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| Number | Title | Issue Date |
| 7912242 | Speaker apparatus and terminal member A frame has a slide hole and a receiving hole made close to an end of the slide hole. A terminal member has a protrusion protruding from a face making contact with the speaker frame, and a claw projecting in a direction approximately perpendicular to a protruding di... | 03/22/2011 |
| 7881490 | Speaker device A speaker device includes a magnetic circuit, a vibration system, a frame and a terminal. The frame is formed into a frame shape, and an inner wall thereof holds the magnetic circuit. Particularly, the frame has an opening for ventilation, which makes a rear surface... | 02/01/2011 |
| 7792320 | Loudspeaker with field replaceable parts and method of assembly A loudspeaker and method of assembly according to this invention provides for precise alignment between the frame and motor structure before they are connected to one another, and employs a fixture to form the moving assembly of the speaker, i.e. the voice coil, upp... | 09/07/2010 |
| 7720248 | Frame for speaker device and speaker device A frame for a speaker device includes a magnetic circuit housing unit which houses a magnetic circuit, an annular outer peripheral portion which is arranged on an outer side of the magnetic circuit housing unit, and plural arm portions which connect the magnetic cir... | 05/18/2010 |
| 7672473 | Loudspeaker In a loudspeaker, a lead wire of a voice coil is fastened to a diaphragm, and is extended along the diaphragm. A bottom surface of a frame supporting the diaphragm is placed so as to face against a rear surface of the diaphragm. A protrusion is formed on the bottom ... | 03/02/2010 |
| 7668333 | Speaker frame and speaker device having a speaker frame A speaker frame comprising: a rear end wall; a damper support portion; an edge support portion to which an edge as an outer circumferential portion of a vibration plate is to be stuck and fixed; and plural frame arms which connect the edge support portion to the rea... | 02/23/2010 |
| 7627134 | Magnet retention system in planar loudspeakers An electro-dynamic loudspeaker includes a frame, a magnet and a diaphragm. The frame includes a body portion defining a magnet mounting surface as well as a plurality of protrusions extending from the magnet mounting surface. The magnet is magnetically attracted to ... | 12/01/2009 |
| 7436088 | Electromagnetic exciter An electromagnetic exciter includes a magnetic circuit device composed of an outer yoke, a flat magnet arranged within the outer yoke, and an inner yoke mounted on the magnet, and a casing within which the magnetic circuit device is contained. The casing has a flat ... | 10/14/2008 |
| 7360626 | Audio speaker with wobble free voice coil movement A speaker that is designed to substantially eliminate wobble of the voice coil during operation, and thus remove that source of distortion and early failure of the speaker. This is accomplished with the creation of triangular ring that extends upward from the top ed... | 04/22/2008 |
| 7357218 | Frame for speaker device and speaker device A speaker device includes a magnetic circuit system and a vibration system including a frame. The frame has a magnetic circuit housing unit housing the magnetic circuit, an outer peripheral portion arranged on an outer side thereof and having an annular shape, and p... | 04/15/2008 |
| 7336798 | Speaker apparatus and method of manufacturing the same A frame with a pot type yoke incorporated therein is held on a seating base, and an adhesive supplying means is disposed at a position located in close proximity to this seating base. A supply head of this adhesive supplying means has its supply port opposing an end... | 02/26/2008 |
| 7331420 | Frame for speaker device and speaker device A frame for a speaker device includes a magnetic circuit housing unit which houses a magnetic circuit, a substantially annular outer peripheral portion which is arranged on an outer side of the magnetic circuit housing unit, and plural arm portions which connect the... | 02/19/2008 |
| 7298861 | Loudspeaker A loudspeaker includes a housing with front and rear sides, a diagram flexibly connected to the housing, and an actuator or displacing the diaphragm with respect to the housing along a translation axis. The housing extends around the translation axis and includes a ... | 11/20/2007 |
| 7263198 | Loudspeaker A loudspeaker comprises a frame, a magnetic circuit unit, a vibration unit and a snap fastening device. The frame has a recess. The magnetic circuit unit is received in the recess of the frame. The magnetic circuit unit includes a yoke. The vibration unit is receive... | 08/28/2007 |
| 7233681 | Electromagnetic transducer with eccentrically mounted voice coil former An electromagnetic transducer such as an audio speaker which includes an asymmetric diaphragm to deliver smooth frequency response with reduced distortion by reduction of common modes in the diaphragm. Other benefits such as asymmetric directivity patterns can be re... | 06/19/2007 |
| 7184567 | Thin speaker and method of manufacturing the speaker A thin speaker having a magnetic circuit (2) disposed at the front of a cone-like diaphragm, wherein an internal magnetic type magnetic circuit (2) and a vibration system are supported by a sufficiently strong frame formed of two pieces having an outli... | 02/27/2007 |
| 7184568 | [Speaker] A speaker having a locating ring mounted in an accommodating open chamber inside a basket to hold down a damper is disclosed. The basket has an annular bottom rib protruded from the bottom side of the accommodating open chamber around the center of the basket, and a... | 02/27/2007 |
| 7181040 | Case for containing electrical instrument A case for containing an electrical instrument, comprises a frame having a peripheral wall portion, a cover member having a peripheral wall portion fitted on the peripheral wall portion of said frame and configured to form a space for containing the electrical instr... | 02/20/2007 |
| 7164777 | Speaker driver with detachable motor and basket A speaker driver has a detachable motor and basket to allow attachment or separation of the motor assembly from the basket assembly. Two embodiments are disclosed, a thread-on detachable motor and a bolt-on detachable motor. ... | 01/16/2007 |
| 7151840 | Magnet system of a sound transducer A miniaturized electro-dynamic sound transducer has a housing made of deep drawn sheet metal. A magnet system with a magnet is arranged in the housing. A diaphragm provided with a coil is arranged in the housing, and wires extend from the coil to contacts. The housi... | 12/19/2006 |
| 7120270 | Audio device heat transferring An acoustic device having a heat producing device, such as an amplifier and a heat sink for transferring heat from the amplifier. The acoustic device has a cone having an inner surface, and a support structure defining a volume. The heat producing element and the he... | 10/10/2006 |
| 7103195 | Speaker unit There is provided a speaker unit comprising: an elliptical vibrating diaphragm; a cylindrical voice coil secured at one end thereof on the center of the elliptical vibrating diaphragm; a frame structure for movably supporting the vibrating diaphragm, said frame stru... | 09/05/2006 |
| 7079665 | Loudspeaker A loudspeaker has a magnetic circuit, a plastic frame to be coupled with the magnetic circuit, a voice coil disposed in a magnetic gap of the magnetic circuit, and a diaphragm connected with the voice coil. The frame and the magnetic circuit are coupled together by ... | 07/18/2006 |
| 7031487 | Tabbed speaker frame with oversized diaphragm An acoustical transducer such as an audio loudspeaker or a microphone, having a suspension component whose outermost edge extends axially rather than radially and couples with an axial mounting surface in the transducer's frame rather than with a radial flat surface... | 04/18/2006 |
| 7031490 | Speaker driver with detachable motor and basket A speaker driver has a detachable motor and basket to allow attachment or separation of the motor assembly from the basket assembly. Two embodiments are disclosed, a thread-on detachable motor and a bolt-on detachable motor. ... | 04/18/2006 |
| 7025170 | Speaker A speaker in which the basket holding the voice coil, cone and damper has a ribbed top flange and a ribbed bottom flange, a gasket is capped on the suspension of the cone at the ribbed top flange and fastened thereto with screws without the use of glue, and a holder... | 04/11/2006 |
| 7020295 | Piezoelectric electroacoustic transducer and manufacturing method of the same A piezoelectric electroacoustic transducer includes a substantially rectangular piezoelectric diaphragm having electrodes and flexurally vibrating in response to application of an alternating signal between the electrodes, a resin case having a supporting member dis... | 03/28/2006 |
| 6934399 | Piston-type panel-form loudspeaker A panel-form loudspeaker includes a radiating panel, a frame, a suspension unit, a transducer and a linkage unit. The frame is used for supporting and positioning the radiating panel. The suspension unit is disposed between the frame and the bottom periphery of the ... | 08/23/2005 |
| 6879700 | Speaker and its production method of the same A speaker and its production method in which productivity can be enhanced and characteristics can be easily improved. A frame 14 of a speaker 10 is divided into a first frame body 15 and a second frame body 44 and the first and second fra... | 04/12/2005 |
| 6819773 | Loudspeaker with a three-dimensional diaphragm An electro-dynamic loudspeaker includes a chassis (2), a three-dimensional diaphragm (8) and an electromagnetic actuator (6). The diaphragm is connected to the chassis by a first flexible connection (18) provided near a front part (8 | 11/16/2004 |
| 6810129 | Waterproof speaker for use in an automobile A damper-mounting wall portion 40 which is provided on a small-diameter end of a trumpet-shape part of a frame 1 so as to extend in a diametrically inward direction is formed with an outside diameter which is larger than a diameter of a damper 8 | 10/26/2004 |
| 6766027 | Elliptical flushmount speaker An elliptical speaker system is provided for in-wall/in-ceiling mounting. The speaker system comprises an elliptical speaker frame or bracket defining a speaker front plane having a generally arcuate inner surface. First and second speaker components are mounted wit... | 07/20/2004 |
| 6757402 | Knockdown speaker A knockdown speaker. The speaker includes a magnetic circuit base, a casing, and a vibration unit. The magnetic circuit base is substantially a hollow body having a central projecting cylinder and fixing holes in its top rim. The vibration unit is composed of a funn... | 06/29/2004 |
| 6731773 | Dual basket speaker with replaceable, self-aligning cone assembly and super ventilated pole piece A speaker with a replaceable cone assembly. The motor assembly has its own basket, which is mounted in the enclosure. The cone assembly also has its own basket, which fits inside the motor basket. In the event of damage or malfunction in the cone or coil, the entire... | 05/04/2004 |
| 6643381 | Sound quality improving mechanism for loudspeaker A sound quality improving mechanism for a loudspeaker is proposed, in which a hollow annular component is deposited with a vibration-absorbing material therein. A plurality of conductive components are each disposed in a manner as to penetrate the hollow ... | 11/04/2003 |
| 6567529 | Low frequency loudspeaker driver having a polygonal diaphragm and method for mounting drivers in a tightly packed two-dimensional array A low frequency loudspeaker driver has polygonal diaphragm surfaces. In a first embodiment, the peripheral edge of a loudspeaker driver diaphragm is polygonal, preferably hexagonal or six sided, wherein each of the six peripheral sides are of equal length... | 05/20/2003 |
| 6233346 | Surface-mounted electromagnetic sound generator A surface-mounted electromagnetic sound generator generates sound by causing a vibration plate to vibrate by an electromagnet which includes a yoke and a coil housed in a case. The yoke has a magnetic-circuit board an outer circumferential portion of whic... | 05/15/2001 |
| 6219431 | Loudspeaker with improved cooling structure A loudspeaker comprises a frame mounted to a motor structure, an upper suspension connected between the voice coil of the motor structure and the frame, and, a lower suspension extending from the voice coil to the frame in position to form a cavity betwee... | 04/17/2001 |
| 6094497 | Loudspeaker system having back pressure equalization The loudspeaker system having back pressure equalization apparatus functions to minimize the mismatch between the forward sound wave and the reverse sound wave that is generated by the loudspeaker by rotating the apertures that are formed in the basket to... | 07/25/2000 |
| 5969298 | Compression driver A loudspeaker clamping structure embodying an improved compression driver is provided. The clamping structure is configured to utilize a totality of the air contained within a cover coupled to a magnet structure of a loudspeaker. The clamping structure in... | 10/19/1999 |
