Patent application number | Description | Published |
20090004582 | Electrophotographic toner - An electrophotographic toner is provided including parent toner particles having a small average particle diameter and external additives applied to the surface of the parent toner particles. The external additives include: a large particulate silica; a small particulate silica; a conductive titanium oxide; strontium titanate; and an aluminum oxide. High-quality and high-speed imaging can be performed using the toner since the amount of toner charge can be stably maintained for both initial and long-term use. | 01-01-2009 |
20100178227 | METHOD FOR PREPARING METAL COMPOUND NANOPARTICLES - A method for preparing metal compound nanoparticles, comprising treating a uniform dispersion of at least one metal precursor in an organic solvent with a supercritical carbon dioxide fluid to attain a homogeneous mixture, which is subjected to a solvothermal reaction under a subcritical CO | 07-15-2010 |
20100181522 | MAGNETIC COMPOSITE POWDERS, PREPARING METHOD THEREOF AND ELECTROMAGNETIC NOISE SUPPRESSING FILMS COMPRISING SAME - This invention relates to a magnetic composite powder, a method of preparing the same and an electromagnetic noise suppressing film comprising the same. The magnetic composite powder and the electromagnetic noise suppressing film can effectively suppress unwanted electromagnetic waves emitted by various parts of an advanced digital device having high performance characteristics in terms of speed, frequency and functionality. | 07-22-2010 |
20100238186 | Display Controllers Including Memory Controllers - A display controller is provided. The display controller includes an external memory and a timing controller which compresses current frame data to generate front first in-first out (FIFO) input data, temporarily stores the front FIFO input data and writes the front FIFO input data to the external memory in a burst mode, and reads data from the external memory in the burst mode, temporarily stores the read data as back FIFO output data, and decodes the back FIFO output data to output previous frame data. | 09-23-2010 |
20120120043 | IMAGE DATA COMPRESSING AND DECOMPRESSING METHODS AND DISPLAY DRIVING DEVICE USING THE SAME - Disclosed is a display driving device, a display device including the same, and an image data compression and decompression method. The display driving device comprises an encoder that compresses PenTile® matrix encoded input image data using a binary encoding scheme and a DPCM encoding scheme, calculates errors produced by each encoding scheme, and selects an encoding scheme mode and its compressed data according to the calculated errors. A decoder decompresses the compressed data according to a decoding scheme corresponding to the selected encoding scheme mode. And a source driver drives source lines connected with a display panel based on decompressed data. | 05-17-2012 |
20120313032 | MULTIFUNCTIONAL THERMAL CONDUCTING AND/OR RADIATING PARTICLES AND ARRAY HAVING THE SAME, AND FABRICATION METHOD THEREOF - Disclosed are a multifunctional thermal conducting and/or radiating particle simultaneously having at least one of various functions, such as electromagnetic wave absorbing property, flame retardency, antistatic property, insulating property, thermal resistance and electrical conductivity, as well as a thermal conductivity, a composite array having the same and a fabrication method thereof. The multifunctional thermal conducting and/or radiating particle is composed of a core and a shell, wherein the core includes a core particle having a lower thermal conductivity than that of a particle included in the shell, and the shell includes high-thermal conductive particles each having a higher thermal conductivity than that of the core particle. | 12-13-2012 |
20130140526 | HEXAGONAL BORON NITRIDE SHEET, METHOD OF PREPARING THE HEXAGONAL BORON NITRIDE SHEET, AND ELECTRONIC DEVICE INCLUDING THE HEXAGONAL BORON NITRIDE SHEET - A hexagonal boron nitride sheet having: a two-dimensional planar structure with a sp | 06-06-2013 |
20130153860 | METHOD OF FORMING HYBRID NANOSTRUCTURE ON GRAPHENE, HYBRID NANOSTRUCTURE, AND DEVICE INCLUDING THE HYBRID NANOSTRUCTURE - A method of forming a hybrid nanostructure on graphene, the method including providing a graphene layer on a substrate; forming a metal layer on the graphene layer; and chemically depositing a nanomaterial on the graphene layer on which the metal layer is formed to form the hybrid nanostructure. | 06-20-2013 |
20130288291 | METHOD FOR COLLECTING A SAMPLE OF MICROORGANISMS FROM THE SURFACE OF A SOLID MATERIAL USING A CONTACTLESS PARTITIONING SYSTEM, AND APPARATUS FOR PARTITIONING THE SURFACE OF THE SOLID MATERIAL - The present invention relates to an apparatus for partitioning a sampling region on a solid surface and a method for collecting a microbial sample from a solid surface, in which an optimal sampling region is partitioned on a solid surface using a light source without bringing the solid surface into direct contact with a ruler or a partitioning tool. With the apparatus and method, a solid surface can be prevented from being contaminated during partitioning process, accuracy of sampling operation can be increased, partitioning operation can be continuously performed in a simple manner, and cost of sampling operation can be reduced. | 10-31-2013 |
20130303357 | METHOD OF PREPARING MAGNESIUM OXIDE STRUCTURE WITH MESO-MACRO PORES - Provided are a method of preparing a magnesium oxide structure and a magnesium oxide structure prepared by using the method. The magnesium oxide structure has meso-macro pores, a large specific surface area, and high strength, thereby enabling production of a catalyst with high catalytic activity. | 11-14-2013 |
20140145116 | IRON-MODIFIED NI-BASED PEROVSKITE-TYPE CATALYST, PREPARING METHOD THEREOF, AND PRODUCING METHOD OF SYNTHESIS GAS FROM COMBINED STEAM CO2 REFORMING OF METHANE USING THE SAME - The present invention relates to an Fe-modified perovskite-type catalyst, a method for preparing same and a method for preparing a synthesis gas by a combined reforming reaction using same. More particularly, it relates to a catalyst for a combined natural gas/steam/carbon dioxide reforming reaction having a perovskite structure with La and Sr introduced at the A site and Ni and Fe introduced at the B site with specific molar ratios and a method for producing a synthesis gas for Fischer-Tropsch synthesis or methanol synthesis using the catalyst by the combined reforming reaction. The catalyst of the present invention exhibits higher carbon dioxide conversion rate, significantly reduced catalyst deactivation caused by carbon deposition and improved long-term catalyst stability and activity, as compared to the existing catalyst for reforming reaction prepared by the impregnation method. | 05-29-2014 |
20140194278 | POROUS SILICON CARBIDE NANOCOMPOSITE STRUCTURE COMPRISING NANOWIRES AND METHOD OF PREPARING THE SAME - Provided are a porous silicon carbide nanocomposite structure comprising nanowires that are self-formed, a preparation method thereof, and a catalyst comprising the same, in which the catalyst with excellent activity may be prepared by uniformly supporting a catalytically active component in meso-macro pores and nanowires. | 07-10-2014 |
20140218867 | PASSIVE LAYER FOR ATTENUATION OF NEAR-FIELD ELECTROMAGNETIC WAVES AND HEATDISSIPATION INCLUDING GRAPHENE, AND ELECTROMAGNETIC DEVICE INCLUDING THE SAME - The present invention relates to a passive layer including graphene for the attenuation of near-field electromagnetic waves and heat dissipation. The passive layer blocks electromagnetic waves radiated from an external electronic device or prevents electromagnetic waves generated in an electronic device from emitting to the outside. The passive layer is designed to reduce interference between transmission circuits of a device in the near-field region or influence such as malfunction caused by external electromagnetic waves. The present invention also relates to an electromagnetic device and a circuit board, each including the passive layer. | 08-07-2014 |
20140239256 | METHOD OF MANUFACTURING GRAPHENE LAMINATED STRUCTURE, GRAPHENE LAMINATED STRUCTURE, AND ELECTRONIC DEVICE INCLUDING THE GRAPHENE LAMINATED STRUCTURE - A method of manufacturing a graphene laminated structure includes plasma-treating a surface of a hexagonal boron nitride sheet using a fluorine-based gas plasma, depositing the hexagonal boron nitride sheet on a graphene sheet, and forming an insulating layer on a surface of the surface-treated hexagonal boron nitride sheet. | 08-28-2014 |
20140287244 | SUBSTRATE ASSEMBLY, METHOD OF FORMING THE SAME, AND ELECTRONIC DEVICE INCLUDING THE SAME - A substrate assembly includes a first hexagonal boron nitride sheet directly bonded to a surface of a substrate, and a metal layer on the first hexagonal boron nitride sheet. | 09-25-2014 |
20140321524 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA IN MULTICARRIER COMMUNICATION SYSTEM - A method and an apparatus for transmitting and receiving data in a filter bank based multicarrier communication system are provided. The method includes receiving a plurality of data blocks and performing an Inverse Fast Fourier Transform (IFFT) operation on the plurality of data blocks, multiplying the plurality of data blocks on which IFFT has been performed and time axis filter coefficients, and transmitting a result obtained by adding the plurality of multiplied data blocks as a multi carrier signal. | 10-30-2014 |
20140349836 | PROCESS FOR PREPARING NICKEL BASED CATALYSTS FOR SCR OF NATURAL GAS - The present invention relates to a method for preparing a nickel-based catalyst for steam carbon dioxide reforming (SCR) of natural gas using steam and carbon dioxide, more particularly to a method for preparing a nickel-based catalyst represented by Ni/η-Al | 11-27-2014 |