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Graphene patents

      

This page is updated frequently with new Graphene-related patent applications.

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 Graphene-coated metal oxide spinel cathodes patent thumbnailGraphene-coated metal oxide spinel cathodes
Disclosed herein are graphene-coated lithium manganese oxide spinels cathodes for high-performance batteries li-ion batteries and methods for making thereof. A single-layer graphene coating is shown to significantly reduce manganese loss in the cathodes while concurrently promoting the formation of a well-defined solid electrolyte interphase layer..
Uchicago Argonne, Llc


 Hole blocking, electron transporting and window layer for optimized culn (1-x)ga(x)se2 solar cells patent thumbnailHole blocking, electron transporting and window layer for optimized culn (1-x)ga(x)se2 solar cells
Thin-film photovoltaic devices and methods of their use and manufacture are disclosed. More particularly, polycrystalline cuin(1-x)gaxse2 (cigs) based thin-film photovoltaic devices having independently tunable sublayers are disclosed.
The Research Foundation For The State University Of New York


 Photoelectronic device using hybrid structure of silica nano particles - graphene quantum dots and  manufacturing the same patent thumbnailPhotoelectronic device using hybrid structure of silica nano particles - graphene quantum dots and manufacturing the same
Disclosed are a photoelectronic device using a hybrid structure of silica nanoparticles and graphene quantum dots and a method of manufacturing the same. The photoelectronic device according to the present disclosure has a hybrid structure including graphene quantum dots (gods) bonded to surfaces of silica nanoparticles (snps), thereby increasing energy transfer efficiency..
University-industry Cooperation Group Of Kyung Hee University


 Graphene-based magnetic hall sensor for fluid flow analysis at nanoscale level patent thumbnailGraphene-based magnetic hall sensor for fluid flow analysis at nanoscale level
A method of detecting a particle comprises magnetizing a particle using an ac magnetic field; generating an ac voltage in a sensing device having a conductive substantially 2-dimensional lattice structure from the magnetized particle; superimposing a dc magnetic field on the generated ac voltage in the sensing device; and measuring an ac hall voltage at the sensing device.. .
International Business Machines Corporation


 Microwave induced curing of nanomaterials for geological formation reinforcement patent thumbnailMicrowave induced curing of nanomaterials for geological formation reinforcement
Embodiments of the present disclosure pertain to methods of forming a polymer composite by exposing a solution that includes nanomaterials (e.g., functionalized graphene nanoribbons) and cross-linkable polymer components (e.g., thermoset polymers and monomers) to a microwave source, where the exposing results in the curing of the cross-linkable polymer component in the presence of the nanomaterial to form the polymer composite. The solution may be exposed to a microwave source in a geological formation such that the formed polymer composite becomes embedded with the geological formation and thereby enhances the stability of the geological formation.
M-i, L.l.c.


 Method of preparing of natural graphene cellulose blended meltblown nonwoven fabric patent thumbnailMethod of preparing of natural graphene cellulose blended meltblown nonwoven fabric
This application describes a method of preparation of a natural graphene cellulose blended meltblown nonwoven fabric, which comprises using a graphite powder as a raw material for preparing a graphene solution, adding the graphene solution to a slurry formed by mixing and dissolving a wood pulp with n-methylmorpholine n-oxide (nmmo), removing the water content thereof to form a spinning dope, and then directly preparing the natural graphene cellulose blended meltblown nonwoven fabric by a meltblown process. The present method does not require a highly toxic hydrazine hydrate solution.
Acelon Chemicals And Fiber Corporation


 Method of preparing of natural graphene cellulose blended spunbond nonwoven fabric patent thumbnailMethod of preparing of natural graphene cellulose blended spunbond nonwoven fabric
This application describes a method of preparation of a natural graphene cellulose blended spunbond nonwoven fabric, which comprises using a graphite powder as a raw material for preparing a graphene solution, adding the graphene solution to a slurry formed by mixing and dissolving a wood pulp with n-methylmorpholine n-oxide (nmmo), removing the water content thereof to form a spinning dope, and then directly preparing the natural graphene cellulose blended spunbond nonwoven fabric by a spunbond process. The present method does not require a highly toxic hydrazine hydrate solution.
Acelon Chemicals And Fiber Corporation


 Method of preparing natural graphene cellulose blended fiber patent thumbnailMethod of preparing natural graphene cellulose blended fiber
This application describes a method of preparation of a natural graphene cellulose blended fiber, which comprises using a graphite powder as a raw material for preparing a graphene solution, adding the graphene solution to a slurry formed by mixing and dissolving a wood pulp with n-methylmorpholine n-oxide (nmmo), removing the water content thereof to form a spinning dope, and then spinning the spinning dope by a dry-jet wet method to manufacture a natural graphene cellulose blended fiber. The present method does not require a highly toxic hydrazine hydrate solution.
Acelon Chemicals And Fiber Corporation


 Device for depositing nanotubes patent thumbnailDevice for depositing nanotubes
A device is provided for depositing carbonaceous structures, for example layers in the form of nanotubes or graphene on a substrate, which is supported by a substrate support disposed in a process chamber housing. A process gas can be delivered onto the substrate through gas outlet openings of a gas inlet element disposed in the process chamber housing.
Aixtron Se


 Functionalized particles for label-free dna impedimetric biosensor for dna and rna sensing patent thumbnailFunctionalized particles for label-free dna impedimetric biosensor for dna and rna sensing
In one embodiment, 3-aminopropyltriethoxysilane (aptes) functionalized graphene oxide (aptes-go) wrapped sio2 particle composite (sio2@aptes-go) was prepared via the self-assembly process of aptes-go sheets and sio2 particles. Transmission electron microscopy (tem) and attenuated total reflectance-fourier transform infrared spectroscopy (atr-ftir) confirmed wrapping of the sio2 particles by the aptes-go sheets.
Purdue Research Foundation


Manufacture graphene based resin pellet and manufacture conductive seal

The present invention provides a manufacture method of a graphene based resin pellet and a manufacture method of conductive seal. The present invention provides a manufacture method of a graphene based resin pellet, which employs green environmental protection flashing light for deoxidizing graphene oxide with an exposure method.
Shenzhen China Star Optoelectronics Technology Co. , Ltd.

Reduced graphene oxide barrier materials

This invention relates to barrier materials comprising reduced graphene oxide, methods of making said materials and their uses. The reduced graphene oxide is preferably formed from the reduction of graphene oxide by hi, hbr or ascorbic acid..
The University Of Manchester

Porous membrane structures and related techniques

A conductive porous fabric can be formed, such as by using a template material. The porous fabric can be conductive, such as thick enough to be self-supporting, or supported such as by another structure.

Method for manufacturing negative plate of secondary battery

The present invention provides a method for manufacturing a negative plate of a secondary battery, which includes the following steps: providing multiple sheets of functional graphene; compressing the functional graphene to form a graphene target; providing copper foil, and forming a microstructure on a surface of the copper foil, so as to strengthen attachment between a graphene layer and the copper foil; depositing the graphene target on the microstructure of the surface of the copper foil, to form the graphene layer; and repairing the graphene layer by using an excimer laser. The foregoing manufacturing method can greatly prolong a cycle life of the whole graphene cathode, and increase a reversible capacitance of a battery..
Metal Industries Research & Development Centre

Organic solar cell and preparation method thereof

An organic solar cell device is provided, including a first electrode, a photoactive layer, a hole transport layer, and a second electrode that are stacked successively. The photoactive layer includes an electron receptor material and an electron donor material.
Huawei Technologies Co., Ltd.

Graphene device and operating the same

A graphene device and a method of operating the same are provided. The graphene device includes: an active layer including a plurality of meta atoms spaced apart from each other, each of the meta atoms having a radial shape, and a graphene layer that contacts each of the plurality of meta atoms; and a dielectric layer covering the active layer..
Industry-academic Cooperation Foundation, Yonsei U Niversity

Image sensor and manufacturing the same

An image sensor includes a substrate that further includes a sensor array and a heat spreading layer on a surface of the substrate. The heat spreading layer may include one or more of a synthetic diamond layer, a graphene layer, or a diamond-like carbon (dlc) layer.
Samsung Electronics Co., Ltd.

Systems and methods for filtering and computation using tunnelling transistors

An electrical circuit is disclosed that comprises plurality of tunneling field-effect transistors (tfets) arranged in a diffusion network matrix having a plurality of nodes wherein, for each of the tfets that is not on an end of the matrix, a drain of the tfet is electrically coupled with the source of at least one of the other tfets at a node of the matrix and a source of the tfet is electrically coupled with the drain of at least one of the other tfets at another node of the matrix. The electrical circuit further comprises a plurality of capacitors, wherein a respective one of the plurality of capacitors is electrically coupled with each node that includes the source of at least one tfet and the drain of at least one tfet.
University Of Notre Dame Du Lac

Nanocomposite films with conducting and insulating surfaces

Nanocomposite films comprising conductive nanofiller dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of filler and differing electrical resistivity values are provided. In particular, nanocomposites comprising polyvinyl alcohol as the polymer matrix and nanosheets and/or nanoplatelets of graphene as the conductive filler are provided.
King Fahd University Of Petroleum And Minerals

Graphene coated silver alloy wire and methods for manufacturing the same

A graphene coated silver alloy wire is provided. The composite wire includes a core wire and one to three layers of graphene covering surfaces of the core wire.
Wire Technology Co., Ltd.

Electrochemical biosensor for metabolic disease of cattle

The present application relates to biosensors and methods for detecting and/or quantifying a target substrate. The biosensors comprise an electrode with a surface layer of tris-ruthenium bipyridine2+ complex modified graphene oxide and at least one enzyme linked to the surface layer..
University Of Guelph

Graphene-based multi-modal sensors

A method for fabricating a composite film structure, the method includes determining a desired morphology for a metallic layer of the composite film structure, selecting a first metal substrate based on the determining, transferring a graphene layer onto the first metal substrate, depositing the metallic layer on the graphene layer to achieve the desired morphology, and removing the first metal substrate from the graphene and the deposited metallic layer to form the composite film structure. A surface energy difference between the first metal substrate and the deposited metallic layer results in the desired morphology of the metallic layer..
The Regents Of The University Of California

Nanostructure and optical device including the nanostructure

Provided are a nanostructure and an optical device including the nanostructure. The nanostructure is formed on a two-dimensional material layer such as graphene and includes nanopatterns having different shapes.
Unist (ulsan National Institute Of Science And Technology)

Semiconductor device and formation

A semiconductor device and method of formation are provided. The semiconductor device includes a substrate, a first active area over the substrate, a second active area over the substrate, a graphene channel between the first active area and the second active area, and a first in-plane gate.
National Taiwan University

High optical transparent two-dimensional electronic conducting system and process for generating same

Hybrid transparent conducting materials are disclosed with combine a polycrystalline film and conductive nanostructures, in which the polycrystalline film is “percolation doped” with the conductive nanostructures. The polycrystalline film preferably is a single atomic layer thickness of polycrystalline graphene, and conductive nanostructures preferably are silver nanowires..
Purdue Research Foundation

Graphene quantum dot-polymer composites and methods of making the same

Various embodiments of the present disclosure pertain to methods of forming polymer composites that include polymers and graphene quantum dots. The methods occur by mixing a polymer component (e.g., polymers, polymer precursors and combinations thereof) with graphene quantum dots.
William Marsh Rice University

Sorting two-dimensional nanomaterials by thickness

The present teachings provide, in part, methods of separating two-dimensional nanomaterials by atomic layer thickness. In certain embodiments, the present teachings provide methods of generating graphene nanomaterials having a controlled number of atomic layer(s)..
Northwestern University

Large scale production of thinned graphite, graphene, and graphite-graphene composites

Embodiments described herein relate generally to large scale synthesis of thinned graphite and in particular, few layers of graphene sheets and graphene-graphite composites. In some embodiments, a method for producing thinned crystalline graphite from precursor crystalline graphite using wet ball milling processes is disclosed herein.
Group Nanoxplore Inc.

Graphene film and manufacturing method thereof

A graphene film and a manufacturing method thereof are disclosed. A polymer solution and graphene flakes (such as graphene powder) are mixed to form liquid graphene.
Chung Yuan Christian University

Method of mass producing few-layer graohene powders

The present invention relates to a method for producing few-layer graphene powders. An electrolytic solution is introduced as a coagulation floating agent wherein graphene is able to be suspended thereon, which prevent the graphene from coacervation..
Shandong Yuhuang New Energy Tethnology Co., Ltd

Electronic preamplifier system

A graphene microphone preamplifier is a minimalist design working in class a with large quiescent current in a push-pull configuration, with automatic balancing of voltage imbalance.. .

Signal cable and its application

The present invention is a signal cable for transmitting the signal between the transmitter and the receiver, providing an electrical connection by a connecting part, wherein said connecting portion comprises a layer of graphene disposed on a polymer layer, characterised in that it comprises two conductors, wherein each conductor includes a connecting portion arranged in a protective insulating layer (3) and the coupling portion takes the form of a tape, in which the graphene layer (1) is disposed between two polymer layers (2).. .

Method for manufacturing storage battery electrode

A storage battery electrode with high capacity is stably manufactured with the use of a strongly basic active material. The basicity of a mixture of a strongly basic active material and graphene oxide, the mixture subjected to heat treatment, or the mixture subjected to reduction by addition of a reducing agent is measured.
Semiconductor Energy Laboratory Co., Ltd.

Josephson junction readout for graphene-based single photon detector

A detector for detecting single photons of infrared radiation or longer wavelength electromagnetic radiation. In one embodiment a waveguide configured to transmit infrared radiation is arranged to be adjacent a graphene sheet and configured so that evanescent waves from the waveguide overlap the graphene sheet.
Raytheon Bbn Technologies Corp.

Hybrid interconnect structure and electronic device employing the same

A hybrid interconnect structure includes a graphene layer between a non-metallic material layer and a metal layer, and a first interfacial bonding layer between the non-metallic material layer and the graphene layer, or the metal layer and the graphene layer. The graphene layer connects the non-metallic material layer and the metal layer, and the first bonding layer includes a metallic material..
Samsung Electronics Co., Ltd.

Graphene capacitor, particularly for audio systems, and its use

Embodiments of the present invention provide a capacitor that includes two electric cladding elements with at least one graphene layer. The two electric cladding elements are separated by a layer of electrically insulating polymer.

Tester for detecting graphene security element in a security document, and the element detection method

A tester is described for detecting a graphene security element in a secure document, such as a banknote, an identification card, etc. As well as a method for detection of that element.

Security feature against forgery, in particular for high-value products, product authentication method and product authentication system

The present invention is a security feature against counterfeiting, in particular for high-value products, having a graphic code disposed on a graphene nanocomposite material layer, the graphene nanocomposite material layer having at least one layer of graphene (g-dg) disposed on an adhesive layer (p), preferably a polymer. The invention also includes a system and method for authenticating a product using such a feature..

Graphene touch sensor, operating same, and manufacturing same

A graphene touch sensor is provided. The graphene touch sensor includes a first substrate, a first pattern disposed on the first substrate and having a first protruding region and a first concave region, a second substrate on the first substrate, a second pattern disposed on the second substrate to face the first pattern and having a second protruding region and a second concave region, and a graphene layer between the first pattern and the second pattern..
Iucf-hyu (industry-university Cooperation Foundation Hanyang University)

Euv pellicle film and manufacturing method thereof

Provided is a pellicle film used for protecting an euv lithographic mask including a first layer, a second layer, and a layered material. The second layer is formed on the first layer.
G-force Nanotechnology Ltd.

Security element against counterfeiting security printing, especially banknotes

The present invention is a security feature against counterfeiting security printing, in particular banknotes, having at least one graphene quantum dot (gqd) that has a graphene nanoparticle diameter ranging from 0.5 nm to 60 nm, and containing from 1 to 90 layers of graphene disposed in the flexible layer of graphene nanocomposite material, where the elastic layer of graphene nanocomposite material comprises at least one layer of graphene arranged on the adhesive layer. The invention also includes the use of the security feature according to the invention, and a method and system for verifying the authenticity of security printing..

Method for obtaining a composite coating on titanium implants for tissue engineering

A composite coating and method for preparing the composite coating on titanium implants for tissue culture and tissue engineering is provided. The implants are characterized in that the titanium component to be coated is placed in a aqueous solution containing calcium cations, phosphate anions, and dispersed carbon nanoparticles (such as single layer graphene oxide or graphene oxide) in an amount of about 0.05%-1.50% by weight relative to the total weight of aqueous solution.
Warsaw University Of Technology

Method of manufacturing large area graphene and graphene-based photonics devices

The present invention relates to a method of manufacturing large area graphene for graphene-based photonics devices such as bolometric graphene detectors, or for use as a saturable absorber in ultra-high bandwidth detectors for producing ultrafast laser pulses. The method includes: growing a first graphene layer on one side of a metal substrate, and a second graphene layer on another side of the metal substrate; coating the first graphene layer with a plurality of resist layers including a low molecular weight polymethylmethacrylate, and a high molecular weight polymethylmethacrylate; removing the second graphene layer and the metal substrate to reveal the first graphene layer; disposing the first graphene layer on an optical substrate; and removing the plurality of resist layers from the first graphene layer to reveal a final graphene layer, which can be used as the basis to manufacture a multilayer graphene structure for graphene detectors..
U.s.a. Represented By The Administrator Of The National Aeronautics And Space Administration

Lubrication material using self-dispersed crumpled graphene balls as additives in oil for friction and wear reduction

A method for forming a lubrication material using self-dispersed crumpled graphene balls as additives in a lubricant base fluid for friction and wear reduction. The lubricant base fluid may be, for example, a polyalphaolefin type-4 (pao4) oil.
Northwestern University

Polycyclic aromatic hydrocarbon functionalized isobutylene copolymers for dispersing graphene and graphite

Polycyclic aromatic hydrocarbon (pah) functionalized isobutylene copolymers, methods for making a pah functionalized isobutylene copolymer comprising combining a halogenated copolymer with a pah in a solvent under basic conditions at a temperature ranging from 30° c. To 150° c., the use of these pah functionalized copolymers as a dispersant in elastomeric nanocomposite compositions comprising a halobutyl rubber matrix and nanoparticles of graphite or graphene, and a tire innerliner or innertube produced from these elastomeric nanocomposite compositions is disclosed..
Exxonmobil Chemical Patents Inc.

Carbon nanosheets

A combined hydrothermal and activation process that uses hemp bast fiber as the precursor to achieve graphene-like carbon nanosheets, a carbon nanosheet including carbonized crystalline cellulose, a carbon nanosheet formed by carbonizing crystalline cellulose, a capacitative structure includes interconnected carbon nanosheets of carbonized crystalline cellulose, a method of forming a nanosheet including carbonizing crystalline cellulose to create carbonized crystalline cellulose. The interconnected two-dimensional carbon nanosheets also contain very high levels of mesoporosity..
The Governors Of The University Of Alberta

Nanoparticle compositions and methods of making and using the same

Water soluble graphene oxide nanoparticles (go) are provided having graphene sheets containing carboxylic and hydroxyl groups. The diameter of the go when present in a closed form ranges from about 40 nm to 120 nm.
Cromoz, Inc.





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This listing is a sample listing of patent applications related to Graphene for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Graphene with additional patents listed. Browse our RSS directory or Search for other possible listings.


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