17/2008 |
| 7387374 | Droplet ejection head and image recording apparatus The droplet ejection head comprises: a nozzle through which a droplet of liquid is ejected; a pressure chamber which is connected to the nozzle and filled with the liquid to be ejected through the nozzle; a diaphragm which defines a part of the pressure chamber; an ... | 06/17/2008 |
| 7387375 | Inkjet recording head and inkjet recording apparatus The inkjet recording head comprises: pressure chambers in which nozzles for discharging ink are formed; diaphragms which form portions of walls of the pressure chambers; laminated piezoelectric elements which are disposed on the diaphragms at a side opposite from th... | 06/17/2008 |
| 7364377 | Print engine assembly with an elongate converging ink distribution assembly A print engine assembly includes an elongate chassis. A platen is mounted on the chassis. A feed mechanism feeds print media over the platen and along a print feed path. An elongate printhead assembly is mounted on the chassis for carrying out a printing operation o... | 04/29/2008 |
| 7364275 | Piezoelectric actuator of an ink-jet printhead and method for forming the same A piezoelectric actuator for providing a driving force to a pressure chamber of an ink-jet printhead for ejecting ink by deforming a vibration plate, the vibration plate forming an upper wall of the pressure chamber, the piezoelectric actuator including a lower elec... | 04/29/2008 |
