Karthikeyan, US
Annamalai Karthikeyan, Quincy, MA US
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20100255387 | PHOTO-ACTIVATION OF SOLID OXIDE FUEL CELLS AND GAS SEPARATION DEVICES - In various aspects, provided are methods for: (a) improving oxygen incorporation in a solid oxide layer less than about 1000 nm thick; (b) extending the on-set of mixed conduction in a solid oxide layer less than about 1000 nm thick; (c) modulating the electrical conductivity of oxide ion conducting layer less than about 1000 nm thick; (d) decreasing the conductivity of an oxide ion conducting layer less than about 1000 nm thick; (e) improving the performance of a solid oxide fuel cell; and (f) improving the performance of a gas separation device. In various embodiments, the methods comprise exposing oxygen to light having one or more wavelengths in the range between about 100 nm to about 365 nm and contacting the layer with the oxygen so exposed. In various embodiments, the methods provide the potential for tailoring the surface catalytic activity of oxygen-ion and mixed conductors used in various solid-state devices. | 10-07-2010 |
20100316918 | NANO-SCALE GAS SEPARATION DEVICE UTILIZING THIN FILM STRUCTURES FOR HYDROGEN PRODUCTION - In various aspects, provided are substantially single phase ceramic membranes, gas separation devices based thereon, and methods of making the membranes. In various embodiments, the membranes and devices can be used for hydrogen production, such as in a fuel-cell. | 12-16-2010 |
Annamalai Karthikeyan, Oshkosh, WI US
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20110017493 | Carbon Microbeads with Hierarchical Structure - The preset invention is a hierarchically-structured carbon microbead and method for forming the microbead utilizing hydrothermal carbonization of a biomass/catalyst mixture to produce partially carbonized amorphous microspheres, wherein the biomass is an inexpensive material containing a high oxygen content component (e.g., sugar, starch, alcohol), and the catalyst is a metal or metal-containing compound, preferably a transition metal compound, and more specifically a transition metal selected from Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, and Pt. Subsequently, a heat treatment is performed where the amorphous microspheres are heated to a temperature that is sufficiently high so as to result in carbonization, graphitization, and production of a carbonaceous coating or shell on the core of the microbead. | 01-27-2011 |
20110157771 | Electrical Energy Storage Device Containing an Electroactive Separator - An electrical energy storage device includes a first electrode; a second electrode; a separator; and an electrolyte; where the separator is an electronic insulator; the separator is positioned between the first and second electrodes; the separator includes a first surface proximal to the first electrode and a second surface proximal to the second electrode; the separator is configured to support an electric double layer at the first surface, the second surface, or at both the first surface and the second surface; and the device is an electrical energy storage device. | 06-30-2011 |
20110297420 | High Performance Redox Capacitors Using Materials Possessing Non-Stoichiometry and Defect Chemical Equilibrium - A pseudocapacitor employs plates having an active material of a nanoparticles sized ceramic mixed ionic-electronic conductor such as may have the nominal formula of ABO | 12-08-2011 |
20140161709 | Rapid, Non-Pyrolytic Method of Making Activated Carbon - High-speed formation of char, useful as a precursor to activated carbon, is produced by a combination of cellulosic material and an acid solution both preheated dose to the steam temperature and then mixed. The rapid endothermic reaction rapidly chars the cellulosic material driving excess water away as steam and minimizing tar formation. | 06-12-2014 |
Arvind S. Karthikeyan, Temple, TX US
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20150304456 | METHOD AND SYSTEM FOR THE MANUFACTURE AND CREATION OF SURFACING MATERIALS - A system for the manufacture and creation of surfacing materials includes a central server maintaining operational software facilitating various functionalities. The central server functions in accordance with a client-server model where the central server coordinates provision of services and requests. The system also includes a design database linked to the central server, a manufacturing facility linked to the central server, a company website linked to the central server, design tools linked to the central server, input tools linked to the central server, and output tools linked to the central server. | 10-22-2015 |
Deepak Karthikeyan, Foster City, CA US
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20100086854 | FLUORINE DOPED LITHIUM RICH METAL OXIDE POSITIVE ELECTRODE BATTERY MATERIALS WITH HIGH SPECIFIC CAPACITY AND CORRESPONDING BATTERIES - Lithium rich metal oxyfluorides are described with high specific capacity and, good cycling properties. The materials have particularly good high rate capabilities. The fluorine dopant can be introduced in a low temperature process to yield the materials with desirable cycling properties. In some embodiments, the positive electrode active materials have a composition represented approximately by the formula Li | 04-08-2010 |
Deepak Kumaar Karthikeyan, San Mateo, CA US
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20100151332 | POSITIVE ELECTRODE MATERIALS FOR HIGH DISCHARGE CAPACITY LITHIUM ION BATTERIES - Positive electrode active materials are described that have a high tap density and high specific discharge capacity upon cycling at room temperature and at a moderate discharge rate. Some materials of interest have the formula Li | 06-17-2010 |
Deepak Kumaar Karthikeyan, Newark, CA US
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20130216701 | POSITIVE ELECTRODE MATERIALS FOR HIGH DISCHARGE CAPACITY LITHIUM ION BATTERIES - Positive electrode active materials are described that have a high tap density and high specific discharge capacity upon cycling at room temperature and at a moderate discharge rate. Some materials of interest have the formula Li | 08-22-2013 |
Deepak Kumaar Karthikeyan, Foster City, CA US
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20140050972 | LITHIUM ION BATTERIES WITH HIGH ENERGY DENSITY, EXCELLENT CYCLING CAPABILITY AND LOW INTERNAL IMPEDANCE - Batteries with particularly high energy capacity and low internal impedance have been described herein. The batteries can exhibit extraordinary long cycling with acceptable low amounts of fade. Pouch batteries using high specific capacity lithium rich metal oxide as positive electrode material combined with graphitic carbon anode can reach an energy density of at least about 180 Wh/kg at a rate of C/3 from 4.35V to 2V at room temperature while having a room temperature areas specific DC resistance of no more than about 75 ohms-cm | 02-20-2014 |
Deepak Kumaar Kandasamy Karthikeyan, Newark, CA US
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20130216900 | LAYER-LAYER LITHIUM RICH COMPLEX METAL OXIDES WITH HIGH SPECIFIC CAPACITY AND EXCELLENT CYCLING - Lithium rich and manganese rich lithium metal oxides are described that provide for excellent performance in lithium-based batteries. The specific compositions can be engineered within a specified range of compositions to provide desired performance characteristics. Selected compositions can provide high values of specific capacity with a reasonably high average voltage. Compositions of particular interest can be represented by the formula, x Li | 08-22-2013 |
20140234716 | LAYER-LAYER LITHIUM RICH COMPLEX METAL OXIDES WITH HIGH SPECIFIC CAPACITY AND EXCELLENT CYCLING - Lithium rich and manganese rich lithium metal oxides are described that provide for excellent performance in lithium-based batteries. The specific compositions can be engineered within a specified range of compositions to provide desired performance characteristics. Selected compositions can provide high values of specific capacity with a reasonably high average voltage. Compositions of particular interest can be represented by the formula, x Li | 08-21-2014 |
Deepak Kumaar Kandasamy Karthikeyan, Foster City, CA US
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20110052981 | LAYER-LAYER LITHIUM RICH COMPLEX METAL OXIDES WITH HIGH SPECIFIC CAPACITY AND EXCELLENT CYCLING - Lithium rich and manganese rich lithium metal oxides are described that provide for excellent performance in lithium-based batteries. The specific compositions can be engineered within a specified range of compositions to provide desired performance characteristics. Selected compositions can provide high values of specific capacity with a reasonably high average voltage. Compositions of particular interest can be represented by the formula, xLi | 03-03-2011 |
20110052989 | LITHIUM DOPED CATHODE MATERIAL - Lithium dopant is introduced into lithium rich high capacity positive electrode active materials as a substitution for manganese within the complex metal oxides. In some embodiments, the lithium doped compositions can be written in a two component notation as x.Li | 03-03-2011 |
20110076556 | METAL OXIDE COATED POSITIVE ELECTRODE MATERIALS FOR LITHIUM-BASED BATTERIES - Positive electrode active materials are formed with various metal oxide coatings. Excellent results have been obtained with the coatings on lithium rich metal oxide active materials. Surprisingly improved results are obtained with metal oxide coatings with lower amounts of coating material. High specific capacity results are obtained even at higher discharge rates. | 03-31-2011 |
20110111298 | COATED POSITIVE ELECTRODE MATERIALS FOR LITHIUM ION BATTERIES - High specific capacity lithium rich lithium metal oxide materials are coated with inorganic compositions, such as metal fluorides, to improve the performance of the materials as a positive electrode active material. The resulting coated material can exhibit an increased specific capacity, and the material can also exhibit improved cycling. The materials can be formed while maintaining a desired relatively high average voltage such that the materials are suitable for the formation of commercial batteries. Suitable processes are described for the synthesis of the desired coated compositions that can be adapted for commercial production. | 05-12-2011 |
20110244331 | DOPED POSITIVE ELECTRODE ACTIVE MATERIALS AND LITHIUM ION SECONDARY BATTERY CONSTRUCTED THEREFROM - Positive electrode active materials comprising a dopant in an amount of 0.1 to 10 mole percent of Mg, Ca, Sr, Ba, Zn, Cd or a combination thereof are described that have high specific discharge capacity upon cycling at room temperature and at a moderate discharge rate. Some materials of interest have the formula Li | 10-06-2011 |
20120070725 | METAL HALIDE COATINGS ON LITHIUM ION BATTERY POSITIVE ELECTRODE MATERIALS AND CORRESPONDING BATTERIES - Lithium ion battery positive electrode material are described that comprise an active composition comprising lithium metal oxide coated with an inorganic coating composition wherein the coating composition comprises a metal chloride, metal bromide, metal iodide, or combinations thereof. Desirable performance is observed for these coated materials. In particular, the non-fluoride metal halide coatings are useful for stabilizing lithium rich metal oxides. | 03-22-2012 |
Jeganathan Karthikeyan, Akron, OH US
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20100136242 | Spray nozzle assembly for gas dynamic cold spray and method of coating a substrate with a high temperature coating - The invention relates to an improved design for a spray gun and application system for cold gas dynamic spraying of a metal, alloy, polymer, or mechanical mixtures thereof. The gun includes a rear housing comprising a powder inlet and a gas inlet, a front housing removably affixed to the rear housing and comprising an mixing cavity therein for mixing of the powder and gas and an exit therefrom, a nozzle holder having a bore disposed therethrough and removably affixed to the front housing, and a polymeric nozzle positioned within the nozzle holder, an interior taper of the nozzle holder bore complementing an exterior taper of the nozzle. The nozzle having an initially converging, subsequently diverging centrally disposed bore therein adapted to receive the mixed powder and gas from the mixing chamber and the nozzle holder including a cooling jacket which is thermally coupled to the nozzle adjacent the nozzle inlet and mechanically coupled downstream of the nozzle inlet. | 06-03-2010 |
20120193450 | SPRAY NOZZLE ASSEMBLY FOR GAS DYNAMIC COLD SPRAY AND METHOD OF COATING A SUBSTRATE WITH A HIGH TEMPERATURE COATING - The invention relates to an improved design for a spray gun and application system for cold gas dynamic spraying. The gun includes a rear housing comprising a powder inlet and a gas inlet, a front housing removably affixed to the rear housing and comprising an mixing cavity therein for mixing of the powder and gas and an exit therefrom, a nozzle holder having a bore disposed therethrough and removably affixed to the front housing, and a polymeric nozzle positioned within the nozzle holder, an interior taper of the nozzle holder bore complementing an exterior taper of the nozzle. The nozzle having an initially converging, subsequently diverging centrally disposed bore therein adapted to receive the mixed powder and gas from the mixing chamber and the nozzle holder including a cooling jacket which is thermally coupled to the nozzle adjacent the nozzle inlet and mechanically coupled downstream of the nozzle inlet. | 08-02-2012 |
Krishnan Karthikeyan, Federal Way, WA US
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20140195783 | DOT PRODUCT PROCESSORS, METHODS, SYSTEMS, AND INSTRUCTIONS - A method of an aspect includes receiving a dot product instruction. The dot product instruction indicates a first source packed data including at least four data elements, indicates a second source packed data including at least eight data elements, and indicates a destination storage location. A result packed data is stored in the destination storage location in response to the dot product instruction. The result includes a plurality of data elements that each includes a dot product result. Each of the dot product results includes a sum of products of the at least four data elements of the first source packed data with corresponding data elements in a different subset of at least four data elements of the second source packed data. Other methods, apparatus, systems, and instructions are disclosed. | 07-10-2014 |
Manju Karthikeyan, Salt Lake City, UT US
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20160058065 | FOOD PREPARATION DEVICES, SYSTEMS, AND METHODS - A food preparation device is disclosed. The food preparation device can include an ingredient combining apparatus to introduce a fluid food ingredient and a solid food ingredient to one another within a package. The food preparation device can also include a mixing apparatus to mix the fluid food ingredient and the solid food ingredient to form a food mixture in the package. In addition, the food preparation device can include a forming apparatus to form the food mixture into a predetermined shape within the package. | 03-03-2016 |
Muthukumaraamy Karthikeyan, Fishkill, NY US
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20130299828 | VIA CHAINS FOR DEFECT LOCALIZATION - Via chain and serpentine/comb test structures are in kerf areas of a wafer. The via chain test structures comprise a first via chain and a second via chain in a first kerf area. The via chain test structures are formed such that geometrically shaped portions of the first via chain and geometrically shaped portions of the second via chain alternate along the length of the first kerf area. | 11-14-2013 |
Muthukumarasamy Karthikeyan, Fishkill, NY US
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20090129185 | SEMICONDUCTOR CIRCUITS CAPABLE OF SELF DETECTING DEFECTS - A digital circuit and a method for operating the same. The digital circuit includes (a) M×N regular cells electrically arranged in M rows and N columns, (b) N reference cells corresponding one-to-one to the N columns, and (c) N comparing circuits corresponding one-to-one to the N columns. Each regular cell is electrically coupled to a comparing circuit. Each reference cell is electrically coupled to the associated comparing circuit. Each regular cell includes a first tap node. Each reference cell includes P tap nodes. If a first voltage of the first tap node of a regular cell is between two voltages of two tap nodes of the P tap nodes of the associated reference cell, then the associated comparing circuit is capable of generating a first signal. If the first voltage is not between the two voltages, then the associated comparing circuit is capable of generating a second signal. | 05-21-2009 |
20090143999 | REAL TIME SYSTEM FOR MONITORING THE COMMONALITY, SENSITIVITY, AND REPEATABILITY OF TEST PROBES - A system and a method for effectively determining the measurement sensitivity, repeatability, and probe commonality to assist a test engineer determine if the tester meets the specified resolution at every test. A statistical measurement of inherent tester specifications are provided with the added accumulation of the probe contact resistance during the probing process. It further provides a feedback to the test probe card noise level while testing is in progress. Moreover, the system and the method determine the test probing integrity in-situ when testing integrated circuit chips or wafers, dynamically detecting probing errors, and modifying data associated with defective test probes. | 06-04-2009 |
20120146682 | YIELD ENHANCEMENT FOR STACKED CHIPS THROUGH ROTATIONALLY-CONNECTING-INTERPOSER - A set of first substrate and second substrate are manufactured with a built-in N-fold rotational symmetry around the center axis of each substrate, wherein N is an integer greater than 1. A set of N different interposers is provided such that an i-th interposer provides electrical connection between the first substrate and the second substrate with a rotational angle of (i−1)/N×2π. The first and second substrates are tested with each of the N different interposers therebetween. Once the rotational angle that provides the highest stacked chip yield is determined, the first and the second substrates can be bonded with an azimuthal rotation that provides the highest stacked chip yield. | 06-14-2012 |
20130082257 | VIA CHAINS FOR DEFECT LOCALIZATION - Method form via chain and serpentine/comb test structures in kerf areas of a wafer. The via chain test structures comprise a first via chain and a second via chain in a first kerf area. The via chain test structures are formed such that geometrically shaped portions of the first via chain and geometrically shaped portions of the second via chain alternate along the length of the first kerf area. The methods perform relatively low (first) magnification testing to identify a defective geometrically shaped portion that contains a defective via structure. The methods then perform relatively high (second) magnification testing only within the defective geometrically shaped portion. The first magnification testing is performed at a lower magnification relative to the second magnification testing. | 04-04-2013 |
Muthukumarasamy Karthikeyan, Hopewell Junction, NY US
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20110080189 | YIELD ENHANCEMENT FOR STACKED CHIPS THROUGH ROTATIONALLY-CONNECTING-INTERPOSER - A set of first substrate and second substrate are manufactured with a built-in N-fold rotational symmetry around the center axis of each substrate, wherein N is an integer greater than 1. A set of N different interposers is provided such that an i-th interposer provides electrical connection between the first substrate and the second substrate with a rotational angle of (i−1)/N×2π. The first and second substrates are tested with each of the N different interposers therebetween. Once the rotational angle that provides the highest stacked chip yield is determined, the first and the second substrates can be bonded with an azimuthal rotation that provides the highest stacked chip yield. | 04-07-2011 |
Mythreye Karthikeyan, Durham, NC US
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20130089869 | Methods For and Uses of Mechanical Stiffness Profiling of Cancer Cells - Methods of predicting the invasiveness or metastatic potential of cancer cells are provided herein. Methods of screening for cancer cells or diagnosing cancer in a subject are also provided. Methods of screening for agents capable of reducing invasiveness or metastasis of cancer cells are also provided. All of the methods rely on analyzing the creep compliance or spring constant of cells. | 04-11-2013 |
Prithivi Karthikeyan, Morristown, NJ US
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20150176593 | TURBOCHARGER WITH LUBRICANT DEFLECTOR - A turbocharger assembly can include a center housing that includes a compressor side, a turbine side, a bore that extends between the compressor side and the turbine side and a socket at the compressor side; a journal bearing disposed in the bore; and a lubricant deflector disposed at least partially in the socket. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed. | 06-25-2015 |
Sundarraj Karthikeyan, San Diego, CA US
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20120016497 | Method and Apparatus for Programming a Decoder-based Irrigation Controller - A method and programming chart having viewable indicia thereon for programming a decoder-based controller is disclosed. The programming chart comprises a specific portion comprising a station number area for one or more stations being controlled by a decoder-based irrigation controller, a decoder address area adapted to receive an entry indicating an address of a decoder being associated with each of the one or more stations and a plurality of other information areas for each of the one or more stations to receive information pertaining to each of the one or more stations. Furthermore, a method is provided for programming a decoder-based irrigation controller comprising associating a decoder unit with at least a first station, removing a decoder address indicator provided with the decoder unit and recording the decoder address indicator onto a programming chart onto an area designated for a decoder address associated with the first station. | 01-19-2012 |
20150045973 | Method and Apparatus for Programming a Decoder-based Irrigation Controller - A method and decoder-based irrigation controller, and method and programming chart, are provided. In some embodiments, a decoder-based irrigation controller comprises a microcontroller; and a first connector coupled to the microcontroller and configured to couple to a reader, wherein the reader comprises an optical reader configured to read an optically readable pattern, wherein the first connector is further configured to couple an input from the reader to the microcontroller; and wherein the microcontroller is configured to interpret the input from the reader and perform an action at the decoder-based irrigation controller according to the input. | 02-12-2015 |