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Matches 51 - 100 out of 52,087

Document Document Title
WO/2019/193323A1
There is provided an energy harvester for harvesting energy from broadband ambient vibrations comprising: a bi-stable oscillator, a subsidiary oscillator mechanically coupled to the bi-stable oscillator; wherein the bi-stable oscillator ...  
WO/2019/173375A3
Disclosed herein is a composition and a method for energy harvesting and the autonomous detection of structural failure. This method can be used to monitor, for example, the structural integrity of unmanned aircraft systems.  
WO/2019/186265A1
The invention relates to a method for manufacturing a substrate for a radiofrequency filter by assembling a piezoelectric layer on a support substrate via an electrically insulating layer, characterised in that it comprises the steps of:...  
WO/2019/186053A1
The invention relates to a method for manufacturing a substrate (7) for a radiofrequency device by assembling a piezoelectric layer (3) on a support substrate (1) by means of an electrically insulating layer, the piezoelectric layer (3) ...  
WO/2019/186011A1
The invention relates to a hybrid structure (10) for a surface acoustic wave device, comprising a useful layer (1) of piezoelectric material, joined to a support substrate (2) having a lower coefficient of thermal expansion than the usef...  
WO/2019/188325A1
[Problem] To increase the bond strength between a support substrate comprising a polycrystalline ceramic material or a single crystal material and a piezoelectric single crystal substrate; and to increase the Q value. [Solution] A joint ...  
WO/2019/166805A3
A method for producing an ultrasonic transducer or ultrasonic transducer array, the method comprising providing or depositing a layer of piezoelectric material on a substrate. The piezoelectric material is a doped, co-deposited or alloye...  
WO/2019/191208A1
Disclosed herein integrated plasmonic-ferroelectric materials and methods of making and methods of use thereof. The integrated plasmonic-ferroelectric materials comprise a ferroelectric particle and a plurality of plasmonic particles dis...  
WO/2019/185094A1
The invention firstly relates to a magnetic field sensor assembly (03) for measuring a torque on a machine element (01) extending along an axis, using the inverse magnetostrictive effect. The machine element (01) has at least two magneti...  
WO/2019/191330A1
A dual frequency ultrasonic and sonic actuator with constrained impact mass is presented. According to one aspect, displacement of the impact mass is constrained by cavity to which ultrasonic stress from the tip of a horn is applied. Acc...  
WO/2019/190887A1
The disclosed optical lens assemblies may include a pre-strained deformable element that exhibits a non-uniform mechanical strain or stress profile, a structural support element coupled to the pre-strained deformable element, and a defor...  
WO/2019/186032A1
The invention relates to a method for transferring a piezoelectric layer (3) onto a support substrate (6), comprising: - providing a donor substrate (40) consisting of a heterostructure (4) comprising a piezoelectric substrate (3) bonded...  
WO/2019/181087A1
[Problem] In bonding a piezoelectric material substrate formed of lithium tantalate, etc. to a supporting substrate via a silicon oxide layer, to prevent separation at the interface between silicon oxide constituting the bonding layer an...  
WO/2019/182771A1
A transducer assembly (700) includes: a microelectromechanical systems (MEMS) die (702) including a plurality of piezoelectric elements (720); a complementary metal-oxide-semiconductor (CMOS) die (704) electrically coupled to the MEMS di...  
WO/2019/181977A1
A piezoelectric composition including a composite oxide having a perovskite structure represented by the general formula ABO3, copper, and at least one element selected from the group consisting of chromium, nickel, and zinc, said piezoe...  
WO/2019/180055A1
An actuator device comprises an actuator member (62) which incorporates an electroactive polymer material. A controller (72) controls supply of an actuation signal and a superposed AC signal, which has the effect of inducing heating. The...  
WO/2019/183431A1
An electroactive device may include (1) an electroactive polymer element having a first surface and a second surface opposite the first surface, the electroactive polymer element comprising a nanovoided polymer material, (2) a primary el...  
WO/2019/181656A1
The present invention is a liquid composition for forming a piezoelectric film comprising a metal oxide that contains at least Bi, Na, and Ti. The Na feedstock is an Na alkoxide, and the Ti feedstock is a Ti alkoxide, said composition co...  
WO/2019/181407A1
A piezoelectric element 1 according to the present invention comprises: a shim 10; a first conductive paste 12 which is provided on the shim 10; a piezoelectric body 14 which is provided on the first conductive paste 12; a second conduct...  
WO/2019/182450A1
The disclosed energy harvesting system (100) comprises a bendable metal plate (12) connected to a piezoelectric plate (11). A pocket (HI) is formed at a central part (12c) of the metal plate opposite the piezoelectric plate. A force rece...  
WO/2019/180586A1
The disclosure concerns filled a polymer composite comprising a piezoelectric filler and a polymer resin. The composite may exhibit a piezoelectric coefficient d33 of greater than 30 pC/N when measured according to the Berlincourt Method...  
WO/2019/175385A1
An electroactive material actuator is clamped along one edge (12) and has a pre-bend about a first axis (21) which is parallel to said edge and/or about a second axis which is perpendicular to said edge. The actuator expands with expansi...  
WO/2019/177803A1
An ultrasound transducer with at least one piezoelectric element configured to convert received acoustic signals into an electric potential, a shield connectable to ground and overlying the at least one piezoelectric element through whic...  
WO/2019/175721A1
The present invention relates to the preparation of non-textured polycrystalline piezoceramic exhibiting ultrahigh electrostrain by solid-state sintering. The pseudo-ternary ferroelectric alloy system BiFeO3-PbTiO3-LaFeO3 exhibiting elec...  
WO/2019/175178A1
The present invention relates to a device for producing a non-thermal atmospheric pressure plasma, comprising a piezoelectric transformer (1), a control circuit (11), which is designed to apply an input signal to the piezoelectric transf...  
WO/2019/175236A1
Ferroelectric material comprising a mixed crystal comprising AlN and at least one transition metal nitride. The proportion of the transition metal nitride is chosen such that a direction of an initial or spontaneous polarity of the ferro...  
WO/2019/172064A1
This piezoelectric actuator comprises: a layered body including a plurality of flat electrodes and a plurality of piezoelectric ceramic layers, which have been layered; a low-potential external electrode provided on one of the end faces ...  
WO/2019/170793A1
The invention relates to a method and an actuator system for determining and applying a voltage to a piezoelectric actuator (PEA) to achieve a given setpoint displacement. The method involves determining a relation dcal(V) between a PEA ...  
WO/2019/171650A1
Provided are a piezoelectric body film capable of suppressing a drop in the piezoelectric constant d31, a piezoelectric body film production method, and a piezoelectric body device. This piezoelectric body film includes, as a piezoelectr...  
WO/2019/172738A1
The foot is one of the most complex parts of the body, comprising 26 bones joined by numerous joints, muscles, tendons and ligaments. The foot is prone to suffer a lot of stress, so foot problems can cause pain, inflammation or injuries ...  
WO/2019/171030A1
A method includes determining, for a piezoelectric cantilever-type transducer of a distributed mode loudspeaker adapted to cause vibration of a load, a subset of frequencies from a range of frequencies at which to output vibrations, in w...  
WO/2019/166242A1
The invention relates to a multilayer component (10) with an external contact, comprising a main part (100) with first and second inner electrodes (110, 120) and with an outer contact (200) for externally contacting the inner electrodes ...  
WO/2019/166805A2
A method for producing an ultrasonic transducer or ultrasonic transducer array, the method comprising providing or depositing a layer of piezoelectric material on a substrate. The piezoelectric material is a doped, co-deposited or alloye...  
WO/2019/166285A1
A method for forming an aluminum nitride layer (310, 320) comprises the provision of a substrate (100) and the forming of a patterned metal nitride layer (110). A bottom electrode metal layer (210) is formed on the the exposed portions (...  
WO/2019/166815A1
Described herein is a method for manufacturing, or for use in manufacturing a flexible ultrasonic transducer array and the resultant ultrasonic transducer array. The method includes providing a layer of piezoelectric material onto a foil...  
WO/2019/167805A1
A vibration device 1 is provided with: a bimorph-type piezoelectric element 10 that has first and second main surfaces 11a, 11b opposed to each other; and a vibration member 60 that is joined to the second main surface 11b of the piezoel...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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,...  
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,...  
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...  
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...  

Matches 51 - 100 out of 52,087