Patent application number | Description | Published |
20080241297 | Electric spinning apparatus for mass-production of nano-fiber - The present invention relates to an electrospinning apparatus for mass-production of nanofibers, particularly to an electrospinning apparatus with an electric stability and an improved nozzle blocks. The bottom-up electrospinning apparatus for the mass-production of nanofiber comprises at least one nozzle block having a plurality of spinning nozzles arranged in the horizontal and vertical direction; a collector installed over the nozzle blocks in order to correspond to the nozzle blocks and maintain a certain distance in between; a power source to apply voltage difference between the nozzle block and the collector; and a spinning solution container to supply the spinning solution to the nozzle block, wherein the nozzle block and the collector are connected to the positive terminal and the negative terminal, respectively and among a plurality of spinning nozzles arranged along the horizontal line, a spinning nozzle in the middle and a spinning nozzle in the end have different height. | 10-02-2008 |
20080277836 | METHOD FOR PRODUCING NANO-FIBER WITH UNIFORMITY - The present invention relates to a method for the mass-production of nanofiber through electrospinning, particularly to a method for the mass-production of nanofiber having required properties by adjusting the spinning condition of a spinning area in which nozzle blocks and collectors are installed for electrospinning the spinning solution with uniformity. The method for producing nanofiber by electrospinning comprises the steps of determining a spinning area formed by a nozzle block in which a plurality of spinning nozzles are arranged and a collector on which nanofiber are collected; determining factors in adjusting physical properties of nanofiber in the spinning area; and adjusting the determined factors and electrospinning in the spinning area. | 11-13-2008 |
20080290507 | CHIP EMBEDDED PRINTED CIRCUIT BOARD AND FABRICATING METHOD THEREOF - The chip embedded printed circuit board and a fabricating method thereof are disclosed, wherein a circuit pattern is formed by depositing a metal layer on a support layer, a semiconductor chip is packaged on a support layer to wrap the semiconductor chip and the circuit pattern on the support layer and to form an isolation layer, a via hole filled with conductive material is formed through the isolation layer for interlayer electrical connection, part of the support layer is selectively removed to form a plated heat sink, such that a packaging process can be performed in a very planar state and the plated heat sink can be integrated with a printed circuit board. | 11-27-2008 |
20090175072 | PHASE-CHANGE RANDOM ACCESS MEMORY DEVICES AND RELATED METHODS OF OPERATION - A phase-change random access memory (PRAM) device includes a plurality of banks, a plurality of column redundancy cell arrays, and a plurality of column redundancy write drivers. Each of the plurality of column redundancy cell arrays corresponds to at least one of the banks. Each of the plurality of column redundancy write drivers corresponds to at least one of the column redundancy cell arrays. The column redundancy write drivers are configured to transmit respective redundancy test data to the corresponding ones of the column redundancy cell arrays in response to a test control signal, which may be activated in response to each program pulse for writing data. Related test and access methods are also discussed. | 07-09-2009 |
20090285009 | Nonvolatile memory devices using variable resistive elements - A nonvolatile memory device using a variable resistive element is provided. The nonvolatile memory device may include a memory cell array which includes an array of multiple nonvolatile memory cells having variable resistance levels depending on data stored. Word lines may be coupled with each column of the nonvolatile memory cells. Local bit lines may be coupled with each row of the nonvolatile memory cells. Global bit lines may be selectively coupled with the multiple local bit lines. | 11-19-2009 |
20100169806 | Apparatus and method for creating widget in portable terminal - Provided are an apparatus and a method for creating a widget of a portable terminal. The method includes: determining a building block that a user selects on a widget creating screen including building blocks necessary for widget creation; generating a tag of data corresponding to the confirmed building block; and generating a widget code including the building block and the tag. | 07-01-2010 |
20100169812 | Apparatus and method for providing widget service in portable terminal - A portable terminal includes an apparatus for enhancing security by preventing the control on an internal function of the portable terminal via a widget downloaded from a sharing site. The apparatus includes a widget engine for determining, when a widget in operation controls an internal function of the terminal, whether the widget is authorized to control the internal function, permitting the internal function control to the widget authorized to control the internal function, and blocking a widget prohibited from controlling the internal function, from controlling the internal function. | 07-01-2010 |
20100259998 | Non-volatile RAM, and solid state drive and computer system including the same - The non-volatile random access memory (RAM) includes a non-volatile RAM array, a buffer configured to buffer data to be programmed in the non-volatile RAM array and configured to buffer data read from the non-volatile RAM array, and a control block configured to read data from at least one of the non-volatile RAM array and the buffer based on whether the data to be read has been stored in the buffer, a temperature when the data was programmed, and a time lapse since the programming of the data. | 10-14-2010 |