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Patent Searching and Data


Matches 1 - 50 out of 20,531

Document Document Title
WO/2021/008383A1
Embodiments of the present disclosure disclose a speaker and a terminal device. The speaker comprises a non-closed chamber, a diaphragm component disposed in the chamber, and a piezoelectric component disposed on a first surface of the d...  
WO/2021/001733A1
Device (1, T) for reproducing sounds, in particular sounds intended to be perceived by a subject using said device, comprising a containment element (2) in which a transducer (4), preferably of an electro-acoustic type, is housed, which ...  
WO/2021/003087A1
The present disclosure provides a contact hearing device comprising a piezoelectric actuator. The attachment of the piezoelectric actuator to a tympanic membrane can vibrate the tympanic membrane based on a transmission received by the r...  
WO/2021/000069A1
Provided is a combined piezoelectric and capacitive MEMS microphone, comprising a base having a back cavity, and a capacitance system arranged on the base, wherein the capacitance system comprises a backplane and a vibrating diaphragm, t...  
WO/2020/261909A1
The present invention provides: a polymer composite piezoelectric substance from which it is possible to obtain a piezoelectric film capable of generating a high sound pressure output when used in a piezoelectric loudspeaker; a piezoelec...  
WO/2020/261911A1
The present invention provides: a polymer composite piezoelectric body which enables the output of a higher sound pressure when used in a piezoelectric speaker and which also enables the manufacture of a piezoelectric film showing excell...  
WO/2020/261877A1
The present invention addresses the problem of providing a piezoelectric film capable of materializing an electroacoustic transduction film or the like that is highly durable and capable of producing an adequate level of sound pressure i...  
WO/2020/261954A1
Provided are an electroacoustic transducer and an electroacoustic transduction film that can suppress deterioration of the piezoelectric transduction efficiency during use under a high temperature environment. This electroacoustic transd...  
WO/2020/261837A1
The present invention addresses the problem of providing a piezoelectric film that makes it possible to obtain a high sound pressure and sufficient sound pressure characteristics over a wide frequency band, and to obtain a piezoelectric ...  
WO/2020/261822A1
The present invention addresses the problem of providing a piezoelectric film (10) capable of realizing an electroacoustic transduction film or the like which exhibits high heat radiation performance and provides sufficient sound pressur...  
WO/2020/261957A1
Provided is a polymer composite piezoelectric body and a piezoelectric film in which variations in the piezoelectric conversion efficiency are suppressed to provide stable piezoelectric conversion characteristics under various humid envi...  
WO/2020/261963A1
Provided are a polymer composite piezoelectric body and a piezoelectric film configured for high productivity and capable of suppressing the loss of piezoelectric conversion efficiency under harsh temperature/humidity conditions. The pol...  
WO/2020/261904A1
The present invention provides: a polymer composite piezoelectric body which enables the achievement of a piezoelectric film that is capable of outputting a higher sound pressure if used in a piezoelectric speaker; a piezoelectric film w...  
WO/2020/252889A1
Provided by the present application is a display apparatus in which the screen generates sound, comprising a display panel and a vibration layer which is provided within the display panel and which is located within a display area of the...  
WO/2020/255962A1
Provided is an audio reproduction apparatus comprising an audio device having a three-dimensional shape formed by providing a plurality of creases to a thin-film material having a first electrode layer, a second electrode layer, and a ca...  
WO/2020/255566A1
The present invention suppresses generation of mechanical cross talk in a medical ultrasonic sensor array which has a plurality of ultrasonic sensors. In this medical ultrasonic sensor array which has a plurality of ultrasonic sensors, e...  
WO/2020/249457A1
The invention relates to a method for producing a MEMS transducer (1) for generating and/or detecting sound waves in the audible wavelength range and/or in the ultrasonic range, in which method at least one piezoelectric element (3a-3c) ...  
WO/2020/250497A1
The piezoelectric device (100) is provided with a substrate (110), a piezoelectric element (120), a lid part (130), and a partition part (140). The substrate (110) has a first main surface (111). The piezoelectric element (120) is positi...  
WO/2020/250657A1
The piezoelectric element is provided with: a piezoelectric body made of a piezoelectric material; and a first electrode and a second electrode disposed on the piezoelectric body. The piezoelectric body has a base section and multiple dr...  
WO/2020/247551A1
Systems and techniques are provided for a piezoelectric transducer. A base plate includes a first electrical contact and a second electrical contact. A transduction element is mounted directly on the base plate and electrically connected...  
WO/2020/241049A1
An audio reproduction apparatus provided with: an audio device in which a plural-layer structure is formed by folding a plurality of times a thin-film material having a capacitance layer sandwiched between a first electrode layer and a s...  
WO/2020/243700A1
A transceiver apparatus for maximizing voltage. A voltage booster or transformer is implemented using piezoelectric thin films in substrates, preferably CMOS substrates where active processing of RF signals can lead to highly integrated ...  
WO/2020/232947A1
The present application discloses a liquid crystal display module and a mobile terminal. The liquid crystal display module is provided with three exciters embedded in a display panel, and a sound insulation portion, the exciter in the mi...  
WO/2020/229466A1
The invention relates to an acoustic bending transducer system (1, 2) with a plurality of bending transducers (3, 4, 5), which are designed in such a way that deformable elements (31, 32, 41; 32, 34, 42; 31, 32, 3'1, 3'2) of the bending ...  
WO/2020/230484A1
A piezoelectric device (100) is provided with a base board (110), a piezoelectric element (120), and a lid portion (130). The piezoelectric element (120) includes a base portion (121) and a membrane portion (122). The base portion (121) ...  
WO/2020/230358A1
In the present invention, a substrate (110) has a first principal surface (111) and a second principal surface (112). A piezoelectric element (120) is positioned on the first principal surface (111), and a lid (130) is also positioned on...  
WO/2020/226081A1
An ultrasonic sensor (1) comprises: an ultrasonic element (5) that converts electrical signals and ultrasonic vibrations; and an element accommodation case (6) that has the shape of a cylinder having a floor and has the ultrasonic elemen...  
WO/2020/217637A1
A piezoelectric sound component (100) comprises a piezoelectric diaphragm (10), a base (20), and a case (30) for storing the piezoelectric diaphragm (10) while being combined with the base (20). The base (20) has a bottom wall part (21) ...  
WO/2020/212540A1
The invention relates to a micromechanical acoustic transducer comprising a plurality of bending transducers suspended on one side. Each of the plurality of bending transducers is designed for deflection in an oscillation plane and said ...  
WO/2020/209362A1
An ultrasonic vibration adding tool including a ring-shaped balance weight having a threaded part, at the top of an inner circumferential surface, which the threaded part of a cylindrical housing is screwed into. The ultrasonic vibration...  
WO/2020/203317A1
An ultrasonic radiation tool having a plurality of plate elements. The plurality of plate elements respectively have a radiation surface for radiating ultrasonic waves and are arranged parallel to each other, with the radiation surfaces ...  
WO/2020/202351A1
This ultrasonic transducer comprises an elastic plate that can vibrate in the thickness direction thereof, a plurality of piezoelectric elements that are fixed side by side to a first surface of the elastic plate, a plurality of cylindri...  
WO/2020/203072A1
The present invention includes: a conductive case (3); a piezoelectric material (1) that has a piezoelectric electrode (2b); and an adhesive member (4) that adheres the case (3) to the piezoelectric material (1). The adhesive member (4) ...  
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)...  
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...  
WO/2020/193288A1
The invention relates to a MEMS comprising a substrate having a cavity. The MEMS comprises a moveable layer assembly arranged in the cavity and having a first bar, a second bar and a third bar arranged between the first bar and second ba...  
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...  
WO/2020/189740A1
The present invention addresses the problem of providing an ultrasonic sensor with high scanning precision and excellent scanning efficiency. An ultrasonic sensor according to one aspect of the present invention comprises: a vibration de...  
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...  
WO/2020/186260A1
A device that includes an adaptive acoustic detection circuit and an acoustic sensor device such as a microphone is described. The device includes in addition to the sensor a circuit configured to detect when an input stimulus to the sen...  
WO/2020/184165A1
An ultrasonic sensor (1) is provided with a first electrode (21c; 20), a second electrode (41), and a third electrode (42). The first electrode is provided in an ultrasonic microphone (2) provided with a vibrating element (21) which has ...  
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...  
WO/2020/186265A1
An acoustic device is described and includes an acoustic sensor element configured to sense acoustic energy and produce an output signal and a threshold detector circuit including a switch having an input coupled to the output of the aco...  
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...  
WO/2020/178063A1
The invention relates to a piezoceramic hydrophone at least comprising the following elements: a first hemispherical shell (1) and a second hemispherical shell (2) which have been assembled to form a hollow sphere (3); wherein the first ...  
WO/2020/174640A1
Provided is a sonar in which it is possible to widen the specific bandwidth of ultrasonic waves without involving an increase in size of an ultrasonic transducer. The sonar according to the present invention has: an ultrasonic transducer...  
WO/2020/176150A1
A panel audio loudspeaker includes a panel extending in a plane. The panel audio loudspeaker includes an actuator attached to the panel. The actuator includes a rigid frame attached to a surface of the panel, the rigid frame including a ...  
WO/2020/176086A1
Embodiments of the invention are directed to a microactuator including using (i) an ingress membrane mounting ring adhesive positioned on an ingress membrane mounting surface to mount an ingress membrane and (ii) a flexible encapsulation...  
WO/2020/170937A1
Provided is an oscillation device that allows for improved productivity, improved reliability, and increased vibration efficiency. An oscillation device 1 is provided with: an oscillator plate 6 comprising first and second oscillating ...  
WO/2020/170286A1
An ultrasonic transducer according to the present invention comprises an elastic plate capable of vibrating in the plate thickness direction, a plurality of piezoelectric elements secured in a parallel state to the first surface of the e...  

Matches 1 - 50 out of 20,531