Patent application number | Description | Published |
20080287654 | PEPTIDE MEDIATED SYNTHESIS OF METALLIC AND MAGNETIC MATERIALS - The present invention includes methods for producing magnetic nanocrystals by using a biological molecule that has been modified to possess an amino acid oligomer that is capable of specific binding to a magnetic material. | 11-20-2008 |
20110197711 | PEPTIDE MEDIATED SYNTHESIS OF METALLIC AND MAGNETIC MATERIALS - The present invention includes methods for producing magnetic nanocrystals by using a biological molecule that has been modified to possess an amino acid oligomer that is capable of specific binding to a magnetic material. | 08-18-2011 |
20110298149 | INORGANIC NANOWIRES - An inorganic nanowire having an organic scaffold substantially removed from the inorganic nanowire, the inorganic nanowire consisting essentially of fused inorganic nanoparticles substantially free of the organic scaffold, and methods of making same. For example, a virus-based scaffold for the synthesis of single crystal ZnS, CdS and free-standing L10 CoPt and FePt nanowires can be used, with the means of modifying substrate specificity through standard biological methods. Peptides can be selected through an evolutionary screening process that exhibit control of composition, size, and phase during nanoparticle nucleation have been expressed on the highly ordered filamentous capsid of the M13 bacteriophage. The incorporation of specific, nucleating peptides into the generic scaffold of the M13 coat structure can provide a viable template for the directed synthesis of a variety of materials including semiconducting and magnetic materials. Removal of the viral template via annealing can promote oriented aggregation-based crystal growth, forming individual crystalline nanowires. The unique ability to interchange substrate specific peptides into the linear self-assembled filamentous construct of the M13 virus introduces a material tenability not seen in previous synthetic routes. Therefore, this system provides a genetic tool kit for growing and organizing nanowires from various materials including semiconducting and magnetic materials. | 12-08-2011 |
20120273987 | INORGANIC NANOWIRES - Provided in one embodiment is a method of forming an inorganic nanowire, comprising: providing an elongated organic scaffold; providing a plurality of inorganic nanoparticles attached to the organic scaffold along a length of the organic scaffold; and fusing the nanoparticles attached to the organic scaffold to form an inorganic nanowire. | 11-01-2012 |
20140212664 | INORGANIC NANOWIRES - Provided in one embodiment is a method of forming an inorganic nanowire, comprising: providing an elongated organic scaffold; providing a plurality of inorganic nanoparticles attached to the organic scaffold along a length of the organic scaffold; and fusing the nanoparticles attached to the organic scaffold to form an inorganic nanowire. | 07-31-2014 |
Patent application number | Description | Published |
20080206448 | Low Work Function Material - The present invention is directed toward methods for incorporating low work function metals and salts of such metals into carbon nanotubes for use as field emitting materials. The present invention is also directed toward field emission devices, and associated components, comprising treated carbon nanotubes that have, incorporated into them, low work function metals and/or metal salts, and methods for making same. The treatments of the carbon nanotubes with the low work function metals and/or metal salts serve to improve their field emission properties relative to untreated carbon nanotubes when employed as a cathode material in field emission devices. | 08-28-2008 |
20080206559 | LUBRICANT ENHANCED NANOCOMPOSITES - Strings configured for use in sports racquets and musical instruments are fabricated as a plastic core wrapped with one or more filaments of plastic. The strings are coated with a material composite that includes rigid nanoparticles, and lubricated nylon. The rigid nanoparticles may include clay or carbon nanotubes. The strings are coated with the material composite using various processes that result in a coating thickness of between 0.1 and 200 μm. The material composite may further include impact modifiers. The strings experience extended life due to reduced frictional wear and improved mechanical properties. | 08-28-2008 |
20080300357 | Carbon Nanotube-Reinforced Nanocomposites - A combination of MWNTs (herein, MWNTs have more than 2 walls) and DWNTs significantly improves the mechanical properties of polymer nanocomposites. A small amount of DWNTs reinforcement (<1 wt. %) significantly improves the flexural strength of epoxy matrix nanocomposites. A same or similar amount of MWNTs reinforcement significantly improves the flexural modulus (stiffness) of epoxy matrix nanocomposites. Both flexural strength and flexural modulus of the MWNTs and DWNTs-coreinforced epoxy nanocomposites are further improved compared with same amount of either DWNTs or MWNTs-reinforced epoxy nanocomposites. In this epoxy/DWNTs/MWNTs nanocomposite system, SWNTs may also work instead of DWNTs. Besides epoxy, other thermoset polymers may also work. | 12-04-2008 |
20090035570 | CARBON NANOTUBE-REINFORCED NANOCOMPOSITES - Carbon nanotubes (CNTs) are so long that they cannot be penetrated inbetween carbon fibers during a prepreg preparation process, and are shortened in order for them not to be filtered out by the carbon fibers. This results in a huge improvement of the mechanical properties (flexural strength and flexural modulus) compared with neat epoxy. | 02-05-2009 |
20090095704 | PATTERNING CNT EMITTERS - An industrial scale method for patterning nanoparticle emitters for use as cathodes in a display device is disclosed. The low temperature method can be practiced in high volume applications, with good uniformity of the resulting display device. The method steps involve deposition of CNT emitter material over an entire surface of a prefabricated composite structure, and subsequent removal of the CNT emitter material from unwanted portions of the surface using physical methods. | 04-16-2009 |
20100285212 | COMPOSITES - Improved mechanical properties of either clay or carbon nanotube (CNT)-reinforced polymer matrix nanocomposites are obtained by pre-treating nanoparticles and polymer pellets prior to a melt compounding process. The clay or CNTs are coated onto the surfaces of the polymer pellets by a milling process. The introduction of moisture into the mixture of the nanoparticles and the polymer pellets results in the nanoparticles more easily, firmly, and thoroughly coating onto the surfaces of the polymer pellets. | 11-11-2010 |
20110027603 | Enhancing Thermal Properties of Carbon Aluminum Composites - An article of manufacture comprises a carbon-containing matrix. The carbon-containing matrix may comprise at least one type of carbon material selected from the group comprising graphite crystalline carbon materials, carbon powder, and artificial graphite powder. In addition, the carbon-containing matrix comprises a plurality of pores. The article of manufacture also comprises a metal component comprising Al, alloys of Al, or combinations thereof. The metal component is disposed in at least a portion of the plurality of pores. Further, the article of manufacture comprises an additive comprising at least Si. At least a portion of the additive is disposed in an interface between the metal component within the pores and the carbon-containing matrix. The additive enhances phonon coupling and propagation at the interface. | 02-03-2011 |
20110160346 | DISPERSION OF CARBON NANOTUBES BY MICROFLUIDIC PROCESS - Improved mechanical properties of carbon nanotube (CNT)-reinforced polymer matrix nanocomposites are obtained by functionalizing the CNTs with a compound that bonds well to an epoxy matrix before dispersing the solution using a microfluidic process. Well-dispersed particles are obtained that sufficiently improve mechanical properties of the nanocomposites, such as flexural strength and modulus. The resulting composite material is used for coatings on marine vessels. | 06-30-2011 |
20120220695 | Carbon Nanotube Reinforced Nanocomposites - A combination of multi-walled carbon nanotubes and single-walled carbon nanotubes and/or double-walled carbon nanotubes significantly improves the mechanical properties of polymer nanocomposites. Both flexural strength and flexural modulus of the MWNTs and single-walled carbon nanotubes and/or double-walled carbon nanotubes co-reinforced epoxy nanocomposites are further improved compared with same amount of either single-walled carbon nanotubes and/or double-walled carbon nanotubes or multi-walled carbon nanotubes reinforced epoxy nanocomposites. Besides epoxy, other thermoset polymers may also work. | 08-30-2012 |
20120237767 | COMPOSITE COATING FOR STRINGS - A buffer layer is used to coat on the multi-filament wrapped string to fill the gaps. The polymers of the buffer-layer coating have a high melt-flow (low viscosity) during coating process to fill all the gaps between the filaments, and the filaments are fixed by the coatings onto base core materials. An outer protective coating is applied, which may comprise a composite nylon, clay nanoparticles, carbon nanotubes, an impact modifier, or any combination of the foregoing. | 09-20-2012 |
20120289112 | CARBON NANOTUBE REINFORCED ADHESIVE - Improved mechanical properties of carbon nanotube (CNT)-reinforced polymer adhesive matrix nanocomposites are obtained by functionalizing the CNTs with a compound that bonds well to an epoxy matrix. The particles sufficiently improve mechanical properties of the nanocomposites, such as flexural strength and modulus. | 11-15-2012 |
20130059947 | CARBON NANOTUBE-REINFORCED NANOCOMPOSITES - Carbon nanotubes (CNTs) are so long that they cannot be penetrated inbetween carbon fibers during a prepreg preparation process, and are shortened in order for them not to be filtered out by the carbon fibers. This results in a huge improvement of the mechanical properties (flexural strength and flexural modulus) compared with neat epoxy. | 03-07-2013 |
20130313963 | CARBON NANOTUBE FIELD EMISSION DEVICE WITH HEIGHT VARIATION CONTROL - A carbon nanotube layer for a field emission cathode where individual carbon nanotubes or small groups of carbon nanotubes that stick out from the surface more than the rest of the layer are avoided. Electron fields will concentrate on these sharp points, creating an enhanced image on the phosphor, resulting in a more luminous spot than the surroundings. Activation processes further free such carbon nanotubes or groups of carbon nanotubes sticking out from the surface, exasperating the problem. | 11-28-2013 |
20150045478 | Polymer Composites with Silicon Dioxide Particles - Silicon dioxide particles can reinforce the mechanical properties of an epoxy matrix. Combining carbon nanotubes with the icon dioxide particles to co-reinforce the epoxy matrix achieves increases in compression strength, flexural strength, compression modulus, and flexural modulus. Such composites have increased mechanical properties over that of neat epoxy. | 02-12-2015 |
Patent application number | Description | Published |
20140117962 | High Efficiency High Power Density Power Architecture Based on Buck-Boost Regulators with a Pass-Through Band - A power system comprising a non-isolated voltage regulator configured to couple to an input voltage and produce an output voltage, wherein the non-isolated voltage regulator is in a power distribution system and configured to boost the input voltage when the input voltage is less than a minimum output voltage, to reduce the input voltage when the input voltage is greater than a maximum output voltage, and to pass-through the input voltage when the input voltage is greater than or equal to the minimum output voltage and less than or equal to the maximum output voltage. | 05-01-2014 |
20140240052 | High Efficiency Power Amplifiers with Advanced Power Solutions - A device comprises a switch network having a plurality of switch cells connected in series, wherein each switch cell has a plurality of input voltages, and a plurality of switches, wherein each switch is coupled to an input voltage, and wherein the switch network is configured such that a different output voltage is produced in response to a different configuration, an output voltage with an output capacitance, and an impedance network coupled between the switch network and an output voltage port. | 08-28-2014 |
20140265994 | Dynamically Reconfigurable Motor and Generator Systems - An electrical machine comprises a rotor, and a stator magnetically coupled to the rotor and having a plurality of slots and a plurality of windings, wherein each winding is installed in a corresponding slot, a plurality of magnetic poles and a plurality of phases in each pair of poles are formed when currents flow through the windings, and the windings are so configured that the number of phases and the number of poles can be dynamically adjusted. | 09-18-2014 |
20140266546 | High Density Packaging for Efficient Power Processing with a Magnetic Part - A package comprises a substrate with a plurality of metal tracks, a via hole formed in the substrate, wherein the sidewall of the via hole is partially plated and the via hole is filled with a magnetic material, and a first winding magnetically coupled to the via hole. | 09-18-2014 |
Patent application number | Description | Published |
20120063173 | Common Mode Noise Reduction Apparatus and Method - An embodiment common mode noise reduction apparatus comprises a common mode choke, a balance inductor, a first capacitor and a second capacitor. The common mode choke is placed between an input dc source and a primary side network of an isolated power converter. The balance inductor is coupled between an upper terminal of a primary winding of the isolated power converter and a negative terminal of the input dc source. The first capacitor is coupled between the upper terminal of a primary side of a transformer and an upper terminal of a secondary side of the transformer of the isolated power converter. The second capacitor is coupled between a lower terminal of the primary side of the transformer and a lower terminal of the secondary side of the transformer of the isolated power converter. | 03-15-2012 |
20120147629 | Soft Switching DC/DC Converters and Methods - A soft switching apparatus comprises an energy recovery channel formed by two diodes in series connection and a resonant tank formed by an inductor and a capacitor. The soft switching apparatus is coupled to the primary side of a bridge converter. An energy transfer process during L-C resonance helps to reduce the amplitude of the current flowing through the inductor in a freewheeling period. Furthermore, the soft switching apparatus can help to reduce the voltage stress across the secondary switching devices as well as the shoot-through currents flowing through the secondary switching devices, and thus enabling the reduction or elimination of dead time in a secondary synchronous rectifier control scheme. | 06-14-2012 |
20120273932 | POWER SUPPLY MODULE AND PACKAGING AND INTEGRATING METHOD THEREOF - A power supply module and a packaging and integrating method thereof are provided. The power supply module includes a lead frame, a passive element, an integrated circuit (IC), and a power switch Metallic Oxide Semiconductor Field Effect Transistor (MOSFET). The passive element is soldered onto the lead frame by using the surface mount technology. The IC is a flip chip and is mounted and soldered onto the lead frame. | 11-01-2012 |
20120313595 | Power Converter Package Structure and Method - An embodiment power converter package comprises a semiconductor die, an output inductor, a plurality of input capacitors and output capacitors. The semiconductor die, the output inductor and the plurality of capacitors are mounted on a lead frame and connected one to another through various pads on the lead frame. The semiconductor die comprises a high side switch, a low side switch and a driver. The power converter package is electrically coupled to an external pulse width modulation controller through a variety of input and output pads. | 12-13-2012 |
20130033786 | High Efficiency Power Regulator and Method - An embodiment high efficiency power regulator comprises a three-terminal converter and a protection device. The three-terminal converter comprises a first terminal coupled to a positive terminal of an input voltage bus, a second terminal coupled to a positive terminal of an output voltage bus and a third terminal coupled to the protection device. The protection device comprises an inrush current limiting element connected in series with a reverse polarity protection device. | 02-07-2013 |
20130050879 | High Efficiency Bridgeless PFC Converter and Method - An embodiment bridgeless power factor correction circuit comprises a first boost converter and a second boost converter connected in parallel. A first switch is coupled between the input of the first boost converter and ground. A second switch is coupled between the input of the second boost converter and ground. Both the first switch and the second switch help to reduce the common mode noise of the bridgeless power factor correction circuit. The bridgeless power factor correction circuit further comprises two surge protection diodes coupled between the inputs of two boost converters and the output of the bridgeless power factor correction circuit. | 02-28-2013 |
20130063982 | Soft Transition Apparatus and Method for Switching Power Converters - An embodiment apparatus comprises a secondary synchronous rectifier and a secondary gate drive controller. The secondary gate drive controller coupled to a transformer winding comprises a secondary synchronous rectifier soft start signal generator configured to generate a plurality of soft start pulses, a pulse width modulation generator configured to generate a forward switch drive signal and a freewheeling switch drive signal based upon a signal across the transformer winding and a soft transition generator configured to generate a soft start freewheeling switch drive signal by gradually releasing the freewheeling switch drive signal during a soft start process. | 03-14-2013 |
20130063985 | Adaptive Dead Time Control Apparatus and Method for Switching Power Converters - An embodiment apparatus comprises a secondary synchronous rectifier and a secondary gate drive controller coupled to a transformer winding. The secondary gate drive controller is configured to generate a forward gate drive signal for the forward switch and generate a freewheeling gate drive signal for the freewheeling switch, wherein the secondary gate drive controller generates a dead time between the forward gate drive signal and the freewheeling gate drive signal. | 03-14-2013 |
20130135903 | Hybrid DC/DC Converters and Methods - An embodiment hybrid dc/dc converter comprises a first power source and a low power converter coupled to the first power source. The low power converter generates an output connected in series with the first power source. The hybrid dc/dc converter further comprises a selection network coupled to the first power source and the output of the low power converter and a main unregulated power converter coupled to the selection network. By controlling the voltage across the output of the low power converter, the hybrid dc/dc converter can achieve high efficiency through the unregulated power converter. | 05-30-2013 |
20130147543 | Apparatus and Method for Fractional Charge Pumps - An embodiment apparatus comprises a plurality of flying capacitors coupled between a dc input power source and an output capacitor and switching circuitry coupled to the plurality of flying capacitors. The switching circuitry is configured such that in a first operational phase, the dc input power source and the plurality of flying capacitors in a first capacitor configuration are stacked together and further coupled to the output capacitor and in a second operational phase, the plurality of flying capacitors in a second capacitor configuration are coupled between ground and the output capacitor. | 06-13-2013 |
20130234785 | Apparatus and Method for Feedforward Controlled Charge Pumps - An embodiment apparatus comprises a switched capacitor network coupled between an input voltage and an output capacitor and a feedforward controller. The switched capacitor network comprises a plurality of flying capacitors and a switching circuit. The feedforward controller comprises a sensor configured to detect the input voltage and a mode selector configured to generate a plurality of gate drive signals for the switched capacitor network. The gate drive signals configure the switched capacitor network to form a charge pump with a non-integer multiplication factor. | 09-12-2013 |
20130265804 | Apparatus for Resonant Converters - A converter comprises a bridge and a resonant tank coupled between the bridge and an isolation transformer. The converter is configured such that the converter operates at a first constant-gain resonant frequency during a normal operation condition wherein a voltage gain of the converter is essentially insensitive to an output load change and the converter operates at a minimum-gain damping frequency during an abnormal operation condition wherein a voltage gain of the converter is approximately equal to zero. | 10-10-2013 |
20130318366 | DUAL FREQUENCY CONTROL OF BUCK-BOOST REGULATOR WITH A PASS THROUGH BAND - Dual frequency control of first and second pairs of switches of a buck-boost regulator with pass through band is disclosed. In buck and boost modes respectively a first pair of the switches is operated at high frequency and a second pair of the switches is operated at low frequency. In pass through mode, both pairs of switches are operated at low frequency. Dual frequency control and operation of the pairs of switches enables current sharing between positive and negative power leads in buck, boost and pass-through modes. | 11-28-2013 |
20140035552 | Apparatus for PWM Gate Drive Circuit - A converter comprises a high side switch, a low side switch connected in series with the high switch, a gate drive circuit comprising a first drive port coupled to a gate of the high side switch, a second drive port coupled to a gate of the low side switch, an SRE input port and
| 02-06-2014 |
20140198536 | Resonant Converters and Methods - A multilevel LLC resonant converter comprises a resonant tank connected in series with a primary side of a transformer, a first switch and a second switch connected in series, wherein a common node of the first switch and the second switch is coupled to a mid-voltage point through a first isolation switch and the resonant bank and a third switch and a fourth switch connected in series, wherein a common node of the third switch and the fourth switch is coupled to the resonant tank. | 07-17-2014 |
20140254208 | Auxiliary Resonant Apparatus for LLC Converters - A resonant tank comprises a series resonant inductor coupled to a switching network and a transformer, a series resonant capacitor coupled to the switching network and the transformer, a first parallel inductor implemented as a magnetizing inductance of the transformer, a second parallel inductor implement as a separate inductor, wherein a first inductance of the first parallel inductor is greater than a second inductance of the second parallel inductor and a switch connected in series with the second parallel inductor. | 09-11-2014 |
Patent application number | Description | Published |
20110236024 | METHOD AND APPARATUS FOR PICOCELL DISTRIBUTED RADIO HEADS PROVIDING MACROCELL CAPABILITIES - In one embodiment, a system for telecommunications includes a base band unit, a backhaul network, a shared network, a cascaded chain of remote radio heads, and an optical node coupled to the cascaded chain of remote radio heads. The backhaul network is coupled to the base band unit and to the shared network. The cascaded chain includes a first remote radio head coupled to a first set of antennas, a second remote radio head coupled to a second set of antennas. The second remote radio head is coupled to the first remote radio head through the shared network. The cascaded chain of remote radio heads is coupled to the shared network. The second remote radio head is configured to receive signals from the second set of antennas and communicate the signals to the first remote radio head. The first remote radio head is configured to receive signals from the first set of antennas, receive signals from the from the second remote radio head, and transmit the signals to the base band unit. The base band unit, the first remote radio head, and the second remote radio head communicate through a digital radio interface. The optical node is configured to communicate signals between the backhaul network and data subscribers accessing the shared network. | 09-29-2011 |
20110237178 | METHOD AND SYSTEM FOR CPRI CASCADING IN DISTRIBUTED RADIO HEAD ARCHITECTURES - A method of communicating between a base band unit and a plurality of remote radio heads includes the steps of receiving a first signal through an antenna in a first remote radio head, transmitting the first signal to a second remote radio head through a digital radio interface, receiving a second signal through an antenna in the second remote radio head, compensating for a delay accrued in the first signal, adding the first signal and the second signal to obtain a resulting signal, and transmitting the resulting signal to a base band unit through a digital radio interface. | 09-29-2011 |
Patent application number | Description | Published |
20090060314 | LOCKBOX IMAGING SYSTEM - A system and method for imaging and capturing information from checks and documents contained in a lockbox remittance. A computer workstation is used to generate and print a header sheet that includes information identifying the check. The header sheet is appended to the front of the documents and the document are imaged using a scanner. Identifying information from each of the documents is used to create a data record for each document. In parallel to the scanning of the documents, the checks are scanned and images are created for each of the checks. Additionally, identifying information from each of the checks (e.g., the check number, the amount, etc.) is manually input into a database, thus creating a data record for each check. Once all of the data entry and scanning has been completed, an automatic association process takes place in which the check data records, the check images, the document data records and the document images are all automatically associated and cross-referenced such that the system recreates an electronic version of the original batch of physical papers. All of the associated data and images are contained in a database, from which all of the information for a lockbox customer can be electronically retrieved over the Internet. | 03-05-2009 |
20100128324 | LOCKBOX IMAGING SYSTEM - A system and method for imaging and capturing information from checks and documents contained in a lockbox remittance. A computer workstation is used to generate and print a header sheet that includes information identifying the check. The header sheet is appended to the front of the documents and the document are imaged using a scanner. Identifying information from each of the documents is used to create a data record for each document. In parallel to the scanning of the documents, the checks are scanned and images are created for each of the checks. Additionally, identifying information from each of the checks (e.g., the check number, the amount, etc.) is manually input into a database, thus creating a data record for each check. Once all of the data entry and scanning has been completed, an automatic association process takes place in which the check data records, the check images, the document data records and the document images are all automatically associated and cross-referenced such that the system recreates an electronic version of the original batch of physical papers. All of the associated data and images are contained in a database, from which all of the information for a lockbox customer can be electronically retrieved over the Internet. | 05-27-2010 |
Patent application number | Description | Published |
20090131475 | COMPOSITIONS AND METHODS FOR THE TREATMENT OF METABOLIC DISORDERS - The present invention relates to treatment and/or prevention of one or more metabolic disorders utilizing fatostatin A and/or a derivative and/or analog thereof. In other aspects, the compound for treatment and/or prevention of one or more metabolic disorders utilizes an A-B—C tripartite structure, wherein A, B, and C are identical or non-identical structures and are described in detail herein. In specific aspects, the metabolic disorder includes obesity or diabetes, for example. | 05-21-2009 |
20130005768 | COMPOSITIONS AND METHODS FOR THE TREATMENT OF METABOLIC DISORDERS - The present invention relates to treatment and/or prevention of one or more metabolic disorders utilizing fatostatin A and/or a derivative and/or analog thereof. In other aspects, the compound for treatment and/or prevention of one or more metabolic disorders utilizes an A-B-C tripartite structure, wherein A, B, and C are identical or non-identical structures and are described in detail herein. In specific aspects, the metabolic disorder includes obesity or diabetes, for example. | 01-03-2013 |
20130012538 | COMPOSITIONS AND METHODS FOR THE TREATMENT OF METABOLIC DISORDERS - The present invention relates to treatment and/or prevention of one or more metabolic disorders utilizing fatostatin A and/or a derivative and/or analog thereof. In other aspects, the compound for treatment and/or prevention of one or more metabolic disorders utilizes an A-B-C tripartite structure, wherein A, B, and C are identical or non-identical structures and are described in detail herein. In specific aspects, the metabolic disorder includes obesity or diabetes, for example. | 01-10-2013 |