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WO/2019/163842A1 |
This elastic wave element is provided with: an IDT electrode 31 that is provided with a plurality of electrode fingers 32 and excites an elastic surface wave; a first substrate 10 that has an upper surface on which the IDT electrode 31 i...
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WO/2019/163740A1 |
[Problem] To provide a biological vibration signal detection device comprising a more reliable connection part. [Solution] The detection device comprises: a sheet-like vibration sensor body comprising a sensor material layer containing a...
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WO/2019/162065A1 |
An interventional device (110) includes an elongate shaft and a transducer strip (112). The transducer strip includes a first edge and an opposing second edge. The first edge and the second edge are separated by a width dimension, and th...
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WO/2019/164829A1 |
A method of manufacture and resulting structure for a single crystal electronic device with an enhanced strain interface region. The method of manufacture can include forming a nucleation layer overlying a substrate and forming a first a...
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WO/2019/163494A1 |
Provided is a piezoelectric film (1) containing an AlN crystal and a first element and a second element that have been added to the AlN crystal. The first element is an element of which the ion radius is greater than that of Al. The seco...
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WO/2019/159959A1 |
Provided is a piezoelectric element-driven valve 100 configured to be able to control a fluid having a temperature exceeding a use range temperature of a piezoelectric actuator. The piezoelectric element-driven valve 100 comprises: a pie...
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WO/2019/160404A1 |
Energy harvester comprising a mass that is subject to environmental forces for bringing it into the status of a moving mass, and means linked to the mass for converting and storing of energy embodied in the moving mass, which means are a...
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WO/2019/157556A1 |
An array of piezoelectric actuation members fabricated such that a voltage applied to any one piezoelectric actuation member results in a change of dimension of that piezoelectric actuation member, the piezoelectric actuation members ext...
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WO/2019/159389A1 |
This vibration actuator is for generating vibration in a plate-like panel such as an operation panel by using an elongation/contraction element such as a piezoelectric element, wherein both ends 2a, 2c of a vibration unit 2, in which a c...
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WO/2019/155120A1 |
The invention relates to a microelectromechanical resonator, comprising a support structure, a resonator element suspended to the support structure, the resonator element comprising a plurality of sub-elements, and an actuator for exciti...
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WO/2019/154804A1 |
An implantable device (12) comprises an EAP actuator and a sensing means. The sensing means is configured to monitor a force external to the device acting in a direction either with or counter to a direction of actuation of the actuator,...
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WO/2019/155663A1 |
This MEMS device is provided with: a piezoelectric film; a first electrode and a second electrode, by which the piezoelectric film is sandwiched; a protective film which is arranged so as to cover at least a part of the second electrode,...
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WO/2019/154664A1 |
The device as defined by the claims comprises electroactive polymer actuators (30) each of which is addressed by two addressing lines for selecting the electroactive polymer actuator and a current direction drive mode. A first circuit (4...
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WO/2019/157038A1 |
A method of measuring dissociation of the biomolecular bonds in one or multiple sample wells using super-resolution force spectroscopy (SURFS). SURFS utilizes precise ultrasound radiation to exert an acoustic radiation force on the biomo...
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WO/2019/155119A1 |
The invention concerns a microelectromechanical resonator comprising a support structure, a resonator element suspended to the support structure, and an actuator for exciting the resonator element to a resonance mode. According to the in...
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WO/2019/156863A1 |
A device, method and process to induce and amplify electrical energy through resonance and vibration, the device producing voltage and current generation with amplification within electrical motors, primarily DC motors, by vibration of t...
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WO/2019/149418A1 |
The invention relates to an ultrasonic transducer with a piezoceramic and a method for producing an ultrasonic transducer of this kind. The invention is directed at providing an ultrasonic transducer with outstanding media resistance and...
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WO/2019/150992A1 |
On the inner surface of a package in which two piezoelectric filter elements are housed, a shield electrode facing both electrodes of an input electrode and an output electrode of a piezoelectric substrate of each of the piezoelectric fi...
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WO/2019/150115A1 |
A method of poling piezoelectric elements of an actuator comprises applying an electric pulse heating waveform to the piezoelectric element(s) in order to increase the temperature thereof to a poling temperature (S202), applying an elect...
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WO/2019/150113A1 |
There is provided a vibrational energy harvester comprising: a frame, a flexure assembly coupled to the frame, the flexure assembly comprising a flexure configured to flex in a first direction relative to the frame and a mass fixed to th...
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WO/2019/150850A1 |
This transducer (10) comprises: a piezoelectric element (20) having a piezoelectric layer (21) containing an elastomer and piezoelectric particles, electrode layers (22a, 22b) disposed so as to sandwich the piezoelectric layer (21), and ...
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WO/2019/151172A1 |
This drive device (10) is provided with a voltage regulating circuit (11), a drive signal generating circuit (12), a current limiting circuit (13), and a voltage control circuit (14). The voltage regulating circuit (11) regulates a power...
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WO/2019/147777A1 |
A multi-axis MEMS assembly includes a micro-electrical-mechanical system (MEMS) actuator configured to provide linear three-axis movement. The micro-electrical-mechanical system (MEMS) actuator includes: an in-plane MEMS actuator, and an...
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WO/2019/141378A1 |
An apparatus includes a first support member, a second support member and one or more electro-active polymer members between the first support member and the second support. The one or more electro-active polymer members include a first ...
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WO/2019/141961A1 |
The present invention relates to a method of preparing a thin film element which is a dielectric exhibiting piezoelectric properties comprising a bismuth-based solid solution ceramic material as well as uses thereof. In one aspect, the p...
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WO/2019/141952A1 |
The invention relates to a method for designing a device comprising a plurality of micromachined elements, each one comprising a flexible membrane, the elements being arranged in a plane according to a determined topology, the design met...
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WO/2019/142612A1 |
A power generation device is used, the power generation device comprising a laminate of a first magnetostrictive material having a positive magnetostriction constant and a second magnetostrictive material having a negative magnetostricti...
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WO/2019/140484A1 |
Apparatus for agglomerating particulate matter entrained in a fluid, the apparatus including: an inlet for receiving the fluid; an outlet for releasing the fluid; at least one a conduit in fluid communication with the inlet and the outle...
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WO/2019/137705A1 |
The invention relates to a method for producing a micromechanical layer structure, having the steps of: - providing a first protective layer, said first protective layer being structured with at least one access which is filled with a sa...
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WO/2019/140209A1 |
An electrically-controllable shape morphing device comprising a multi-layer structure including a plurality of elastomer layers and a plurality of electrode layers formed between the plurality of elastomer layers. A geometry and/or size ...
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WO/2019/139100A1 |
The present invention provides a highly productive method for producing alkali niobate/tantalate alignment films, the method using hydrothermal synthesis and enabling the production of thicker films. The present invention also provides a...
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WO/2019/139575A1 |
An apparatus is provided which comprises: a magnet; a first structure comprising spin orbit material, wherein a portion of the structure is adjacent to the magnet; a second structure comprising piezo-electric material; and a conductor co...
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WO/2019/138799A1 |
This piezoelectric element unit 1 is provided with: a piezoelectric element 2 which has a function of converting a force into a voltage and a function of converting a voltage into a force; and a wiring board 3 which is electrically conne...
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WO/2019/140371A1 |
A pre-loaded piezoelectric stack actuator (10) comprising a stack (12) of piezoelectric material. Caps (24, 26) are coupled at opposed ends of the stack. Each of the caps includes projecting fingers (25A, 25B). Insulating plates (20) are...
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WO/2019/135900A1 |
A negative pressure wound therapy device includes at least one piezoelectric pump and a control circuit. The control circuit is configured to generate a first control signal to control operation of the at least one piezoelectric pump, th...
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WO/2019/135911A1 |
Piezoelectric devices and methods for forming the piezoelectric devices are provided. The piezoelectric device includes a piezoelectric film disposed on a substrate, where the piezoelectric film contains formamidinium tin iodide and one ...
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WO/2019/130773A1 |
A vibration device 1 is provided with: a piezoelectric vibrator 3 having a piezoelectric element 13 and a vibration plate 15 which has a pair of main surfaces 15a, 15b facing each other, and which has the piezoelectric element 13 joined ...
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WO/2019/130852A1 |
[Problem] To make it possible to suppress characteristic deterioration of an assembly when joining a piezoelectric material substrate consisting of a material such as lithium niobate, and a support substrate provided with a silicon oxide...
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WO/2019/130895A1 |
[Problem] To improve the characteristics of a joined body when a piezoelectric material substrate comprising lithium niobate, etc., and a support substrate provided with a silicon oxide layer are joined. [Solution] A joined body 8, 8A, p...
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WO/2019/130862A1 |
Provided is a power generation device having: a magnetostrictive element formed of a magnetostrictive material; a coil into which the magnetostrictive element is inserted; a frame having the magnetostrictive element disposed thereon and ...
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WO/2019/129979A1 |
The invention relates to a method for producing an adjustable bulk acoustic wave resonator comprising a transducer stack (E1) and a tuning stack (E2). According to the invention, transducer stack (E1) comprises two defined electrodes (4,...
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WO/2019/130857A1 |
[Problem] To suppress characteristic deterioration of an assembly when joining a piezoelectric material substrate consisting of a material selected from the group consisting of lithium niobate, lithium tantalate, and lithium niobate-lith...
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WO/2019/131135A1 |
According to the present disclosure, a piezoelectric element the resonance point of which is shifted to the low-pitched sound side is provided. The inventors newly found that the resonant point of a piezoelectric element 1 is moved to th...
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WO/2019/132368A1 |
A piezoelectric element for a speaker and a manufacturing method therefor are provided. The piezoelectric element for a speaker comprises: a plurality of piezoelectric ceramic layers stacked in the thickness direction thereof; and a plur...
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WO/2019/126729A1 |
The teachings of the present disclosure enable the manufacture of one or more piezoelectric micromachined ultrasonic transducers (PMUTs) having a resonant frequency of a specific target value and/or substantially matched resonant frequen...
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WO/2019/122402A1 |
The first object of the invention is directed to a piezoelectric device (10) shaped as a tridimensional object with at least two surfaces, wherein said piezoelectric device (10) comprises a first set of two or more electrodes (8a, 8b). S...
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WO/2019/119178A1 |
The present invention is applicable to the technical field of ultrasonic transduction, and discloses a mode conversion ultrasonic transducer and a method for manufacturing same. The mode conversion ultrasonic transducer comprises a housi...
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WO/2019/122465A1 |
The invention relates to a method for obtaining ceramic coatings formed by lead zirconate titanate (PZT), comprising the steps of: obtaining a PZT ink; depositing the PZT ink over a substrate; sintering the PZT ink by means of a laser tr...
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WO/2019/122262A1 |
Haptic system including an electroactive polymer composite The present invention concerns a haptic system including an electroactive polymer composite layer comprising core-shell particles and at least one polymer and electrodes for the ...
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WO/2019/122162A1 |
The invention reduces the stresses that builds up when two large area surfaces are bonded together by a wafer bonding process. This is done by structuring one of the two surfaces to be bonded together by structuring lines to partition th...
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