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WO/2021/253551A1 |
A preparation method for a composite PZT piezoelectric film based on a sol-gel method and an electrojet deposition method. The thickness of the composite PZT piezoelectric film prepared by the method can reach several to hundreds of micr...
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WO/2021/248539A1 |
A piezoelectric structure and a piezoelectric apparatus. The piezoelectric structure comprises a substrate (1), a first conductive layer arranged above the substrate (1), and a second conductive layer spaced apart from the first conducti...
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WO/2021/248538A1 |
Disclosed are a piezoelectric structure and a piezoelectric device. The piezoelectric structure comprises a substrate, a first electrically-conductive layer provided on a surface of the substrate, and a second electrically-conductive lay...
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WO/2021/248503A1 |
Provided in the embodiments of the present application are an ultrasonic transducer preparation method, an ultrasonic transducer, and an information collection element. The ultrasonic transducer preparation method comprises: forming on a...
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WO/2021/249844A1 |
Piezoelectric assembly, which comprises a substrate of Ni, Cu, or steel, a first oriented layer assembled on the substrate and a piezoelectric layer on the oriented layer. The piezoelectric layer has a degree of (100) orientation with re...
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WO/2021/251159A1 |
This piezoelectric device is provided with a base part (110) and a laminate part (120). The laminate part (120) includes, at least above a recess (113), a piezoelectric layer (130) and a pair of electrode layers (140, 150) that apply vol...
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WO/2021/244978A1 |
A layered solid element (100) comprises a ferroelectric layer (2) of a crystalline material Li1-x(Nb1-yTay)1+xO3+2x-z which has X- or 33°Y-orientation with respect to a substrate (10) of the layered solid element. The ferroelectric laye...
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WO/2021/246443A1 |
A membrane section (Mb) is provided with a penetrating groove (180) penetrating in the vertical direction thereof. The width of the penetrating groove (180) in a single crystal piezoelectric layer (130) becomes narrower further downward ...
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WO/2021/244877A1 |
The force sensing device (1) comprising: a sheet (2) of piezoelectric; at least a first and a second interdigitated electrodes (5, 50) located on a first main face (3) and at least a third and fourth interdigitated electrodes (6, 60) loc...
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WO/2021/246028A1 |
This vibration body comprises an electromechanical conversion element which is a piezoelectric ceramic composed of sodium niobate/potassium metal oxide, wherein the absolute value of the temperature characteristics of the relative dielec...
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WO/2021/246595A1 |
One embodiment of the present invention relates to a nano-piezoelectric element. According to one embodiment of the present invention, provided is a nano-piezoelectric element, comprising: a carbon layer formed of graphene having a honey...
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WO/2021/243546A1 |
A method for manufacturing a multi-hole pressure sensor, comprising the steps of: providing a substrate; forming a piezoelectric thin film on the upper surface of the substrate; performing multi-hole treatment on the piezoelectric thin f...
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WO/2021/241696A1 |
Provided is a frequency filter using a piezoelectric thin film, the frequency filter being able to perform frequency-filtering on high-frequency power of bulk power handled in a base station of a mobile phone. The frequency filter 10 com...
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WO/2021/243141A1 |
The present disclosure is directed to devices, systems and methods that include a stage and an actuator configured to transmit a orthogonal force to the stage, wherein the actuator is configured to receive a plurality of orthogonal accel...
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WO/2021/239243A1 |
An actuation device (100) is disclosed, comprising a support structure (110) and a flexible cantilever beam (101) extending from a first end (101a) fixed to the support structure (110) to a second free end (101b). The flexible cantilever...
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WO/2021/242443A1 |
A thin film actuator having transversely oriented structural stiffeners that serve to increase actuation stroke that results from longitudinal curvature. The thin film actuator may be deployed within electromechanical devices such that a...
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WO/2021/239187A1 |
The invention relates to an actuator made of a piezoelectric material comprising electrodes arranged at least on the outer surfaces thereof or inside same, which form two generators of acoustic waves, and comprising at least one friction...
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WO/2021/238558A1 |
Provided are a piezoelectric motor (10) and an electronic device. The piezoelectric motor (10) comprises: a piezoelectric patch (12); a circuit board (14) arranged on a side of the piezoelectric patch (12) and electrically connected to t...
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WO/2021/240973A1 |
Disclosed are a piezoelectric element connection structure, a vehicle, and a piezoelectric element connection method. This piezoelectric element connection structure is provided with: a main body part; a casing having a bottom surface, t...
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WO/2021/239595A1 |
The invention relates to an ultrasonic measuring arrangement for determining physical properties of a liquid or gaseous test medium (2) inside a high-pressure chamber (1), said arrangement comprising an ultrasonic sensor (3) for external...
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WO/2021/236302A1 |
Piezoelectrically actuated devices constructed from thin semiconductor membranes bonded directly to piezoelectric substrates are provided. Methods for fabricating these devices are also provided. The bonding of the semiconductor to the p...
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WO/2021/228898A1 |
Piezoelectric composite materials with high loading of piezoelectric ceramic filler of greater than 60 vol. % and up to 90 vol. % exhibit high piezoelectric properties. The higher loading of some embodiments of the composites is made pos...
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WO/2021/229272A1 |
An assembly comprising, a sensor target element; an electroactive polymer stack comprising a plurality of layers of compressible material with a respective electrode interposed between said layers; a sensor which is configured to output ...
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WO/2021/219051A1 |
The present invention relates to a semiconductor structure having stacked units, comprising: at least two units sequentially stacked in a thickness direction of the semiconductor structure. Each unit comprises a substrate, and an accommo...
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WO/2021/220544A1 |
A piezoelectric vibrator (1) according to the present invention comprises: a piezoelectric vibration element (10) which has a piezoelectric piece (11) and excitation electrodes (14a, 14b) provided on the piezoelectric piece (11); and a s...
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WO/2021/221253A1 |
Disclosed is a piezoelectric energy harvester having improved durability. The disclosed piezoelectric energy harvester comprises: a substrate; a piezoelectric element disposed on one surface or the other surface of the substrate; and an ...
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WO/2021/220087A1 |
The present invention is related to a stretchable tubular device (1) comprising at least one layer (Lx) of a stretchable polymer, a power supply (2) and a set of electrodes (3a, 3b) connected to said power supply (2). The power supply ca...
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WO/2021/220566A1 |
A connection part (130) is provided so as to be turned-back between a pair of beam parts (120). The connection part (130) includes a first coupling part, a second coupling part, and a bridging part. The first coupling part extends along ...
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WO/2021/210426A1 |
The present invention relates to a piezoelectric material containing polyvinylidene fluoride and a (meth)acrylic polymer including a structural unit that is derived from a (meth)acrylic monomer which is represented by formula (I). (I) (I...
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WO/2021/209816A1 |
Piezoelectric devices having small dimensions and which can operate at high frequencies with high penetration depths for a given applied voltage are described. The devices may be well suited for integration into medical devices, such as ...
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WO/2021/211965A1 |
A method of forming a piezoelectric thin film can include depositing a material on a first surface of a Si substrate to provide a stress neutral template layer. A piezoelectric thin film including a Group III element and nitrogen can be ...
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WO/2021/210595A1 |
The present invention comprises a single crystal piezoelectric layer (130) in which a first recessed section (132) is formed in a first facing surface (131) facing one main surface (111) of a base part (110). The single crystal piezoelec...
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WO/2021/208276A1 |
Disclosed in the present invention are a bismuth ferrite film material, a method for integrally preparing a bismuth ferrite film on a silicon substrate at a low temperature, and an application. The method comprises: under the condition o...
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WO/2021/210596A1 |
The present invention is provided with a base part (110) and a laminated part (120). The base part (110) includes one main surface (111) that is a flat surface, and the other main surface (112) located on the opposite side from the one m...
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WO/2021/204773A1 |
1. The invention relates to a balance chamber system for a dialysis machine comprising a dialyser for extracorporeal blood treatment. 2.1 A balance chamber system of this type is known comprising at least one balance chamber unit which i...
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WO/2021/205768A1 |
The present invention comprises a substrate, an output-side lower electrode film that is provided on the substrate, an output-side piezoelectric film that is an oxide film and is provided on the output-side lower electrode film, an outpu...
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WO/2021/204627A1 |
The invention relates to a vehicle seat element comprising a dielectric elastomer film (20, 22, 24). The dielectric elastomer film (20, 22, 24) can be integrated into a backrest (14), a seat base (12), and/or a headrest (24) for example....
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WO/2021/199800A1 |
The present invention provides a multilayer piezoelectric element that is obtained by stacking a plurality of piezoelectric films, each of which is obtained by sandwiching a piezoelectric layer between electrode layers and protective lay...
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WO/2021/198001A1 |
An apparatus includes a dielectric tile array including a plurality of dielectric tiles; and a plurality of electroactive (EA) material blocks configured to expand or contract in response to being actuated by the application of an actuat...
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WO/2021/200632A1 |
A piezoelectric ceramic composition containing, as a main component, a potassium sodium niobate-based perovskite-type complex oxide represented by composition formula ABO3. In addition, the piezoelectric ceramic composition includes Bi a...
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WO/2021/200790A1 |
Provided is a piezoelectric film which is less apt to be electrified and can be safely handled. A multilayered film according to the present invention comprises the piezoelectric film, which includes poly(vinylidene fluoride), and a prot...
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WO/2021/198452A1 |
A polymer composite exhibiting piezoelectric properties can be formed for flexible and/or thin film applications, in which the polymer composite includes a polymer matrix and a piezoelectric ceramic filler embedded in the polymer matrix....
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WO/2021/201899A1 |
An approach to a piezoelectric (PZT) device, such as a hard disk drive microactuator, includes one or more layers of poled PZT material, with top and bottom surfaces coupled with respective electrode layers coupled with a power source to...
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WO/2021/197500A1 |
The present disclosure relates to a semiconductor device, comprising: a substrate, which is provided with a first side and a second side opposite each other in the thickness direction of the substrate; a first group of resonator units, w...
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WO/2021/199516A1 |
A method for producing a slurry comprises: a first mixing step in which a mixture of lead acetate and zirconium oxide microparticles having an average grain diameter of 1-100 nm and/or a mixture of a bismuth compound and titanium oxide p...
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WO/2021/196919A1 |
Disclosed are a display substrate and a manufacturing method, and a display panel, which relate to the technical field of display. The display substrate comprises a first base (1), multiple vibration element modules (2), and a display mo...
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WO/2021/198448A1 |
A polymer composite exhibiting piezoelectric properties can be formed for flexible and/or thin film applications, in which the polymer composite includes a polymer matrix and a piezoelectric ceramic filler embedded in the polymer matrix....
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WO/2021/200417A1 |
Provided is an actuator (100) comprising: a first drive body (110) which is provided with a first piezoelectric body (113) extending in a first axis direction crossing the polarization axis; a second drive body (120) which is provided wi...
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WO/2021/197994A1 |
The present invention relates to a pump (1) having a pump actuator (2) which comprises at least one electroactive polymer, wherein the at least one electroactive polymer is arranged in such a way that a deformation of the at least one el...
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WO/2021/200455A1 |
This Layered piezoelectric element is obtained by folding back and layering a piezoelectric film having an electrode layer and a protective layer onto both surfaces of a piezoelectric body layer where piezoelectric body particles have be...
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