Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 601 - 650 out of 6,614

Document Document Title
WO/1999/022882A1
A high quality electric-mechanical-acoustic transducer used mainly in mobile phones which is not damaged and degraded in performance by drop and impact. The transducer comprises at least one suspension (14) that supports a movable sectio...  
WO1999008474A3
The present invention consists of an improved distortion reduction cap and center pole speaker assembly and an improved method of coupling the cap to a speaker center pole. The cap includes an axial flare which is stretched over and pres...  
WO/1999/008474A2
The present invention consists of an improved distortion reduction cap and center pole speaker assembly and an improved method of coupling the cap to a speaker center pole. The cap includes an axial flare which is stretched over and pres...  
WO/1998/058520A1
A tweeter has its voice coil former and diaphragm integrally formed as a single unit. The magnet, pole piece and plate are encapsulated as a complete magnetic circuit in an injection moulded casing. A robust, inexpensive and easy to manu...  
WO1998041055A3  
WO/1998/053640A1
Flat knitted tinsel wires (2h) are sewn on a base cloth (B) of a conductive suspension (1) with a sewing thread (3) and the ends (2ha, 2hb) of the flat knitted tinsel wires extend outward from the conductive suspension (1). In this suspe...  
WO/1998/041055A2
The invention relates to a loudspeaker with a cone (2) and beading (4) connected thereto (2). Said beading consists of a sprayable plastic layer which is soft in a solid state. An open negative mould (16) is used in the method to produce...  
WO/1998/037388A1
Multiple embodiments of a solid state condenser transducer, and methods of manufacture, are disclosed. The transducer (10) comprises a semi-conductor substrate forming a frame (11) and having an opening, a thin-film cantilever structure ...  
WO1998019140A3  
WO1998010252A3  
WO/1998/019140A2
A silicon substrate (1) comprising an integrated doped area (5), a spacing layer (7) with an etched out cavity (8) and a membrane (2) placed on top on the spacing layer. The doped area and the membrane are electronically connected to ele...  
WO/1998/010252A2
A capacitive electroacoustic transducer (10) which includes an electrically insulative substrate (19), a layer of conductive material disposed (16) on a portion of a top surface of the substrate forming a first electrode of the transduce...  
WO/1997/039464A1
A method of making an electret microphone comprising juxtaposing a microphone membrane unit (30) and a microphone back plate (32), at least one of which includes a micro-machined electret layer (6) formed on a support structure, thereby ...  
WO1997009842A3  
WO/1997/016049A1
A sound transducer made of polyvinylidene fluoride (PVDF) and a method for making and integrating same into a card designed to generate acoustic signals for transmission over a telephone line, are disclosed. The method mainly comprises f...  
WO/1997/009842A2
Acoustic device (81) including a member (2) extending transversely of its thickness and capable of sustaining bending waves at least over an intendedly consequentially acoustically active area of the transverse extent of said member, the...  
WO/1997/003537A1
An improved surround design (70) for a loudspeaker assembly is disclosed wherein the outside edge of the surround is attached to the outer edge of the loudspeaker's frame (52) via a permanent (adhesive) or removable element (80). When re...  
WO/1995/026616A1
A method of making a woven spider (40) comprising selecting a thread (60) of the cloth (70) from which the spider (40) is to be woven, wrapping the selected thread (60) with an electrical conductor (66) and weaving the wrapped (66) threa...  
WO/1995/011579A1
A method of assembling an annular magnet (16) and a pole piece (14) in a chamber (22) of a cyclindrical core (12) at a predetermined height is disclosed. The magnet assembly tool (50) has a firstportion (52) with a diameter of approximat...  
WO/1995/001079A1
A folded dielectric film element functioning as an energy converter, consisting of a dielectric film (1, 2) bent into folds (L) and provided with electrodes (K). The electrodes (K) are so arranged in the folds (L), different electrodes b...  
WO/1994/016826A1
An ultrasonic transducer array (10), and a method for manufacturing it, having a plurality of transducer elements (12) aligned along an array axis (A) in an imaging plane. Each transducer element (12) includes a piezoelectric layer (22) ...  
WO/1993/023966A1
A loudspeaker cone assembly having a generally conical speaker cone body (12) and an annular flexible suspension rim (14). The suspension rim (14) may include an annular integral gasket (20), and is formed from a plastic foam which may b...  
WO/1993/020667A1
A transducer for use in an active noise cancellation system is particularly adapted for use as a motor vehicle exhaust muffler (12) by physically designing the transducer (32) to optimize magnetic flux with increases in temperature throu...  
WO/1993/018627A1
An electret microphone assembly, such as for a hearing aid comprises an electret microphone having a diaphragm and a charged plate, a substrate spaced from the charged plate, and a wire loop having first and second ends and a mid-portion...  
WO/1993/014608A1
A method of making a loudspeaker cone and surround assembly comprises clamping at least the outer marginal edge of a cone in a mould having a cavity defining a surround and injecting an elastomeric material into the cavity through an ann...  
WO/1993/003586A1
A voice coil actuator (50) includes a magnetic flux conductive material core (52, 52'), having a backplate (53) and a magnet (54), and an electrical current conductive coil (56, 56'). The core (52, 52') has a first surface (58, 58', 58''...  
WO/1992/002108A1
The invention relates to a method for preparing films or membranes for acoustic applications, having improved vibratory properties, characterized in that a dispersion in a liquid of at least one macropolymer, particularly of at least one...  
WO/1991/006329A1
Anti-infection catheter arrangement comprising a catheter which has a rigid or flexible catheter tube with a connection piece at the distal end, characterized by a filling and suction device which can be attached to the connection piece ...  
WO/1990/012658A1
The acoustic sensor comprises a piezoelectric film (12) mounted on a support (14) and connected electrically to electrodes (16, 18) themselves connected by electric conductors (20, 22) to a measurement device. The assembly composed of th...  
WO/1988/006832A1
This invention provides a condenser microphone simply constructed without using a separately provided push-up cylinder that has hitherto been used for pressing the vibration diaphragm to give a predetermined tension thereto. In this micr...  
WO/1986/003928A1
The method of making the diaphragm (28) includes pressing on the front face of a film (11) at spaced apart areas to deform it progressively into a series of closely-spaced generally U-shaped projections (P). A manufacturing device presse...  
WO/1986/001968A1
An electret sheet (25) is clamped on an apertured support (20) around the aperture (21) so that a sheet portion stretches all across the aperture. A tension-producing ring (60) is advanced against the sheet portion normal to its stretch ...  
WO/1984/001683A1
Diaphragm stretching apparatus to be placed in electrostatic loudspeakers, consisting of a foundation plate (e) and a hinged metal frame (d) on which a stator panel (c) is attached. In flatable rubber tubes (f) connected to each other in...  
WO/1984/000662A1
A transducer embodying the present invention is assembled on a discrete electrically conductive frame (100) that has been formed to provide both leads (120-140) and a backplate (110). An integrated circuit chip (200) is bonded to one of ...  
JP2019514299A
騒音遮蔽イヤーセット及びその製造方法が開 示される。本発明による騒音遮蔽イヤーセッ トは、バックホール(Back Hole)を形成させたドライバーユニット と、ド...  
JP6521417B2  
JP2019080155A
[Subject] An electronic device which a miniaturization of electronic parts is possible and can manufacture connection structure of an external terminal and an electrode of electronic parts simple, and a manufacturing method for the same ...  
JP2019080312A
[Subject] A speaker assembly method which has a closed-down type thin film which minimizes an opening and relative distance of a voice coil in an opening by a method which maximizes speaker performance though speaker cost and volume are ...  
JP2019075615A
[Subject] Suitable shape of a signal wire in a small speaker is provided. [Means for Solution] Magnetic circuit 110, voice coil object 120, and diaphragm 130 attached to voice coil object 120, Case 140 which stores magnetic circuit 110 a...  
JP2019512960A
[Subject] The present invention satisfies requirements called collection of electric capacity data, and it provides the timbal which can secure the reliability of collection of electric capacity data. [Means for Solution] A support membe...  
JP6509050B2  
JP2019068414A
[Subject] The transducer which can be manufactured without using vaporized type adhesives and an organic solvent is provided. [Means for Solution] Transducer 1 is provided with the following. The first electrode sheet 21 provided with a ...  
JP2019511014A
The present invention relates to a passivity type sound absorption machine (3, 4, 6, 7, 8) including a cave (30, 80) which carries out an opening outside via the input direction (D3), in order to form the Helmholtz resonance machine of t...  
JP2019054309A
[Subject] Offer of a diaphragm for speakers which a weight saving and high rigidity-ization are realized, and flexibility of tone control is large, and can secure humidity-tolerant reliability and intensity. [Means for Solution] Diaphrag...  
JP6496097B1
The ultrasonic transducer concerning the present invention has the 1st page that turns to the direction one side of board thickness, and the other side, respectively, and the 2nd page, and is an elastic board which can vibrate in the dir...  
JP6494248B2  
JP6495338B2  
JP2019047151A
[Subject] A weight saving and high rigidity-ization are realized at low cost eco-friendlily, and flexibility of tone control is large and it provides a diaphragm for speakers which can secure humidity-tolerant reliability and intensity. ...  
JP2019046948A
[Subject] Provide a manufacturing method of a piezoelectric element which can arrange a pillar-shaped detailed solid structure easily at a narrow interval. [Means for Solution] Solid structure 21 of a plurality of pillar-shaped piezo-ele...  
JP2019042872A
[Subject] Without being distorted even when sudden heat and rapid cooling are received at an assembly process or a mount process, it is structurally strong and enables it to acquire the stable characteristic. [Means for Solution] For exa...  

Matches 601 - 650 out of 6,614