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WO/2016/174709A1 |
This ultrasonic transducer production method includes: a sequence determination step (S2) for determining the sequence of a plurality of piezoelectric elements in a laminate on the basis of the mechanical quality factor of each piezoelec...
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WO/2016/172866A1 |
A piezoelectric speaker and a method for forming the piezoelectric speaker are provided. The method includes: providing a piezoelectric actuator (100) which comprises a piezoelectric layer (111), a bottom electrode (122) and a top electr...
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WO/2016/170961A1 |
The ultrasonic transducer according to the present invention is provided with: a plurality of piezoelectric elements; a substrate for inputting/outputting electric signals to/from the piezoelectric elements; a plurality of signal input/o...
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WO/2016/169256A1 |
Disclosed is a speaker device, comprising a vibration system, a magnetic circuit system, and an auxiliary system fixedly accommodating the magnetic circuit system and the vibration system. The vibration system comprises a centering suppo...
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WO/2016/171003A1 |
An ultrasonic sensor (100) is provided with: a bottomed cylindrical case (60), which includes a bottom section (62) and a cylindrical section (61), and is formed of a conductive member; and a piezoelectric element (50) bonded to an inner...
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WO/2016/168620A1 |
Methods and systems of wide-angle ultrasound transducers that receive or transmit over a wide angular range are disclosed. In one embodiment, the transducer includes an aperture that includes multiple piezoelectric segments sequentially ...
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WO/2016/167003A1 |
Provided is an ultrasonic sensor whereby reverberant vibration can be suppressed by a simpler circuit configuration than in the prior art. The ultrasonic sensor (100) is provided with a flat plate-shaped piezoelectric body (50) that incl...
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WO/2016/165320A1 |
Disclosed is a piezoelectric speaker, comprising electrically-conductive terminals, a frame, a diaphragm fixed to the frame, and a piezoelectric sheet fixed to the diaphragm, also: an antenna circuit is provided on the surface of the pie...
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WO/2016/158762A1 |
A piezoelectric element (50) is formed by laminating a plurality of piezoelectric body layers and is provided with a laminate having a top surface (41), serving as a first principal surface, and a bottom surface (46), serving as a second...
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WO/2016/155321A1 |
Disclosed in the present invention is a composite structure of a piezoelectric receiver and an ultrasonic wave generator, comprising: a piezoelectric chip, an ultrasonic signal generator, an audio signal input circuit and a switching cir...
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WO/2016/158518A1 |
The present invention provides a nondirectional electroacoustic transducer with a small parts count, with which it is possible to reproduce with high sound quality and sufficient sound volume in a wide frequency band. An electroacoustic ...
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WO/2016/154397A1 |
A piezoelectric two-dimensional mode resonator suited for high frequency filtering applications, with the ability to simultaneously excite lateral and vertical acoustic waves.
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WO/2016/151832A1 |
Provided are a laminated structure and an apparatus for manufacturing the laminated structure, with which it is possible to readily decrease the thickness and increase the area of a substrate layer and with which it is possible to reliab...
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WO/2016/147917A1 |
An ultrasonic sensor (103) is provided with a closed-end cylindrical case (1), a piezoelectric element (2i) joined to an inner bottom surface (11a) of the case (1), and a conducting member connected thereto. The piezoelectric element (2i...
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WO/2016/147250A1 |
[Problem] To provide an ultrasonic transducer and an ultrasonic medial apparatus in which the efficiency of vibration transmission for equalizing thermal stresses developing at four corners of a rectangular piezoelectric element and redu...
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WO/2016/143469A1 |
Provided are a polymer composite piezoelectric body having an elevated electroacoustic conversion efficiency and an improved sound pressure level, an electroacoustic conversion film and an electroacoustic converter. The polymer composite...
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WO/2016/144861A1 |
The present invention provides for systems and methods for acquiring acoustic information from a resonating body. Specifically, a focused light beam is emitted from an emitter module onto an impedance matching reflector. The impedance ma...
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WO/2016/136365A1 |
An ultrasound probe is provided which maintains sufficient adhesion strength of the layers that configure the ultrasound probe and which matches the acoustic impedance of a piezoelectric element to that of the organism; also provided is ...
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WO/2016/136522A1 |
Provided are highly reliable structure body and electro-acoustic converter wherein a piezoelectric body layer in a piezoelectric film is thin, and capable of preventing a local short-circuit from occurring even when a voltage is applied ...
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WO/2016/137200A1 |
The present invention provides a sound output device comprising a housing having a receiving space arranged therein, a first sound output unit arranged in the housing, and a second sound output unit arranged and spaced apart from the fir...
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WO/2016/137022A1 |
Disclosed are an ultrasonic transducer having an active element or a thick metal layer of a matching layer, and a method for manufacturing same. The ultrasonic transducer, according to one embodiment of the present invention, comprises: ...
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WO/2016/136327A1 |
A resonance layer (30) and an acoustic separation layer (34) are arranged adjacent to each other between a piezoelectric element (24) and a circuit board (16) provided with an electronic circuit for driving the piezoelectric element. The...
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WO/2016/136591A1 |
The present invention provides an electroacoustic transducer and an electroacoustic conversion system with which it is possible to stably reproduce a high-quality sound and expand a reproducible-frequency bandwidth. An electroacoustic tr...
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WO/2016/137023A1 |
Disclosed are an ultrasonic transducer having a matching layer having a composite structure, and a method for manufacturing same. The ultrasonic transducer, according to one embodiment of the present invention, comprises: an active eleme...
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WO/2016/136475A1 |
Provided is an indium nitride piezoelectric thin film which has excellent piezoelectric characteristics. An indium nitride piezoelectric thin film which contains samarium or lanthanum.
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WO/2016/133016A1 |
This ultrasonic sensor is provided with a case, and a laminated piezoelectric element (50). On the bonding surface side of the piezoelectric element, a grounding electrode (30), and a non-grounding electrode (20) are positioned, said non...
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WO/2016/129829A1 |
The ultrasonic transducer comprises: a piezoelectric body for converting electrical energy to mechanical vibrations and generating ultrasonic waves; an upper electrode formed on the upper portion of the piezoelectric body, transfers the ...
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WO/2016/129202A1 |
A piezoelectric speaker (100, 200, and so on to 500) includes a piezoelectric element (1), and a vibrating metal section (2, 22, and so on to 352) to which the piezoelectric element (1) is bonded with an adhesive section (3) therebetween...
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WO/2016/126041A1 |
An ultrasonic transducer dissipates heat by the thermal conductivity of an aluminum layer adjacent to an active element, and has the boundary surface of a matching layer formed as a composite structure, thereby improving acoustic propert...
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WO/2016/125956A1 |
A nonflammable piezoelectric speaker device of the present invention is characterized by being configured in the following manner: in a state in which a ceramic plate is attached to the center of a metal diaphragm vibration plate, an ele...
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WO/2016/125702A1 |
An ultrasonic-wave transmitting-and-receiving device according to the present invention includes: a plate-like piezoelectric element having a planar shape selected from a polygonal shape, a circular shape, and an elliptical shape; and a ...
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WO/2016/124465A1 |
The invention relates to an electro-acoustic implant, having an elongated electrode carrier with a plurality of stimulation electrodes, which can be introduced into a cochlea, as well as a flat sound transducer which can be stimulated to...
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WO/2016/121765A1 |
The present invention provides: a highly productive electroacoustic conversion film with which it is possible to appropriately convert vibration and voltage without causing air breakdown between upper and lower thin-film electrodes even ...
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WO/2016/122237A1 |
The present invention provides an information provision system using an ultrasonic speaker, the system comprising: a fusion speaker part consisting of a speaker in an audio frequency band and a directional speaker in an ultrasonic band; ...
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WO/2016/117721A1 |
Disclosed is an ultrasonic transducer having a sound absorbing layer for improving heat dissipation. The ultrasonic transducer, according to one embodiment of the present invention, comprises: an active element; a matching layer formed o...
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WO/2016/117665A1 |
[Problem] To reduce the thickness and size and obtain favorable output of a high-frequency band in a universal speaker provided with a vibration plate that forms a curved surface part that is curved. [Solution] This universal speaker 10 ...
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WO/2016/118874A1 |
A speaker apparatus includes a speaker assembly and a piezoelectric driver. The speaker assembly including a diaphragm and a motor. Application of a first electric current to the motor causes a first movement of a portion of the motor. T...
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WO/2016/114173A1 |
Provided is a method for manufacturing a piezoelectric device comprising a substrate (4), and a vibrating part supported directly or indirectly by the substrate (4) and having a membrane shape or beam shape arranged to the upper side of ...
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WO/2016/107975A1 |
A piezoelectric MEMS transducer comprises a substrate, at least one membrane, at least one electrically isolating layer between the membrane and the substrate, a plurality of piezoelectric actuators arranged on the membrane, at least one...
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WO/2016/104396A1 |
A piezoelectric element of an ultrasonic sensor comprises: a piezoelectric layer (40) including a transmission region (40N) and a reception region (40M); a common electrode (30); a transmission electrode (20); and a reception electrode (...
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WO/2016/104820A1 |
An ultrasonic transducer having a flexible printed circuit board with a thick metal layer and a manufacturing method thereof are disclosed. The ultrasonic transducer, according to an embodiment of the present invention, comprises: an act...
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WO/2016/103931A1 |
To improve sound qualities by suppressing generation of a secondary sound source. The present invention is provided with a supporting body fixed to a base, a loudspeaker unit having a section to be fixed, and a base housing that holds th...
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WO/2016/104414A1 |
An ultrasonic generation element provided with a tabular frame (7) having an opening (7e) formed at the center, a tabular first oscillator (10) joined to one principal surface (7f1) of the frame (7), and a tabular second oscillator (11) ...
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WO/2016/103930A1 |
The present invention enhances acoustic conversion efficiency and improves sound quality. A speaker device is provided with: an oscillating element that expands and contracts in accordance with a drive signal; two oscillating bodies that...
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WO/2016/103826A1 |
[Problem] To provide an acoustic generator having excellent sound qualities, an acoustic generation device, and an electronic apparatus. [Solution] An acoustic generator of the present invention is provided with: a piezoelectric element ...
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WO/2016/104415A1 |
An ultrasonic sensor (101) is provided with the following: a bottomed cylindrical case (2) having a bottom plate (2a) and side walls (2b); a piezoelectric element (3) disposed above the bottom plate (2a) inside the case (2); and a fillin...
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WO/2016/093115A1 |
A vibrating body (101) is provided with: a support plate (1) including a first main surface (1a) and a second main surface (1b) facing in the direction opposite to the first main surface (1a); a piezoelectric body (2) disposed on the fir...
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WO/2016/093228A1 |
A vibrating body (101) comprising: a support plate (1) which has a first main surface (1a) and a second main surface (1b) that faces the opposite side to the first main surface (1a); a piezoelectric body (2) which is provided to the firs...
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WO/2016/088459A1 |
The objective of the present invention is to maintain a satisfactory sound output condition over a wide band, in the context of reducing drive losses with respect to a vibrating plate. A speaker device is provided with: an annular coil b...
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WO/2016/084666A1 |
This electronic device is provided with a panel, a piezoelectric vibration element, a first fitting member, and a second fitting member. The panel is provided on the front surface of the electronic device. The piezoelectric vibration ele...
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