Hwang, MI
Byung K. Hwang, Midland, MI US
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20140220347 | ELECTRODE COMPOSITION COMPRISING A SILICON POWDER AND METHOD OF CONTROLLING THE CRYSTALLINITY OF A SILICON POWDER - An electrode composition comprises a silicon powder comprising non-crystalline and crystalline silicon, where the crystalline silicon is present in the silicon powder at a concentration of no more than about 20 wt. %. An electrode for an electrochemical cell comprises an electrochemically active material comprising non-crystalline silicon and crystalline silicon, where the non-crystalline silicon and the crystalline silicon are present prior to cycling of the electrode. A method of controlling the crystallinity of a silicon powder includes heating a reactor to a temperature of no more than 650° C. and flowing a feed gas comprising silane and a carrier gas into the reactor while maintaining an internal reactor pressure of about 2 atm or less. The silane decomposes to form a silicon powder having a controlled crystallinity and comprising non-crystalline silicon. | 08-07-2014 |
Byung Keun Hwang, Midland, MI US
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20090032901 | Method of curing hydrogen silsesquioxane and densification in nano-scale trenches - Trenches in a semiconductor substrate are filled by (i) dispensing a film forming material on the semiconductor substrate and into the trenches; (ii) curing the dispensed film forming material in the presence of an oxidant at a first low temperature for a first predetermined period of time; (iii) curing the dispensed film forming material in the presence of an oxidant at a second low temperature for a second predetermined period of time; (iv) curing the dispensed film forming material in the presence of an oxidant at a third high temperature for a third predetermined period of time; and (v) forming filled oxide trenches in the semiconductor substrate. The film forming material is hydrogen silsesquioxane. | 02-05-2009 |
20110155956 | Fibers Including Nanoparticles And A Method Of Producing The Nanoparticles - A method produces nanoparticles by electrospinning a silicon composition having at least one silicon atom. The electrospinning of the silicon composition forms fibers. The fibers are pyrolyzed to produce the nanoparticles. The nanoparticles have excellent photo-luminescent properties and are suitable for use in many different applications. | 06-30-2011 |
Jeongung Hwang, Northville, MI US
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20110241521 | SPARK PLUG ELECTRODE AND METHOD OF MANUFACTURE - A spark plug for an internal combustion engine includes a housing having a distal end, a proximal end, and an outer periphery extending therebetween. A mounting thread formed on the outer periphery at the proximal end of the housing secures the spark plug to the engine. A center electrode fixedly secured along a central axis of the housing has a first end extending outwardly from the proximal end of the housing. A ground electrode secured to the proximal end of the housing has an electrode tip at a first distance from the center electrode. The electrode tip has a central aperture extending through the ground electrode from an upper surface to a lower surface. A protruding edge circumscribes the aperture and extends a second distance from the upper surface of the electrode tip towards the center electrode. | 10-06-2011 |
20120242215 | COPPER CORE COMBUSTION CUP FOR PRE-CHAMBER SPARK PLUG - A spark plug for an internal combustion engine includes a spark plug housing. An insulator is concentrically located within the housing and has a distal end extending from an outer surface of the housing. A center electrode extends from a proximal end of the insulator. A ground electrode is secured to the housing and has an electrode tip arranged a distance from the center electrode. A chamber cap fixedly secured to the housing and surrounding both the center and ground electrodes, includes a laminate shell and a plurality of orifices. | 09-27-2012 |
20120248964 | PRE-CHAMBER SPARK PLUG INCLUDING A GAS THREAD CAVITY - A spark plug includes a housing, a center electrode, a ground electrode, and a pre-chamber cup. The housing is configured to thread into a spark-plug hole in an engine. The center electrode extends axially from a center of the housing. The ground electrode extends radially inward from the housing. The pre-chamber cup is attached to the housing. The housing defines a gas thread cavity that extends radially at least partially through the housing. | 10-04-2012 |
20130298887 | Ignition Coil Captured Resistor - A motor vehicle ignition assembly. The assembly includes a high voltage tower, a retention clip coupled to the high voltage tower, and a resistor mounted within the retention clip. | 11-14-2013 |
Jiann-Yang Hwang, Chassell, MI US
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20100075830 | Activated carbon separation and reuse - A method of treating spent sorbent from power plants containing materials including mercury absorbed from emission gases comprising putting said spent sorbent in an atmosphere isolated container or furnace chamber and heating said sorbent by microwave, radio frequency and/or infrared irradiation. The sorbent is heated to a temperature of at least the boiling point of the major contaminant, including mercury. No air or purge gas is added except to maintain safe pressure conditions, to control combustion of the sorbent and increase efficiency. The resulting vapor is released through an exhaust port of the chamber that leads to a condenser where mercury is condensed and separated. Other residual vapors are led to a scrubber for further cleansing and may be returned to the power plant for other applications. The hot treated sorbent is cooled down prior to contacting with air for later reuse in the power plant. | 03-25-2010 |
20110257295 | METHOD FOR COATING MINERAL GRANULES TO IMPROVE BONDING TO HYDROCARBON-BASED SUBSTRATE AND COLORING OF SAME - Provided are compositions comprising stamp sand granules embedded in asphalt, where the stamp sand granules comprise a silane coating. Additionally provided are methods of making a silane-coated stamp sand, the methods comprising combining stamp sand granules and a silane solution to form a mixture and drying the mixture. Additionally provided are methods of covering a surface, the methods comprising combining silane-coated particles and asphalt to provide a mixture and distributing the mixture on the surface. | 10-20-2011 |
20120031232 | Method and Apparatus For Coproduction of Pig Iron and High Quality Syngas - Combined microwave heating and plasma/electric arc heating is utilized in several processes and apparatus which involve co-production of pig iron and high quality syngas, biomass to liquid fuel production, coal to liquid fuel production, co-gasification of biomass and coal, municipal solid waste treatment, waste-to-energy (agriculture waste, ASR and PEF), EAF dust and BOF sludge treatment to recover zinc and iron, hazardous bottom ash vitrification, and bromine, chlorine and sulfur removal/recycling. | 02-09-2012 |
Joon Hwang, Sterling Heights, MI US
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20150364936 | SYSTEMS AND METHODS FOR ESTIMATING BATTERY PACK CAPACITY DURING CHARGE SUSTAINING USE - System and methods for estimating a capacity of a battery are presented. In certain embodiments, charge and discharge current throughput data may be separately accumulated during operation of a battery system (e.g., during a charge sustaining operation of vehicle associated with the battery system). Charge and discharge voltage-based state of charge movement data may be further separately accumulated. Upon accumulating sufficient data, estimated charge and discharge battery capacities may be determined based on the accumulated data. | 12-17-2015 |
Kyoungpil Hwang, Ann Arbor, MI US
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20090036265 | HYDRAULIC OVER/UNDERSHOOT PROTECTION FOR TRANSMISSION CLUTCH CONTROL - A vehicle automatic speed change power transmission control includes a control arrangement with overshoot/undershoot protection logic. The control is used with an electro-hydraulic pressure control module featuring a linear solenoid, and which supplies a hydraulically-actuated clutch configured to effect gear changes. The overshoot/undershoot protection logic is configured to detect when a commanded increase/decrease clutch pressure satisfies a clutch pressure threshold and to then activate the protection logic. Once the protection logic is activated, large command pressures increases/decreases are implemented in a series of stages having variable gains. The first stage has an aggressive gain and achieves 50-80% of the commanded clutch pressure. The second stage has a reduced gain and achieves 90% of the commanded clutch pressure. The third stage has a still further reduced gain and achieves about 100% of the commanded clutch pressure. | 02-05-2009 |
20090183777 | SYSTEM AND METHOD FOR DYNAMIC SOLENOID RESPONSE ADJUST CONTROL - A method is described for controlling a solenoid-operated fluid valve having an output hydraulic pressure that varies in accordance with an input solenoid control current delivered from a drive circuit. A model is provided characterizing the plant dynamics of the solenoid-operated fluid valve and the drive circuit where the model is dependent on at least one operating parameter. The method, during operation, involves measuring the value of the operating parameter and adjusting based on the measured operating parameter value one or more gain constants to be used in a selected control strategy. The model is used in adjusting the gains. Finally, the method involves determining a required solenoid control current according to the control strategy with the now dynamically-adjusted gain constants. The control strategy may be a PI control strategy. The model-based system allows easy migration of the general control strategy to different hardware configurations by developing target system specific data for the model. | 07-23-2009 |
Moon Ho Hwang, Auburn Hills, MI US
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20140156329 | Canonical Availability Representations For Bills Of Materials - A computer-implemented method for validating a bill of material (BOM) structure having a plurality of nodes includes creating a directed acyclic graph of a process based on the BOM, wherein the directed acyclic graph includes the BOM structure and a process network, determining a status of at least one process in the process network, and comparing the status of the process to an associated node. | 06-05-2014 |
Sangyeul Hwang, Ann Arbor, MI US
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20080226686 | GENERATION OF NITRIC OXIDE IN SITU AT SUBSTRATE/BLOOD INTERFACES AND REPRODUCIBLE NITRIC OXIDE SENSOR FOR DETECTING NITROSOTHIOLS - A material includes a surface and a reactive agent that is located at the surface of the material, covalently attached to a backbone of the material, and/or located within the material. The reactive agent has nitrite reductase activity, nitrate reductase activity, and/or nitrosothiol reductase activity. The reactive agent also converts at least one of nitrites, nitrates and nitrosothiols to nitric oxide when in contact with blood. A reproducible nitrosothiol sensor is also disclosed. | 09-18-2008 |
20090118819 | Nitric Oxide Coatings for Medical Devices - The disclosure provides for devices and coatings that are substantially free of organic solvent sand suitable for insertion into a patient, and that comprise a metal layer and a coating with a thickness of about 20 nm to about 2000 nm wherein the coating comprises a biocompatible polymer comprising at least one residue covalently bonded to a nitric oxide generating compound. | 05-07-2009 |
Sang-Yeul Hwang, Ann Arbor, MI US
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20090287072 | POLYMER COMPOSITIONS, COATINGS AND DEVICES, AND METHODS OF MAKING AND USING THE SAME - The disclosure provides for a biocompatible, thromboresistant coating including a chalcogenide compound that induces nitric oxide formation; and a biocompatible matrix incorporating the chalcogenide compound. Devices incorporating such coatings, and methods of making and using such coatings are also disclosed herein. | 11-19-2009 |
20130329275 | OPTICAL DEVICES WITH SWITCHABLE PARTICLES - Optical display devices and methods of operating such devices are provided. The optical device includes a display component having a plurality of anisotropic multiphasic particles with at least two optically distinct phases. The plurality of anisotropic multiphasic particles is disposed in one or more regions of the display component that define an optic feature. Further, at least one of the phases of the anisotropic multiphasic particle comprises a material receptive to a force field, such as a magnetic material is receptive to an applied magnetic field. In this manner, the display component can reversibly exhibit a first optical state in the presence of the force field and thus is optionally switchable. | 12-12-2013 |
Sunbo Hwang, Midland, MI US
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20130208459 | LAMP ASSEMBLY - An example includes an apparatus for circulating a gas, the apparatus including a lamp including a filament, the lamp being substantially linear and elongate. A translucent housing can be disposed around the lamp and define a space between the lamp and the translucent housing. A manifold can be coupled to the translucent housing and define a manifold interior configured to be coupled to a pressure source, the manifold interior being in fluid communication with the space between the lamp and the translucent housing. Furthermore, a seal can be disposed between the translucent housing and the manifold that is configured to resist flow of the gas at a selected pressure. The lamp can be slideably removable through an assembly including the translucent housing sealed to the manifold. | 08-15-2013 |
Wen-Fang Hwang, Midland, MI US
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20090215953 | SHORT, FUNCTIONALIZED, SOLUBLE CARBON NANOTUBES, METHODS OF MAKING SAME, AND POLYMER COMPOSITES MADE THEREFROM - In some embodiments, the present invention relates to new processes to simultaneously shorten and functionalize raw or purified carbon nanotubes to improve their dispersity and processibility, and the short functionalized nanotubes that may be made by the processes. This present invention also relates to new compositions of matter using short functionalized carbon nanotubes with thermoset, thermoplastic polymers, high temperature polymers, and other materials; the processes for making such composite materials; and the products of said processes. | 08-27-2009 |
20100119822 | CARBON NANOTUBE COPOLYMERS AND COMPOSITIONS AND METHODS OF USING THE SAME - New carbon nanotube polymers and compositions are provided. The polymers comprise recurring blocks or units of carbon nanotubes and a compound other than a carbon nanotube. The compound is a polymeric or oligomeric block and is bonded to the carbon nanotube outer sidewall rather than to the carbon nanotube end, and is preferably a block copolymer of the compound and the carbon nanotube. The polymers can be used to prepare compositions that can be formed into products that are useful for building components present in airplanes. | 05-13-2010 |
20110110843 | NEAT CARBON NANOTUBE ARTICLES PROCESSED FROM SUPER ACID SOLUTIONS AND METHODS FOR PRODUCTION THEREOF - Articles comprising neat, aligned carbon nanotubes and methods for production thereof are disclosed. The articles and methods comprise extrusion of a super acid solution of carbon nanotubes followed by removal of the super acid solvent. The articles may be processed by wet-jet wet spinning, dry-jet wet spinning, and coagulant co-flow extrusion techniques. | 05-12-2011 |