СПИСОК патентов США - подгруппа МПК16 H04R7/00


Выделить слова в названиях патентов:


№ п/п Номер патента Название патента

2017

19609437Diaphragms for loudspeaker drive units
29591388In-car audio system
39583093Sound deflecting apparatus
49571934Acoustic device with passive radiators
59560452Cone tweeter membrane
69538282Acoustically transparent waveguide

2016

79532144Loudspeaker
89510100Energy converter, speaker, and method of manufacturing energy converter
99497549Levered loudspeakers
109473840Dynamic headphone unit and method of producing dynamic headphone unit
119467782Electro acoustic diaphragm
129438997Diaphragm, loudspeaker using diaphragm, electronic device and mobile device using loudspeaker, and method for producing diaphragm
139424829Method for manufacturing compound diaphragm
149414141Mesh structure providing enhanced acoustic coupling
159363593Transducer suspension elements with built-in tinsel wire
169338535Micro-speaker
179338534Miniature speaker
189277329Capacitive MEMS element including a pressure-sensitive diaphragm
199271098Audio speaker with externally reinforced passive radiator attachment
209258648Levered loudspeakers
219258631Micro-speaker
229253576Suspension for acoustic device
239232316Optically clear diaphragm for an acoustic transducer and method for making same

2015

249226074Surround with variations of concavity
259185492Systems and methods for acousto-haptic speakers
269173036Manufacturing method for narrow-type diaphragm and thin-type diaphragm, speaker-use diaphragm manufactured using same manufacturing method, speaker, electronic apparatus, and movable device
279173033Composite vibration diaphragm and its fabrication method
289107002Loudspeaker diaphragm and loudspeaker using the same
299106988Electroacoustic transducer
309094743Acoustic transducers
318991548Acoustic diaphragm suspending
328925675Compound membrane and acoustic device using same

2014

338831269Bobbin and loudspeaker using the same
348824725Speaker diaphragm, speaker using said diaphragm, and speaker diaphragm manufacturing method
358813906Speaker damper and manufacturing method of the same
368798310Optically clear diaphragm for an acoustic transducer and method for making same
378794374Acoustic transducer device
388718317Moving-magnet electromagnetic device with planar coil
398646570Diaphragm of electric sound converter and its manufacturing method
408628830Method of and device for modifying the properties of a membrane for an electroacoustic transducer

2013

418611575Speaker system method and apparatus
428567555Dual bore canalphone system
438548188Diaphragm, method making the same and loudspeaker using the same
448540049Acoustic diaphragm suspending
458503702Electret diaphragm and speaker using the same
468472649Push-pull type speaker device and method of manufacturing the same
478428298Damper for speaker and speaker using the damper
488396240Baffle vibration reducing

2012

498340341Coated speaker dome
508320604Composite loudspeaker cone
518290183Illuminating device
528284964Compound membrane, method of manufacturing the same, and acoustic device
538259987Diaphragm, diaphragm assembly and electroacoustic transducer
548235168Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker
558230966Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker
568215445Electroacoustic transducer
578213671Speaker
588208677Suspension member for speaker
598189851Optically clear diaphragm for an acoustic transducer and method for making same
608177021Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker
618139812Loudspeaker suspension
628135164Speaker
638135160Speaker device and mobile phone
648122996Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker
658094842Loudspeaker system and loudspeaker enclosure

2011

668073186Loudspeaker
678045745Edge support for a speaker apparatus comprising multiple ridges
688027503Diaphragm for speaker device, speaker device and mobile phone
698009858Loudspeaker
708002079Diaphragm for speaker, speaker using the diaphragm for speaker, and process for producing the diaphragm for speaker
717986805Acoustic diaphragm
727983436Baffle vibration reducing
737983432Point excitation placement in an audio transducer
747980355Acoustic diaphragm, and method of fabricating acoustic diaphragm
757945069Loudspeaker plastic cone body
767940948Methods and apparatus for mounting a loudspeaker
777878297Acoustic transducer made of pure beryllium with directed radiation, with a concave-shaped diaphragm, for audio applications, in particular for acoustic enclosures
787866439Membrane for an electroacoustic transducer

2010

797849958Vibration system part for speaker device and manufacturing method thereof
807822222Loudspeaker and method of manufacturing the same
817789491Inkjet head and method of manufacturing inkjet head
827775319Diaphragm for speaker and manufacturing method therefor
837753164Membranes made of cast polyarylate film
847743878Folded horn enclosure with unitary pathway
857711135Sounding device
867678218Production method of an electroacoustic transducer diaphragm, electroacoustic transducer diaphragm, and an electroacoustic transducer

2009

877591344Peripheral component for audio equipment
887546897Speaker diaphragm and method of manufacturing speaker diaphragm
897512035Piezoelectric actuator, liquid transporting apparatus, and method of producing piezoelectric actuator

2008

907418107Loudspeaker
917388964Loudspeaker, and module and electronic apparatus using the loudspeaker
927319772Speaker device for improving mid/high-range frequencies

2007

937292503Multi piston electro-mechanical transduction apparatus
947278513Internal lens system for loudspeaker waveguides
957218748Tapered thickness surround for high excursion speaker driver
967203329Audio speaker system employing an axi-symmetrical horn with wide dispersion angle characteristics over an extended frequency range
977174990Tangential stress reduction system in a loudspeaker suspension
987164776Vibration balanced receiver

2006

997043046Method for manufacturing an electroacoustical transducer comprising a membrane configuration
1007035419Anti-resonant structure for speakers

2005

1016965679Equalizable electro-acoustic device used in commercial panels and method for converting said panels
1026965678Electronic article comprising loudspeaker and touch pad
1036963654Diaphragm, flat-type acoustic transducer, and flat-type diaphragm
1046959096Sound reproduction system
1056957714Speaker and speaker diaphragm
1066956957Loudspeakers
1076956953Electroacoustic transducer with field replaceable diaphragm carrying two interlaced coils, without manipulating any wires
1086956492Display signs comprising a flat panel loudspeaker
1096937987Character information receiving apparatus
1106934399Piston-type panel-form loudspeaker
1116929092Speaker diaphragm
1126929091Planar diaphragm loudspeaker and related methods
1136925191Flat panel speaker
1146920957Loudspeaker diaphragm
1156911901Multi-functional vibro-acoustic device
1166904154Acoustic device
1176895097Planar type speaker and system using it
1186892850Surround for speaker system and manufacturing method thereof
1196889796Loudspeaker suspension
1206888946High frequency loudspeaker
1216885753Communication device using bone conduction
1226865282Loudspeaker suspension for achieving very long excursion
1236865277Passenger vehicle
1246863153Loudspeaker diaphragm
1256862361Audio speaker
1266853734Audio speaker damper with electrically conductive paths thereon to carry voice coil signals and a method therefore
1276851513Tangential stress reduction system in a loudspeaker suspension
1286850138Vibration actuator having an elastic member between a suspension plate and a magnetic circuit device
1296845169Speaker parts and method of manufacturing same
1306845166Plane driving type electroacoustic transducer
1316839444Loudspeakers

2004

1326836552Panel loudspeakers
1336832106Electroacoustic transducer
1346826285Bending wave loudspeaker
1356820719Butterfly damper
1366813362Loudspeaker and method of making same
1376810126Planar magnetic transducer
1386804367Speaker apparatus and electronic apparatus having speaker apparatus enclosed therein
1396801634Loudspeaker coil suspension system
1406795561Panel drive
1416792127Elliptical dome for high frequency transducer
1426782114Loudspeaker
1436779627Flat panel sound radiator with fire protective back box
1446760461Vehicle loudspeaker
1456759769Electromechanic film and acoustic element
1466757404Loud speaker, diaphragm and process for making the diaphragm
1476751333Inertial vibration transducers
1486751329Loudspeaker driver
1496748090Multi-mode radiator panels
1506745867Loudspeaker drive unit
1516740202Speaker diaphragm and method of manufacturing same
1526738484Pressure responsive device and method of manufacturing semiconductor substrate for use in pressure responsive device
1536735323Speaker
1546731764Speaker apparatus and electronic apparatus having speaker apparatus enclosed therein
1556728389Membrane support system
1566725967Low distortion loudspeaker cone suspension
1576724910Diaphragm stable through hygroscopic cycling
1586723761Microcellular foaming
1596721436Remote edge-driven panel speaker
1606700987Loudspeaker
1616697496Electroacoustic transducer comprising a membrane with an improved pleats area
1626694039Loudspeaker
1636694038Acoustic device
1646687381Planar loudspeaker
1656681026Rectangular transducer for panel-form loudspeaker
1666680430Speaker edge, method of foam-molding the same, apparatus for foam-molding the same, speaker edge foam-molding system, and speaker employing the speaker edge
1676676879Method of making vehicle interior trim panel with integral loudspeaker

2003

1686658129Passive radiator having mass elements
1696655495Loudspeaker damper and loudspeaker
1706655001Process for a diaphragm for electroacoustic transducers
1716654475Electricity-to-sound transducer
1726650759Speaker
1736634456Vibrating diaphragm of false speaker structure
1746633649Quick release spider clamp for loudspeakers
1756627805Audio device and method including a membrane having at least two tongues with different resonant frequencies
1766622817Sound reproduction device working according to the bending wave principle
1776621908Speaker apparatus and electronic apparatus having speaker apparatus enclosed therein
1786618487Electro-dynamic exciter
1796610237Method of making a loudspeaker drive unit having a resiliently suspended panel-form member
1806606390Loudspeakers
1816594372Electroacoustic transducer
1826593847Planar acoustic converting apparatus
1836591938Speaker diaphragm
1846590994Linear vibrating device and speaker equipped with the same
1856590993Panel-shaped loudspeaker
1866580799Keyboard comprising a loudspeaker
1876577743Electroacoustic transducer and structure for mounting an electroacoustic transducer
1886577742Membrane support system
1896574347Flat-panel loudspeaker with compressed dampeners
1906568503Loudspeaker with improved mounting structure for the surround
1916567529Low frequency loudspeaker driver having a polygonal diaphragm and method for mounting drivers in a tightly packed two-dimensional array
1926563934Mechanically tunable diaphragm using nickel titanium memory metal
1936563930Speaker
1946560348Contact connections
1956557225Method of producing surface acoustic wave device
1966554098Panel speaker with wide free space
1976553124Acoustic device
1986546106Acoustic device
1996543574Method of making a speaker edge containing isocyanate and polyol
2006543573Speaker unit, speaker system, and speaker diaphragm manufacturing method
2016539097Multi-functional vibration actuator
2026535612Electroacoustic transducer with diaphragm securing structure and method
2036532644Method of making a piezoelectric speaker with a unitary body comprising a base section and dome shaped vibrating section
2046522760Active acoustic devices
2056519349Loudspeaker
2066519347Panel-form loudspeakers
2076519346Speaker apparatus and electronic apparatus having a speaker apparatus enclosed therein
2086516077Electroacoustic transducer
2096510919Facing system for a flat panel radiator
2106510232Electroacoustic transducer having diaphragm with coil mounting projections and interposed stabilizing walls
2116508947Method for fabricating a micro-electro-mechanical fluid ejector
2126502662Speaker having a hemispherical vibrator

2002

2136494289Device for dynamic excitation of panel loudspeakers
2146481173Flat panel sound radiator with special edge details
2156480614Planar acoustic transducer
2166478109Laminated composite panel-form loudspeaker
2176474440Diaphragm for speaker and speaker device provided with the same
2186456723Acoustic device
2196453049Acoustic diaphragm
2206449376Planar-type loudspeaker with at least two diaphragms
2216443586Light-emitting panel-form loudspeaker
2226442282Acoustic devices
2236427016Acoustic devices
2246422337Loudspeaker with a suspension member made of a laminate
2256411723Loudspeakers
2266404897Ceramic metal matrix diaphragm for loudspeakers
2276404894Packaging
2286399870Musical instruments incorporating loudspeakers
2296397972Loudspeakers
2306390232Speaker cone assembly
2316389935Acoustic display screen
2326386315Flat panel sound radiator and assembly system
2336385327Device having two coaxially disposed bodies which are movable relative to one another along a translation axis
2346378649Speaker member and manufacturing method thereof
2356377695Trim panel comprising an integral acoustic system
2366377145Vibration actuator having magnetic circuit elastically supported by a spiral damper with increased compliance
2376372066Vibration exciter
2386369943Projection screen
2396359996Speaker device
2406359991Greetings or the like card
2416356641Vehicular loudspeaker system
2426351544Regressively hinged spider
2436351542Loudspeakers with panel-form acoustic radiating elements
2446347683Loudspeaker and process for manufacturing a loudspeaker
2456347149Driver for a flat acoustic panel
2466342831Electronic apparatus

2001

2476333575Vibration exciter
2486332508Loudspeaker and method for producing the same
2496332262Method of fabricating a loudspeaker suspension device
2506332029Acoustic device
2516327372Ceramic metal matrix diaphragm for loudspeakers
2526327369Loudspeakers comprising panel-form acoustic radiating elements
2536324294Passenger vehicles incorporating loudspeakers comprising panel-form acoustic radiating elements
2546324052Personal computing devices comprising a resonant panel loudspeaker
2556320972Loudspeaker
2566320967Passenger vehicles incorporating loudspeakers comprising panel-form acoustic radiating elements
2576307942Panel-form microphones
2586305491Speaker
2596304661Loudspeakers comprising panel-form acoustic radiating elements
2606298140Electroacoustic transducer with improved tonal quality
2616298012Doubly resonant push-pull flextensional
2626285770Noticeboards incorporating loudspeakers
2636282298Acoustic device
2646278790Electroacoustic transducers comprising vibrating panels
2656278787Loudspeakers
2666275598Sound reproduction device
2676266427Damped structural panel and method of making same
2686266426Visual display means incorporating loudspeakers
2696259800Speaker and speaker apparatus
2706247551Panel-form loudspeaker
2716243473Laptop computer with loudspeaker(s)
2726224801Method of making a speaker
2736222931High power acoustical transducer
2746219432Loudspeaker drive unit
2756215884Piezo speaker for improved passenger cabin audio system
2766215882Panel-form loudspeaker
2776215881Ceiling tile loudspeaker
2786208743Electrodynamic acoustic transducer with magnetic gap sealing
2796201878Portable compact disc player
2806201874Electrostatic transducer with nonplanar configured diaphragm
2816199655Holographic transparent speaker
2826198831Panel-form loudspeakers
2836195440Piezoelectric transducers
2846192136Inertial vibration transducers
2856188775Panel-form loudspeakers
2866183674Manufacturing method of diaphragm for use in electroacoustic transducers
2876181799Greetings or the like card
2886178252Electroacoustic transducer comprising a diaphragm having through portions for mounting a voice coil
2896176345Pistonic motion, large excursion passive radiator
2906171534Method of making a speaker cone and surround assembly
2916170603Acoustic wall
2926169809Visual display means incorporating loudspeakers

2000

2936165980Distamycin derivatives, process for preparing them, and their use as antitumor and antiviral agents
2946160898Suspension mount for sound reproduction devices according to the flexural wave principle
2956154557Acoustic transducer with selective driving force distribution
2966151402Vibration transducers
2976144746Loudspeakers comprising panel-form acoustic radiating elements
2986137891Variable geometry electromagnetic transducer
2996134337Loudspeaker
3006111972Diffusing volume electroacoustic transducer
3016104825Planar magnetic transducer with distortion compensating diaphragm
3026097830Transducer diaphragm with thermal strain relief
3036097829Fiber-honeycomb-fiber sandwich speaker diaphragm and method
3046095280Concentric tube suspension system for loudspeakers
3056078677Electroacoustic transducer with improved diaphragm attachment
3066075866Electroacoustic transducer having axially extending corrugated supporting means for the diaphragm
3076069965Loudspeaker
3086058196Panel-form loudspeaker
3096044159Planar film speaker with inertial driver
3106039145Diaphragm-edge integral moldings for speakers, acoustic transducers comprising same and method for fabricating same
3116031926Panel-form loudspeakers
3126026929High frequency radially arcuated center speaker cone with variable thickness

1999

3136003766Vending machine
3145999633Speaker damper
3155991425Low reflection/low diffraction treatment for loudspeaker transducer diaphragm
3165969298Compression driver
3175966797Method of manufacturing a damper for a loudspeaker
3185953438Planar electromagnetic transducer
3195949898Surround for a loudspeaker
3205937075Loudspeaker
3215933508Horn speaker system
3225920040Speaker diaphragm
3235912863Electro-acoustic transducer
3245907133Device for electroacoostic diffusion, with diaphragms, spiders and horns of balsa wood or mixtures thereof
3255903658Loudspeaker and a method for producing the same
3265901231Piezo speaker for improved passenger cabin audio systems
3275883967Slotted diaphragm loudspeaker
3285880412High frequency radially arcuated center speaker cone
3295878148Compression driver
3305875253Loudspeaker and a method for producing the same
3315875252Loudspeaker for high frequencies

1998

3325850462Speaker component, speaker, and its manufacturing method
3335850461Diaphragm support frames for acoustic transducers and method of assembly
3345848173Surroundless loudspeaker
3355847332Polycarbonate-based radially arcuated speaker cone
3365841880Multi-point drive type speaker
3375838805Piezoelectric transducers
3385828768Multimedia personal computer with active noise reduction and piezo speakers
3395822444Loudspeaker
3405802196Speaker for radiating sound waves in all directions relative to a speaker supporting surface
3415796854Thin film speaker apparatus for use in a thin film video monitor device
3425796054Loudspeaker diaphragm
3435793877Through-window speaker/microphone
3445748759Loud speaker structure
3455744761Diaphragm-edge integral moldings for speakers and acoustic transducers comprising same
3465734132Concentric tube suspension system for loudspeakers
3475729616Centering diaphragm
3485721786Loudspeakers
3495719946Loudspeaker for higher audio frequencies and a manufacturing method thereof
3505714722Loudspeaker
3515705108Method for making edge for loudspeaker diaphragm

1997

3525701359Flat-panel speaker
3535693917Planar diaphragm loudspeaker
3545689093Cone of a speaker
3555687247Surround for a loudspeaker
3565668886Loudspeaker structure
3575664024Loudspeaker
3585638456Piezo speaker and installation method for laptop personal computer and other multimedia applications
3595627903Variable geometry electromagnetic transducer
3605625701Loudspeaker diaphragm attaching
3615619019Damper for loudspeaker
3625615275Planar diaphragm loudspeaker with counteractive weights
3635608810Loudspeaker structure
3645602931Connection line
3655599563Tool for molding a surround onto a loudspeaker cone

1996

3665587562Diaphragm for electro-dynamic type loudspeakers
3675578800Member for loudspeaker
3685574797Suspension mount for loudspeakers
3695570429Audio transducer with flexible foam enclosure
3705556464Vibration plate of a speaker and method for producing same
3715546470Loudspeaker
3725539835Planar-type loudspeaker with dual density diaphragm
3735521886Diaphragm for use with an electro-acoustic transducer and method of producing the same

1995

3745473700High gain acoustic transducer
3755473121Acoustic vibration plate
3765471437Electrodynamic acoustic transducer
3775458958Speaker cone and process for production thereof
3785455396Temperature/environment-resistant transducer suspension
3795450497Audio transducer improvements
3805432004Vibration plate of a speaker and method for producing same
3815430805Planar electromagnetic transducer
3825425107Planar-type loudspeaker with dual density diaphragm
3835418337Loudspeaker driver surrounding
3845418336Sound output device
3855408056Component supporting
3865406038Shielded speaker

1994

3875376853Electroacoustic transducer
3885371805Speaker and speaker system employing the same
3895360959Direct current resistance welding machine and method of controlling the same
3905330695Method of manufacturing diaphrams for dynamic microphones
3915329072Acoustic diaphragm
3925325439Loudspeaker apparatus
3935323469Conical loudspeaker having a conical stabilizing element joined between an underside of a speaker membrane and an outside surface of a speaker moving coil carrier
3945319718Loudspeaker cone and method for making same
3955317642Loudspeakers having torque drive radiators
3965304746Reduction of standing waves and intermodulation distortion in electro-acoustic transducer
3975297214Loudspeaker structure
3985293009Dust protection cap for conical loudspeaker
3995283836Planar speakers
4005283397Diaphragm for electrodynamic transducer
4015283027Method of molding an acoustic diaphragm part of para aromatic polyamide

1993

4025259036Diaphragm for dynamic microphones and methods of manufacturing the same
4035256837Paper cone for cone type speaker
4045255328Dynamic microphone
4055245669Electroacoustic transducer
4065243662Electrodynamic sound generator for hearing aids
4075241140Speaker diaphragm
4085231672Plane-surfaced waved out-diffusion triangular beam-typed resonant board
4095206466Diaphragm for speaker
4105205897Method of bonding loudspeaker diaphragm
4115198624Audio transducer with controlled flexibility diaphragm
4125191697Loudspeaker damper and method of manufacturing the same
4135180785Diaphragm and method for producing same

1992

4145162619Diaphragm for a loudspeaker
4155157731Dome radiator speaker
4165152938Process for preparation of a wholly carbonaceous diaphragm for acoustic equipment use
4175150419Calotte-type treble loudspeaker
4185149470Method of making a diaphragm of carbonaceous material
4195148493Loudspeaker structure
4205143169Loudspeaker diaphragm provided with a rear load
4215127060Centering device for speaker diaphragm
4225125473Speaker damper configuration
4235123053Loudspeaker suspension
4245115474Speaker system
4255111510Speaker and manufacturing method therefor
4265102729Speaker diaphragm
4275099949Speaker and manufacturing method therefor
4285098976Acoustic material
4295091958Wiring structure of loudspeaker
4305081684Shallow loudspeaker with slotted magnet structure
4315080743Process for preparation of a wholly carbonaceous diaphragm for acoustic equipment use

1991

4325073946Thin speaker having an enclosure with an open portion and a closed portion
4335072806Diaphragm for acoustic equipment
4345064019Electroacoustic diaphragm and method for making same
4355056617Diaphragm for loudspeaker
4365047191Method for manufacturing loudspeaker diaphragm
4375043185Method for fabricating a graphite film for use as an electroacoustic diaphragm
4385033093Compact microphone and method of manufacture
4395031720Speaker diaphragm
4405031222Piezoelectric speaker
4415027411High frequency loudspeaker
4425025474Speaker system with image projection screen
4435022084Speaker
4444997058Sound transducer
4454996119Speaker cone plate and method of forming
4464990816Piezoelectric capsule with resilient conducting holding means
4474989254Electro-acoustic transducer and manufacturing process
4484987002Process for forming a crystalline diamond film

1990

4494978880Piezoelectric capsule with flat supporting surface and resilient holding means
4504975965Loudspeaker design
4514975318Improved acoustic carbon diaphragm
4524968551Acoustic vibrator member and method of manufacturing
4534959185Process for producing acoustic carbon diaphragm
4544949386Speaker system
4554939784Loudspeaker structure
4564928312Acoustic transducer
4574924504Audio speaker
4584921559Process of making an acoustic carbon diaphragm
4594919859Process of making an acoustic carbon diaphragm
4604903308Audio transducer with controlled flexibility diaphragm
4614899390Thin speaker having an enclosure within an open portion and a closed portion

1989

4624881617Radially arcuated speaker cone
4634860370Magnetically suspended acoustical speaker
4644856071Planar loudspeaker system
4654855093Process of making a diaphragm of carbonaceous materials for a speaker
4664849071Method of forming a sealed diaphragm on a substrate
4674849050Method of producing a diaphragm on a substrate
4684847981Method for producing a diaphragm for acoustic appliances
4694847908Loudspeaker having a two-part diaphragm for use as a car loudspeaker
4704837839Compact speaker assembly with improved low frequency response
4714829581Electrodynamic transducer comprising a two-part diaphragm
4724823907Balloon assembly
4734821330Wide-band loudspeaker having a diaphragm area divided into sub-areas for various frequency ranges
4744820952Film speaker using a piezo-electric element
4754817165Acoustic speaker device with a diaphragm having a spider web type core
4764817152Stereo system with piezo-electrical film speaker
4774807294Piezoelectric and foam resin sheet speaker
4784805729Speaker enclosure
4794803733Loudspeaker diaphragm mounting system and method
4804803242Diaphragm for loudspeakers

1988

4814792978Planar loudspeaker system
4824764968Disk diaphragm for a loudspeaker
4834761817Diaphragm structure for a transducer
4844761451Acoustic vibration sheet and polypropylene composition for the same
4854758388Method of manufacturing ceramic vibration plate for speaker
4864753969Diaphragm for electroacoustic transducer
4874751419Piezoelectric oscillation assembly including several individual piezoelectric oscillation devices having a common oscillation plate member
4884726443Diaphragm
4894723296Electrodynamic transducer of the isophase or ribbon type
4904722517Mechanical spring having negative spring stiffness useful in an electroacoustic transducer

1987

4914709392Dome speaker with a diaphragm having at least one elongated cut-out portion
4924703510Electro-acoustic transducer with diaphragm and blank therefor
4934699242Magnetic speaker
4944692942Electroacoustic transducer with piezoelectric diaphragm
4954674592Diaphragm for use in electro-acoustic transducer
4964648480Condenser microphone having resistance against high-temperature and radioactive rays
4974646874Loudspeaker diaphragm
4984639283Method for making a diaphragm for an electro-acoustic transducer

1986

4994626729Electroacoustic piezoelectric transducers
5004620606Loudspeaker of plane diaphragm type
5014607382Electroacoustic transducer unit with reduced resonant frequency and mechanical spring with negative spring stiffness, preferably used in such a transducer unit
5024595801Coupled dual cone velocity driver speaker
5034591667Dome speaker with cut-out portions in the voice coil bobbin
5044590332Phase coherent low frequency speaker
5054585090Isotrophic loudspeaker
5064582163Electro-acoustic transducer with high air permeable diaphragm
5074581496Diaphragm for attenuating harmonic response in an electroacoustic transducer
5084578613Diaphragm comprising at least one foil of a piezoelectric polymer material
5094577069Electroacoustical transducer
5104567327Flat-diaphragm transducer and method of manufacturing such a transducer
5114562899Diaphragm of electroacoustic transducer and method of manufacturing the same

1985

5124552243Diaphragm material for acoustical transducer
5134550797Loudspeaker diaphragm made of a molded, sintered ceramic body
5144550228Ribbon speaker system
5154547631Large-excursion electroacoustic transducer
5164544805Plane speaker
5174536623Electro-acoustic transducer with diaphragm and blank therefor
5184532383Electroacoustic transducer having a variable thickness diaphragm
5194531608High frequency compression driver
5204530386Cushion tire
5214518642Loudspeaker diaphragm and method for making same
5224518443Acoustic diaphragm
5234517416Electro-acoustic transducer having a diaphragm comprising a layer of polymethacrylimide foam
5244512435Diaphragm for loudspeakers
5254508192Microphone diaphragm
5264491698Electro-acoustic transducer with diaphragm and blank therefor

1984

5274488010Loudspeaker
5284487877Diaphragm for loudspeaker
5294484383Method of manufacturing a speaker diaphragm
5304478309Speaker equipped with diaphragm filled with foamed resin
5314477699Mechanical two-way loudspeaker
5324473721High-frequency loud speaker
5334472543Flame retardant diaphragm for acoustic transducers
5344471085Diaphragm material for loudspeakers
5354471084Diaphragm for loudspeakers
5364471028Honeycomb core diaphragm
5374470479Method of making metal coated foil speaker diaphragm
5384461930Acoustic transducer with honeycomb diaphragm
5394460060Vibratory diaphragm for loudspeaker
5404451609Flame-retarded acoustic diaphragm
5414440983Electro-acoustic transducer with active dome
5424440259Loudspeaker system for producing coherent sound
5434433214Acoustical transducer with a slotted piston suspension
5444429068Rubber material
5454428996Diaphragm for speaker
5464427846Moving coil loudspeakers

1983

5474414436Narrow-frequency band acoustic transducer
5484412103Diaphragm for an electro-acoustic transducer
5494410768Electro-acoustic transducer
5504404315Molding compositions and diaphragms, arm pipes and head shells molded therefrom
5514403117Sonic transducer having diaphragm tensioning spring directly attached to diaphragm
5524401858Method for controlling wrinkles in a vibratile diaphragm
5534399179Polyester laminated film
5544395814Acoustic vibrating element of graphite and method of manufacturing same
5554395598Electro-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
5564395597Speaker diaphragm assembly and a method of manufacturing the same
5574392027Method and apparatus for providing a uniform sound distribution in an aircraft cabin
5584387788Diaphragm pressure ring for tone generators
5594387787Loudspeaker having acoustic impedance frontal loading element
5604384174Moving voice coil loudspeaker, peripheral diaphragm support, diaphragm construction, bobbin to diaphragm reinforcement
5614379952Mechanical filter for an electrodynamic transducer
5624379951Electro-acoustic transducer means
5634379213Electroacoustical converter
5644377617Loudspeaker diaphragm and process for producing same
5654373607Loudspeaker cone stiffeners

1982

5664362772Vibratory elements for audio equipment
5674359132High performance speaker diaphragm
5684354066Rigid-diaphragm transducer with plural coils
5694353432Electro-dynamic speaker
5704352407Diaphragms for acoustic instruments and method of producing the same
5714352039Sonic transducer
5724351412Diaphragm for acoustic instruments and method of manufacturing the same
5734351411Speaker device
5744348342Method for making electrodynamic loudspeakers having a planar diaphragm of expanded polystyrene
5754344503Diaphragm for electro-acoustic transducer
5764343376Vibratory elements for audio equipment
5774341838Molding compositions and diaphragms, arm pipes and head shells molded therefrom
5784336425High frequency compression driver and method of manufacture thereof
5794330878Sound producing device for watches
5804324312Diaphragm suspension construction
5814322583Voice coil bobbin connection to loudspeaker diaphragm of honeycomb core sandwiched by sheets
5824321434Electroacoustic transducer
5834320264Loudspeaker with a heat resistant two-part diaphragm
5844319098Loudspeaker having a unitary mechanical-acoustic diaphragm termination
5854315557Diaphragm for electro-acoustic transducer
5864315112Speaker
5874313040Electro-acoustic transducer with free edge diaphragm

1981

5884308094Diaphragm for speaker and method of producing same
5894302695Support arrangement for a flexible sound generating diaphragm
5904300655Acoustic diaphragm for speakers and method of producing the same
5914291781Speaker diaphragm and method of preparation of the same
5924291205Laminated loudspeaker diaphragm with honeycomb core and damping layers
5934284167Sound reproducing device
5944283605Piezoelectric speaker
5954281223Electro-acoustic transducer
5964275278Diaphragm for a loudspeaker
5974273900Diaphragm for acoustic equipment
5984272653Loudspeaker and a method of producing the same
5994257325Mouting of a substantially planar diaphragm defining a sound transducer
6004254184Vibrating member for acoustic transducer and method for manufacturing the same
6014252211Loudspeaker
6024249043Electret transducer backplate, electret transducer and method of making an electret transducer

1980

6034239944Spider of loudspeaker
6044239943Adjustable dual spider for a loudspeaker
6054239090High accuracy bass reproducer device
6064235302Loudspeaker
6074228327Electromagnetic type acoustic transducers
6084225757Broad band dynamic loudspeaker
6094225756Broad band dynamic loudspeaker
6104222119Multi-purpose radio
6114221773Method of producing a carbon diaphragm for an acoustic instrument
6124216271Composite diaphragm for speaker
6134215249Method and device for controlling wrinkles in a vibratile diaphragm
6144198550Peripherally reinforced laminated loudspeaker diaphragm
6154190746Diaphragm material for moving coil loudspeaker, may be laminated or integral with surround
6164188711Method of making broad band dynamic loudspeaker
6174184563Planar diaphragm and supporting frame assembly

1979

6184173701Speaker diaphragm molded from poly-biphenol phthalate type resin film
6194163876Electro-acoustic transducer with variable thickness foam surfaced diaphragm
6204160883Acoustic transducer and method of making same
6214159472Electronic buzzer
6224158756Dynamic loudspeaker with plastic basket encapsulating front pole plate
6234147899Broadband electromagnetic sound source with differently tuned diaphragms
6244146756Moving voice coil transducer with diaphragm having concentric sections of opposite curvature
6254140203Acoustic diaphragm with polyurethane elastomer coating
6264139733Electro acoustic transducer with improved diaphragm
6274135601Boron coated diaphragm for use in a loud speaker
6284132872Ribbed conical-central dome diaphragm with tapered thickness components

1978

6294129195Diaphragm for speaker
6304128138Diaphragm for speaker
6314127749Microphone capable of cancelling mechanical generated noise
6324126769Moving armature transducer with reinforced and pivoted diaphragm
6334122314Loudspeaker having a laminate diaphragm of three layers
6344115667Loudspeaker voice coil bearing
6354112168High stiffness speaker cone
6364107479Electro-acoustic transducer
6374105877Electrostatic loudspeaker having elastic diaphragm spacer elements cured in situ
6384100992Loudspeaker
6394086450Variable thickness cone for a dynamic speaker and quality control inspection method therefor
6404086449Loudspeaker with burning resistant diaphragm
6414085297Spring force biasing means for electroacoustical transducer components
6424081627Electromagnetic bipolar loud speaker
6434081626Electrostatic transducer having narrowed directional characteristic
6444076098Loudspeaker diaphragm

1977

6454064365Loudspeaker assembly with restructured diaphragm including a tweeter driven by a bass amplifier
6464063049Piezoelectric electroacoustic transducer
6474061890Loudspeaker with single layer rectangular wire voice coil wound on slit metal bobbin with a notch in the adjacent pole plate
6484057694Speaker diaphragm having flat response curve
6494056697Movable diaphragm connector method flexible hinge diaphragm surround and electro-acoustic transducer with folded diaphragm with intermediate flexible portions
6504042438Method of assembling a diaphragm assembly for an electro-acoustic transducer
6514039044Low frequency electro-acoustic transducer with interconnected diaphragms interleaved with fixed diaphragms
6524033180Ultrasonic microphone for operating with an accumulated layer of mud over its vibratile surface without change in sensitivity within its prescribed frequency range
6534029911Electro-acoustic transducer and method of manufacturing such a transducer
6544029910Wide dispersion loudspeaker with flexing diaphragm
6554029171Membrane for electroacoustic converter systems
6564026384Reconstituted mica acoustic diaphragm
6574024355Piezoelectric electro-acoustic transducer with non-uniform backing
6584020299Electro-acoustic transducer diaphragms
6594016376Concave diaphragm for electro-acoustic transducer
6604004409Watch having a piezo electric buzzer mechanism
6614003449Planar diaphragm

1976

6623997023Loudspeaker with improved surround
6633985201Infinite sound reproduction chamber
6643983337Broad-band acoustic speaker
6653980841Speaker edge
6663958662Tensioned diaphragm mounting for an electroacoustic transducer
6673955055Dynamic loudspeaker
6683946832Diaphragm for loud speaker
6693940576Loudspeaker having sound funnelling element
6703939942Electroacoustic transducers
6713937905Moving voice coil transducer having a flat diaphragm of an impregnated knit
6723935924Vibratory material of paper pulp and carbon fibers
6733935400Oval dome type speaker
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017