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WO/2020/218844A1 |
The present invention relates to a piezoelectric energy harvesting secondary battery. The present invention comprises: a first positive electrode part in which a positive electrode active material is applied on a conductive network forme...
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WO/2020/219831A1 |
The present invention relates to a near-field acoustic platform capable of synthesizing high resolution, arbitrarily shaped energy potential wells. A thin and viscoelastic membrane is utilized to modulate acoustic wavefront on a deep, su...
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WO/2020/216612A1 |
The present invention relates to an electromechanical actuator, comprising a stack arrangement (1) made of ceramic base material having electromechanical properties and electrodes (2) and a ceramic insulation (5) for use of the actuator ...
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WO/2020/210917A1 |
Presented is a wireless portable ultrasound acquisition system for dental imaging, having an ultrasound probe with a control switch connected through a cable to a portable ultrasound acquisition system that communicates wirelessly with a...
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WO/2020/213331A1 |
The purpose of the present invention is to provide a polymer composite piezoelectric body having excellent piezoelectric properties. A resin composition suitable for the formation of a polymer composite piezoelectric body, comprising a...
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WO/2020/213213A1 |
The present invention provides a resonator and a device that can improve resonator characteristics while suppressing an increase in dimensions. A resonator 13 comprises a vibration part 15 that performs contour vibration, a holder 14 tha...
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WO/2020/213332A1 |
Provided is a metal titanate that is useful as a filler for a polymer composite piezoelectric body. The metal titanate has an aspect ratio of 2 or more, and has a c-axis to a-axis (c/a ratio) in a crystal lattice of 1.005 or more.
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WO/2020/212648A1 |
A microelectromechanical (MEMS) resonator, comprising a spring-mass system having a first weight portion (M1), a second weight portion (M2), and a central spring portion (SP) in between the weight portions.
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WO/2020/210035A1 |
A method of controlling an electroactive device can include operating the electroactive device at an operating parameter for a first period of time, applying a switching voltage having a first magnitude and a first polarity to the electr...
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WO/2020/207684A1 |
The invention relates to an object positioning system including: an actuator system; and a measurement system, wherein the actuator system comprises an actuator made of a material with predominantly electrostrictive properties and substa...
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WO/2020/208308A1 |
A microelectromechanical (MEMS) resonator, comprising a resonator structure having a plurality of beam elements (1-6) and connection elements (C1-C5) with certain geometry, where the plurality of beam elements (1-6) are positioned adjace...
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WO/2020/200318A1 |
Example embodiments of the present disclosure provide a resonator (100) and a filter (500). The resonator (100) comprises a capacitance metal sheet (110), an inductance metal sheet (120) and a mounting metal sheet (130). The capacitance ...
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WO/2020/205244A1 |
A system for performing force sensing with an electromagnetic load may include a signal generator configured to generate a signal for driving an electromagnetic load and a processing subsystem configured to monitor at least one operating...
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WO/2020/202631A1 |
This structure for placing pressing sensors (11, 12) in a housing (2) of an electronic device (1) is characterized in that the housing (2) comprises a lateral surface (3) for receiving a pressing operation and a bottom surface (7) having...
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WO/2020/202961A1 |
This tuning-fork-type piezoelectric vibrator (1) comprises: a base (50); a tuning-fork-type piezoelectric vibrating element (10) that has a pair of vibrating arms (60a, 60b) and a pair of connection electrodes (86a, 86b); and a base memb...
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WO/2020/206332A1 |
The disclosure describes new apparatus, systems and methods utilizing magnetoelectric neural stimulators with tunable amplitude and waveform. Specific embodiments of the present disclosure include a magnetoelectric film, a magnetic field...
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WO/2020/202006A1 |
Methods of producing lead-free piezoelectric composites are described. The method can include adding a lead-free piezoelectric additive to a solution that includes a solvent and polymer solubilized therein. The solvent can have i) a boil...
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WO/2020/201266A1 |
Piezoelectric user interface arrangement comprises a voltage converter (103) for controllably generating voltage waveforms driving one or more piezoelectric elements (101). The voltage converter (103) has a control input (201). A control...
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WO/2020/204069A1 |
A power generation element (1) is provided with: a polymer fiber body (FB) formed by three-dimensionally depositing electrically chargeable non-piezoelectric polymer fibers; electrodes (121, 122); and a holding member (11). The polymer f...
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WO/2020/201922A1 |
Lead-free piezoelectric composites and methods of making and uses thereof are described. The lead-free piezoelectric composites have high flexibility and high piezoelectric properties.
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WO/2020/203771A1 |
Provided is a piezoelectric sensor that restrains the effects of a pressure-sensitive layer with respect to an electrical signal propagated through electrodes. This piezoelectric sensor 1 detects a pressure change from an organism presen...
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WO/2020/202962A1 |
A tuning fork type piezoelectric vibrator (1) is provided with: a tuning fork type piezoelectric vibration element (10) that has a basic part (50), a pair of vibration arm parts (60a, 60b), and a pair of connection electrodes (86a, 86b);...
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WO/2020/200986A1 |
The invention relates to a method for preparing a single-domain thin layer of ferroelectric material. The method comprises: implanting light species in a first face of a ferroelectric donor substrate in order to form a plane of weakness ...
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WO/2020/194026A1 |
The disclosed method of diffusion bonding of a lead zirconate titanate piezoelectric crystal to a metal wear plate, for the fabrication of an ultrasonic transducer operable at high temperatures and able to withstand repeated thermal cycl...
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WO/2020/195385A1 |
This micromirror device comprises first and second actuators, which are piezoelectric actuators comprising a piezoelectric element in which a lower electrode, a piezoelectric film, and an upper electrode are laminated on a vibration plat...
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WO/2020/194870A1 |
Disclosed is a transducer device that is configured to be able to extend the scope of uses thereof. This transducer device (1) is provided with: a transducer element (11); elastic bodies (12a, 12b) which clamp the transducer element (11)...
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WO/2020/196850A1 |
The present invention addresses the problem of providing: a piezoelectric film that has outstanding flexibility in high-temperature environments exceeding 50°C and demonstrates good flexibility even at normal temperatures; a layered pie...
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WO/2020/196807A1 |
The present invention addresses the problem of providing: a piezoelectric film that has superior flexibility under below-freezing environments and that exhibits required flexibility at ordinary temperatures; a laminated piezoelectric ele...
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WO/2020/190215A1 |
An apparatus includes a dielectric elastomer generator (DEG) and a priming circuit. The DEG generates electrical energy from elastic energy. The priming circuit provides voltage to prime the DEG and includes a piezoelectric generator cou...
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WO/2020/189397A1 |
The purpose of the present invention is to minimize the incidence of cracking in a functional layer while maintaining flexibility of a laminate. This laminate has a polymer substrate and a crystalline functional layer formed on a first s...
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WO/2020/189115A1 |
Provided is a composite substrate that can enhance stability of filter characteristics against temperature change. A composite substrate 1 is a composite substrate that is used for an electronic device. The composite substrate 1 is cha...
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WO/2020/190232A1 |
This invention is related to a piezoelectric material (1) having high electric generation capacity which has fiber feature, nano dimension, does not require metal support and polarization. The piezoelectric material (1) has a flexible st...
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WO/2020/189957A1 |
Disclosed are a piezoelectric speaker for employing a piezoelectric element having a through-hole, and a manufacturing method therefor. The piezoelectric speaker comprises: a piezoelectric element including a stack having one or more thr...
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WO/2020/189413A1 |
Provided is a configuration that can suppress leaks between electrodes sandwiching a piezoelectric layer (13) and can reduce deterioration in piezoelectric characteristics. A piezoelectric device (10A) has a first electrode (12), the pie...
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WO/2020/190211A1 |
A structural health monitoring method includes directly forming an acoustic transducer on a surface of a structure to be monitored; generating, by the acoustic transducer, an acoustic wave to apply stress loading to a region of interest ...
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WO/2020/181306A1 |
The invention relates to a measurement system having a flat measurement element receptacle (1) having substantially parallel cover surfaces (2), suitable for installation between torque- and/or force-transmitting machine parts, having at...
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WO/2020/184354A1 |
The present invention provides a low-profile ultrasonic wave generation device. A drive unit (10) has a piezoelectric material and an electrode formed on the surface of the piezoelectric material, and flexturally vibrates as a whole. A c...
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WO/2020/184243A1 |
A sodium potassium niobate-based piezoelectric ceramic composition having a transition temperature of –20–60°C in which phase transition between an orthorhombic crystal structure and a tetragonal crystal structure occurs. When the c...
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WO/2020/184242A1 |
A piezoelectric porcelain composition represented by the empirical formula AXBO3 and based on potassium sodium niobate which includes K and Na that account for 80% or more of the amount of the A-site elements and includes Nb that account...
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WO/2020/179353A1 |
The present invention addresses the problem of providing an electroacoustic transducer comprising a diaphragm and an exciter and having good flexibility. This problem is solved by providing a configuration having a diaphragm and an excit...
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WO/2020/179210A1 |
According to the present invention, a piezoelectric film having a single crystal structure is able to be formed, from various piezoelectric materials, on a film structure of the present invention. A film structure according to the presen...
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WO/2020/178320A1 |
The invention relates to a method for operating an electromechanical element, comprising the following steps: by actuating a first actuation section (A1), which can be deformed by an electrical voltage, with a first voltage signal (S10),...
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WO/2020/179731A1 |
Provided is a vibration sensor which can be attached to a curved surface subjected to measurement. An organic piezoelectric element (20) has a first surface and a second surface on the side opposite to the first surface, the organic piez...
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WO/2020/176847A1 |
A wearable haptic device and methods of operating a wearable haptic device to provide haptic stimulation to a user are described. The haptic device comprises a band configured to be worn around a portion of a user's body, circuitry coupl...
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WO/2020/176830A1 |
Systems and methods are provided that integrate control electronics with a wireless on-board module so that a conformal ultrasound device is a fully functional and self-contained system. Such systems employ integrated control electronics...
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WO/2020/176343A1 |
Single actuator audio haptic systems for producing haptic effects and audio effects are provided. Single actuator audio haptic systems may include flat form factor actuators including a resonant substrate, an actuator, and optionally, a ...
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WO/2020/175257A1 |
This dielectric elastomer power generation system is provided with: a power generation unit which includes a dielectric elastomer power generation element having a dielectric elastomer layer and a pair of electrode layers sandwiching the...
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WO/2020/173285A1 |
Disclosed are actuators containing an active layer comprising at least one metal hydroxide, the active layer having a first volume under no stimulation and a second volume either greater than or smaller than the first volume under stimul...
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WO/2020/175971A1 |
The present disclosure relates to a method of manufacturing a high purity AlxGa1-xN (0.5≤x≤1) piezoelectric thin film, a high purity AlxGa1-xN (0.5≤x≤1) piezoelectric thin film using same, and an apparatus using the thin film, th...
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WO/2020/174875A1 |
The present invention provides: a method for producing a ferroelectric polymer element in which a ferroelectric layer is formed flat; a ferroelectric polymer element; and a piezoelectric sensor. According to the present invention, one ...
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