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Matches 351 - 400 out of 6,658

Document Document Title
WO/2010/023344A1
The invention describes an ultrasonic device that is useful for the emission of acoustic waves in air in the ultrasonic range, which comprises, amongst other elements, a resonant cavity (5) with one or more apertures (7) for generating s...  
WO/2010/018694A1
Disclosed is an organic piezoelectric material film which has little contaminants and has excellent piezoelectric properties. The organic piezoelectric material film is produced by casting a solution of an organic piezoelectric material ...  
WO/2010/016208A1
A manufacturing device for a speaker is provided with a first to a third guide. A frame is guided by the first guide and mounted on the manufacturing device. A yoke is guided by the second guide, and the frame and the yoke are coupled....  
WO/2010/009934A1
The invention relates to a micromechanical component or a method for manufacturing such a component, wherein a cavity (270) is produced in the substrate starting from an opening (215) at the rear of a monocrystal semiconductor substrate ...  
WO/2010/010701A1
A diaphragm for a speaker is formed by making a sheet by using fibers extracted from bamboo leaves in a content of at least 5 wt%. Consequently, a high-sound-quality diaphragm for a speaker that has improved rigidity and a light environ...  
WO/2010/010727A1
Disclosed is an organic piezoelectric material film which has little contaminants and has excellent piezoelectric properties. The organic piezoelectric material film is produced by a solution casting process using, as raw materials, a ra...  
WO/2009/154091A1
The manufacture yield of a semiconductor device (capacitive micromachined ultrasonic transducer) is improved. A plurality of first chips (1) wherein a plurality of cells having a function of transmitting/receiving ultrasonic waves are f...  
WO/2009/147848A1
The variation of the amount of charge given to an electretized dielectric film because of ionizer irradiation is reduced, and the variation of the sensitivity of a microphone is also reduced. A conductor (4) is maintained in a floating s...  
WO/2009/148026A1
A diaphragm is provided with a first layer (3), which includes a fiber material and has a first surface and a second surface facing the first surface; a second layer (2), which includes a natural wood sliced into a sheet having a thickne...  
WO/2009/144773A1
An electromagnetic convertor comprises eternal magnets arranged with a predetermined gap therebetween and with their polarities alternately different from each other, a vibrating membrane which is arranged opposite to the eternal magnet ...  
WO/2009/139400A1
A ultrasonic probe is provided with a cMUT chip having a plurality of vibration elements that change electro-mechanical coupling coefficients or sensitivities in accordance with a bias voltage to transmit and receive ultrasonic waves, an...  
WO/2009/077917A3
A MEMS microphone (100) is disclosed comprising: a substrate (101), a membrane (102) attached to the substrate (101), and an electrode (104) attached to the substrate ( 101 ), wherein the membrane ( 102 ) and the electrode ( 104 ) have t...  
WO/2009/109799A3
A capacitive transducer includes a substrate having a first surface and a second surface. The first surface of the substrate defines a first plane. The substrate has a cavity with an interior peripheral edge. The cavity extends between t...  
WO/2009/120429A1
A water-resistant composite paper, suitable for use as a loudspeaker component, is made from a composition including wood pulp, hydrophobic fibers, stiffening fibers that retain stiffness when wet, and fluorocarbon. In some examples, fib...  
WO/2009/116957A2
A device for sensing an acoustic signal comprises a backplate of electrically conductive material, with the backplate defining at least one channel, and a diaphragm of electrically conductive material that is connected to, and insulated ...  
WO/2009/113433A1
Disclosed is an organic piezoelectric material which has particularly excellent heat resistance, while exhibiting excellent transparency, surface gloss, adhesion and piezoelectric characteristics. Also disclosed are an ultrasonic transdu...  
WO/2009/113432A1
Provided is an organic piezoelectric material which has excellent piezoelectric property, heat resistance property in particular. An ultrasonic oscillator, which is to be used for an ultrasonic medical diagnostic imaging device which can...  
WO/2009/112241A1
The invention relates to a condenser microphone comprising a microphone capsule (100), which has an at least partially electrically conductive membrane (110) and a counter electrode (120) associated therewith. The counter electrode (120)...  
WO/2009/109799A2
A capacitive transducer includes a substrate having a first surface and a second surface. The first surface of the substrate defines a first plane. The substrate has a cavity with an interior peripheral edge. The cavity extends between t...  
WO/2009/098926A1
A speaker (10) includes a magnet (12) and a horizontal coil (22). The magnet (12) is magnetically coupled with a yoke (16), and a resin ring (14) is inserted into a magnetic gap (G) between the magnet (12) and the yoke (16). The horizont...  
WO/2009/093444A1
Disclosed in the present invention is a speaker diaphragm equipped with a woven fabric layer impregnated with a thermosetting resin that is thermally cured and a paper layer integrated by being laminated on the back side of the woven fab...  
WO/2009/088001A1
This invention provides an ultrasonic probe, a process for producing the ultrasonic probe, and an ultrasonic diagnosis apparatus. In the ultrasonic probe, when an adhesive layer is provided between a plurality of members stacked in an ul...  
WO/2009/086838A1
The present invention relates to a magnet assembly (1) for a transducer unitofthe type having a moving membrane and having a voice coil arranged into said magnet assem- bly,said magnet assembly comprising the components i) a T-yoke (2); ...  
WO/2009/088002A1
A vibration plate (1) is made of a vibration member (10) provided with a first area portion and a second area portion that are integrally formed by using an isotropic material. The first area portion includes reinforcing members (13a-13d...  
WO/2009/078208A1
An ultrasonic probe (2) transmits a first ultrasonic signal into an examinee and receives a second ultrasonic signal based on the first ultrasonic signal and coming from the examinee. The ultrasonic probe (2) includes a plurality of firs...  
WO/2009/077917A2
A MEMS microphone (100) is disclosed comprising: a substrate (101), a membrane (102) attached to the substrate (101), and an electrode (104) attached to the substrate ( 101 ), wherein the membrane ( 102 ) and the electrode ( 104 ) have t...  
WO/2009/073325A1
A three-dimensional linkage assembly for an electroacoustic transducer comprises a first panel having a first structure and a first opening and a second panel having a second structure and a second opening. The first structure may be dis...  
WO/2006/123301A3
A micro-electro-mechanical transducer (such as a cMUT) is disclosed. The transducer (500) has a substrate (501), a top plate (540), a middle spring (520) layer therebetween. The substrate (501) and the middle spring layer (520) define ca...  
WO/2006/123300A3
A micro-electro-mechanical transducer (such as a cMUT) that has a movable mechanical part to transform energy. The transducer (511) has a substrate (501), a top plate (540), and a resilient structure (520) therebetween. The resilient str...  
WO/2009/051850A1
A microphone for transducing between an acoustical signal and an electrical signal, comprises a housing and a motor assembly disposed within the housing. The motor assembly includes a backplate and a diaphragm attached to the backplate v...  
WO/2006/134580A3
A micro-electro-mechanical transducer (such as a cMUT) having two electrodes 810, 840 separated by an insulator 830 with an insulation extension 840 is disclosed The two electrodes 810, 840 define a transducing gap therebetween The insul...  
WO/2009/044506A1
A natural fiber is beaten by a biaxial kneading machine. The beaten natural fiber is made finer by a bead mill so that it has a BET specific surface area of not less than 1 m2/g. By this process, a fine fiber for obtaining a rigid paper-...  
WO/2009/034627A1
A magnetic circuit for a speaker, capable of reducing generation of a magnetic flux if thinned to obtain sufficient flux density in a magnetic gap, especially at a position where a voice coil is supported. The magnetic circuit (11) for t...  
WO/2009/013852A1
A voice coil wound up in loop shape having the inside is secured to a vibration cone which vibrates in the vibrating direction. A first magnet having a first magnetic pole face is attached to an upper case, and a second magnet having a s...  
WO/2009/014118A1
Provided is an MEMS sensor comprising a substrate, a lower thin film arranged to confront one face of the substrate with a space therebetween and having a plurality of lower through holes extending in the thickness direction thereof, and...  
WO/2007/098334A3
A seal consists of an annular thermoplastic body having a relatively thinner annular base and a relatively thicker, compressible annular bead. The annular body has a shape that corresponds to a mounting surface of a loudspeaker. A surfac...  
WO/2009/008173A1
This invention provides a diaphragm for a speaker, comprising a woven fabric comprising an impregnated heat curing resin in a heat cured state, and a paper board, which has been integrated with the backside of the woven fabric by polymer...  
WO/2009/004518A1
A membrane 103 for an acoustic device 100 is provided, the membrane 103, wherein the membrane 103 comprises a central portion 212, an annular portion 105, and a corrugation 107, wherein the annular portion 105 is arranged around the cent...  
WO/2006/116047A3
A wireless disk drive head suspension flexure (10) including a slider receiving member (36) and a deflectable and resilient slider engagement member (54) for releasably mounting a head slider (18) to the slider receiving member. In one e...  
WO/2008/093011A3
The invention relates to a method for adjusting to a desired value (Y) the dimension of an air gap (38) defined between the fixed core (34) and the mobile core (36) of an electromagnet (30) for an electromechanical horn (10) comprising a...  
WO/2008/014274A3
A mounting arm (!5) for a hard disk drive having a generally planar region, the mounting arm having at least one striation (17) formed on the generally planar region to provide compressive residual stress with desirable shape characteris...  
WO/2008/129695A1
A diaphragm being in a definite shape provided with a convex part and a concave part located in the opposite side to the convex part, which has a first face having the convex part and a second face having the concave part and being locat...  
WO/2008/103723A1
A loudspeaker design delivers improved efficiency by reducing the power required from an audio source to produce sound. The loudspeaker includes a magnet housing, at least two magnets and a magnetic flux collector. The magnetic flux coll...  
WO/2008/093011A2
The invention relates to a method for adjusting to a desired value (Y) the dimension of an air gap (38) defined between the fixed core (34) and the mobile core (36) of an electromagnet (30) for an electromechanical horn (10) comprising a...  
WO/2008/084641A1
A diaphragm for a speaker (1) is formed of a composite (15) containing a resin (16) and a bamboo fiber (17) included therein. This constitution can provide a diaphragm (1) which can simultaneously realize advantages of the bamboo fiber (...  
WO/2008/068740A2
A magnetic stripe reading device including a magnetic head assembly including a mounting element, at least one information reading sensor having output contacts, the sensor being mounted in the mounting element and a flat cable coupled t...  
WO/2008/068349A1
The invention relates to an electro-acoustic transducer having a membrane (10). The membrane (10) has a first and a second region (20, 30), wherein the hardness, stiffness, or compliance of the first region (20) differs from that of the ...  
WO/2008/062850A1
A voice input device includes a first microphone (710-1) with a first vibrating membrane, a second microphone (710-2) with a second vibrating membrane, and a difference signal generating unit (720) that generates a difference signal betw...  
WO/2008/062848A1
A voice input device includes a first microphone (710-1) with a first vibrating membrane, a second microphone (710-2) with a second vibrating membrane, and a difference signal generating unit (720) that generates a difference signal betw...  
WO/2008/064313A1
A mechanically interlocked acoustic radiator/surround assembly is disclosed wherein an edge of the acoustic radiator includes a protrusion extending from and/or a depression in a surface of the acoustic radiator. An elastomeric material ...  

Matches 351 - 400 out of 6,658