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JP6641723B2 |
To provide an ultrasonic transducer having air bubbles uniformly scattered in a joint material filled in narrow grooves, and to provide an ultrasonic probe and an ultrasonic imaging apparatus including the ultrasonic transducer.An ultras...
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JP6637919B2 |
To provide a manufacturing method of a film for diaphragm of a speaker capable of improving durability of a diaphragm by securing heat resistance at 150°C or higher.A molding material 1 containing a polyetherketoneketone resin of which ...
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JP6636516B2 |
An ultrasonic transducer element is configured by a substrate, a lower electrode which is formed on a first principal surface of the substrate, a first insulating film which is formed on the lower electrode, a first cavity layer which is...
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JP6630001B2 |
Provided is a sensor part having a vibrating member and a mounting method therefor that allows the sensor part to be mounted to a target member such as a bumper in a simple, efficient and reliable manner. The sensor part includes a first...
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JP6628783B2 |
To provide a method for manufacturing a film for a diaphragm of a speaker capable of securing heat resistance at 160°C or higher, and of improving durability of a diaphragm.A method for manufacturing a film for a diaphragm of a speaker ...
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JP6628255B2 |
The method can include depositing a graphene oxide containing material from solution to form a laminar nano-structure of graphene oxide paper, and assembling at least a portion of the graphene oxide paper as a diaphragm of the acoustic t...
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JP2019212992A |
To provide a capacitive transducer with high power and high reliability.The capacitance transducer comprises: a first electrode 8; a first insulating film 9 provided on the first electrode; and a vibrating film 6 provided by facing the f...
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JP6618619B2 |
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JP2019208106A |
To provide a speaker capable of coaxially providing a vibration system unit and a magnetic circuit unit by positioning a voice coil at a correct axial position even when a diaphragm and a dust cap are integrally formed, and a method of a...
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JP6613875B2 |
A speaker diaphragm in which the Young's modulus, internal loss (tan δ), airtightness, and various strengths are well balanced is provided. The speaker diaphragm according to the present invention includes wood pulp and cellulose nanofi...
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JP6610369B2 |
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JP2019195496A |
To provide a low-cost array type ultrasonic probe that is superior in ultrasonic propagation characteristics.An ultrasonic probe AP of the present invention has a plurality of piezoelectric elements 22 arranged in an array form on the sa...
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JP6601973B2 |
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JP6598167B2 |
The present invention is aimed to provide, as an acoustic lens propagating a sonic wave having a wavelength λ of 100 µm or less, an acoustic lens capable of exhibiting excellent acoustic characteristics in response to the wavelength λ...
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JP6599968B2 |
A piezoelectric micromechanical ultrasonic transducer (PMUT) includes a multilayer stack disposed on a substrate. The multilayer stack may include an anchor structure disposed over the substrate, a piezoelectric layer stack disposed over...
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JP2019530505A |
A method of manufacturing an intravascular imaging assembly is provided. In one embodiment, a step 415 of forming a laminated structure having a plurality of sacrificial material layers arranged in an alternating pattern between a plural...
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JP6594807B2 |
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JP6587051B2 |
An ultrasonic sensor includes: a substrate disposed across an XY plane; a plurality of spaces formed in the substrate in at least one direction of an X-axis direction and a Y-axis direction; a vibrating plate that is provided on the subs...
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JP6582273B2 |
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JP6584784B2 |
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JP6582370B2 |
To provide a piezoelectric material, having both high piezo-electric constant and specific band, capable of being stably produced, an ultrasonic transducer including the same, and an ultrasonic imaging apparatus.A piezoelectric material ...
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JP6580356B2 |
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JP6577653B2 |
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JP6570988B2 |
To provide a method for manufacturing an inexpensive lightweight film for a vibration plate of a speaker, which has a superior mechanical characteristic, heat resistance and sound quality characteristic.A method for manufacturing a film ...
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JP6569740B2 |
An array speaker device (1A) includes a vibrator (20) arranged on one face of a substrate having a uniform thickness, the vibrator being formed of a base material layer (11), a first electrode layer (12), a piezoelectric element layer (1...
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JP2019145934A |
To provide an MEMS transducer device having waterproof dustproof characteristics and electromagnetic shielding effect while securing passage characteristics of an input signal, and a method for manufacturing the same.In an MEMS transduce...
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JP2019145732A |
To manufacture a device while guaranteeing good bond strength in wire bonding, and reducing man-hours.A device manufacturing method includes a removal process (S11-S14) for removing a second electrode layer 122 from a layer structure mem...
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JP6565913B2 |
An ultrasound sensor includes : a substrate which has at least one opening portion 18; a diaphragm 50 which is provided on the substrate so as to block the opening portion 18; a plurality of first electrodes 14 which is provided so as to...
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JP6562667B2 |
A capacitance type transducer (100) includes one or more cells having a structure in which a vibrating film (101) including one electrode (102) of a pair of electrodes (102, 103) formed spaced apart from each other is supported to be cap...
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JP6558559B2 |
A microphone having a housing including a bottom part and an upper part, and a transducer element which is arranged in the housing and is electrically and mechanically connected to the bottom part. For stress-free mounting of the transdu...
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JP6558130B2 |
To provide a method for manufacturing a vibration device having excellent durability and capable of suppressing fatigue breakdown due to stress.A method for manufacturing a vibration device comprises: an anti-oxidization film forming ste...
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JP6557846B1 |
The present invention provides a porous PI film having excellent heat resistance, light weight, and sound quality characteristics, which can be suitably used for a speaker diaphragm, and a method for producing the same. The present inven...
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JP6552149B1 |
The ultrasonic transducer according to the present invention includes an elastic plate that can vibrate in the thickness direction, a plurality of piezoelectric elements fixed in parallel to the first surface of the elastic plate, and a ...
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JP2019125836A |
To provide a magnetic circuit which is easy to manufacture while improving vibration strength.Since a pair of magnets 21A, 21B is disposed with their surfaces having different polarities facing each other, there is no need to bring membe...
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JP6550387B2 |
Multi-layered thin film piezoelectric material stacks and devices incorporating such stacks. In embodiments, an intervening material layer is disposed between two successive piezoelectric material layers in at least a portion of the area...
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JP6543584B2 |
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JP2019110441A |
To provide a speaker with excellent durability and waterproofness while reducing the number of parts.A speaker 100 according to the present invention includes a base 200 on which a magnetic circuit member is mounted and a main unit 300 m...
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JP6536792B2 |
An ultrasonic sensor includes: when two orthogonal axes are referred to as an X axis and a Y axis and a plane formed by the X axis and the Y axis is referred to as an XY plane, a substrate disposed across the XY plane; a plurality of spa...
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JP6534118B2 |
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JP6530403B2 |
The present invention relates to an ultrasound transducer assembly (10), in particular for intra vascular ultrasound systems. The assembly (10) comprises a transducer array (12) including a plurality of transducer elements (14) for trans...
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JP2019514299A |
A noise shielding ear set and a method for manufacturing the same are disclosed. The noise shielding ear set according to the present invention is composed of a driver unit having a back hole formed and a case in which the driver unit is...
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JP6521417B2 |
A piezoelectric sounding component includes a diaphragm that includes a metal plate and a piezoelectric body formed on the metal plate. A casing includes a bottom wall and side walls defining an open sound chamber. The casing also includ...
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JP2019080155A |
To provide an electronic device and a manufacturing method thereof that can miniaturize an electronic component and can easily manufacture a connection structure between an external terminal and electrodes of the electronic component.A p...
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JP2019080312A |
To provide an assembly method of a loudspeaker with a closed membrane, which is capable of minimizing an air gap and relative distances of a voice coil in the air gap, in such a way as to maximize the performance of the loudspeaker while...
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JP6509050B2 |
Provided are: a carbonaceous acoustic matching layer which exhibits satisfactory mechanical strength, in which losses at a layer interface are suppressed as far as possible and in which the degree of variation in acoustic impedance in th...
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JP2019054309A |
To provide a speaker diaphragm capable of ensuring the moisture resistance reliability and strength with large freedom in sound quality adjustment while achieving weight reduction and high rigidity.A speaker diaphragm 100 comprises: a re...
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JP6496097B1 |
The ultrasonic transducer according to the present invention has a first surface and a second surface facing one side and the other side in the plate thickness direction, respectively, and has an elastic plate capable of vibrating in the...
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JP6494248B2 |
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JP6495338B2 |
Disclosed is a method for manufacturing an ultrasonic transducer assembly comprising an ultrasonic transducer chip having a main surface comprising a plurality of ultrasound transducer elements and a plurality of first contacts for conne...
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JP2019047151A |
To provide a circumstance friendly speaker diaphragm capable of ensuring moisture resistance reliability and strength with large degree of freedom in sound quality adjustment while achieving light-weight and high rigidity at low cost.A s...
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