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WO/2022/046131A1 |
Provided is a system for emplacing an electrically activated lost circulation material within a wellbore. The system may comprise a bottom hole assembly connected to a drill string, with an activation tool that may be provided along the ...
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WO/2022/041995A1 |
Disclosed are a piezoelectric fiber having a Swiss roll structure, and a preparation method for same and the use of same. The piezoelectric fiber comprises a piezoelectric function layer and an insulating layer coated around the piezoele...
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WO/2022/043813A1 |
Haptic articles, methods of making the haptic articles, and applications using sintered articles prepared from molded gel compositions are provided. The haptic articles include a shaped zirconia ceramic plate and a piezoelectric actuator...
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WO/2022/047406A1 |
An acoustic resonator is fabricated by bonding a first piezoelectric plate to a substrate and spans locations for a first and second cavity in the substrate. A top surface of the first piezoelectric plate is planarized to a first thickne...
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WO/2022/040869A1 |
Disclosed are methods and apparatus for depositing uniform layers on a substrate (201) for piezoelectric applications. An ultra-thin seed layer (308) having a uniform thickness from center to edge thereof is deposited on a substrate (201...
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WO/2022/043206A1 |
A piezoelectric composite comprising (a) an olefin copolymer and (b) a plurality of piezoelectric filler particles is disclosed. Each of the plurality of piezoelectric filler particles can be dispersed in the olefin copolymer. Also discl...
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WO/2022/045472A1 |
A piezoelectric linear motor-based braille cell according to the present invention comprises: a frame formed to have a shape into which piezoelectric linear motors can be inserted; a plurality of piezoelectric linear motors each being in...
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WO/2022/034390A1 |
A piezoelectric composite material is formed from a cellulosic material and an inorganic piezoelectric material dispersed in a piezoelectric polymer. The piezoelectric polymer of the composite material has a dielectric constant of from 1...
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WO/2022/033842A2 |
The invention relates to a piezoelectric transducer (1) which comprises a piezoelectric element (2) and an encapsulation (7) which surrounds the piezoelectric element (2), the encapsulation (7) being designed to adjust the electromechani...
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WO/2022/033933A1 |
The present invention relates to a method of fabricating magnetic deformable machines comprising heterogeneous voxels, as well as to a deformable 3D magnetic machine, the magnetic machine having a size of less than 10000 mm, the magnetic...
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WO/2022/031599A1 |
MOCVD systems can be used to form single crystal piezoelectric ScxAl1-xN layers having a concentration of Sc in a range between about 4% and about 18% at temperatures in a range, for example, between about 800 degrees Centigrade and abou...
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WO/2022/023313A1 |
The invention relates to a projection exposure apparatus (400, 100) comprising a projection objective (408, 107, 200), the projection objective (408, 107, 200) comprising an optical device (1), the optical device (1) comprising an optica...
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WO/2022/024529A1 |
This piezoelectric film-equipped substrate and this piezoelectric element each comprise, on a substrate, a lower electrode layer, a piezoelectric film containing a perovskite type oxide including lead as the A site main component, and a ...
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WO/2022/024436A1 |
[Problem] To provide a polyfunctional multi-piezo material that has both high piezoelectricity and high stress luminescence characteristics. [Solution] A polyfunctional multi-piezo material represented by chemical formula Li(1-X)(1+α)Na...
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WO/2022/022831A1 |
The present invention relates to a cantilever for a piezoelectric energy harvesting system, wherein the cantilever (2,20,30) comprises two layers (21,22,31,32) formed of polyvinylidene fluoride, and wherein a core layer (23,33) formed of...
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WO/2022/019858A1 |
The present invention relates to a body (2); at least one actuator (3) made of an electro active polymer material, which changes form depending on the electrical energy so that it triggers the body (2); at least two reinforcers (4) which...
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WO/2022/019856A1 |
This invention relates to a body (2), at least one control surface (3) located on the body (2), enabling to control the flow of fluid by moving relative to the body (2), at least one actuator (4) produced from an electro-active polymer m...
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WO/2022/019852A1 |
The invention relates to a body (2), at least one actuator (3) produced from an electro¬ active polymer material that changes form due to electrical energy, thereby actuating the body (2), at least two strengtheners (4) allowing the act...
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WO/2022/013257A1 |
A piezoelectric and piezocata lytic composite material comprising M0S2 nanoflowers embedded within a body of polyvinylidene difluoride (PVDF) is provided along with layers, coatings, and sheets comprising such a material. Also disclosed ...
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WO/2022/012847A1 |
The invention relates to an apparatus for generating a haptic signal, having a haptics module (100) for generating a vibration, a base plate (14) and a cover plate (13) which are arranged parallel to each other, wherein the cover plate (...
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WO/2022/008864A1 |
The present disclosure relates to driver circuitry (200) for driving a capacitive transducer (210), e.g., a piezoelectric transducer or an electrostatic transducer. The circuitry (200) comprises: a power supply (260); a reservoir capacit...
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WO/2022/009747A1 |
Provided is a pressing force detection device comprising a pressure sensor and a computing unit. The pressure sensor generates an output voltage of a first polarity as the pressure sensor deforms along with an operation plate when a part...
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WO/2022/009820A1 |
A drive circuit for a piezoelectric ceramic element according to one aspect of the present invention comprises a drive control unit that generates a voltage for controlling the driving of a piezoelectric ceramic element, a pulse voltage ...
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WO/2022/007043A1 |
Provided in the present application is a piezoelectric ultrasonic transducer, comprising a substrate and a diaphragm, wherein the center of the substrate is provided with a cavity; the diaphragm comprises a structural layer, a first piez...
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WO/2022/010833A1 |
An acoustic wave device for performing at least one of emitting acoustic energy into a fluid and receiving the acoustic energy from the fluid. The device includes a substrate with a cavity that is configured to hold the fluid. A resonato...
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WO/2022/010879A1 |
Surface acoustic wave (SAW) weighing apparatus and related methods are provided for measuring weight of a load employing a displaceable elastic member that is displaced by the load. A piezoelectric SAW transducer is coupled to the elasti...
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WO/2022/004848A1 |
A piezoelectric element according to the present invention is provided with: a laminated body in which an internal electrode and piezoelectric layers are laminated; and a surface electrode that is located at a lateral surface of the lami...
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WO/2022/004562A1 |
A vibratory gyro element 100 comprises a fixed part 10, an oscillator 20 having a vibration mode of cos Nθ (N is a natural number of 2 or more), a support part 30, and an electrode 40. The electrode 40 is disposed in each of 4N orientat...
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WO/2022/001390A1 |
A piezoelectric sensor and a manufacturing method therefor, and a detection apparatus, which relate to the technical field of sensing. The piezoelectric sensor comprises: an array substrate (101); a first cover layer (102) located on the...
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WO/2022/004068A1 |
This piezoelectric laminate comprises: a substrate; an oxide film formed on the substrate and containing zinc and oxygen as main elements; an electrode film formed on the oxide film; and a piezoelectric film, which is an alkaline niobium...
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WO/2022/000083A1 |
The present invention relates to a composite film that is capable of converting mechanical energy to electrical energy. The film comprises a substrate and piezoelectric nanoparticles that are configured to form a plurality of pores. The ...
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WO/2022/005030A1 |
The present invention relates to a piezoelectric single-crystal element, a MEMS device using same, and a method for manufacturing same. Particularly, an embodiment of the present invention may provide a piezoelectric single-crystal eleme...
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WO/2022/002598A1 |
The present invention relates to an electroactive elastomer transducer, which comprises: - at least two planar electrode bodies, which have at least one first layer made of at least one thermoplastic polymer, wherein at least one surface...
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WO/2021/261154A1 |
The present invention addresses the problem of providing a piezoelectric element that uses a piezoelectric film that has electrode layers on either surface of a piezoelectric layer and has protection layers on the surfaces of the electro...
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WO/2021/261485A1 |
This elastic wave device comprises a composite substrate and an excitation electrode positioned on an upper surface of the composite substrate. The composite substrate comprises a support substrate, a multilayer film, and a piezoelectric...
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WO/2021/259633A1 |
The invention relates to a mirror, in particular for a microlithographic projection exposure apparatus, comprising an optical effective surface, a mirror substrate (10, 21, 31, 41, 50, 70, 80), a reflection layer stack (28, 38, 48, 75, 8...
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WO/2021/259248A1 |
An ultrasonic fingerprint recognition sensor, comprising a rigid substrate (1), a flexible substrate (2) arranged on the rigid substrate (1), and a receiving electrode layer (10), a piezoelectric film layer (12), and a transmission elect...
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WO/2021/260917A1 |
The present invention addresses the problem of providing a piezoelectric element which is for ultrasonic measuring instrument, and which can, even when a piezoelectric element made of lead-free alkali niobate piezoelectric ceramics is us...
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WO/2021/260165A1 |
The invention relates to a material deposition method comprising: preparing a precursor solution of Pb(Zrx,Ti1-x)O3 using 1-methoxy-2-propanol as a solvent and acetylacetone as a modifier; and forming a seed layer for a electroactive fil...
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WO/2021/261548A1 |
A piezoelectric film which exhibits the property of the polarity of the charge produced when stretching the piezoelectric film in the left-right direction and the polarity of the charge produced when stretching the piezoelectric film in ...
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WO/2021/261384A1 |
[Problem] Provide a piezoelectric element and a vibration-generating device that are capable of touch detection and tactile presentation, and that have excellent productivity. [Solution] The piezoelectric element of the present technolog...
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WO/2021/261556A1 |
The present invention addresses the problem of providing an inertial force sensor with which it is possible to enhance sensitivity in a desired range while increasing an inertial force detection range. An inertial force sensor (10) is pr...
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WO/2021/256653A1 |
Disclosed are an ultrasonic linear motor and an operation method therefor according to an embodiment. The ultrasonic linear motor comprises: a vibrating body comprising an elastic body and a first piezoelectric element and a second piezo...
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WO/2021/253757A1 |
The present invention provides a thin-film acoustic wave filter and a manufacturing method therefor. The thin-film acoustic wave filter comprises: a first substrate comprising a first surface and a second surface disposed opposite to eac...
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WO/2021/256264A1 |
In the present invention, a layered part (120) includes, above at least an opening (113), the following: a first single-crystal piezoelectric layer (130); a second single-crystal piezoelectric layer (140); an intermediate electrode layer...
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WO/2021/253579A1 |
Disclosed are a preparation method for a piezoelectric composite material, and the application thereof. The preparation method comprises: step one, designing a 3D printing curved-surface grid mold, and performing printing, preparing and ...
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WO/2021/257577A1 |
A power converter (200) including a piezoelectric resonator (210). The power converter includes a first transistor (220) coupled between an input terminal (IN) and a first plate (P1) of the piezoelectric resonator, and a second transisto...
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WO/2021/256252A1 |
This bending sensor (1) comprises: a piezoelectric element (10) arranged on a bendable base material (103); a voltage detection circuit (15) which detects the voltage generated in the piezoelectric element (10); and a calculation unit (1...
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WO/2021/256370A1 |
[Problem] To provide a drive method, a drive circuit, and a displacement drive device with which it is possible to maximize the amount of displacement of a dielectric element within a range that does not compromise reliability. [Solution...
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WO/2021/256265A1 |
A layered part (120) includes, at least above a recess (113), a first single crystal piezoelectric layer (130), a second single crystal piezoelectric layer (140), an intermediate electrode layer (150), a lower electrode layer (160), and ...
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