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JP7383464B2 |
An acoustic vibration plate 10 is provided with a metal foil 11 and a thermoplastic resin film 12 laminated on the metal foil 11. The ratio of a linear coefficient of expansion CTEZ in the thickness direction to a linear coefficient of e...
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JP7367360B2 |
An ultrasound probe includes: a piezoelectric material in which piezoelectric elements to transmit and receive ultrasound are one-dimensionally arrayed; and at least one acoustic matching layer arranged on a subject side of the piezoelec...
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JP2023155792A |
To provide a piezoelectric element, a microphone, and a method of manufacturing the piezoelectric element capable of reducing an increase in man-hours.A piezoelectric element includes: a piezoelectric film 40 arranged on a support 10; an...
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JP2023150868A |
To provide an ultrasonic transducer capable of adjusting a resonance frequency at a mounting.An ultrasonic transducer comprises: a first substrate 10 which has a substantially flat upper surface; a piezoelectric layer 12 bonded to a lowe...
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JP2023148289A |
To provide an ultrasonic sensor that has high sensitivity in transmitting and receiving ultrasonic waves, and a method for manufacturing the ultrasonic sensor.An ultrasonic sensor comprises: a substrate that has a first surface and a sec...
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JP2023147983A |
To improve the performance of a piezoelectric film integrated device by providing two or more types of monocrystalline piezoelectric films on the same substrate.A piezoelectric film integrated device includes: a substrate (33); a first e...
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JP2023148096A |
To improve the performance of a piezoelectric film integrated device by providing two or more types of monocrystalline piezoelectric films on the same substrate.A piezoelectric film integrated device (100) includes: a substrate (33); an ...
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JP2023542697A |
A vibrating membrane and a sounding device, the vibrating membrane including at least one elastomer layer made of a rubber compound, the rubber compound including a nitrile rubber and a hydrogenated nitrile rubber, the nitrile rubber and...
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JP2023138447A |
To provide a sound producing cell having a high yield rate and high performance.A sound producing cell 100 comprises a membrane 110 and an actuating layer 130. The actuating layer is disposed on the membrane. The membrane is actuated by ...
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JP7346834B2 |
A speaker diaphragm includes a first lamination region and a second lamination region. In the first lamination region, a plurality of layers are laminated in a thickness direction of the speaker diaphragm. In the second lamination region...
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JP7344910B2 |
A PMUT ultrasound transducer includes a number of PMUT transmitting elements in a membrane layer. Behind each PMUT transmitting element is a cavity in the membrane layer. The cavities are partially or completely filled with a damping mat...
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JP7336417B2 |
To provide a resin film for a speaker diaphragm and a manufacturing method thereof, and a speaker diaphragm which can obtain excellent heat resistance and sound quality characteristics and prevent a speaker manufacturing process from bec...
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JP2023111749A |
To provide a diaphragm for a speaker in which occurrence of a valley is suppressed in frequency characteristics.A diaphragm for a speaker contains, as reinforcement fibers, a first fiber, a second fiber, and a matrix resin, wherein the f...
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JP7320429B2 |
To provide a resin film for a diaphragm of a portable equipment speaker which can expect improvement of slipperiness even when being formed of a crystalline thermoplastic polyimide resin, and suppresses occurrence of resonance and can ob...
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JP7318223B2 |
To provide a resin molding that excels in shape stability when manufacturing a resin molding using a sheet-like molding material.A method for manufacturing a resin molding 3 includes a step for curing a curable resin film 1 in a state in...
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JP2023093739A |
To provide a transducer that can be manufactured without using a volatile adhesive and an organic solvent.A transducer 1 includes: a first electrode sheet 21 provided with a plurality of first through-holes 21a; a dielectric layer 23 of ...
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JP2023092343A |
To provide an ultrasonic transducer that prevents an electrode on a side surface of a piezoelectric element from being damaged.In an ultrasonic probe 10, an ultrasonic transducer 100 includes a piezoelectric element layer 101 and a reinf...
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JP2023085643A |
To provide an ultrasonic probe that is improved in directivity and has chemical resistance, and a method of manufacturing the same.An ultrasonic probe 10 comprises: a vibrator array 40a constituted by arraying many individual vibration p...
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JP7291888B2 |
To precisely arrange a voice coil in a magnetic gap.A manufacturing method of the speaker device includes the steps of: attaching a magnetic circuit 110 to a frame; fitting and arranging a tubular jig 210 inside a magnetic gap of the mag...
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JP2023079673A |
To provide a novel acoustic matching layer having particles uniformly dispersed therein, and/or good processability.An acoustic matching layer according to the present invention comprises amorphous carbon, and carbon particles dispersed ...
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JP2023523984A |
An optical microphone module (2) is described for installation in a microphone assembly. The module (2) comprises a semiconductor chip (4), a spacer (6) and an interfering component (8), the spacer (6) being disposed between the semicond...
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JP2023079663A |
To provide a novel acoustic matching layer which allows the balance between an acoustic velocity and a density to be controlled while decreasing the change in acoustic impedance.An acoustic matching layer according to the present inventi...
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JP7286886B2 |
Provided are an acoustic matching layer material including a thermosetting resin component and inorganic filler particles, in which in a cross-sectional observation of the acoustic matching layer material, a cross-sectional area of the i...
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JP7285590B2 |
Disclosed is a method of manufacturing ultrasonic sensors. The method includes forming a micropattern having concave and convex portions on an etchable substrate, filling a piezoelectric material in the concave portions of the micropatte...
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JP2023076303A |
To provide a method for manufacturing an ultrasonic transducer, in which an ultrasonic transducer having a characteristic structure around cavities and electrodes is manufactured using wafer bonding.A method for manufacturing an ultrason...
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JP7283695B2 |
To provide a manufacturing method of a small sound wave sensor capable of securely bonding at a position separated from a detection object by a predetermined dimension and obtaining a desired detection signal.By forming a plurality of so...
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JP2023065415A |
To provide a speaker device having an outer shape dimension which is smaller as possible, and also having a high performance and a linearity.A speaker device 1 comprises two speaker drivers each having: a frame 2; two inverse vibration p...
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JP2023515114A |
A piezoelectric device (100) and its manufacturing method. A first substrate (10) comprises an array of pillars (11) containing piezoelectric material (M). A second substrate (20) comprises a piezoelectric layer (21) facing each end of t...
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JP2023051816A |
To provide an inexpensive film for a diaphragm which allows arbitrary control of the elastic modulus, internal loss and density, has high heat resistance, and exhibits properties suitable in particular for a diaphragm for a small speaker...
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JP2023037904A |
To provide; an ultrasound transducer capable of improving adhesive strength between acoustic members and suppressing peeling of the acoustic members during dicing, disinfection, and cleaning; a method of manufacturing the same; an ultras...
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JP2023037906A |
To provide: an ultrasound transducer capable of improving adhesive strength between acoustic members and suppressing peeling of the acoustic members during dicing, disinfection, and cleaning; an ultrasound probe having the ultrasound tra...
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JP2023028690A |
To provide an ultrasonic transducer that makes it possible to inhibit the displacement of an oscillator.An ultrasonic transducer 1 is equipped with a resin base 10, an oscillator 11, and an intervening member 12. The oscillator 11 is ins...
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JP7226683B2 |
To provide an MEMS element that has reduced influence from stress applied to a movable electrode film and a stationary electrode film from a handle substrate and a spacer, and to provide a method for manufacturing the same.In an MEMS ele...
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JP2023506688A |
Acoustic transducer including housing, diaphragm, spider, motor, and drop ring. The motor includes a backplate, a frontplate, magnets, and a voice coil. A drop ring connects the diaphragm to the spider at its circumference. The drop ring...
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JP7224190B2 |
An object of the present invention is to provide an ultrasonic transducer having a high sensitivity and a high durability. An ultrasonic transducer includes: a pair of upper and lower electrodes; a cavity layer having a vibration space d...
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JP7223853B2 |
A method for sealing entries in a MEMS element. The method includes: providing a functional layer having a functional region; producing a cavity underneath the functional region of the functional layer with the aid of a first entry outsi...
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JP2023023668A |
To provide a film that can prevent delamination of multilayer films when the release film is peeled off before molding, while maintaining high shape retention before molding, and high formability and mold-following property during moldin...
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JP2023504383A |
The present invention expands the availability of ultrasonic transducers capable of broadband response. Kind Code: A1 The present invention relates to graphene-based transducers, including micro-mechanical ultrasonic transducers and elec...
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JP2023504027A |
Various methods and systems are provided for multi-frequency transducer arrays. In one example, the transducer array includes elements formed of one or more subelements, wherein at least one subelement has a different resonant frequency....
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JP7206239B2 |
The present disclosure relates to a piezoelectric assembly, an electronic device, and an assembly process for a piezoelectric assembly. The piezoelectric assembly includes at least two piezoelectric components (100), a positive circuit b...
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JP7186278B2 |
Fingerprint identification modules, methods for forming the fingerprint identification modules and electronic devices are provided. The method may include providing a substrate, containing a signal process circuit formed therein; providi...
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JP7182384B2 |
To provide a transducer that can reduce the manufacturing cost and prevent discharge of VOC at the same time.A transducer 1 includes: a conductive member 21; and an electrostatic sheet 23 provided in the surface normal direction of the c...
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JP7181011B2 |
To provide a piezoelectric electro-acoustic transducer capable of obtaining excellent sound pressure characteristics when lead-free piezoelectric ceramic is used as a material of a piezoelectric body, and a manufacturing method thereof.I...
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JP2022548625A |
A method of manufacturing a micro-electro-mechanical system (MEMS) microphone provides a silicon substrate having a silicon surface, forms an enclosed cavity in the silicon substrate, and forms a plurality of spaced-apart acoustic holes ...
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JP2022170866A |
To provide a manufacturing method of an element which enables improvement of operation characteristics.A manufacturing method of an element 1 includes: a step in which an alignment mark 3 formed of a non-transparent material is formed on...
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JP7167657B2 |
To provide a piezoelectric device manufacturing method capable of manufacturing a piezoelectric device with a highly reliable piezoelectric element, where each width of bypass wiring and connection wiring is designed suitably.A piezoelec...
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JP7168210B2 |
In this thin sheet production method, a titanium metal material thin sheet that maintains high strength, has excellent processability and has a curved surface is produced by: processing a pure titanium metal material into a titanium meta...
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JP2022168707A |
To provide a dynamic speaker for preventing corrosion of tinsel wires to be bonded to a diaphragm with an adhesive.In a speaker, a lead-out wire from a voice coil is drawn out along an inner side of a diaphragm 12, and tinsel wires 15 ar...
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JP7154462B1 |
An ultrasonic transducer of the present invention is a rigid support plate having a first surface and a second surface. a rigid support plate provided with a plurality of waveguides each having a first end on one end side that opens to t...
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JP2022151571A |
To provide a solid molded article that can be manufactured with a simple and short tact by using a naturally-derived material without requiring large scale facilities, and to provide a diaphragm and manufacturing methods of them.A solid ...
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