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Feng Zhao

Feng Zhao, Columbia, SC US

Patent application numberDescriptionPublished
20100276699Silicon Carbide and Related Wide Bandgap Semiconductor Based Optically-Controlled Power Switching Devices - An optically-controlled power switch for use as an electrical switch is generally provided. The device can include a wide bandgap semiconducting material defining a stack having a p-n junction, a metal mask overlying the top surface of the stack and defining at least one opening to allow light to pass through the metal mask; a first lead wire connected to the metal stack; and a second lead wire connected to the bottom surface of the stack.11-04-2010
20110037139SCHOTTKY BARRIER DIODE (SBD) AND ITS OFF-SHOOT MERGED PN/SCHOTTKY DIODE OR JUNCTION BARRIER SCHOTTKY (JBS) DIODE - A merged PN/Schottky diode is provided having a substrate of a first conductivity type and a grid of doped wells of the second conductivity type embedded in the substrate. A Schottky barrier metal layer makes a Schottky barrier contact with the surface of the substrate above the grid. Selected embedded wells in the grid may make electrical contact to the Schottky bather metal layer, while most embedded wells do not. The diode forward voltage drop is reduced for the same diode area with reverse blocking benefits similar to a conventional JBS structure.02-17-2011

Feng Zhao, Beijing CN

Patent application numberDescriptionPublished
20100164877METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT FOR PROVIDING A PERSONALIZABLE USER INTERFACE - An apparatus for providing a personalizable user interface may include a processor. The processor may be configured to receive a drawing input at a touch screen display, determine whether the drawing input corresponds to a stored graphic element that is associated with a function, and initiate the function in response to determining that the drawing input corresponds to the stored graphic element. A corresponding method and computer program product are also provided.07-01-2010
20110029931SYNCHRONOUS CONTROL METHOD AND SYSTEM FOR MULTI-COMPUTER - A synchronous control method for multi-computer is provided. The multi-computer is connected with each other through a network. The method includes the following steps: maintaining a running information list on each computer in the network, where the identifier information of all computers and the running state information of the corresponding computers are contained in the running information list; receiving a synchronous control instruction inputted by a user at any of the computers in the network; executing the synchronous control operation on the computers recorded in the running information list when the running state information of the computer receiving the instruction accords with a predetermined rule.02-03-2011
20110158558METHODS AND APPARATUSES FOR FACILITATING CONTENT-BASED IMAGE RETRIEVAL - Methods and apparatuses are provided for facilitating content-based image retrieval. A method may include determining a selected target image. The method may further include generating a candidate region of interest set including one or more regions of interest within the target image. The method may additionally include determining a recommended region of interest set including one or more recommended regions of interest selected from the candidate region of interest set based at least in part upon evaluation criteria. The evaluation criteria may be determined based at least in part upon analysis of maintained region of interest-based searching history. The method may also include providing the recommended region of interest set for user selection of one or more target regions of interest from the recommended region of interest set as query criteria for searching an image library for one or more result images. Corresponding apparatuses are also provided.06-30-2011

Feng Zhao, Xinchang City CN

Patent application numberDescriptionPublished
20110019952Self-Aligning Maintenance Free Bearing Unit for Agricultural Applications - A contamination-resistant bearing assembly includes an outer ring mounted within a housing and an inner ring rotatably supported from the outer ring. Inboard and outboard seal structures are disposed within a bearing space defined between the rings and prevent contaminants from entering a rolling element lubrication zone. A surface seal may also be included to protect the spherical interface between the housing and outer ring. The improved structure allows dynamic alignment of the bearing assembly when acted on by outside forces and also allows for extended operation under maintenance free conditions with no need for relubrication.01-27-2011

Feng Zhao, Escondido, CA US

Patent application numberDescriptionPublished
20110021515DIHYROFUROPYRMINDINE COMPOUNDS - The present invention provides mTOR inhibitors of the formula01-27-2011

Feng Zhao, Salt Lake City, UT US

Patent application numberDescriptionPublished
20100319535HIGH-TEMPERATURE, STEAM-SELECTIVE MEMBRANE - A high-temperature, steam-selective membrane for adding steam to or removing steam from various types of chemical reactions is disclosed herein. In one embodiment, such a membrane includes a polymer layer (a Nafion or sulfonated PEEK polymer layer, for example) exhibiting high selectivity to the transport of steam relative to other gas species. The polymer layer is sandwiched between substantially rigid porous layers that are steam permeable. The rigid porous layers substantially immobilize the polymer layer and reduce the tendency of the polymer layer to shrink and/or expand in response to changes in temperature or humidity. The rigid porous layers may also retain water to keep the polymer layer moist. The physical support and moisture retention provided by the rigid porous layers enable the polymer layer to operate in a temperature range of about 100° C. to 500° C.12-23-2010

Feng Zhao, Singapore SG

Patent application numberDescriptionPublished
20090233444POLISHING METHOD WITH INERT GAS INJECTION - A polishing process in a semiconductor device fabrication process employs a polishing composition in which a gaseous phase is created within the polishing composition. During a polishing process, the gaseous phase dynamically responds to changes in the surface profile of the material undergoing removal by chemical and abrasive action during polishing. The inert gas bubble density dynamically increases in proximity to surface region of the substrate being polished that are prone to dishing and erosion. The increased inert gas bubble density operates to reduce the polish removal rate relative to other regions of the substrate. The dynamic action of the gaseous phase within the polishing composition functions to selectively reduce the localized polish removal rate such that a uniformly smooth and flat polished surface is obtained that is independent of the influence of pattern density during the polishing process.09-17-2009
20100206818ULTRASONIC FILTRATION FOR CMP SLURRY - The present invention relates to semiconductor processing. In particular, it relates to a tunable ultrasonic filter and a method of using the same for more effective separation of large particles from slurry. In one embodiment a standing wave is produced in the filter and large particles are accumulated at the nodes of the standing waves while the slurry is flowed out of the filter.08-19-2010
20110316166INTEGRATED CIRCUIT SYSTEM WITH VIA AND METHOD OF MANUFACTURE THEREOF - A method of manufacture of an integrated circuit system includes: forming an etch stop layer over a bulk substrate; forming a buffer layer on the etch stop layer; forming a hard mask on the buffer layer; forming a through silicon via through the etch stop layer with the hard mask detected and the buffer layer removed with a low down force; and forming a passivation layer on the through silicon via and the etch stop layer.12-29-2011

Patent applications by Feng Zhao, Singapore SG

Feng Zhao, Ningbo CN

Patent application numberDescriptionPublished
20100067971WRITING INSTRUMENT HAVING A SLIDABLE CAP - A writing instrument comprises a substantially tubular body extending between a top and a writing end, and an elongate slot disposed in an outer surface of the body and having a detents defined at each end of the slot, and a tubular open-ended cap disposed coaxially around the body and having a cut defining an elongate arm connected to the cap at one end and having an inwardly-oriented protrusion at another end and sized to engage the detents of the slot. The cap is slidable along the body such that the inwardly-oriented protrusion slides along the slot until it engages a detent at an end of the slot thereby arresting the cap either in a closed position, in which the cap covers the writing end, or in an open position in which the writing end is exposed.03-18-2010

Feng Zhao, Harrison, NJ US

Patent application numberDescriptionPublished
20090313163Credit line optimization - In a system for assigning a credit line to a credit card application, the system receives a plurality of credit card applications each having applicant information. For each application, the system retrieves credit bureau information. The applicant information and the credit bureau information are used to model the likely behavior of the corresponding applicant. The applications are clustered into one or more clusters according to the modeled behavior. For each cluster of applications, financial measures are forecasted and analyzed to determine the optimal credit line to assign to the cluster.12-17-2009

Feng Zhao, Markham CA

Patent application numberDescriptionPublished
20090261999DEVICE AND METHOD FOR TESTING OF DIGITAL-TO-ANALOG CONVERTER - A current-steering digital-to-analog converter (DAC) is tested using a test component having a relaxation oscillator with an oscillation frequency based on the output current of the DAC. A series of test values is provided in sequence to the DAC for conversion to an output current with a magnitude that varies with the test values. The test component counts the number of oscillations (“the oscillation count”) of the relaxation oscillator over a fixed duration that is substantially equal for each test value. As the number of oscillations over the fixed duration depends on the oscillation frequency of the relaxation oscillator, which in turn is based on the magnitude of the output current, the oscillation count can be used as a relative measure of the magnitude of the output current for the corresponding test value. Accordingly, the oscillation counts for the test values can be used to determine operational characteristics of the DAC.10-22-2009

Feng Zhao, Taichung TW

Patent application numberDescriptionPublished
20080239720Optical Apparatus with Dual Illuminating Devices - An optical apparatus with dual illuminating devices includes a body, a first lighting device, a pivoting arm, an actuating pin, a switch and a second lighting device. The body has a joint portion. The first lighting device is mounted in the body. The pivoting arm has a first end and a second end. The first end is pivotally mounted on the joint portion so that the pivoting arm can be adjusted between a first position and a second position relative to the body. The second lighting device is mounted on the second end of the pivoting arm. Rotating the pivoting arm drives the actuating pin to press the switch, which turns off the second lighting device and turns simultaneously on the first lighting device.10-02-2008

Feng Zhao, Wuhan CN

Patent application numberDescriptionPublished
20120025141METHOD AND SYSTEM FOR PRODUCING SYNTHETIC GAS FROM BIOMASS BY HIGH TEMPERATURE GASIFICATION - The invention is relates to a method and a system for producing synthetic gas from biomass by high temperature gasification, including: feeding raw material, carbonizing, pulverizing the charcoal, and transporting charcoal powder to the gasification furnace for gasification. A heat source for the carbonizing is achieved by a direct combustion reaction between external combustible gas and external oxygen in a carbonization furnace. The heat emitted from the reaction being directly provided to the necessary heat of biomass pyrolysis, and yielding pyrolysis gas and charcoal from carbonization furnace. The temperature of carbonization furnace is controlled at between 400° C. and 600° C. by adjusting the amount of oxygen. The temperature of a burner nozzle of the carbonization furnace is controlled at between 1200° C. and 1800° C. by adjusting the input amount of the external combustible gas at between more than 1 and less than 5 times that required for a complete combustion with the external oxygen. Pulverizing the charcoal includes charcoal cooling, decompression, pulverizing, supercharging, fluidizing, and transported to the gasifier by controlling the amount of pyrolysis gas.02-02-2012