Patent
US 9,900,698GRAPHENE COMPOSITE ACOUSTIC DIAPHRAGM
Victor Luzzato
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 9,900,698Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 depicts an example electronic device including an audio device; [0017]
FIG. 2 is a cross-sectional view of a speaker device taken along section A-A; [0018]
FIG. 3 is a cross-sectional view of a microphone device taken along section B-B; [0019]
FIG. 4 is a cross-sectional view of an embodiments of a diaphragm taken along section A-A; [0020]
FIG. 5 is a cross-sectional view of another embodiment of a diaphragm taken along section A-A; [0021]
FIG. 6 is a process flow diagram of a process for making a diaphragm including graphene; and [0022]
FIG. 7 is an illustrative block diagram of an electronic device.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An audio device comprising: a support structure; an acoustic element disposed within a recess of the support structure; and a diaphragm coupled to the support structure, the diaphragm comprising: a center portion comprising a base material; a flexible portion comprising the base material and surrounding the center portion and configured to flex in response to a movement of the center portion with respect to the support structure; and a graphene flake material molded into the base material, wherein a concentration of the graphene flake material is higher within ef the center portion than within the flexible portion such that an elastic modulus of the center portion is greater than an elastic modulus of the flexible portion. Currently amended
The audio device of claim 1, wherein: the center portion has a first stiffness; the flexible portion has a second stiffness; and the first stiffness is greater than the second stiffness. Original
The audio device of claim 1, wherein: the center portion includes a first size of graphene flake; the flexible portion includes a second size of graphene flake; and the first size is greater than the second size. Original
The audio device of claim 1, wherein the diaphragm comprises: a membrane structure, at least a portion of which forms the flexible portion; and a composite cap structure bonded to a surface of the membrane structure and forming at least a portion of the center portion. Original
The audio device of claim 1, wherein: the base material comprises a polymer; and the graphene flake material is molded into the polymer. Original
The audio device of claim 1, wherein: the acoustic element comprises: a magnet disposed within the recess of the support structure; and a voice coil attached to the center portion of the diaphragm and electromagnetically coupled to the magnet; and the flexible portion is configured to flex in response to relative motion between the magnet and the voice coil. Original
The audio device of claim 1, wherein the audio device forms at least one of a speaker, a headphone, and a microphone. Original
Canceled
A portable electronic device comprising: a housing defining an opening; a display positioned in the opening of the housing; an audio device comprising: a support structure; a diaphragm flexibly connected to the support structure and configured to transmit or receive sound waves, wherein [[:]] the diaphragm includes graphene molded into a base material [[;]], and wherein a concentration of the graphene is higher within a center portion of the diaphragm than within a flexible portion of the diaphragm such that an elastic modulus of the center portion is greater than an elastic modulus of the flexible portion. Currently amended
The portable electronic device according to claim 9, wherein: the center portion comprises: an inner center portion; and an outer center portion surrounding the inner center portion, wherein: the outer center portion has a graphene concentration that is lower than a graphene concentration of the inner center portion; and the flexible portion has a graphene concentration that is lower than the graphene concentration of the outer center portion. Original
The portable electronic device according to claim 9, wherein: the diaphragm forms a conically shaped dome structure; the conically shaped dome structure defines an edge portion surrounding the flexible portion; and the edge portion is attached to the support structure. Original
The portable electronic device according to claim 9, wherein: the base material is a polymer; and the graphene is a graphene flake material. Original
A method for manufacturing a diaphragm for an audio device, the method comprising: preparing a base material; molding g raphene flakes t e within the base material to create a composite mixture; and forming the diaphragm by molding the composite mixture, wherein the diaphragm includes a center portion including the graphene flakes and a flexible portion formed around the center portion, and wherein the center portion has a greater elastic modulus than the flexible portion. Withdrawn
The method of claim 15, wherein: adding the graphene flakes to the base material includes varying a concentration of the graphene flakes; and forming the diaphragm by molding the composite mixture comprises forming a first and second distinct portion of the diaphragm, each having a different concentration of graphene. Withdrawn
The method of claim 15, wherein: the composite mixture is a first composite mixture having a first size of graphene flakes; and the method further comprises: adding a second size of graphene flakes to the base material to create a second composite mixture, the first size being greater than the second size; molding the center portion of the diaphragm using the first composite mixture; and molding the flexible portion of the diaphragm surrounding the center portion using the second composite mixture. Withdrawn
The method of claim 15, wherein forming the diaphragm further comprises: forming an inner center portion of the center portion and having a first concentration of graphene flakes; forming an outer center portion of the center portion and having a second concentration of graphene flakes that is lower than the first concentration; and forming the flexible portion having a third concentration of graphene flakes that is lower than the second concentration. Withdrawn
The method of claim 15, wherein the base material comprises a polymer and the molding is performed with an injection molding process. Withdrawn
Layer stacks claimed or described, ordered top of device to substrate.
audio device with graphene composite diaphragm
portable electronic device with audio device
Materials described outside the worked examples.
graphene flake material
base material
Additional fabrication and treatment steps described in the patent.
Patent
Atlas literature
Patent
US 9,900,698Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 depicts an example electronic device including an audio device; [0017]
FIG. 2 is a cross-sectional view of a speaker device taken along section A-A; [0018]
FIG. 3 is a cross-sectional view of a microphone device taken along section B-B; [0019]
FIG. 4 is a cross-sectional view of an embodiments of a diaphragm taken along section A-A; [0020]
FIG. 5 is a cross-sectional view of another embodiment of a diaphragm taken along section A-A; [0021]
FIG. 6 is a process flow diagram of a process for making a diaphragm including graphene; and [0022]
FIG. 7 is an illustrative block diagram of an electronic device.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An audio device comprising: a support structure; an acoustic element disposed within a recess of the support structure; and a diaphragm coupled to the support structure, the diaphragm comprising: a center portion comprising a base material; a flexible portion comprising the base material and surrounding the center portion and configured to flex in response to a movement of the center portion with respect to the support structure; and a graphene flake material molded into the base material, wherein a concentration of the graphene flake material is higher within ef the center portion than within the flexible portion such that an elastic modulus of the center portion is greater than an elastic modulus of the flexible portion. Currently amended
The audio device of claim 1, wherein: the center portion has a first stiffness; the flexible portion has a second stiffness; and the first stiffness is greater than the second stiffness. Original
The audio device of claim 1, wherein: the center portion includes a first size of graphene flake; the flexible portion includes a second size of graphene flake; and the first size is greater than the second size. Original
The audio device of claim 1, wherein the diaphragm comprises: a membrane structure, at least a portion of which forms the flexible portion; and a composite cap structure bonded to a surface of the membrane structure and forming at least a portion of the center portion. Original
The audio device of claim 1, wherein: the base material comprises a polymer; and the graphene flake material is molded into the polymer. Original
The audio device of claim 1, wherein: the acoustic element comprises: a magnet disposed within the recess of the support structure; and a voice coil attached to the center portion of the diaphragm and electromagnetically coupled to the magnet; and the flexible portion is configured to flex in response to relative motion between the magnet and the voice coil. Original
The audio device of claim 1, wherein the audio device forms at least one of a speaker, a headphone, and a microphone. Original
Canceled
A portable electronic device comprising: a housing defining an opening; a display positioned in the opening of the housing; an audio device comprising: a support structure; a diaphragm flexibly connected to the support structure and configured to transmit or receive sound waves, wherein [[:]] the diaphragm includes graphene molded into a base material [[;]], and wherein a concentration of the graphene is higher within a center portion of the diaphragm than within a flexible portion of the diaphragm such that an elastic modulus of the center portion is greater than an elastic modulus of the flexible portion. Currently amended
The portable electronic device according to claim 9, wherein: the center portion comprises: an inner center portion; and an outer center portion surrounding the inner center portion, wherein: the outer center portion has a graphene concentration that is lower than a graphene concentration of the inner center portion; and the flexible portion has a graphene concentration that is lower than the graphene concentration of the outer center portion. Original
The portable electronic device according to claim 9, wherein: the diaphragm forms a conically shaped dome structure; the conically shaped dome structure defines an edge portion surrounding the flexible portion; and the edge portion is attached to the support structure. Original
The portable electronic device according to claim 9, wherein: the base material is a polymer; and the graphene is a graphene flake material. Original
A method for manufacturing a diaphragm for an audio device, the method comprising: preparing a base material; molding g raphene flakes t e within the base material to create a composite mixture; and forming the diaphragm by molding the composite mixture, wherein the diaphragm includes a center portion including the graphene flakes and a flexible portion formed around the center portion, and wherein the center portion has a greater elastic modulus than the flexible portion. Withdrawn
The method of claim 15, wherein: adding the graphene flakes to the base material includes varying a concentration of the graphene flakes; and forming the diaphragm by molding the composite mixture comprises forming a first and second distinct portion of the diaphragm, each having a different concentration of graphene. Withdrawn
The method of claim 15, wherein: the composite mixture is a first composite mixture having a first size of graphene flakes; and the method further comprises: adding a second size of graphene flakes to the base material to create a second composite mixture, the first size being greater than the second size; molding the center portion of the diaphragm using the first composite mixture; and molding the flexible portion of the diaphragm surrounding the center portion using the second composite mixture. Withdrawn
The method of claim 15, wherein forming the diaphragm further comprises: forming an inner center portion of the center portion and having a first concentration of graphene flakes; forming an outer center portion of the center portion and having a second concentration of graphene flakes that is lower than the first concentration; and forming the flexible portion having a third concentration of graphene flakes that is lower than the second concentration. Withdrawn
The method of claim 15, wherein the base material comprises a polymer and the molding is performed with an injection molding process. Withdrawn
Layer stacks claimed or described, ordered top of device to substrate.
audio device with graphene composite diaphragm
portable electronic device with audio device
Materials described outside the worked examples.
graphene flake material
base material
Additional fabrication and treatment steps described in the patent.
Patent
Atlas literature
Patent
US 9,900,698Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 depicts an example electronic device including an audio device; [0017]
FIG. 2 is a cross-sectional view of a speaker device taken along section A-A; [0018]
FIG. 3 is a cross-sectional view of a microphone device taken along section B-B; [0019]
FIG. 4 is a cross-sectional view of an embodiments of a diaphragm taken along section A-A; [0020]
FIG. 5 is a cross-sectional view of another embodiment of a diaphragm taken along section A-A; [0021]
FIG. 6 is a process flow diagram of a process for making a diaphragm including graphene; and [0022]
FIG. 7 is an illustrative block diagram of an electronic device.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An audio device comprising: a support structure; an acoustic element disposed within a recess of the support structure; and a diaphragm coupled to the support structure, the diaphragm comprising: a center portion comprising a base material; a flexible portion comprising the base material and surrounding the center portion and configured to flex in response to a movement of the center portion with respect to the support structure; and a graphene flake material molded into the base material, wherein a concentration of the graphene flake material is higher within ef the center portion than within the flexible portion such that an elastic modulus of the center portion is greater than an elastic modulus of the flexible portion. Currently amended
The audio device of claim 1, wherein: the center portion has a first stiffness; the flexible portion has a second stiffness; and the first stiffness is greater than the second stiffness. Original
The audio device of claim 1, wherein: the center portion includes a first size of graphene flake; the flexible portion includes a second size of graphene flake; and the first size is greater than the second size. Original
The audio device of claim 1, wherein the diaphragm comprises: a membrane structure, at least a portion of which forms the flexible portion; and a composite cap structure bonded to a surface of the membrane structure and forming at least a portion of the center portion. Original
The audio device of claim 1, wherein: the base material comprises a polymer; and the graphene flake material is molded into the polymer. Original
The audio device of claim 1, wherein: the acoustic element comprises: a magnet disposed within the recess of the support structure; and a voice coil attached to the center portion of the diaphragm and electromagnetically coupled to the magnet; and the flexible portion is configured to flex in response to relative motion between the magnet and the voice coil. Original
The audio device of claim 1, wherein the audio device forms at least one of a speaker, a headphone, and a microphone. Original
Canceled
A portable electronic device comprising: a housing defining an opening; a display positioned in the opening of the housing; an audio device comprising: a support structure; a diaphragm flexibly connected to the support structure and configured to transmit or receive sound waves, wherein [[:]] the diaphragm includes graphene molded into a base material [[;]], and wherein a concentration of the graphene is higher within a center portion of the diaphragm than within a flexible portion of the diaphragm such that an elastic modulus of the center portion is greater than an elastic modulus of the flexible portion. Currently amended
The portable electronic device according to claim 9, wherein: the center portion comprises: an inner center portion; and an outer center portion surrounding the inner center portion, wherein: the outer center portion has a graphene concentration that is lower than a graphene concentration of the inner center portion; and the flexible portion has a graphene concentration that is lower than the graphene concentration of the outer center portion. Original
The portable electronic device according to claim 9, wherein: the diaphragm forms a conically shaped dome structure; the conically shaped dome structure defines an edge portion surrounding the flexible portion; and the edge portion is attached to the support structure. Original
The portable electronic device according to claim 9, wherein: the base material is a polymer; and the graphene is a graphene flake material. Original
A method for manufacturing a diaphragm for an audio device, the method comprising: preparing a base material; molding g raphene flakes t e within the base material to create a composite mixture; and forming the diaphragm by molding the composite mixture, wherein the diaphragm includes a center portion including the graphene flakes and a flexible portion formed around the center portion, and wherein the center portion has a greater elastic modulus than the flexible portion. Withdrawn
The method of claim 15, wherein: adding the graphene flakes to the base material includes varying a concentration of the graphene flakes; and forming the diaphragm by molding the composite mixture comprises forming a first and second distinct portion of the diaphragm, each having a different concentration of graphene. Withdrawn
The method of claim 15, wherein: the composite mixture is a first composite mixture having a first size of graphene flakes; and the method further comprises: adding a second size of graphene flakes to the base material to create a second composite mixture, the first size being greater than the second size; molding the center portion of the diaphragm using the first composite mixture; and molding the flexible portion of the diaphragm surrounding the center portion using the second composite mixture. Withdrawn
The method of claim 15, wherein forming the diaphragm further comprises: forming an inner center portion of the center portion and having a first concentration of graphene flakes; forming an outer center portion of the center portion and having a second concentration of graphene flakes that is lower than the first concentration; and forming the flexible portion having a third concentration of graphene flakes that is lower than the second concentration. Withdrawn
The method of claim 15, wherein the base material comprises a polymer and the molding is performed with an injection molding process. Withdrawn
Layer stacks claimed or described, ordered top of device to substrate.
audio device with graphene composite diaphragm
portable electronic device with audio device
Materials described outside the worked examples.
graphene flake material
base material
Additional fabrication and treatment steps described in the patent.
Patent
Atlas literature
Patent
US 9,900,698Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 depicts an example electronic device including an audio device; [0017]
FIG. 2 is a cross-sectional view of a speaker device taken along section A-A; [0018]
FIG. 3 is a cross-sectional view of a microphone device taken along section B-B; [0019]
FIG. 4 is a cross-sectional view of an embodiments of a diaphragm taken along section A-A; [0020]
FIG. 5 is a cross-sectional view of another embodiment of a diaphragm taken along section A-A; [0021]
FIG. 6 is a process flow diagram of a process for making a diaphragm including graphene; and [0022]
FIG. 7 is an illustrative block diagram of an electronic device.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An audio device comprising: a support structure; an acoustic element disposed within a recess of the support structure; and a diaphragm coupled to the support structure, the diaphragm comprising: a center portion comprising a base material; a flexible portion comprising the base material and surrounding the center portion and configured to flex in response to a movement of the center portion with respect to the support structure; and a graphene flake material molded into the base material, wherein a concentration of the graphene flake material is higher within ef the center portion than within the flexible portion such that an elastic modulus of the center portion is greater than an elastic modulus of the flexible portion. Currently amended
The audio device of claim 1, wherein: the center portion has a first stiffness; the flexible portion has a second stiffness; and the first stiffness is greater than the second stiffness. Original
The audio device of claim 1, wherein: the center portion includes a first size of graphene flake; the flexible portion includes a second size of graphene flake; and the first size is greater than the second size. Original
The audio device of claim 1, wherein the diaphragm comprises: a membrane structure, at least a portion of which forms the flexible portion; and a composite cap structure bonded to a surface of the membrane structure and forming at least a portion of the center portion. Original
The audio device of claim 1, wherein: the base material comprises a polymer; and the graphene flake material is molded into the polymer. Original
The audio device of claim 1, wherein: the acoustic element comprises: a magnet disposed within the recess of the support structure; and a voice coil attached to the center portion of the diaphragm and electromagnetically coupled to the magnet; and the flexible portion is configured to flex in response to relative motion between the magnet and the voice coil. Original
The audio device of claim 1, wherein the audio device forms at least one of a speaker, a headphone, and a microphone. Original
Canceled
A portable electronic device comprising: a housing defining an opening; a display positioned in the opening of the housing; an audio device comprising: a support structure; a diaphragm flexibly connected to the support structure and configured to transmit or receive sound waves, wherein [[:]] the diaphragm includes graphene molded into a base material [[;]], and wherein a concentration of the graphene is higher within a center portion of the diaphragm than within a flexible portion of the diaphragm such that an elastic modulus of the center portion is greater than an elastic modulus of the flexible portion. Currently amended
The portable electronic device according to claim 9, wherein: the center portion comprises: an inner center portion; and an outer center portion surrounding the inner center portion, wherein: the outer center portion has a graphene concentration that is lower than a graphene concentration of the inner center portion; and the flexible portion has a graphene concentration that is lower than the graphene concentration of the outer center portion. Original
The portable electronic device according to claim 9, wherein: the diaphragm forms a conically shaped dome structure; the conically shaped dome structure defines an edge portion surrounding the flexible portion; and the edge portion is attached to the support structure. Original
The portable electronic device according to claim 9, wherein: the base material is a polymer; and the graphene is a graphene flake material. Original
A method for manufacturing a diaphragm for an audio device, the method comprising: preparing a base material; molding g raphene flakes t e within the base material to create a composite mixture; and forming the diaphragm by molding the composite mixture, wherein the diaphragm includes a center portion including the graphene flakes and a flexible portion formed around the center portion, and wherein the center portion has a greater elastic modulus than the flexible portion. Withdrawn
The method of claim 15, wherein: adding the graphene flakes to the base material includes varying a concentration of the graphene flakes; and forming the diaphragm by molding the composite mixture comprises forming a first and second distinct portion of the diaphragm, each having a different concentration of graphene. Withdrawn
The method of claim 15, wherein: the composite mixture is a first composite mixture having a first size of graphene flakes; and the method further comprises: adding a second size of graphene flakes to the base material to create a second composite mixture, the first size being greater than the second size; molding the center portion of the diaphragm using the first composite mixture; and molding the flexible portion of the diaphragm surrounding the center portion using the second composite mixture. Withdrawn
The method of claim 15, wherein forming the diaphragm further comprises: forming an inner center portion of the center portion and having a first concentration of graphene flakes; forming an outer center portion of the center portion and having a second concentration of graphene flakes that is lower than the first concentration; and forming the flexible portion having a third concentration of graphene flakes that is lower than the second concentration. Withdrawn
The method of claim 15, wherein the base material comprises a polymer and the molding is performed with an injection molding process. Withdrawn
Layer stacks claimed or described, ordered top of device to substrate.
audio device with graphene composite diaphragm
portable electronic device with audio device
Materials described outside the worked examples.
graphene flake material
base material
Additional fabrication and treatment steps described in the patent.
polymer
graphene-flake composite polymer
polymer
graphene-flake composite polymer
polymer
graphene-flake composite polymer
polymer
graphene-flake composite polymer