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2016

19510100Energy converter, speaker, and method of manufacturing energy converter
29479874Speaker and edge structure thereof
39473838Dust protection of sound transducer
49445201Inverted dual coil transducer
59432775Energy conversion apparatus
69398376Electroacoustic transducer
79392370Voice coil speaker
89310485Compact, energy-efficient ultrasound imaging probes using CMUT arrays with integrated electronics
99294844Voice coil speaker
109277304Magnetic circuit for loudspeaker, and loudspeaker using same
119258648Levered loudspeakers
129241226Uncomfortableness threshold value estimation system and method, and a program thereof; hearing aid adjustment system; and uncomfortableness threshold value processing circuit
139241213Acoustic transducer

2015

149215533Uncomfortable sound pressure determination system, method and program thereof, hearing aid adjustment system, and uncomfortable sound pressure determination apparatus
159210512Flat-type speaker having plurality of magnetic circuits which are horizontally connected
169185493Method and apparatus for computing metric values for loudspeaker protection
179173036Manufacturing method for narrow-type diaphragm and thin-type diaphragm, speaker-use diaphragm manufactured using same manufacturing method, speaker, electronic apparatus, and movable device
189106987Handling power dissipation in a multi microspeaker module
198976627Micro-geophone
208947980Micro-geophone

2014

218855356Dual ring magnet apparatus
228842873Loudspeaker with an inverted motor
238737675Speaker unit including diaphragm having a voice coil attached thereto
248733494Coil retention systems for implantable medical devices
258677616Method for production of electrical conductors
268666104Lighting and audio communication system

2013

278406438Device and method for the excitation and/or damping and/or detection or structural oscillations of a plate-shaped device using a piezoelectric strip device
288385586Flat loudspeaker structure

2012

298340329Piezoelectric speaker
308305845Methods and systems for seismic signal detection
318300869Lighting and audio communication system
328295537Loudspeaker moment and torque balancing
338125852Methods and systems for seismic signal detection
348098546Geophone having improved sensitivity

2010

357773766Cord bush and control box for microphone

2009

367639566Geophone securement mechanism
377558399Vibrating plate of dynamic microphone and method of manufacturing the same
387508953Loudspeaker and components for use in construction thereof
397480390Loudspeaker edge

2008

407319772Speaker device for improving mid/high-range frequencies

2007

417289627Hinge, and opening/closing type portable terminal device having the same
427239712Inductor-based MEMS microphone

2006

437099235Geophone and method of manufacturing a geophone

2005

446965679Equalizable electro-acoustic device used in commercial panels and method for converting said panels
456961438Loudspeaker system having wide-directional characteristics
466956957Loudspeakers
476956953Electroacoustic transducer with field replaceable diaphragm carrying two interlaced coils, without manipulating any wires
486944310Speaker apparatus
496942741Iron alloy strip for voice coil motor magnetic circuits
506940992Push-push multiple magnetic air gap transducer
516940991Damper for loudspeaker and method for manufacturing same
526934402Planar-magnetic speakers with secondary magnetic structure
536931140Electro-acoustic transducer with two diaphragms
546929092Speaker diaphragm
556917690Electromagnetic transducer having multiple magnetic air gaps whose magnetic flux is in a same direction
566917270Electromagnetic actuator and structure for mounting the same
576914998Speaker apparatus
586912292Concentric co-planar multiband electro-acoustic converter
596909788Speaker voice coil bobbin and method of manufacturing same
606907955Electromagnetic electroacoustic transducer
616904158Speaker apparatus
626904154Acoustic device
636903474Electro-mechanical transducer
646901150Permanent magnet actuator with electric excitation coil, especially loudspeaker and mobile telephone
656899794Speaker device, and method and device for producing the same
666895378System and method for producing acoustic response predictions via a communications network
676895099Compact speaker for portable phone
686895097Planar type speaker and system using it
696888433Method for producing repulsion magnetic circuit and its production system
706876752Loudspeakers systems and components thereof
716873234Electromagnetic actuator mounting structure
726870941Dipole radiating dynamic speaker
736868167Audio speaker and method for assembling an audio speaker
746868165Loudspeaker
756867374Ceramic insulation coated electric wire self-fusing ceramic insulation coated electric wire coating composition and coil and voices coil for speaker
766865282Loudspeaker suspension for achieving very long excursion
776865281Liquid cooled speaker
786863152Low profile audio speaker
796862361Audio speaker
806859544Magnetic circuit for speaker, method of manufacture thereof, and speaker using same
816850138Vibration actuator having an elastic member between a suspension plate and a magnetic circuit device
826847726Shorting rings in dual-coil dual-gap loudspeaker drivers
836847139Multi-functional vibrating actuator
846845168Speaker for an electronic instrument
856842529Speaker
866839444Loudspeakers
876837333Loudspeaker system with forced air circulation and control circuit therefor

2004

886836551Loudspeaker
896829366Magnetic circuit and loudspeaker using the same
906819773Loudspeaker with a three-dimensional diaphragm
916817084Method for manufacturing a speaker apparatus
926814181Electrically conductive damper device for speaker
936810988Speaker's damper with lead wire and guide sleeve
946810129Waterproof speaker for use in an automobile
956810128Electromagnetic induction actuator and portable telecommunications equipment
966804369Electroacoustic transducer
976804368Micro-speaker and method for assembling a micro-speaker
986804366Speaker apparatus
996801635Speaker device
1006801634Loudspeaker coil suspension system
1016795564Energy converter with two coils and two magnetic gaps
1026795563Speaker for an electronic instrument
1036792125Pivotable speaker mounting apparatus
1046789643Butterfly damper
1056789642Display enclosure having thin speaker
1066788799Speaker device and associated method for manufacturing the speaker device
1076782111Multiple voicecoil and driver transducing
1086778677Repairable electromagnetic linear motor for loudspeakers and the like
1096774510Electromagnetic motor with flux stabilization ring, saturation tips, and radiator
1106772855Damper for speaker and method of producing the same
1116771792Track-shaped loudspeaker
1126771791Air pump speaker
1136768806Shorting rings in dual-coil dual-gap loudspeaker drivers
1146766034Multifunction acoustic device
1156763120Speaker
1166760462Planar diaphragm loudspeakers with non-uniform air resistive loading for low frequency modal control
1176760461Vehicle loudspeaker
1186757403Electroacoustic transducers
1196757402Knockdown speaker
1206754362Speaker and speaker system
1216751334Electromagnetic vibrator
1226751333Inertial vibration transducers
1236751332Speaker
1246751329Loudspeaker driver
1256744904Multifunction acoustic device
1266744895Loudspeaker
1276741721Informing apparatus for mobile communication apparatus
1286741151Moving coil linear actuator
1296739424Speaker system
1306738490Loudspeaker with independent magnetic dampening and excursion control
1316738489Vibration speaker
1326735323Speaker
1336735322Speaker
1346731773Dual basket speaker with replaceable, self-aligning cone assembly and super ventilated pole piece
1356731762Wireless microphone having a charger circuit and a transmitter circuit that share a common conductor pair
1366724909Speaker apparatus
1376723913Fan cooling of active speakers
1386721435Acoustic loudspeaker with energy absorbing bearing and voice coil, and selective sound dampening and dispersion
1396714656Loudspeaker system with dust protection
1406714655Speaker
1416711274Compound speaker for a portable communication device
1426711269Multifunction acoustic device
1436708797Display enclosure having thin speaker
1446704430Electroacoustic transducer
1456700988Speaker spider with integral lead wire arrangement and manufacturing method thereof
1466694039Loudspeaker
1476694037Spider-less loudspeaker with active restoring apparatus
1486690809Microspeaker
1496681027Magnetic core for speaker
1506681026Rectangular transducer for panel-form loudspeaker
1516681025Electromechanical and electroacoustic transducer
1526678387Loudspeaker having cooling system
1536674872Speaker
1546674871Positioning device for diaphragm for speakers
1556674197Electromagnetic sound generator
1566672423Speaker and method of assembling the speaker

2003

1576671385Speaker and magnetic circuit used for the speaker
1586668066Electroacoustic transducer with small dimensions
1596665416Speaker with built-in direct current motor
1606665415Loudspeaker overcurrent protection
1616665414Speaker system and cooling device therefor
1626661903Loudspeaker
1636661902Loudspeaker with a front-mounted sealing element and method of manufacturing the same
1646661898Speaker for an electronic instrument
1656658134Shock improvement for an electroacoustic transducer
1666654476Low cost broad range loudspeaker and system
1676654475Electricity-to-sound transducer
1686653934Electro-magnetic audio transducer for surface-mounted devices
1696652046Loudspeaker box arrangement and method for the positional adjustment of individual loudspeaker boxes therein
1706647124Loudspeaker with coaxial magnetic circuit for high-pitch sound and low-pitch sound
1716647122Loudspeaker drive unit
1726646507Power booster amplifier
1736643381Sound quality improving mechanism for loudspeaker
1746639995Concentric magnetic configuration for loudspeakers
1756639994Loudspeaker having adjustable motor strength
1766639993Loudspeaker with low distortion and high output power
1776639992Multifunction acoustic device
1786639991Electroacoustic transducer
1796636612Speaker for use in confined spaces
1806636611Combined receiver and speaker
1816633649Quick release spider clamp for loudspeakers
1826628790Apparatus for on-ear operation and off-ear operation with two sound reproduction transducers
1836622817Sound reproduction device working according to the bending wave principle
1846621912Speaker
1856621911Multifunction acoustic device
1866618487Electro-dynamic exciter
1876611606Compact high performance speaker
1886611605Speaker having a device capable of generating sound and vibration
1896611604Ultra low frequency transducer and loud speaker comprising same
1906608541Electromagnetic actuator
1916606390Loudspeakers
1926601645Speaker heat sink
1936600399Transducer motor/generator assembly
1946597796Microphone with a variable resistance switch
1956594372Electroacoustic transducer
1966593847Planar acoustic converting apparatus
1976590994Linear vibrating device and speaker equipped with the same
1986590990Speaker apparatus
1996587571Speaker
2006587570Electroacoustic transducer
2016580803Structure for changing sound quality of speaker
2026580799Keyboard comprising a loudspeaker
2036578661Speaker apparatus
2046570995Speaker device
2056570994Field layer speaker for consumer products
2066570993Electric-mechanical-acoustic converter and method for producing the same
2076568502Sounder, speaker and sound head using the sounder
2086567528Offset apex spider
2096563932Magnet system for loudspeakers
2106553126Micro speaker
2116553125Multiple-function convertor for converting electric signals to vibration of elements of a portable electronic instrument
2126549637Loudspeaker with differential flow vent means
2136549632Microphone
2146546107Method and apparatus for controlling the propagation of magnetic fields by electrodynamic/magnetic transducers in telecommunication devices
2156542617Speaker
2166537234Vibration transducer
2176535613Air flow control device for loudspeaker
2186529611Multifunction acoustic device
2196526152Electroacoustic transducer having a moving coil and elastic holding elements for the connecting leads of the moving coil
2206526151High stability loudspeaker
2216519349Loudspeaker
2226519347Panel-form loudspeakers
2236516071Structure of a picture-frame type loudspeaker
2246513623Speaker

2002

2256501844Loudspeaker and method of assembling same
2266496590Loudspeaker with improved diaphragm
2276494289Device for dynamic excitation of panel loudspeakers
2286490363Structure of speaker
2296488465Technique for nesting articles
2306487300Vibration speaker
2316484844Speaker
2326480614Planar acoustic transducer
2336477257Directional microphone
2346466682Vibration speaker
2356466676Compound driver for acoustical applications
2366449376Planar-type loudspeaker with at least two diaphragms
2376449375Loudspeaker spider with regressive rolls
2386445803Speaker
2396438246Speaker apparatus
2406430300Cooling mechanism for an audio speaker
2416421449Speaker
2426415037Speaker and the manufacturing method thereof
2436404896Electric-acoustic transducer having dual voice coil drivers
2446404894Packaging
2456400825Microspeaker
2466399870Musical instruments incorporating loudspeakers
2476394224Structure of speaker
2486393132Speaker
2496390231Loudspeaker with directed airflow cooling
2506385327Device having two coaxially disposed bodies which are movable relative to one another along a translation axis
2516385324Broadband loudspeaker
2526377145Vibration actuator having magnetic circuit elastically supported by a spiral damper with increased compliance
2536373959Electroacoustic transducer
2546373957Loudspeaker structure
2556373362Signal converter
2566370257Apparatus including an electroacoustic transducer having terminal contacts which extend in the direction of the transducer axis and including a printed circuit board having mating contacts
2576359997Loudspeaker having radially magnetized magnetic ring
2586359996Speaker device
2596359541Surface-mounted electromagnetic sound generator
2606351544Regressively hinged spider
2616351542Loudspeakers with panel-form acoustic radiating elements
2626347149Driver for a flat acoustic panel
2636343136Speaker apparatus and manufacturing method thereof
2646343128Dual cone loudspeaker
2656342831Electronic apparatus
2666341167Speaker

2001

2676333575Vibration exciter
2686332262Method of fabricating a loudspeaker suspension device
2696330340Loudspeaker with a diaphragm having integral vent bores
2706327371Loudspeaker with cooling adapter
2716327369Loudspeakers comprising panel-form acoustic radiating elements
2726321070Portable electronic device with a speaker assembly
2736320967Passenger vehicles incorporating loudspeakers comprising panel-form acoustic radiating elements
2746312552Curable resin composition, adhesive composition, bonded product, speaker and bonding method
2756308960V-lock segmented speaker gasket
2766307942Panel-form microphones
2776304661Loudspeakers comprising panel-form acoustic radiating elements
2786292079Coil assembly of speaker
2796289106Cap and center pole apparatus and method of coupling
2806289101Telephone receiver having a hollow portion
2816285773Linear loudspeaker
2826285770Noticeboards incorporating loudspeakers
2836278787Loudspeakers
2846275598Sound reproduction device
2856269168Speaker apparatus
2866269167Loudspeaker spider, method of making it and loudspeaker incorporating it
2876266426Visual display means incorporating loudspeakers
2886263084Power amplifier and loudspeaker frame integration
2896259800Speaker and speaker apparatus
2906259799Speaker system
2916259798Passive radiator cooled electronics/heat sink housing for a powered speaker
2926243479Loudspeaker having pole piece with integral vent bores
2936243472Fully integrated amplified loudspeaker
2946237716Standard-sized vibrating diaphragm speaker structure
2956236733Loudspeaker
2966229903Mounting structure for electromagnetic sound generator
2976229902Loudspeaker with frame cooling structure
2986222931High power acoustical transducer
2996222929Speaker having middle-high sound speakers
3006219433Wax, copper foil flexible wire with wax and speakers using this flexible wire
3016219431Loudspeaker with improved cooling structure
3026219425Loudspeaker with heat radiating hole and electrical device employing the same
3036215887Thin type speaker having a secondary diaphragm
3046215881Ceiling tile loudspeaker
3056212284Sound reproduction device
3066208743Electrodynamic acoustic transducer with magnetic gap sealing
3076208742Electro-acoustic dynamic transducer system for use in a loud speaker
3086208237Electro-mechanical and acoustic transducer for portable terminal unit
3096205228Horn loaded pleated ribbon high frequency acoustic transducer with substantially uniform coupling
3106201878Portable compact disc player
3116198831Panel-form loudspeakers
3126192136Inertial vibration transducers
3136188775Panel-form loudspeakers
3146188774Loudspeaker
3156181799Greetings or the like card
3166178252Electroacoustic transducer comprising a diaphragm having through portions for mounting a voice coil
3176175637Acoustic transducer
3186173065Structure of speaker

2000

3196166146Curable resin composition, adhesive composition, bonded product, speaker and bonding method
3206158109Coil manufacturing method using ring shaped spacer
3216154556Dome speaker
3226151402Vibration transducers
3236148953Loudspeaker component and resin composition therefor
3246144753Damper for a speaker apparatus
3256134336Integrated speaker assembly of a portable electronic device
3266134332Sound lens speaker system
3276130955Voice coil assembly
3286130952Microphone
3296128393Microphone with shock-resistant means
3306122389Flush mounted directional microphone
3316118884Audio voice coil adaptor ring
3326115479Wax, copper foil flexible wire with wax and speakers using this flexible wire
3336111972Diffusing volume electroacoustic transducer
3346111970Suspension for high power pleated ribbon transducer
3356111969High fidelity, broad band acoustic loudspeaker
3366097828Electroacoustic transducer
3376095278Base for holding the tweeter of a speaker
3386091828Dynamic microphone
3396088466Audio voice coil adaptor ring
3406075866Electroacoustic transducer having axially extending corrugated supporting means for the diaphragm
3416072886Electroacoustic transducer comprising spring contacts formed with at least one bend
3426069965Loudspeaker
3436067365Loudspeaker
3446064894Portable radio telephone having improved speaker and housing assembly for handsfree and private operation
3456061461Audio transducer
3466038327Electroacoustic transducer comprising a closing member for closing the rear volume of the transducer
3476031925Telescoping loudspeaker has multiple voice coils
3486031920Coaxial dual-parabolic sound lens speaker system
3496020805Permanent magnet assembly

1999

3506008714Thin-Structured electromagnetic transducer
3516005957Loudspeaker pressure plate
3526003766Vending machine
3535995635Sound pickup and amplifier apparatus for vibrating strings
3545991424Planar diaphragm speaker with heat dissipator
3555987148Driver for a horn radiator
3565970158Compact horn speaker
3575969298Compression driver
3585966797Method of manufacturing a damper for a loudspeaker
3595953438Planar electromagnetic transducer
3605953436Apparatus for generating an audible tone
3615940522Speaker with passive voice coil cooling
3625937076Magnetic drive apparatus and method for manufacturing coil that forms the apparatus
3635933512Double cone-type loudspeaker
3645933508Horn speaker system
3655920638Structure of speaker
3665909499Speaker with magnetic structure for damping coil displacement
3675909015Self-cooled loudspeaker
3685909014Low frequency equaphase surround loudspeaker
3695905805Electrodynamic transducer
3705903656Monitor has tubular loudspeaker reducing CRT's mask vibrations
3715898786Loudspeakers
3725898244Dual-directional field coil actuator
3735894524High power tweeter
3745894263Vibration generating apparatus
3755892184Passive radiator and system comprising the passive radiator
3765878150Damper for a loudspeaker and a method for producing the same
3775878149Loudspeaker having a yoke, magnet, cylindrical throat, and spacer plate configuration
3785878148Compression driver
3795872855Multiple voice coil, multiple function loudspeaker
3805862242Speaker
3815859917Flush-mount swivel tweeter system for vehicular audio

1998

3825850462Speaker component, speaker, and its manufacturing method
3835848174Linear movement speaker system
3845848173Surroundless loudspeaker
3855847333Electrodynamic loudspeaker and system comprising the loudspeaker
3865841880Multi-point drive type speaker
3875838809Speaker
3885835612Speaker apparatus
3895832096Speaker containing dual coil
3905828767Inductive braking in a dual coil speaker driver unit
3915825297Taut armature reciprocating impulse transducer
3925815587Loudspeaker with short circuit rings at the voice coil
3935812689Low-powered loud speaker provided with echo generator
3945809157Electromagnetic linear drive
3955802191Loudspeakers, systems, and components thereof
3965790682Damper for speaker
3975786741Polygon magnet structure for voice coil actuator
3985784478Audible environment awareness restoring device
3995784471Hearing aid with an electrodynamic acoustic transducer
4005776597Speaker damper
4015768395Double ended field coil actuator
4025764784Electroacoustic transducer
4035760501Compression driver motor structure
4045757946Magnetic fluid loudspeaker assembly with ported enclosure
4055757945Terminal for speaker
4065757942Speaker unit with an improved acoustic equalizer
4075751828Magnetic circuit unit for loud-speaker and method of manufacturing the same
4085748760Dual coil drive with multipurpose housing
4095748759Loud speaker structure
4105742561Transversely driven piston transducer
4115740265Loudspeaker unit and loudspeaker system employing the unit
4125740264Miniature electroacoustic transducer
4135739480Speaker base for alternatively mounting different drivers
4145734734Audio voice coil adaptor ring
4155729617Magnet system
4165729616Centering diaphragm
4175727077Electroacoustic transducer comprising a closing member
4185721379Electromagnetic acoustic transducers
4195719946Loudspeaker for higher audio frequencies and a manufacturing method thereof
4205717775Voice coil and loudspeaker structure
4215715324Speaker having magnetic circuit
4225714722Loudspeaker
4235712598Driving apparatus for electrostatic converting means

1997

4245701657Method of manufacturing a repulsion magnetic circuit type loudspeaker
4255701358Isobaric loudspeaker
4265701357Loudspeaker structure with a diffuser
4275699439Loudspeakers
4285689573Frequency-dependent amplitude modification devices for acoustic sources
4295687248Light weight and low magnetic leakage loudspeaker
4305687244Bone conduction speaker and mounting system
4315682436Multipoint driving loudspeaker having repulsion magnetic-type driving unit
4325675885Method of winding a coil for an electroacoustic transducer
4335673330Microphone transducer with noise reducing member
4345668886Loudspeaker structure
4355664024Loudspeaker
4365664023Low TCR wire in high power audio coils
4375647014Voice coil support for loudspeaker
4385642333Electroacoustic transducer and method of winding coil therein
4395641910Electrodynamic transducer shaker and method for its manufacture
4405635686Composite speaker system having a directional adjustable tweeter
4415629501Composite speaker system having a directional adjustable transducer
4425625699Speaker device
4435604815Single magnet audio transducer and method of manufacturing
4445602931Connection line
4455602930Loudspeaker
4465598625Method for assembly of radial magnet voice coil actuators
4475594805Loudspeaker

1996

4485590211Microphone
4495590210Loudspeaker structure and method of assembling loudspeaker
4505583945Speaker with a molded plastic frame including a positioning projection, and a method for manufacturing the same
4515583944Speaker
4525581624Loudspeaker suitable for high-temperature use having a non-adhesive connection between the voice coil support and the loudspeaker diaphragm
4535550332Loudspeaker assembly
4545548657Compound loudspeaker drive unit
4555546470Loudspeaker
4565539262Axially focused radial magnet voice coil actuator
4575536984Voice coil actuator
4585533134Motional feedback loudspeaker apparatus having a coupling member for connecting a voice coil bobbin with a detecting coil bobbin
4595526441Full range convex electrodynamic loudspeaker
4605524151Electroacoustic transducer having a mask
4615512714Composite speaker system having a directional adjustable tweeter
4625511131Loudspeaker
4635499440Staking method
4645497428Self-cooled magnetic structure for loudspeakers
4655487114Magnetless speaker

1995

4665475765Improvements in or relating to loudspeakers
4675471437Electrodynamic acoustic transducer
4685461677Loudspeaker
4695452366Loudspeaker
4705446797Audio transducer with etched voice coil
4715440630Telephone receiver with electrostatic discharge prevention
4725434458Voice coil actuator
4735432758Electroacoustic transducer
4745430805Planar electromagnetic transducer
4755430804Loudspeaker with a coated voice coil
4765426707Electrodynamic loudspeaker with cooling arrangement
4775424496Electromagnetic converter
4785418860Voice coil excursion and amplitude gain control device
4795408533Motional feedback speaker system with radially polarized magnet and underhung voice-coil
4805402503Light-weight conical loudspeaker
4815396563Earphone
4825390257Light-weight speaker system
4835388992Method and apparatus for tactile transduction of acoustic signals from television receivers
4845383267Apparatus for centering an actuator coil
4855381483Minimal inductance electrodynamic transducer

1994

4865371806Loudspeaker
4875361304Headphone assemblies
4885357587Distortion reduction in loudspeakers
4895357586Flow-through air-cooled loudspeaker system
4905351220Moving-coil electrodynamic electroacoustical transducer
4915343533Transducer flux optimization
4925335287Loudspeaker utilizing magnetic liquid suspension of the voice coil
4935335284Coneless, no-moving-parts speaker
4945321763Body sense speaker
4955321762Voice coil actuator
4965317642Loudspeakers having torque drive radiators
4975315663Passive loudspeaker enclosure for a television receiver
4985303209Electroacoustic transducer having a partition wall and a mask wall
4995297214Loudspeaker structure
5005295195Magnetic circuit in a loudspeaker
5015288955Wind noise and vibration noise reducing microphone
5025287413Dual voice coil sound reproducing device
5035283836Planar speakers
5045282245Tubular bi-directional microphone with flared entries

1993

5055270676Method of making elements of a magnetic circuit in a loudspeaker
5065263093Microphone device in use in for communication apparatus for motorcycle
5075255328Dynamic microphone
5085249237Audio transducer improvements
5095249236Wiring structure of loudspeaker
5105246353Air breezing pump
5115243662Electrodynamic sound generator for hearing aids
5125243151Conical loudspeaker
5135243150Ribbon transducers
5145230021Audio transducer improvements
5155216723Permanent magnet transducing
5165214710Permanent magnet system with associated coil arrangement
5175212736Ribbon speaker
5185212735Wide-ribbon loudspeaker
5195210805Transducer flux optimization
5205199005Electromagnetic drive assembly for under water sonar transducer
5215198624Audio transducer with controlled flexibility diaphragm
5225197104Electrodynamic loudspeaker with electromagnetic impedance sensor coil
5235195143Acoustical ribbon transducer loudspeaker system
5245181253Loudspeaker assembly
5255179595Electrodynamic-fluidic transducer element for pneumatic loudspeaker

1992

5265172092Selective call receiver having audible and tactile alerts
5275166984Loudspeaker
5285166982Horn speaker having a cooling device
5295157731Dome radiator speaker
5305155773Electrodynamic transducer including inset
5315151943Low distortion dynamic loudspeaker
5325150419Calotte-type treble loudspeaker
5335150418Speaker system
5345148888Ribbon transducers
5355148493Loudspeaker structure
5365148492Diaphragm of dynamic microphone
5375143169Loudspeaker diaphragm provided with a rear load
5385142508Aquatic transducer system
5395142260Transducer motor assembly
5405129005Electrodynamic loudspeaker
5415127060Centering device for speaker diaphragm
5425125033Body sense speaker
5435125031Speaker system with focused vibration
5445123053Loudspeaker suspension
5455091028Method for manufacturing a heat resistant voice coil
5465081684Shallow loudspeaker with slotted magnet structure
5475081683Loudspeakers

1991

5485073948Midrange loudspeaker driver
5495070530Electroacoustic transducers with increased magnetic stability for distortion reduction
5505062140Induction speaker
5515058173Combination inertia type audio transducer and loudspeaker
5525042072Self-cooled loudspeaker
5535040221Compact electroacoustical transducing with flat conducting tinsel leads crimped to voice coil ends
5545033093Compact microphone and method of manufacture
5555027412Voice coil with rectangular coil wire and foil leads
5565025474Speaker system with image projection screen
5575021613Ribbon loudspeaker
5585018206Network mounting device for coaxial type speaker
5595014323Voice coil lead dressing
5605012457Aquatic transducer system
5615008945Water-proof speaker unit
5625003610Whole surface driven speaker
5635003609Whole-surface driven speaker
5644989254Electro-acoustic transducer and manufacturing process

1990

5654980921Magnetic system for dynamic loudspeaker
5664979220Integral body speaker with detachable terminal plate
5674975965Loudspeaker design
5684967871Body-sensible acoustic device
5694961227Portable loud speaker system
5704951270Audio transducer apparatus
5714951023Electromagnetic drive apparatus having a flat coil
5724939784Loudspeaker structure
5734933975Dynamic loudspeaker for producing high audio power
5744928312Acoustic transducer
5754926486Transducer assembly for automatic message system
5764924504Audio speaker
5774922541Acoustic horn audio reproducer
5784914750Sound transducer
5794914707Balanced vehicular speaker system
5804912086Electroacoustic transducer comprising a superconducting element
5814903308Audio transducer with controlled flexibility diaphragm
5824897877Sub-woofer driver combination with dual voice coil arrangement

1989

5834884262Magnetic system for a stereo pick-up with a movable coil
5844881617Radially arcuated speaker cone
5854869765Production process of bobbin for voice coil
5864868882Loudspeaker
5874860370Magnetically suspended acoustical speaker
5884860369Flat speaker unit
5894856071Planar loudspeaker system
5904847904Ambient imaging loudspeaker system
5914837838Electromagnetic transducer of improved efficiency
5924835429Flexible printed cable connected to an inner most end of motor coil
5934829582Electrodynamic transducer
5944829581Electrodynamic transducer comprising a two-part diaphragm
5954825533Method of making a voice coil with rectangular coil wire and foil leads
5964821331Coaxial speaker unit
5974821330Wide-band loudspeaker having a diaphragm area divided into sub-areas for various frequency ranges
5984817165Acoustic speaker device with a diaphragm having a spider web type core
5994811313Loudspeaker and audio reproduction apparatus
6004807295Loudspeaker
6014803733Loudspeaker diaphragm mounting system and method
6024799266Electroacoustic converter
6034795369Electrical connector apparatus for a loudspeaker motor

1988

6044792978Planar loudspeaker system
6054783824Speaker unit having two voice coils wound around a common coil bobbin
6064764968Disk diaphragm for a loudspeaker
6074757548Speaker system and dome-shaped enclosure therefor
6084757547Air cooled loudspeaker
6094752963Electroacoustic converter having a recessed step on the center pole
6104750257Method for making a magnet transducer assembly
6114750208Audio-band electromechanical vibration converter
6124737992Compact electroacoustical transducer with spider covering rear basket opening
6134736435Ear piece transducer
6144723296Electrodynamic transducer of the isophase or ribbon type
6154722517Mechanical spring having negative spring stiffness useful in an electroacoustic transducer
6164720868Dynamic transducer device
6174720867Woofer system for an automotive audio system with a protecter therefor

1987

6184703510Electro-acoustic transducer with diaphragm and blank therefor
6194680800Moving-coil loudspeaker unit
6204675907Electro-vibration transducer
6214675859Intensified field focus moving coil phonocartridge assembly
6224672675Multiple speaker loudspeaker with conductive bridge
6234665550Electrodynamic loudspeaker having omnidirectional sound emission
6244661973Minimization of distortion due to a voice coil displacement in a speaker unit
6254654486Poor-scatter pot magnet system for magnetic-dynamic loudspeakers or acoustic transducers
6264653103Loudspeaker structure and system
6274641345Body-sensible acoustic device
6284637009Grounding circuit for pickup cartridge moving coil
6294635750Loudspeaker diaphragm

1986

6304630358Method of making an electrostatic transducer of the moving coil type
6314628154Annular gap magnet system, particularly for low frequency loudspeakers
6324619342Multiple sound transducer system utilizing an acoustic filter to reduce distortion
6334612420Loudspeaker system for converting a digitized electric signal into an acoustic signal
6344608463Electro-acoustic transducer
6354607382Electroacoustic transducer unit with reduced resonant frequency and mechanical spring with negative spring stiffness, preferably used in such a transducer unit
6364604792Method for making electro-acoustic transducer apparatus
6374598178Means for critically damping a dynamic loudspeaker
6384595801Coupled dual cone velocity driver speaker
6394593404Method of improving the acoustics of a hall
6404591672Loud speaker assembly
6414591667Dome speaker with cut-out portions in the voice coil bobbin
6424590333Multidriver loudspeaker
6434590332Phase coherent low frequency speaker
6444586192Soundstage boundary expansion system
6454584439Audio transducer with controlled flexibility diaphragm
6464584438Percussion air motor
6474580015Loud speaker with minimized magnetic leakage
6484580014Means for controlling ribbon edge clearance in a ribbon loudspeaker
6494577069Electroacoustical transducer
6504567327Flat-diaphragm transducer and method of manufacturing such a transducer
6514566178Process for assembling a cone speaker
6524565905Loudspeaker construction

1985

6534559584Combination lighting device and loudspeaker
6544558443Moving coil type pickup cartridge
6554552242Coaxial type composite loudspeaker
6564551849Vehicle panel speaker for automotive audio system utilizing part of a vehicle panel as a sound-producing medium
6574550428Driver unit for automotive audio speaker
6584550229Trumpet horn speaker
6594550228Ribbon speaker system
6604547874Moving coil type cartridge mounted on cantilever within central opening of ring magnet
6614547632Dynamic loudspeaker
6624547631Large-excursion electroacoustic transducer
6634544806Ribbon-type transducer with a multi-layer diaphragm
6644544805Plane speaker
6654539442Loudspeaker
6664536623Electro-acoustic transducer with diaphragm and blank therefor
6674532383Electroacoustic transducer having a variable thickness diaphragm
6684531025Loudspeaker with commutated coil drive
6694529846Dynamic telephone receiver with magnetic shunt
6704527017Magnet system for an electroacoustic transducer
6714525604Horn loudspeaker with convex diaphragm
6724520238Pickup device for picking up vibration transmitted through bones
6734520237Electrodynamic speaker
6744519063Phono pickup cartridge
6754514599Speaker for automotive vehicle audio system having a vehicle panel serving as sound-amplifying medium
6764508941Voice coil centering and suspension for vented pole piece
6774507800Enclosed magnet loudspeaker
6784506117Electroacoustic transducer
6794499340Speaker for automotive audio system with vehicle panel utilized as sound amplifying medium
6804497052Stylus for reproducing information signals recorded on a recording medium
6814496021360 Degree radial reflex orthospectral horn for high-frequency loudspeakers
6824495638Audio-band electro-mechanical vibration converter
6834494227Stereo phono pick-up and/or cutter
6844492827Horn speaker with reduced magnetic flux leakage
6854491698Electro-acoustic transducer with diaphragm and blank therefor

1984

6864488284Moving-coil type pickup cartridge
6874488012MFB Loudspeaker
6884484037Ribbon-type electro-acoustic transducer with low distortion and improved sensitivity
6894480155Diaphragm type magnetic transducer
6904479035Ceramic voice coil assembly
6914477699Mechanical two-way loudspeaker
6924473723Ribbon loudspeaker having corregated ribbon for reducing distortion
6934472604Planar type electro-acoustic transducer and process for manufacturing same
6944471173Piston-diaphragm speaker
6954471172Planar diaphragm transducer with improved magnetic circuit
6964468530Loudspeaker system
6974465906Low-leakage pot magnet system for moving-coil loudspeakers
6984465905Loudspeaker assembly
6994464785Loudspeaker system
7004461933Electrical/mechanical transducers
7014461932Ribbon type speaker and method of assembling magnetic circuit thereof
7024455639Moving coil type pickup cartridge
7034438297Dynamic speaker
7044437179Phono pickup cartridge
7054433214Acoustical transducer with a slotted piston suspension
7064429379Device for controlling tone arm carrying moving coil type pickup
7074427846Moving coil loudspeakers
7084427845Dynamic microphone
7094426556Electrodynamic loudspeaker
7104426553Vehicle loudspeaker arrangement with magnetic-field-sensitive device

1983

7114421956Loud speaker with minimized magnetic leakage
7124421381Mechanical vibrating element
7134418247Electrodynamic transducer
7144414437Moving coil dynamic transducer
7154413162Moving coil transducers using multiple-stranded coils
7164413161Electro-acoustic transducer
7174413160Ribbon-type loudspeaker
7184412104Rectangular magnetic circuit for speaker
7194410768Electro-acoustic transducer
7204399334Speaker unit for headphones
7214395598Electro-acoustic transducer causing sound waves to be in phase at any point by preventing reflection from the back end of the diaphragm to stress applying means
7224395592Ribbon loudspeaker
7234392027Method and apparatus for providing a uniform sound distribution in an aircraft cabin
7244387275Speaker and speaker system
7254386332Magnetic circuit for dynamic speaker
7264385375Moving coil type phono cartridge
7274384174Moving voice coil loudspeaker, peripheral diaphragm support, diaphragm construction, bobbin to diaphragm reinforcement
7284384173Electromagnetic planar diaphragm transducer
7294379952Mechanical filter for an electrodynamic transducer
7304379951Electro-acoustic transducer means
7314379213Electroacoustical converter
7324378471Horn speaker with linear grooves in a front surface of a pole piece of a yoke
7334376304Moving coil type stereophonic pickup cartridge
7344376233Securing of lead wires to electro-acoustic transducers
7354374624Sound emitting device for electronic timepiece
7364374433Stereo pickup with printed circuit coils mounted in a linear field
7374367377Horn loudspeaker with particular suspension and lead wire passage

1982

7384365680Force measuring device
7394364120Pickup cartridge of moving coil type for phonograph
7404360707Digitally driven combination coils for electrodynamic acoustic transducers
7414357498Coaxial type multi-way planar diaphragm loudspeaker system
7424354067Audio-band electromechanical vibration converter
7434354066Rigid-diaphragm transducer with plural coils
7444353432Electro-dynamic speaker
7454345322Pickup cartridge for reproducing signals recorded on a 45-45 stereophonic record disk
7464341930Electrodynamic loudspeaker
7474340787Electroacoustic transducer
7484338489Headphone construction
7494337379Planar electrodynamic electroacoustic transducer
7504336425High frequency compression driver and method of manufacture thereof
7514334127Magnetic circuit for planar diaphragm type loudspeaker
7524330878Sound producing device for watches
7534327433Magnetic phono cartridge
7544327257Alignment device for electro-acoustical transducers
7554323737Driver unit for planar diaphragm type loudspeaker
7564322584Voice coil bobbin for planar diaphragm
7574322583Voice coil bobbin connection to loudspeaker diaphragm of honeycomb core sandwiched by sheets
7584320264Loudspeaker with a heat resistant two-part diaphragm
7594320263Dynamic transducer with moving coil in an air gap filled with magnetic liquid
7604319096Line radiator ribbon loudspeaker
7614317966Vibratory ribbon speaker
7624317965Thin miniaturized dynamic-type loudspeaker
7634317191Moving coil pickup cartridge
7644317009Coldproof reflex horn speaker
7654315112Speaker
7664313040Electro-acoustic transducer with free edge diaphragm
7674312118Method for producing speaker construction

1981

7684306121Electro-acoustic transducer assembly
7694303806Dynamic electroacoustic transducer having a moving coil in an air gap filled with a magnetic liquid
7704303142Combined acoustical transducer and grille
7714300655Acoustic diaphragm for speakers and method of producing the same
7724300022Multi-filar moving coil loudspeaker
7734297537Dynamic loudspeaker
7744296486Shielded electromagnetic acoustic transducers
7754295011Linear excursion-constant inductance loudspeaker
7764293741Magnet assembly
7774289937Speaker with fine grain ferromagnetic material on center pole or ring
7784284167Sound reproducing device
7794281225Pickup cartridge for reproducing signals recorded on a 45-45 stereophonic record disk
7804281223Electro-acoustic transducer
7814278852Earphone construction
7824276452Membrane type electro-acoustic transducer
7834276449Speaker or microphone having corrugated diaphragm with conductors thereon
7844273968Electroacoustic transducer with magnetic flux directed slantly across a diaphragm
7854273967Stylus for reproducing capacitive videodisc
7864272653Loudspeaker and a method of producing the same
7874272652Moving coil type stereophonic pickup cartridge
7884264789Voice coil assembly for a speaker
7894263483Moving coil pick-up assembly for use in a record player
7904259550Acoustic device with floating vibrating means
7914256930Loudspeaker having improved magnetic assembly
7924252211Loudspeaker
7934251695Pickup cartridge having means for producing magnetic fields of opposite directions for coil plate
7944249225Magnetic field transducer systems
7954246446Moving coil pick-up with coils printed on opposite sides of waver
7964243839Transducer with flux sensing coils
7974243838Stiffness variation device

1980

7984242541Composite type acoustic transducer
7994239944Spider of loudspeaker
8004239943Adjustable dual spider for a loudspeaker

1978

8014100992Loudspeaker
8024093833Moving coil cartridge with magnetic means to affix stylus holder to cartridge casing
8034090039Electrodynamic transducer
8044088847Speaker voice coil construction
8054081627Electromagnetic bipolar loud speaker
8064071111Weatherproof loudspeaker assembly and method of making same

1977

8074064376Sound reproduction system and device
8084061890Loudspeaker with single layer rectangular wire voice coil wound on slit metal bobbin with a notch in the adjacent pole plate
8094057694Speaker diaphragm having flat response curve
8104056697Movable diaphragm connector method flexible hinge diaphragm surround and electro-acoustic transducer with folded diaphragm with intermediate flexible portions
8114055732Inboard type magnetic system for electro-dynamic transducer
8124049926Ribbon loudspeaker achieves focusing and uniformity of the magnetic flux in the working gap
8134039044Low frequency electro-acoustic transducer with interconnected diaphragms interleaved with fixed diaphragms
8144037061Planar pattern voice coil audio transducer
8154035591Electroacoustic transducers
8164031337Loudspeaker
8174030564Loud speaker with stable damping
8184029911Electro-acoustic transducer and method of manufacturing such a transducer
8194029910Wide dispersion loudspeaker with flexing diaphragm
8204029171Membrane for electroacoustic converter systems
8214027111Ribbon loudspeaker
8224020296Electroacoustic transducer
8234017694Method for making loudspeaker with magnetic fluid enveloping the voice coil
8244013846Piston loudspeaker
8254011417Dynamic type pickup
8264008374Loudspeaker systems
8274001523Ribbon loudspeaker
8284001522Ribbon type loudspeaker
8294001519Pick-up cartridges for gramophone records

1976

8303997739Electrodynamic type electroacoustic transducer
8313991286Heat dissipating device for loudspeaker voice coil
8323988025Record disc cutting apparatus
8333987245Compensated speaker-microphone
8343983337Broad-band acoustic speaker
8353979566Electromagnetic transducer
8363967367Method for aligning loudspeaker diaphragm and voice coil assembly
8373963882Boron or graphite reinforced voice coil and manufacturing process
8383963880Moving coil-type cartridge
8393961378Cone construction for loudspeaker
8403956599Dome loudspeaker
8413956598Moving coil pickup cartridge with diaphragm coupling
8423955055Dynamic loudspeaker
8433953687Magnetic structure for moving voice coil loudspeaker
8443944757High-fidelity moving-coil loudspeaker
8453940575Directional microphone
8463939942Electroacoustic transducers
8473939312Pattern voice coil transducer having permanent magnet plates of a single polarity
8483937905Moving voice coil transducer having a flat diaphragm of an impregnated knit
8493935402Loudspeaker voice coil arrangement
8503935400Oval dome type speaker
8513935399Loud speakers
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017