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WO/2020/097829A1 |
The present disclosure provides a film bulk acoustic wave resonator and a manufacturing method therefor, and a filter. The film bulk acoustic wave resonator comprises: a substrate; a piezoelectric stack structure formed on the substrate,...
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WO/2020/100825A1 |
This vibration device is provided with a vibration unit having a piezoelectric element, and a wiring member electrically connected to the piezoelectric element. The piezoelectric element has a piezoelectric element body, an internal elec...
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WO/2020/100192A1 |
According to an embodiment of this invention, a sensor includes first and second structures and a detection unit. The first structure includes a support part and first and second deformable portions. The first deformable portion is suppo...
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WO/2020/095812A1 |
The purpose of the present invention is to provide a laminated piezoelectric element (10) capable of preventing short-circuit in adjacent piezoelectric films (12) and an electro-acoustic transducer using the laminated piezoelectric eleme...
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WO/2020/095649A1 |
According to the present invention, a sound absorption material (130) is provided over a first main surface (121) and a circumferential surface (123) of a piezoelectric element (120) so as to cover the first main surface (121) and the ci...
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WO/2020/095930A1 |
The present invention addresses the problem of providing an ultrasound sensor enabling easy formation of a 3-dimensional curving shape. An ultrasound sensor 1 according to an aspect of the present invention is provided with: a support me...
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WO/2020/090525A1 |
This ultrasound emission device has: a generation unit for generating ultrasonic waves to an object; and a sac in which a liquid is sealed such that the liquid is located closer to the object than the generation unit is. The generation u...
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WO/2020/084420A1 |
A component of a bone conduction device, such as a passive transcutaneous bone conduction device or an active transcutaneous bone conduction device, or a percutaneous bone conduction device, used to evoke a hearing percept comprising a h...
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WO/2020/085390A1 |
The present invention addresses the problem of providing an ultrasonic sensor in which it is possible to easily raise sensitivity. An ultrasonic sensor (1) according to one embodiment of the present invention comprises a base (10) and a ...
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WO/2020/080382A1 |
The present invention addresses the problem of providing a piezoelectric film having good piezoelectricity. The problem can be solved by a piezoelectric film composed of a vinylidene fluoride/tetrafluoroethylene copolymer film and having...
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WO/2020/079738A1 |
The present invention provides a speaker device which generates a sound in a frequency band beyond the audio frequency band and is small and light. Provided is a speaker device comprising: a first piezo actuator which converts a first fr...
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WO/2020/076640A1 |
The present disclosure relates to compact hearing aids, components thereof, and support systems therefor, as well as methods of insertion and removal thereof. The compact hearing aids generally include a sensor, such as a microphone, an ...
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WO/2020/064863A2 |
An interior component of a vehicle comprises a carrier having a front face directed toward a passenger compartment of the vehicle and an opposite rear face; a speaker including an at least partially transparent diaphragm and a transducer...
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WO/2020/065388A1 |
An ultrasonic tonometer, which measures an intraocular pressure of a subject eye using an ultrasonic wave, has an ultrasonic actuator including an ultrasonic element that generates an ultrasonic wave and a sonotrode that propagates the u...
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WO/2020/060078A1 |
The present invention relates to a fan using a speaker. When the speaker is waterproofed and sparse/dense waves generated by the speaker are made to be jetted through a jetting port in water, a compressed dense part, together with impact...
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WO/2020/055566A1 |
A transducer supported by the eardrum provides a piezoelectric material exchanging energy with the eardrum through a nanoscale membrane, the latter serving to boost the coupling between the piezoelectric material and the eardrum
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WO/2020/051225A1 |
An acoustic transducer includes a first flexible structure having a top surface and a bottom surface. A transducer is attached to the top surface of the first flexible structure, wherein the transducer causes deformation of the first fle...
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WO/2020/048371A1 |
Disclosed is a bone-conduction sound transmission technology. The technology can be used for manufacturing a miniaturized and lightweight bone-conduction sound transmission device. Such a device is worn in a specific area of the peripher...
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WO/2020/050946A1 |
A nozzle cap includes a cap body, the cap body defining a cap axis extending from a first body end of the cap body to a second body end of the cap body; and a vibration sensor attached to the cap body, the vibration sensor defining a sen...
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WO/2020/045892A1 |
The present invention relates to a clothes-processing device comprising: a cabinet comprising a body, a body front surface fixed to the body and forming the front surface, and an introduction opening formed through the body front surface...
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WO/2020/045351A1 |
A bone-conduction microphone of the present disclosure is provided with a housing with an opening part, a microphone pad, an element support member, a piezoelectric element, and a drive plate. The microphone pad is formed in the shape of...
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WO/2020/017511A1 |
An ultrasonic sensor according to the present disclosure is provided with: a cylindrical case; an acoustic matching part inserted in an opening on an end side of the case; and a piezoelectric element adhered to the inner surface of the a...
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WO/2020/017478A1 |
[Problem] To provide a porous piezoelectric material molded body which has high utility as a constituent member of a piezoelectric vibrator suitable for, in particular, a probe for an ultrasound medical diagnostic device. [Solution] A po...
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WO/2020/004097A1 |
This ultrasonic sensor comprises: a metal member (4) having a plate part (4a); a piezoelectric element (2) joined to a first surface (4b) on one side of the plate part (4a); a first acoustic matching layer (5) adhered to a second surface...
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WO/2020/002900A1 |
A system includes a panel extending in a plane, an actuator attached to a surface of the panel, and an electronic control module to activate the actuator to cause vibration of the panel. The actuator includes: a plate to create a force t...
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WO/2020/002804A1 |
The invention relates to a motor vehicle windscreen comprising two transparent substrates (2, 3) that are connected together by an insert (4) made of viscoelastic material, at least one of the substrates (2, 3) comprising, on its surface...
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WO/2019/235674A1 |
The present invention relates to a speaker driver and a method for operating same, the speaker driver comprising: an amplifier unit which outputs a pulse voltage amplifying an input signal on the basis of a supply voltage in order to dri...
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WO/2019/234437A1 |
A signal processing device (1) includes a first medium (2), a second medium (3) and a lipid interface (4) arranged between the first medium and the second medium. The lipid interface includes multiple lipid molecules (5). An input transd...
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WO/2019/234969A1 |
Provided is an acoustic matching device with which it is possible to obtain a broadband acoustic matching characteristic between a wide range of different types of materials having various specific acoustic impedances. An acoustic matchi...
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WO/2019/234854A1 |
An ultrasonic transducer according to the present invention is provided with: an elastic plate which includes a first surface and a second surface respectively facing one side and the other side of the elastic plate in a thickness direct...
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WO/2019/211599A1 |
Disclosed is a piezoelectric transducer which is mounted to a target in use, comprising: a piezoelectric element having a front face which faces the target, and an opposing rear face which faces away from the target, wherein the piezoele...
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WO/2019/208118A1 |
This backing material for ultrasonic probes substantially comprises porous amorphous carbon.
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WO/2019/197149A1 |
The invention relates to a sound transducer for sending and/or receiving underwater sound signals, wherein the sound transducer comprises at least two sound transducer shells, each comprising a piezoceramic material and each being electr...
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WO/2019/197268A1 |
The invention relates to a sound transducer (10d), which comprises a diaphragm cup (20), a transducer element and a housing (40). The diaphragm cup (20) has a diaphragm (5) and a wall. The diaphragm (5), the wall of the diaphragm cup (20...
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WO/2019/186324A1 |
A Piezo crystal 100 for an ultrasonic transducer is disclosed. The Piezo crystal 100 generates multiple resonant frequencies spanning over defined sonic and ultrasound ranges. The Piezo crystal 100 comprises a metal substrate disc 102 co...
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WO/2019/186304A1 |
A method for generating an energy wavefront is disclosed. The method includes receiving, at a transducer device, a combined ultrasonic and sonic waveform signal; creating a combined ultrasonic and sonic wave based on the combined ultraso...
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WO/2019/186321A1 |
A wave shaping and scattering unit for an ultrasonic transducer to effectively shape and scatter an incoming wavefront is disclosed. The wave shaping and scattering unit comprises a wave slicer grill 100 to shape the incoming wavefront i...
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WO/2019/187547A1 |
The present invention is an audio device that has an acoustic sheet which is a thin film material having capacitive characteristics and which has a curved shape. The acoustic sheet has a first region that is actively driven by an input s...
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WO/2019/186305A1 |
A transducer assembly for generating a multi-directional energy wavefront is disclosed, comprising: a transducer device configured to convert a combined ultrasonic and sonic waveform signal into a combined ultrasonic and sonic wave; a fi...
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WO/2019/188426A1 |
Provided is a resin material suitable as an acoustic wave probe lens material in which an acoustic impedance close to that of a living body can be achieved, acoustic wave attenuation can be reduced even at high frequencies (e.g., 10 MHz)...
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WO/2019/174482A1 |
The present invention provides a backlight module and a manufacturing method therefor, and a display device. The backlight module comprises: a light guide plate having a first surface and a second surface that are opposite to each other;...
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WO/2019/176233A1 |
According to the present invention, a second laminate comprises a flexible wiring sheet and a laminated element array supported thereby. A ground film is bonded to a living body side of the laminated element array, thereby forming a stru...
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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...
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WO/2019/164315A1 |
An electronic device and method are disclosed. The electronic device includes a first and second housing movable relative to each other. The second housing supports a flexible display which may be at least partially exposed to an exterio...
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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/2019/150953A1 |
This ultrasonic probe: holds a transmitting transducer at an angle at which a longitudinal wave transmitted from the transmitting transducer enters an object under inspection as a transverse wave, and at which a creeping wave which propa...
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WO/2019/144370A1 |
A MEMS piezoelectric speaker and a preparation method therefor. The MEMS piezoelectric speaker comprises: a substrate (10), the central region thereof being a hollow region; an organic vibration film layer (50), located above the hollow ...
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WO/2019/144369A1 |
An MEMS piezoelectric loudspeaker with a soft support structure and a preparation method therefor. The MEMS piezoelectric loudspeaker comprises: a substrate (10), wherein a central region is a hollow region; a composite dielectric film l...
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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/2019/142547A1 |
The purpose of the present invention is to provide: an acoustic lens which is for propagating a sound wave having a wavelength λ of 100 μm or less and can exhibit excellent acoustic characteristics depending on the wavelength λ of the...
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