Soon Chang

Soon Chang Lee, Daejeon KR

Patent application number	Description	Published
20110150753	METHOD FOR PREPARING UNIFORM ANATASE-TYPE TITANIUM DIOXIDE NANOPARTICLES - The present invention relates to a method for preparing anatase-type titanium dioxide (TiO	06-23-2011
20130079219	Method of Preparing High Crystalline Nanoporous Titanium Dioxide at Room Temperature - Disclosed is a method of preparing high crystalline nanoporous titanium dioxide, in which the high crystalline nanoporous titanium dioxide, which is harmless to the human body and self-purified through the decomposition of organic matters, is prepared in mass production at the room temperature through a simply synthesis method. The method includes the steps of (a) mixing a titanium precursor and a surfactant in a solvent and performing a sol-gel reaction at a room temperature; (b) maturing a reactant obtained through the sol-gel reaction at the room temperature; (c) filtering the matured reactant and washing the matured reactant; and (d) drying the washed reactant to obtain titanium dioxide having nanopores.	03-28-2013
20130123093	Method for Preparing Impurity-Doped Titanium Dioxide Photocatalysts Representing Superior Photo Activity at Visible Light Region and Ultraviolet Light Region in Mass Production - A method for preparing impurity-doped titanium dioxide photocatalysts having superior photo activity at a visible light region and an ultraviolet light region in mass production. The titanium dioxide photocatalysts are prepared in mass production using low-price reusable materials at a room temperature when titanium dioxide is doped with carbon, sulfur, nitrogen, fluorine, and phosphorous. The method for preparing impurity-doped titanium dioxide representing superior photo activity in both of the ultraviolet light region and the visible light region in mass production includes: stirring titanium dioxide powder while mixing the titanium dioxide powder with a doping agent; performing ultrasonification with respect to a mixed solution; washing a reactant obtained through the ultrasonification by using a washing solution while performing pressure-reduction filtering with respect to the reactant; obtaining doped titanium dioxide particles by drying the reactant; and performing heat treatment with respect to the doped titanium dioxide particles at a nitrogen atmosphere.	05-16-2013
20130137566	NANOPOROUS PHOTOCATALYST HAVING HIGH SPECIFIC SURFACE AREA AND HIGH CRYSTALLINITY AND METHOD FOR PREPARING THE SAME - Disclosed is a nanoporous photocatalyst having a high specific surface area and high crystallinity and a method for preparing the same, capable of preparing nanoporous photocatalysts, which satisfy both of the high specific surface area of 350 m	05-30-2013

Soon Chang Lee, Gyeonggi-Do KR

Patent application number	Description	Published
20130143496	DUMMY TOUCH SCREEN SYSTEM FOR CONNECTING A PLURALITY OF MOBILE TERMINALS - Disclosed is a dummy touch screen system. The dummy touch screen system includes a host mobile terminal and a dummy touch screen. Here, the host mobile terminal includes a first touch screen unit having a first touch panel and a first display, a first application module driven by receiving a first touch signal generated by a touch of the first touch panel, a first display module receiving a first image signal output by a drive of the first application module, a first image communication module receiving a second image signal output by the drive of the first application module, and a first human interface device (HID) module transmitting a touch signal transmitted from the outside to the first application module. The dummy touch screen includes a second image communication module receiving the second image signal, a second display module receiving the second image signal from the second image communication module, a second touch screen unit having a second display displaying a second image display signal output by a drive of the second display module, and a second HID module receiving a second touch signal generated by a touch of the second touch panel.	06-06-2013

Soon Chang Lee, Sungnam-City KR

Patent application number	Description	Published
20140283937	ELECTRO CONTROL MODULATOR VALVE AND SEMICONDUCTOR PRODUCTION APPARATUS USING THE SAME - Provided are an electronic control mixing valve and a semiconductor manufacturing apparatus using the same that are capable of controlling a temperature of a chuck base by supplying recirculation oils using a slidable mixing valve or a rotatable mixing valve, which is electrically controlled.	09-25-2014