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JP4713285B2 |
Electro-dynamic loudspeakers typically include a diaphragm having a conductor applied to one of its surfaces. The diaphragm is secured to a frame. The conductor is connected to a power supply for providing electrical current through line...
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JP4712474B2 |
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JP2011124997A |
To disclose an invention related to an ultrasonic probe, and a method of manufacturing the same.This probe comprises a first piezoelectric member having a first thickness, and a second piezoelectric member having a second thickness and s...
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JP4706578B2 |
The present invention relates to a push-pull type electrostatic ultrasonic transducer, particularly, an electrostatic ultrasonic transducer capable of generating usual sound pressure with lower energy, and thereby, reducing voltage (lowe...
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JP4701059B2 |
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JP4702826B2 |
A method for manufacturing a multi-layer acoustic transducer with reduced total electrical impedance. The method is based on the bonding of two piezoelectric ceramic layers with confronting metallized surfaces to a thin electrical conduc...
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JP4697058B2 |
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JP4697763B2 |
A condenser microphone has a conductive diaphragm 3 having an earth electrode layer 31 formed of a conductive light metal; a conductor fixed electrode 5 arranged opposite to the conductive diaphragm 3 through an air layer; an organic die...
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JP4690942B2 |
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JP4685013B2 |
The present invention relates to a method for making an ablation transducer having a plurality of helical elements that can be operated out of phase to orient the acoustical energy beam forward or backward in the longitudinal direction. ...
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JP4681248B2 |
A screen printing ink includes micelle structural particles formed by aggregating molecules of ammonium acrylate to dispersed particles containing phenol resin, and a dispersion medium for dispersing the micelle structural particle.
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JP2011087097A |
To negatively charge an electret material which is provided on a fixed electrode of an electret capacitor microphone unit, not through a corona discharge.When charging minus (-) electric charges in the electret material 13 provided on th...
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JP4677274B2 |
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JP4675895B2 |
A shallow loudspeaker provided with a chassis (2), a movable body (4), a resilient suspension for guiding the movable body with respect to the chassis along a translation axis (T), and an electric actuator (6) for driving the movable bod...
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JP2011512260A |
A MEMS component includes a substrate in which at least one cavity is present. The cavity is closed off toward an active side of the substrate. An inactive side is arranged opposite the active side of the substrate, and the substrate is ...
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JP4675463B2 |
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JP2011077572A |
To simply produce an ultrasonic transducer whose configuration is comparatively simple while improving transmitting and receiving sensitivities.A UT array 21 has a structure in which backing material 26, a lower electrode 27, piezoelectr...
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JP2011077853A |
To provide a method of manufacturing a ribbon for a ribbon type microphone, specifically the one that can improve an yield of transferring a mold to a ribbon material by pressing the ribbon material against the mold and can easily manufa...
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JP4670699B2 |
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JP4670643B2 |
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JP4669449B2 |
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JP4663531B2 |
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JP2011066674A |
To achieve both higher power of input and improvement of sound quality in a speaker having a large aspect ratio in particular about a diaphragm for a speaker used in various acoustic apparatuses and the speaker using the same.An edge, a ...
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JP4659519B2 |
A diaphragm assembly used for a condenser microphone has a diaphragm made of a resin film including a metallized film on one surface of a supporter ring. The diaphragm is made by a first step of bonding a ring jig of a larger diameter th...
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JP4659711B2 |
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JP4659703B2 |
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JP2011061308A |
To provide a method of manufacturing a ribbon microphone, and more specifically, a method of mounting a ribbon diaphragm for a ribbon microphone unit.The ribbon microphone includes a permanent magnet forming a magnetic field and the ribb...
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JP4652277B2 |
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JP2011049693A |
To prevent variations in sensitivity characteristics even when producing multiple pieces of vibration film subassemblies, spacers and annular members of capacitor microphones as upper units, in a capacitor microphone having a metal case....
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JP4648610B2 |
The method for manufacturing an in-the-ear shell for a hearing device comprises the steps of automatically generating a first three-dimensional digital model of the surface that describes the shape of an ear canal of a subject as a 2-man...
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JP2011044890A |
To satisfy both downsizing and high performance of an electromechanical transducer by suppressing deflection in a first vibration area.A microphone 100 includes: a vibrating film 2 including a first vibration area 6 and a second vibratio...
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JP4644220B2 |
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JP4642634B2 |
To improve spectacularly the manufacture efficiency of acoustic sensors and to realize a large-scale mass-production of high-quality acoustic sensors. A metal can sealed package is constructed by mounting an electro-acoustic transducing ...
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JP4638854B2 |
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JP4636726B2 |
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JP2011031385A |
To provide an inexpensively manufacturable MEMS sensor.A silicon microphone 1 as one example of the MEMS sensors includes a silicon substrate 2 having an opening 5 formed to extend therethrough, a vibrating membrane 6 set opposite to the...
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JP4633571B2 |
To provide an array type ultrasonic vibrator which is configured while preventing the adverse effect of adhesion. The array type ultrasonic transducer comprises: a piezoelectric vibrator having a first electrode which is provided on an u...
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JP4631487B2 |
In a process for producing a loudspeaker diaphragm, pulp is deposited on a paper-making mold in the presence of vortex stream of water having pulp dispersed therein in a paper-making bath. Pulp is deposited on the paper-making mold while...
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JP4634257B2 |
A voice coil bobbin is formed by skinpass rolling of pure titanium. A manufacturing method of a voice coil bobbin includes a process which manufactures a rolled pure titanium material, a process which executes skinpass rolling of the rol...
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JP4632853B2 |
To provide an electrostatic capacitive ultrasonic transducer in which an elastically hardly deformable region is configured near the center of a membrane, an elastically deformable region is configured around the membrane and an electric...
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JP4633828B2 |
To provide a method which can simply manufacture various components of a vibration system for an electro-acoustic converter by commonly using dimensions of a product, a free degree of the shape, and an electro-spinning method which has a...
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JP4627019B2 |
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JP4627676B2 |
A fluororesin material is irradiated with ionizing radiation at a temperature not lower than the crystalline melting point of the fluororesin material in the absence of oxygen to form a crosslinked modified fluororesin material. An elect...
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JP2011023503A |
To reduce a working time at the dicing step of dividing a semiconductor device by growing cracks along a planned dividing line starting from a reformed region after inducing multiple photon absorption by setting a laser light-condensing ...
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JP4623000B2 |
A production method for an electroacoustic transducer diaphragm includes producing an adhered sheet by adhering a sheet member on a surface of a wooden sheet having a thickness of from 0.01 mm to 3 mm, and the sheet member being made of ...
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JP4620008B2 |
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JP4621530B2 |
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JP2011015006A |
To provide a highly reliable microphone device capable of unfailingly interrupting sound leakage without requiring high dimension accuracy.This microphone device includes: a casing 1; an upright portion 2 formed so as to surround a sound...
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JP4616467B2 |
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JP2011010132A |
To provide a sensor which detects a detection object over a wide azimuth angle range with non-contact by detecting even a wave motion (that is a peripheral field of view) coming from a shallow elevation angle direction to a holder, and a...
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