Patent application number | Description | Published |
20110007114 | PIEZOELECTRIC ELEMENT, METHOD FOR MANUFACTURING THE SAME, PIEZOELECTRIC ACTUATOR, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element includes: a substrate; a lower electrode that is formed on and/or over the substrate; a piezoelectric substance layer that covers the lower electrode; and an upper electrode that is formed on and/or over the piezoelectric substance layer, wherein a side surface of the piezoelectric substance layer includes a first portion that extends from an upper surface of the piezoelectric substance layer and a second portion that extends from the first portion, the first portion is inclined at a first angle with respect to an upper surface of the substrate, the second portion is inclined at a second angle with respect to the upper surface of the substrate, the second angle is smaller than the first angle, and the upper electrode covers at least the first portion and the second portion. | 01-13-2011 |
20110043575 | PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND METHOD FOR PRODUCING PIEZOELECTRIC ELEMENT - A piezoelectric element includes a substrate; a first conductive layer disposed on or above the substrate; a piezoelectric layer covering a top and a side of the first conductive layer; a relaxing layer disposed on or above the piezoelectric layer and along an edge of a top surface of the piezoelectric layer; and a second conductive layer covering at least the relaxing layer and the piezoelectric layer. | 02-24-2011 |
20110134194 | PIEZOELECTRIC DEVICE AND METHOD FOR MANUFACTURING THE SAME, PIEZOELECTRIC ACTUATOR, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric device includes: a substrate; a first electrode formed over the substrate; a first piezoelectric element formed over the first electrode; a low density region which is formed at a side of the first piezoelectric element and has density lower than that of the first piezoelectric element; a second piezoelectric element which is formed to cover the first piezoelectric element and the low density region; and a second electrode formed over the second piezoelectric element. | 06-09-2011 |
20110228013 | PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, DROPLET-EJECTING HEAD, DROPLET-EJECTING APPARATUS, AND METHOD FOR MANUFACTURING PIEZOELECTRIC ELEMENT - A piezoelectric element includes a first electrode disposed on a substrate, a piezoelectric layer disposed on the first electrode, a second electrode disposed on the piezoelectric layer, and a resin layer that covers at least the side surfaces of the first electrode. The first electrode includes a metal layer and an anti-oxidation layer. The metal layer is formed of a base metal. The anti-oxidation layer is disposed between the metal layer and the piezoelectric layer to prevent contact between the metal layer and the piezoelectric layer. | 09-22-2011 |
20110234704 | PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, LIQUID DROPLET EJECTING HEAD, LIQUID DROPLET EJECTING APPARATUS, AND METHOD OF PRODUCING PIEZOELECTRIC ELEMENT - The piezoelectric element includes a first electrode disposed on a substrate, a piezoelectric material layer disposed on the first electrode, a second electrode disposed on the piezoelectric material layer, and a protective film covering at least a side surface of the piezoelectric material layer. The side surface of the piezoelectric material layer has a plurality of grooves extending along the direction from the second electrode toward the first electrode. | 09-29-2011 |
20110234708 | PIEZOELECTRIC ELEMENT, METHOD FOR MANUFACTURING THE SAME, PIEZOELECTRIC ACTUATOR, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element includes a first electrode, a second electrode, and a piezoelectric layer between the first electrode and the second electrode. The first electrode includes a first electroconductive layer having a first surface at the piezoelectric layer side and a second electroconductive layer having a second surface at the first surface side. The second electroconductive layer mainly contains lanthanum nickelate and is disposed on the first surface. The first electrode, the piezoelectric layer and the second electrode overlap with each other when viewed in the direction of the normal to the first surface to form an overlap portion acting as a driving portion. At least part of the second electroconductive layer is disposed within the sides of the first surface within the driving portion, and the second surface has a smaller area than the first surface within the driving portion. | 09-29-2011 |
20120007927 | PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, LIQUID EJECTING HEAD AND LIQUID EJECTING APPARATUS - A piezoelectric element includes a first electrode, a first piezoelectric layer which is formed at an upper side of the first electrode and at lateral sides to the first electrode, a porous layer which is formed so as to cover side surfaces of the first piezoelectric layer, and a second electrode which is formed at an upper side of the first piezoelectric layer and the porous layer. In the piezoelectric element, the porous layer contains at least one metal element constituting the first piezoelectric layer. | 01-12-2012 |
20120056945 | PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element according to an embodiment of the invention includes a first electrode containing a noble metal, a first multilayer composite disposed on the first electrode, a second multilayer composite disposed on the first electrode with a distance from the first multilayer composite, an oxide film partly disposed on the surface of the first electrode between the first multilayer composite and the second multilayer composite, and a covering layer. The covering layer covers the side surfaces of the first and second multilayer composites, and the oxide film and the surface of the first electrode between the first multilayer composite and the second multilayer composite. The first multilayer composite and the second multilayer composite each include a piezoelectric layer, and a second electrode over the piezoelectric layer. | 03-08-2012 |
20130300806 | PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR, LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, AND METHOD FOR PRODUCING PIEZOELECTRIC ELEMENT - A piezoelectric element includes a substrate; a first conductive layer disposed on or above the substrate; a piezoelectric layer covering a top and a side of the first conductive layer; a relaxing layer disposed on or above the piezoelectric layer and along an edge of a top surface of the piezoelectric layer; and a second conductive layer covering at least the relaxing layer and the piezoelectric layer. | 11-14-2013 |
20140240405 | LIQUID EJECTING HEAD, LIQUID EJECTING APPARATUS, PIEZOELECTRIC ELEMENT, AND ULTRASONIC SENSOR - A liquid ejecting head which includes a piezoelectric element which includes a first electrode, a piezoelectric layer which is provided on the first electrode, and on which a plurality of piezoelectric films are laminated, a second electrode which is provided on the piezoelectric layer, and a plurality of active units which are interposed between the first electrode and the second electrode, and a pressure generating chamber which communicates with nozzle openings which eject liquid, and in which a pressure fluctuation is generated by the piezoelectric element, in which a plurality of grooves with inner faces facing the first electrode side are formed on a side surface of the piezoelectric layer on each interface of each of the piezoelectric films along a first direction and a second direction which cross a third direction which goes from the first electrode to the second electrode. | 08-28-2014 |
Patent application number | Description | Published |
20090093070 | CAPACITOR, METHOD OF MANUFACTURING THE SAME, METHOD OF MANUFACTURING FERROELECTRIC MEMORY DEVICE, METHOD OF MANUFACTURING ACTUATOR, AND METHOD OF MANUFACTURING LIQUID JET HEAD - A method of manufacturing a capacitor, including: forming a lower electrode on a substrate; forming a dielectric film of a ferroelectric or a piezoelectric on the lower electrode; forming an upper electrode on the dielectric film; and forming a silicon oxide film so that at least the dielectric film is covered with the silicon oxide film, the silicon oxide film being formed by using trimethoxysilane. | 04-09-2009 |
20090153625 | CAPACITOR, METHOD OF MANUFACTURING THE SAME, METHOD OF MANUFACTURING FERROELECTRIC MEMORY DEVICE, METHOD OF MANUFACTURING ACTUATOR, AND METHOD OF MANUFACTURING LIQUID JET HEAD - A method of manufacturing a capacitor, including: forming a lower electrode on a substrate; forming a dielectric film of a ferroelectric or a piezoelectric on the lower electrode; forming an upper electrode on the dielectric film; and forming a silicon oxide film so that at least the dielectric film is covered with the silicon oxide film, the silicon oxide film being formed by using trimethoxysilane. | 06-18-2009 |
20090244206 | PIEZOELECTRIC ELEMENT AND ITS MANUFACTURING METHOD, PIEZOELECTRIC ACTUATOR, AND LIQUID JET HEAD - A piezoelectric element includes: a substrate; a lower electrode formed above the substrate; a piezoelectric layer formed above the lower electrode; and an upper electrode formed above and at least in a portion of the piezoelectric layer, wherein the piezoelectric layer has a first portion formed between the lower electrode and the upper electrode and a second portion formed outside and continuous with the first portion, the second portion covering at least a portion of the lower electrode, and having a film thickness that is thinner than a film thickness of the first portion. | 10-01-2009 |
20120236081 | PIEZOELECTRIC ELEMENT, LIQUID EJECTING HEAD, AND LIQUID EJECTING APPARATUS - A piezoelectric element including: a first electrode, a piezoelectric layer formed above the first electrode to have a longitudinal direction and a transverse direction, and a second electrode formed above the piezoelectric layer, wherein at least a part of a side surface of the piezoelectric layer in the transverse direction is a concavo-convex surface, and a width of the piezoelectric layer in the transverse direction from the second electrode to the first electrode changes with the concavo-convex surface. | 09-20-2012 |
Patent application number | Description | Published |
20150247436 | ELECTRICALLY HEATED CATALYST APPARATUS AND METHOD FOR MANUFACTURING THE SAME - An electrically heated catalyst apparatus includes a carrier, a pair of surface electrodes, a wiring and a plurality of fixed layers. The carrier is formed of ceramics on which a catalyst is carried. The pair of surface electrodes face each other and are extended in an axial direction of the carrier on an outer peripheral surface of the carrier. The wiring is formed into a pectinate shape and is configured to supply electric power from an outside of the electrically heated catalyst apparatus to the surface electrode. The plurality of fixed layers is configured to fix the wiring on the surface electrode. The electrically heated catalyst apparatus is formed so that the carrier is electrically heated through the surface electrode. Elongation of the wiring is 15% or more. | 09-03-2015 |
20150247535 | CLUTCH - A clutch is provided with a drive-side rotational body and a driven-side rotational body, which can move in the axial direction between a coupled position and a decoupled position. The driven-side rotational body has a groove having a helical portion and an annular portion that is deeper than the helical portion. The driven-side rotational body is urged toward the coupled position by an urging member. The driven-side rotational body is moved to the decoupled position against the urging force of the urging member by insertion of a pin into the helical portion. A projection is provided on the tip of the pin, and a recessed groove for accommodating the projection when the pin is inserted into the helical portion is provided in the bottom surface of the helical portion. | 09-03-2015 |
20150247536 | CLUTCH - A clutch is provided with a drive-side rotational body and a driven-side rotational body, which is movable in the axial direction of the drive-side rotational body between a coupled position. The driven-side rotational body has a groove having a helical portion and an annular portion. The clutch also includes an urging member and a pin that is selectively inserted into and retracted from the groove. The clutch moves the driven-side rotational body to the decoupled position against the urging force of the urging member by inserting the pin in the helical portion. The clutch further includes a restricting portion that restricts shifting of the position of the pin from the annular portion to the helical portion when the pin is positioned in the annular portion. | 09-03-2015 |
20150252857 | CLUTCH - The clutch is provided with a drive-side rotational body, a driven-side rotational body, driven-side rotational body, and an urging member. The driven-side rotational body is movable in the axial direction of the drive-side rotational body between a first position, at which the driven-side rotational body is coupled to the drive-side rotational body, and a second position, at which the driven-side rotational body is decoupled from the drive-side rotational body. The urging member urges the driven-side rotational body from the second position toward the first position. The driven-side rotational body includes a helical groove that extends in the urging direction of the urging member. The clutch is further provided with a pin that can be inserted into the helical groove. | 09-10-2015 |
20150292386 | ELECTRICALLY HEATED CATALYST DEVICE AND ITS MANUFACTURING METHOD - An electrically heated catalyst device includes a catalyst support, a surface electrode disposed on an outer surface of the catalyst support and extending in an axis direction of the catalyst support, a wiring line member including a root section extending in the axis direction of the catalyst support and comb teeth-like wiring lines extending from the root section in a circumference direction of the catalyst support and fixed to the surface electrode, an outer cylinder covering an outer surface of the catalyst support, and a holding member holding the catalyst support and packed between the catalyst support and the outer cylinder, in which the catalyst support is heated by feeding a current through the surface electrode and the wiring line member. A slit extending from an outer edge in the circumferential direction of the catalyst support is formed in the root section of the wiring line member. | 10-15-2015 |