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WO/2023/200003A1 |
A coating layer having an ultraviolet-resistant effect and impact resistance is provided on the surface of a resin film (8) to form a protective film, which is bonded to the surface of an ultrasonic sensor, thereby protecting the ultraso...
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WO/2023/197290A1 |
Disclosed in the embodiments of the present application are a driving device and an acoustic output device comprising the same. The driving device comprises one or more driving units, each driving unit is provided with a beam-shaped stru...
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WO/2023/195179A1 |
Provided is an ultrasonic wave radiation unit wherein erosion and cleaning irregularity which occur in a vibration plate can be reduced, and the strength of bonding of an ultrasonic transducer to the vibration plate can be increased. Thi...
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WO/2023/193191A1 |
Embodiments of the present description provide an acoustic output device, comprising: a first vibration element, a second vibration element, and a piezoelectric element. In response to an electrical signal, the piezoelectric element driv...
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WO/2023/193186A1 |
One or more embodiments of the present description relate to a vibration apparatus, comprising: a mass element; one or more piezoelectric elements, the one or more piezoelectric elements being configured to generate vibration on the basi...
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WO/2023/188929A1 |
Provided are a piezoelectric film, a piezoelectric element, and an electroacoustic transducer that are capable of suppressing the occurrence of poor appearance when stored for a long time in a wound state. A piezoelectric film having a...
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WO/2023/184515A1 |
Disclosed in embodiments of the present description is an acoustic device. The device comprises a piezoelectric assembly, an electrode and a vibration assembly. The piezoelectric assembly vibrates under the action of a driving voltage; t...
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WO/2023/190834A1 |
The ultrasonic wave unit according to the present invention comprises a piezoelectric element having an ultrasonic wave generation surface for generating ultrasonic waves and a transmissive diffraction portion which is positioned on the ...
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WO/2023/188966A1 |
Provided are a piezoelectric film, a piezoelectric element, and an electroacoustic transducer that are capable of suppressing acoustic pressure reduction even after long-term storage. A piezoelectric film having a piezoelectric layer c...
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WO/2023/190097A1 |
Provided are: a ceramic-based acoustic matching layer material which is easy to adjust acoustic impedance; a method for producing same; and use of the ceramic-based acoustic matching layer material. This ceramic-based acoustic matching...
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WO/2023/181699A1 |
Provided is an electroacoustic transducer that can obtain a high sound pressure when the electroacoustic transducer is configured by affixing a piezoelectric element to a diaphragm. This electroacoustic transducer comprises: a diaphrag...
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WO/2023/182088A1 |
A display device (100) comprises: a display unit including a flat panel that displays images; an output unit that is disposed on the back side of the flat panel and outputs sound by driving a plurality of vibration exciters that vibrate ...
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WO/2023/182068A1 |
A display device (100) comprises: a display unit that includes a flat panel for displaying a video; and an output unit that uses driving of a plurality of excitation apparatuses and two left/right cone-shaped speakers to output audio, sa...
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WO/2023/182067A1 |
A display device (100) comprising: a display unit which includes a flat panel for displaying video; and an output unit which is arranged on a rear surface of the flat panel and outputs sound by driving a plurality of exciters for vibrati...
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WO/2023/173355A1 |
Provided in the present specification is an acoustic output apparatus, the acoustic output apparatus comprising a vibration assembly and a mass element. The vibration assembly can comprise a piezoelectric structure and a vibration elemen...
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WO/2023/176190A1 |
A light-emitting device (3) according to the present disclosure comprises a substrate (10), a frame (20), and an actuator (30). The substrate (10) has a plurality of light-emitting elements (11) disposed side by side on a first surface (...
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WO/2023/176271A1 |
A cantilever is formed that includes: a vibrating membrane, a connection part connected to a support body being present in part of the outer circumferential edge of the vibrating membrane; and a portion of a piezoelectric element that is...
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WO/2023/177057A1 |
A multi-frequency capacitive micromachined ultrasonic transducer and a manufacturing method therefor are disclosed. The ultrasonic transducer according to various embodiments may comprise: a first transducer cell for outputting an ultras...
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WO/2023/165356A1 |
The present application relates to the technical field of acoustoelectronics. Provided in the present application are a piezoelectric MEMS microphone and an electronic device, which can increase the length of a cantilever in a certain sp...
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WO/2023/168361A1 |
Systems, devices, methods, and implementations related to contact detection are described herein. In one aspect, a system is provided. The system includes a first piezoelectric microelectromechanical systems (MEMS) transducer coupled to ...
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WO/2023/166486A1 |
A device including a housing and a piezoelectric component, wherein the piezoelectric component is supported in the housing via at least one curved surface of a support element. In an embodiment the device is an active transcutaneous bon...
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WO/2023/166892A1 |
Provided is an electroacoustic transducer formed by sticking a piezoelectric element to a vibration plate, wherein even when the vibration plate is flexible, it is possible to obtain a high sound pressure. This electroacoustic transducer...
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WO/2023/165890A1 |
The invention relates to a piezoelectric component (1) comprising a piezoelectric layer (4) comprising a polycrystalline piezoelectric ceramic material having a coercivity of at least 1.8 kV/mm and a support member (2) to which the piezo...
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WO/2023/162861A1 |
This ultrasonic projection device 1 for projecting ultrasonic waves comprises a first block body 2, a second block body 3, and a piezoelectric unit 4 clamped by the first block body 2 and the second block body 3. A vibration plate 6b is ...
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WO/2023/161469A1 |
One aspect of the invention relates to a MEMS converter which comprises a vibratable membrane for generating or receiving pressure waves in a vertical emission direction. The vibratable membrane is held by a support and has vertical sect...
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WO/2023/164667A2 |
Aspects include piezoelectric acoustic transducers and systems for acoustic transduction. In some aspects, an acoustic transducer is structured with a silicon substrate having a top surface and a bottom surface, where the top surface has...
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WO/2023/157668A1 |
This sound output device (40) comprises a member (11) being vibrated that outputs a sound to a space, a vibration mechanism (12) that vibrates the member (11) being vibrated, and a transmission member (15) that transmits the vibration of...
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WO/2023/157636A1 |
The present invention addresses the problem of providing: a piezoelectric film which can inhibit heat generation even if continuously driven; and a laminated piezoelectric element formed by laminating the piezoelectric film. The problem ...
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WO/2023/157848A1 |
This active noise control system (500) comprises a structure (80), a first piezoelectric speaker (10A), and a second piezoelectric speaker (10B). The structure (80) has a front surface (80a) and a rear surface (80b). The first piezoelect...
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WO/2023/157532A1 |
Provided are: a piezoelectric element in which a piezoelectric film is layered, which has sufficient resistance with respect to repeated bending at a small bend radius, and from which sufficient output (elasticity) can be obtained; and a...
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WO/2023/153271A1 |
Provided is a detection device having a highly reliable ultrasonic conversion element with low cost. The detection device comprises a laminated body and a frame layer that is laminated on at least one of a first surface and second surfac...
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WO/2023/153280A1 |
The present invention addresses the problem of providing: a piezoelectric film having an electrode layer on both surfaces of a piezoelectric layer, and a protective layer provided on the surface of each electrode layer, wherein a lead wi...
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WO/2023/153126A1 |
The present invention provides a piezoelectric element and an electroacoustic transducer that can be made thinner while ensuring piezoelectric performance in the piezoelectric element. The piezoelectric element includes: a common electro...
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WO/2023/153173A1 |
The present invention addresses the problem of providing: a piezoelectric film which is sufficiently durable against repeated sliding; and a laminated piezoelectric element formed by laminating the piezoelectric film. The problem can be ...
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WO/2023/149073A1 |
Provided is a piezoelectric device having excellent flexibility in both normal temperature and sub-zero environments. The piezoelectric device is provided with: a piezoelectric film including a piezoelectric layer containing piezoelectri...
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WO/2023/149233A1 |
The present invention addresses the problem of providing: a piezoelectric film that can achieve suppression of heat generation, space saving, ease of wiring routing, and simplification; and a laminated piezoelectric element in which said...
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WO/2023/148651A1 |
An apparatus including an actuator, such as a piezoelectric actuator, and a first tissue interface device and a second tissue interface device spaced away from the first tissue fixation device, wherein the apparatus is at least a partial...
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WO/2023/149075A1 |
Provided is a piezoelectric film capable of realizing higher conversion efficiency between electricity and pressure. This piezoelectric film includes: a piezoelectric layer containing piezoelectric particles and dielectric particles in a...
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WO/2023/144366A1 |
The present invention relates to a vibration sensor comprising a pressure detecting arrangement for detecting generated pressure variations, wherein the pressure detecting arrangement comprises a MEMS die and a signal processor, wherein ...
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WO/2023/144365A1 |
The present invention relates to vibration sensor comprising a pressure detecting arrangement for detecting generated pressure variations, wherein the pressure detecting arrangement comprises a MEMS die and a signal processor, wherein th...
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WO/2023/140166A1 |
This ultrasonic probe comprises at least one piezoelectric element that sends/receives ultrasonic waves. The at least one piezoelectric element includes: a piezoelectric body formed by the sol-gel process; and at least one electrode that...
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WO/2023/135853A1 |
This transducer comprises a base portion (110), and a plurality of beam portions. The base portion (110) is frame-shaped. Each of the plurality of beam portions extends from above the base portion (110) toward an inner side of the base p...
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WO/2023/131986A1 |
A method for manufacturing an ultrasonic transducer (100) comprises the following steps. A first SOI substrate including: a first silicon film (111); a second silicon film (113); and an intermediate silicon oxide film (112) sandwiched be...
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WO/2023/132143A1 |
The present invention provides a new action to an object in a through-hole formed through an ultrasonic wave converging part and a waveguide, by devising the shape of the through-hole. An ultrasonic wave converging part (12) and a wave...
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WO/2023/123129A1 |
Disclosed in the present application are a piezoelectric sensing unit, a piezoelectric microphone and a terminal. The piezoelectric sensing unit comprises a base, an auxiliary layer, a central film, a piezoelectric film and a plurality o...
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WO/2023/119745A1 |
This ultrasonic transducer comprises a case (110), a piezoelectric element (120), and a first filler (130). The case (110) has a bottomed tubular shape with a bottom portion (111) and a side wall portion (112). The piezoelectric element ...
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WO/2023/119891A1 |
A mouthpiece 1 according to one embodiment includes a main body part 70, a piezoelectric sensor 10, and a support structure 700. The main body part 70 forms an air flow passage 80. The piezoelectric sensor 10 includes a piezoelectric ele...
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WO/2023/106211A1 |
An ultrasonic sensor (1) mounted to a moving body (V) comprises a fixing unit (3) and a conversion element (4). The conversion element has a proximal-end part (41), which is one end part in an axial direction following a directional axis...
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WO/2023/102438A1 |
Aspects of transducers with feedback transduction are described. One aspect is a transducer system comprising an operational amplifier having an inverting input, a non-inverting input, and an output. The transducer system also includes a...
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WO/2023/099518A1 |
The invention relates to an ultrasonic sensor (3, 31-34) for a motor vehicle (1), comprising a membrane assembly (5) for transmitting and receiving ultrasonic signals (13). A passive damping element (11) is arranged on an inner side of t...
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