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WO/2022/233984A1 |
The invention relates to a lead-free piezoceramic material based on bismuth sodium titanate-barium titanate (BNT-BT), and to a method for producing same.
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WO/2022/233074A1 |
The present application relates to a piezoelectric transducer preparation method and a piezoelectric transducer. The method comprises: first, preparing a bottom acoustic reflection layer on a carrier wafer; then preparing a top acoustic ...
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WO/2022/236034A1 |
Described are structures and techniques for providing high-efficiency, high-power-density piezoelectric resonators (PRs) for use in power converters. In some embodiments, a power converter can include a PR for energy transfer, where the ...
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WO/2022/233122A1 |
Disclosed in the present invention is a digital chip-based digital driving method for a piezoelectric ceramic transformer, comprising the following steps: acquiring a rectified output voltage of a piezoelectric ceramic transformer; compa...
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WO/2022/226914A1 |
The present invention provides a piezoelectric MEMS silicon resonator having a beam structure, a forming method therefor, and an electronic device. The forming method comprises: providing, as a substrate, an SOI silicon wafer having a lo...
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WO/2022/230707A1 |
Provided is a polymer piezoelectric film element which generates electricity at a high degree of sensitivity in response to vibrations across a broad frequency band, including vibrations of a comparatively low frequency no higher than 10...
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WO/2022/226912A1 |
Disclosed in the present invention are a resonator and a method for forming same, and an electronic device. The method comprises: with regard to an SOI wafer comprising a top silicon layer, a buried oxide layer and a base silicon layer, ...
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WO/2022/232485A1 |
A mechanically and piezoelectrically anisotropic polymer thin film is formed from a crystallizable polymer and an additive configured to interact with the polymer to facilitate chain alignment and, in some examples, create a higher cryst...
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WO/2022/226911A1 |
Disclosed in the present invention are a piezoelectric MEMS silicon resonator and a forming method therefor, and an electronic device. The piezoelectric MEMS silicon resonator comprises: a silicon substrate; a lower cavity, wherein a top...
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WO/2022/231554A1 |
The present invention relates to a body (2) provided at air vehicles; at least one rotor (3) extending longitudinally out of the body (2) and rotating around an axis along which it extends; at least one blade (4) connected to the rotor (...
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WO/2022/232520A1 |
Embodiments disclosed herein relate to a thin, light, and portable system for measuring one or more parameters of a contact patch between a tire and a surface. The system may be configured with an array of sensors capable of being remova...
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WO/2022/230712A1 |
This elastic body and this piezoelectric material are joined together by this conductive adhesive portion in which conductive particles are dispersed.
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WO/2022/230622A1 |
Provided is a piezoelectric laminated film that is not discolored in high-temperature, high-humidity environments. This piezoelectric laminated film is configured from a piezoelectric film and a transparent adhesive film that satisfies c...
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WO/2022/231020A1 |
Disclosed are high-purity piezoelectric ceramic nanopowder for low-temperature calcination, and a preparation method therefor. The high-purity piezoelectric ceramic nanopowder can have a high-quality and uniform composition ratio by comp...
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WO/2022/224594A1 |
The present invention comprises: a substrate which has a principal surface with a diameter of not less than 3 inches; and a piezoelectric film which is formed on the substrate, which contains potassium, sodium, niobium, and oxygen, and w...
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WO/2022/224974A1 |
[Problem] To provide: a magnetostrictive member having a high magnetostrictive constant and parallel magnetostriction, with little variation in the magnetostrictive constant and parallel magnetostriction between members; and a method for...
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WO/2022/225719A1 |
High-resolution intravascular ultrasound (H-IVUS) operates under a large acoustic bandwidth, provides high resolution while maintaining good depth penetration, and exhibits other favorable characteristics like focused imaging. A H-IVUS t...
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WO/2022/225390A1 |
A compliant structure (1) comprising a frame (2), a shuttle (3) distant from the frame (2) mounted on a cantilever (4) that is supported by the frame (2), wherein the cantilever (4) with the shuttle (3) is movable transversely to and out...
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WO/2022/224671A1 |
Provided is a transparent electrically conductive piezoelectric laminate film having high transparency and low resistance. The present invention relates to a transparent electrically conductive piezoelectric laminate film in which a pi...
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WO/2022/226281A1 |
An energy harvesting system is disclosed that is especially well-suited for use on aerodynamic systems such as guided projectiles or other aerobodies. A series of piezoelectric cantilevers are arranged to capture vibrations from the ambi...
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WO/2022/226516A1 |
A sensor device that senses proper acceleration. The sensor device includes a substrate, a spacer layer supported over a first surface of the substrate, at least a first cantilever beam element having a base and a tip, the base attached ...
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WO/2022/224017A1 |
It is provided a piezoelectric linear motor (1) comprising: a first portion (2), a second portion (3), motor means (4) comprising piezoelectric elements (40) and capable of moving the second portion (3) with respect to the first portion ...
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WO/2022/221387A1 |
A system of fabric-based devices designed as transistors with tri-state behavior that can measure any geometries on 2D and 3D surfaces. The devices are constructed from layers of conductive materials and flexible sheets that allow signal...
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WO/2022/219981A1 |
[Problem] To provide: a method for manufacturing a magnetostriction material that enables the manufacture of a magnetostriction material without using a mold; a magnetostriction material; and a method for manufacturing an energy conversi...
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WO/2022/221246A1 |
A hybrid halide perovskite film and methods of forming a hybrid halide perovskite film on a substrate are described. The film is formed on the substrate by depositing an organic solution on a substrate, heating the substrate and the orga...
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WO/2022/218646A1 |
The present invention relates to a magnetic field sensor (6) for detecting a magnetic field (B), comprising: - a magnetoelectric sensor element (1) which can mechanically oscillate, the sensor element (1) having at least one first layer ...
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WO/2022/220144A1 |
Provided is a transparent conductive piezoelectric laminated film that realizes high transparency and low resistance. The present invention is related to a transparent conductive piezoelectric laminated film comprising a piezoelectric ...
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WO/2022/215666A1 |
The present invention increases the mechanical quality coefficient (Qm) of a lead-free piezoelectric porcelain composition. This lead-free piezoelectric porcelain composition includes a main phase that includes niobium (Nb)/alkaline ta...
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WO/2022/215524A1 |
The preset invention provides a piezoelectric film which has high piezoelectric performance. This piezoelectric film comprises: a piezoelectric layer that is composed of a polymer composite piezoelectric body which contains piezoelectric...
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WO/2022/213467A1 |
The present invention relates to a method for manufacturing a piezoelectric transducer, comprising: forming, on a piezoelectric wafer, a first mark parallel to or perpendicular to a preset direction of the piezoelectric transducer; formi...
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WO/2022/215761A1 |
Disclosed are: a method for manufacturing a solid-phase piezoelectric precursor polymer capable of undergoing a reversible reaction; and a method for manufacturing a piezoelectric thin film using same, wherein toxic and highly explosive ...
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WO/2022/207384A1 |
The invention relates to a MEMS sound transducer (10, 10', 10'', 10''') having the following features: - at least one actuator (16, 16a-16d, 16a''-16d'', 16a'''-16d'''); - an emitting structure (14, 14', 14a-14d, 14'', 14'''), which is c...
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WO/2022/207504A1 |
The invention is directed to a piezoelectric composite comprising (a) a polymer matrix; and (b) a plurality of coated piezoelectric filler particles that are dispersed in the polymer matrix. Further, each of the plurality of coated piezo...
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WO/2022/212317A1 |
Doped-aluminum nitride (doped-AlN) films and methods of manufacturing doped-AlN films are disclosed. Some methods comprise forming alternating pinning layers and doped-AlN layers including a dopant selected from the group consisting of S...
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WO/2022/207038A1 |
The invention relates to a method for polarising a piezoceramic component exclusively under a gas atmosphere, comprising the steps of: heating the piezoceramic component to a temperature Tp that is lower than the Curie temperature Tc of ...
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WO/2022/210563A1 |
This piezoelectric film has as a main component a piezoelectric material having a Wurtzite-type crystal structure, and has an additive element including Kr; the piezoelectric material contains, as positive elements, one component selecte...
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WO/2022/210438A1 |
This method for manufacturing a piezoelectric element includes: an angle adjustment layer formation step for forming an angle adjustment layer containing an amorphous oxide on one main surface side of a flexible base material by sputteri...
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WO/2022/209404A1 |
This drive element (1) comprises a fixed part, a drive unit that is aligned on the side of the fixed part and that is linked to the fixed part, and a moveable part that is driven by the drive unit. A lower electrode (111), a piezoelectri...
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WO/2022/210182A1 |
This method for manufacturing a piezoelectric film includes a piezoelectric film formation step for forming a piezoelectric film, in which at least two types of crystal films are layered onto an amorphous film. The piezoelectric film for...
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WO/2022/210543A1 |
This copolymer has a structural unit represented by formula (1) (where R1 and R2 are each any one selected from the group consisting of a hydrogen atom, a methyl group, a dimethyl group, an ethyl group, an isopropyl group, an isobutyl gr...
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WO/2022/212569A1 |
A 6 GHz Wi-Fi bandpass filter includes a ladder filter circuit with two or more shunt transversely-excited film bulk acoustic resonators (XBARs) and two or more series XBARs. Each of the two or more shunt XBARS includes a diaphragm havin...
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WO/2022/209854A1 |
Provided is a highly durable piezoelectric film in which decreases in sound pressure can be suppressed even after repeated bending and stretching. The present invention comprises a piezoelectric body layer composed of a polymer composite...
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WO/2022/210092A1 |
Provided is a durable piezoelectric film that can limit reduction in sound pressure even after a long time of use or after repeated use. The piezoelectric film comprises a piezoelectric material layer comprising a polymer composite piezo...
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WO/2022/210922A1 |
This piezoelectric base material includes a long inner conductor and a piezoelectric layer covering the outer peripheral surface of the inner conductor. The piezoelectric layer has a piezoelectric thread wound around the inner conductor ...
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WO/2022/210916A1 |
This piezoelectric element comprises a layered body and an external electrode. In the layered body, a plurality of piezoelectric bodies and internal electrodes are laminated. The external electrode is positioned on a side surface of the ...
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WO/2022/211836A1 |
A micromachined ultrasonic transducer (MUT) which comprises a first piezoelectric layer and a second piezoelectric layer. The first piezoelectric layer is disposed between a first electrode and a second electrode. The second piezoelectri...
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WO/2022/209716A1 |
Provided are a piezoelectric element (1) and a method for manufacturing a piezoelectric element with which it is possible to achieve high breakdown voltage and drive stability without a decrease in piezoelectric characteristics. The pi...
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WO/2022/209717A1 |
Provided are: an inexpensive piezoelectric element (1), in which the deterioration of piezoelectric characteristics is suppressed; and a method for manufacturing a piezoelectric element. The piezoelectric element comprises, in the foll...
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WO/2022/203057A1 |
This detecting element comprises a substrate 10, a piezoelectric film 14 provided on the substrate, a lower electrode 12 and an upper electrode 16 opposing one another across at least a portion of the piezoelectric film, an insertion fil...
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WO/2022/200756A1 |
A transducer is provided for converting mechanical energy to electrical energy. The transducer (100) comprises: a substrate (120); a ferroelectric element (110) adhered to the substrate (120); and a first and second electrode (114, 115) ...
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