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Graphite patents



      
           
This page is updated frequently with new Graphite-related patent applications. Subscribe to the Graphite RSS feed to automatically get the update: related Graphite RSS feeds. RSS updates for this page: Graphite RSS RSS


Composite separator for polymer electrolyte membrane fuel cell and method for manufacturing the same

Composite separator for polymer electrolyte membrane fuel cell and method for manufacturing the same

Process for removing aromatics from water used in processing coal tar

Uop

Process for removing aromatics from water used in processing coal tar

Process for removing aromatics from water used in processing coal tar

Toyo Tanso

Carbon crucible and method of manufacturing same

Date/App# patent app List of recent Graphite-related patents
05/21/15
20150141701
 Process for removing a product from coal tar patent thumbnailnew patent Process for removing a product from coal tar
A process for removing at least one product from coal tar is described. The process involves extraction with an extraction agent or adsorption with an adsorbent.
Uop Llc
05/21/15
20150140472
 Composite separator for polymer electrolyte membrane fuel cell and  manufacturing the same patent thumbnailnew patent Composite separator for polymer electrolyte membrane fuel cell and manufacturing the same
For this purpose, the present invention provides a method for manufacturing a composite separator for a polymer electrolyte membrane fuel cell, the method including: preparing a prepreg as a continuous carbon fiber-reinforced composite and a graphite foil; allowing the cut prepreg and graphite foil to pass through a stacking/compression roller to be compressed; allowing the prepreg in which the graphite foil is integrally stacked to be heated and pressed by a hot press such that hydrogen, air, and coolant flow fields are formed or to pass through a hot roller to be formed into a separator; removing unnecessary portions from the heated and pressed separator using a trim cutter; and post-curing the thus formed separator, wherein the graphite foil may be stacked on the prepreg as the continuous carbon fiber-reinforced composite such that a graphite layer is integrally formed with the prepreg.. .
05/21/15
20150140438
 Graphene powder,  producing graphene powder and electrode for lithium ion battery containing graphene powder patent thumbnailnew patent Graphene powder, producing graphene powder and electrode for lithium ion battery containing graphene powder
In order to prepare a highly conductive and highly dispersible graphene powder and to obtain an electrode for a lithium ion battery with excellent performance utilizing the highly conductive and highly dispersible graphene, a graphene powder and a preparation method thereof is provided. The graphene powder comprises a compound having a catechol group adsorbing on the surface of graphene in a weight ratio of 5-50% relative to the grapheme and the element ratio of oxygen to carbon in the graphene powder measured by x-ray photoelectron spectroscopy is 0.06 or more and 0.20 or less.
Toray Industries, Inc.
05/21/15
20150140435
 Rechargeable lithium battery patent thumbnailnew patent Rechargeable lithium battery
A rechargeable lithium battery including a negative electrode, the negative electrode including a silicon-based material and graphite; a positive electrode; and an electrolyte, wherein the negative electrode includes silicon in an amount of greater than 0 wt % and less than or equal to about 2 wt %, based on a total weight of the silicon-based material and the graphite, and the rechargeable lithium battery has a discharge cut-off voltage of greater than or equal to about 3.1 v.. .
Samsung Sdi Co., Ltd.
05/21/15
20150139847
 Sintered bearing patent thumbnailnew patent Sintered bearing
Provided is a sintered bearing (1) obtained by molding raw material powders containing graphite powder and metal powder in a mold, followed by sintering, in which: the graphite powder to be used includes granulated graphite powder; and a ratio of free graphite in a bearing surface (1a) of the sintered bearing is set to from 25% to 80% in terms of an area ratio. An average grain size of the granulated graphite powder is set to from 60 μm to 500 μm.
Ntn Corporation
05/21/15
20150136881
 Method for producing graphene patent thumbnailnew patent Method for producing graphene
The invention uses a dispersion (303) of suspended single-layer graphene (201), multilayer graphene (202), and graphite (203), and applies a magnetic field to the dispersion (303) to separate the single-layer graphene (201) from the dispersion (303). In the magnetic field applying step of the graphene producing method, the single-layer graphene (201), the multilayer graphene (202), and the graphite (203) are situated at different locations in solvent by using the difference in the diamagnetism strengths of the single-layer graphene (201), the multilayer graphene (202), and the graphite (203)..
Panasonic Intellectual Property Management Co. Ltd.
05/21/15
20150136696
 Process for removing aromatics from water used in processing coal tar patent thumbnailnew patent Process for removing aromatics from water used in processing coal tar
A process for treating water used in a coal tar process is described. The process involves treating the water with extraction with an extraction agent or adsorption with an adsorbent.
Uop Llc
05/21/15
20150136660
 Process for removing a contaminant from coal tar patent thumbnailnew patent Process for removing a contaminant from coal tar
A process for removing at least one contaminant from coal tar is described. The process involves extraction with an extraction agent or adsorption with an adsorbent.
Uop Llc
05/21/15
20150136654
 Process for treatment of pitch from coal tar patent thumbnailnew patent Process for treatment of pitch from coal tar
A process for treating a pitch fraction from coal tar is described. The pitch fraction is contacted with a solvent, an extraction agent, or an adsorbent to remove at least one contaminant, such as oxygenate compounds, nitrogen containing compounds, and sulfur containing compounds.
Uop Llc
05/21/15
20150136485
 Ignition coil assembly with terminals connecting insert patent thumbnailnew patent Ignition coil assembly with terminals connecting insert
An ignition system comprises an ignition coil assembly (100) that supplies a high voltage electric current to a resistor-type spark plug (20). The ignition coil assembly (100) includes an ignition coil (140), a high voltage coil terminal (120), a terminals connecting insert (30) and an insulator (40).
05/21/15
20150136360
new patent

Thermal interface pad and production method thereof, and heat dissipating system


A thermal interface pad, includes a substrate and carbon nanowires, where the substrate has a first surface and a second surface opposite to the first surface, the carbon nanowires are disposed on both the first surface and the second surface of the substrate, and the carbon nanowires are arranged in an array. The substrate includes a flexible composite metal film, or a material of the substrate includes at least one of flexible graphite and a solder alloy, and the flexible composite metal film is a flexible metal film with a surface coated with nickel, silver or gold.
Huawei Technologies Co., Ltd.
05/21/15
20150136303
new patent

Method for manufacturing compound heat sink


The present invention provides a method for manufacturing a compound heat sink. Firstly, providing an artificial graphite sheet, and then performing a surface treatment process on the artificial graphite sheet to form a rugged structure on the artificial graphite sheet as a first embedding structure.
Hugetemp Energy Ltd.
05/21/15
20150136017
new patent

Carbon crucible and manufacturing same


A carbon crucible (1) has a structure including a straight trunk portion (9) and a tray portion (10) vertically separated from each other. The straight trunk portion (9) is made of a carbon fiber-reinforced carbon composite material and the tray portion (10) is made of graphite.
Toyo Tanso Co., Ltd.
05/14/15
20150132654

Method of preparing graphene and anode mixture for lithium secondary battery including graphene prepared thereby


Disclosed herein is a method of preparing porous graphene from porous graphite, including 1) thermochemically reacting a highly crystalline carbide compound with a halogen element-containing gas to give a porous carbide-derived carbon; 2) treating the carbide-derived carbon with an acid, thus preparing a carbide-derived carbon oxide; and 3) reducing the carbide-derived carbon oxide. An anode mixture for a secondary battery including the graphene and an anode for a secondary battery including the anode mixture are also provided..
05/14/15
20150132548

Structures having graphene sets


graphite-based devices with a reduced characteristic dimension and methods for forming such devices are provided. One or more thin films are deposited onto a substrate and undesired portions of the deposited thin film or thin films are removed to produce processed elements with reduced characteristic dimensions.
05/14/15
20150132498

Metal-backed plain bearing


A bearing comprises a resin matrix filled with fluoropolymer, graphite, and other discrete particles of an additive material that is attached to a backing material. The specific selection and mix of fillers with the resin matrix provides the desired blend of bearing properties such as wear resistance, fatigue and erosion resistance and low friction whilst maintaining sufficient flexibility for being formed into flanged cylindrical geometries without detriment to the adherence of the lining to the backing.
05/14/15
20150130098

Polyamic acid, polyimide, and manufacturing graphite sheet


Disclosed is a method of fabricating a graphite sheet, including: polymerizing diamines and a dianhydride to form a polyamic acid. The polyamic acid is solvent casted on a substrate and hot baked to form a polyamic acid film or gel film.
05/14/15
20150129544

Methods for forming structures by generation of isolated graphene layers having a reduced dimension


graphite-based devices with a reduced characteristic dimension and methods for forming such devices are provided. One or more thin films are deposited onto a substrate and undesired portions of the deposited thin film or thin films are removed to produce processed elements with reduced characteristic dimensions.
05/07/15
20150126415

Drilling fluids with nano and granular particles and their use for wellbore strengthening


There is described a drilling fluid for wellbore strengthening having nanoparticles and granular particles. In one aspect described herein, the drilling fluid is an invert emulsion based fluid.
Nfluids Inc.
05/07/15
20150125752

Negative electrode active material for lithium ion secondary battery and lithium ion secondary battery


Conventionally, there is a problem that a volume of a negative electrode active material changes during a charge-discharge cycle, a conductive network in a negative electrode gradually degrades, and thus a capacity of the negative electrode decreases. To solve the problem, the present invention has an object to prevent a reduction in capacity of the negative electrode, and increase life of a lithium ion secondary battery.
Hitachi, Ltd.
05/07/15
20150125604

Method of producing graphene


Graphene can be produced from the byproducts formed during electrolysis of coal. These byproducts may be electrolyzed coal particles, gelatinous film formed on the electrolyzed coal particles, or the electrolyzed coal particles together with the gelatinous film.
Ohio University
05/07/15
20150123043

Conductive composition


An electrically conductive composition of the present invention contains an expanded graphite, carbon nanotubes, and a polymer compound. An amount of the expanded graphite to be contained is not less than 30 parts by weight and not more than 70 parts by weight with respect to 100 parts by weight of a total amount of the expanded graphite and the polymer compound.
Zeon Corporation
05/07/15
20150122483

Carbon composites, methods of manufacture, and uses thereof


A carbon composite contains expanded graphite; and at least one of a filler or a reinforcement; wherein the expanded graphite comprises a plurality of randomly oriented basal planes. Methods of making the carbon composite and articles comprising the carbon composite are also disclosed..
Baker Hughes Incorporated
05/07/15
20150122244

Solar energy receiver


A solar energy receiver comprises a panel, having a graphite core, a substantially gas tight housing encasing the graphite core, a heat exchanger comprising heat exchanger tubing, a heat exchanger inlet and a heat exchanger outlet. The heat exchanger tubing is at least partially embedded in the graphite core, and the heat exchanger inlet and the heat exchanger outlet extend through the housing.
Graphite Energy N.v.


Popular terms: [SEARCH]

Graphite topics: Internal Combustion Engine, Optical Fiber, Fatty Acid, Combustion, Fatty Acid Amide, Circuit Board, Crystallin, Conductive Polymer, Polymer Binder, Carboxylic Acid, Contraction, Lithium Ion, Graphite Electrode, Homeopathic Medicine, Homeopathic

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