Patent application number | Description | Published |
20090326108 | Halogen-Free Flame Retardant Thermoplastic Polyurethanes - Disclosed is a halogen-free flame retardant thermoplastic polyurethane composite resin composition. The disclosed flame retardant thermoplastic polyurethane composite resin composition is capable of improving flame retardancy and flaming-drip of a thermoplastic polyurethane resin through desirable formation of char during combustion, which uses a phosphinate, a diphosphinate and/or a polymer thereof, dipentaerythritol, talc, a melamine derivative, etc., instead of a halogen-based flame retardant, as a flame retardant. | 12-31-2009 |
20110031442 | Method For Preparing Electrostatic Dissipative Polymer - A method for preparing an electrostatic dissipative polymer and a blend of a thermoplastic polymer and the ESD polymer is disclosed. The method for preparing an electrostatic dissipative polymer includes the step of polymerizing the electrostatic dissipative polymer in the presence of a reactive solvent and lithium salt dissolved in the reactive solvent, wherein the amount of the reactive solvent is from 0.1 to 20 weight parts based on 100 weight parts of the produced electrostatic dissipative polymer, the amount of lithium salt is from 0.1 to 5 weight parts based on 100 weight parts of the produced electrostatic dissipative polymer, and the reactive solvent is aliphatic glycol having from 2 to 8 carbon atoms and having a primary alcohol group, or aromatic glycol having from 2 to 10 carbon atoms. | 02-10-2011 |
20120021198 | Transparent Multilayer Sheet Having Electrostatic Dissipative Properties - Disclosed is a transparent multilayer sheet that is excellent in antistatic properties, as well as transparency. The transparent multilayer sheet includes a surface layer comprising a conductive thermoplastic polyurethane or polyurea resin containing ethylene oxide; and a back layer attached to the surface layer and comprising a transparent non-conductive polymer resin. Preferably, the polyurethane or polyurea resin is a polymerization product of (a) a polyether-based polymer containing ethylene oxide and reacting with an isocyanate group; (b) an aromatic or aliphatic diisocyanate compound; and (c) a chain extender C2 to C10 containing a primary hydroxyl group or an amine group, and the transparent non-conductive polymer resin is selected from the group consisting of polyethylene terephthalate, glycol modified polyethylene terephthalate, glycol modified polycyclohexaneterephthalate, polymethylmethacrylate, polycarbonate, transparent acrylonitrile-butadiene-styrene (ABS), and mixtures thereof. | 01-26-2012 |
20150190628 | IV Flow Controller Having Flushing Feature - Provided is an IV flow controller which adjusts the amount of an IV material supplied to a patient through an IV tube and to which a flushing feature is added. The IV controller according to the present invention includes: a first body unit, a second body unit, a fixed roller, and a driving roller. The fixed roller is fixedly and rotatably arranged, and has a first gear unit and a second gear unit. The driving roller is accommodated such that a portion thereof is exposed, and the driving roller is moved along the lengthwise direction while controlling the flow of the IV when the exposed portion is turned. Also, in the flushing position, the driving roller rotates in cooperation with the first gear unit of the fixed roller across the IV tube so as to flush the latter. The second gear unit of the fixed roller may be configured so as to have a ratchet gear, and the second body unit has a pawl which meshes with the ratchet gear of the fixed roller in order to prevent reverse rotation. According to the present invention, flushing in the reverse direction is prevented by the ratchet gear, and thus medical accidents caused by reverse flushing can be prevented. | 07-09-2015 |
Patent application number | Description | Published |
20100045868 | BROADCAST RECEIVER AND METHOD OF PROVIDING PREFERRED CHANNEL THEREOF - A broadcast receiver and method of providing a preferred channel thereof are disclosed. The present invention includes receiving a program of the preferred channel ( | 02-25-2010 |
20100101064 | IMPROVEMENT APPARATUS OF SURFACE ROUGHNESS DEFECT OF HOT/COLD ROLLED STAINLESS STEEL COILS AND THE METHOD THEREOF - Disclosed is to an improvement apparatus of surface roughness of hot/cold rolled stainless steel coils and the method thereof. The present invention provides an improvement apparatus of surface roughness of hot/cold rolled stainless steel coils including a water spray unit for spraying water on a surface of a cast stainless steel slab; a cutting unit for cutting the stainless steel slab; and a high-pressure water spray having at least one nozzle in a region where the stainless steel slab is cut by the cutting unit and discharged and installed to be symmetric in upper and lower parts of the stainless steel slab; and a roller brush installed to be in contact with and symmetric in the upper and lower parts of the stainless steel slab passed through the water spray so as to rotate at a high speed. Accordingly, the improvement apparatus according to the present invention may be useful to produce a stainless steel slab having an excellent surface quality since it is possible to easily remove the scale and mold slag from the stainless steel slab. | 04-29-2010 |
20130208781 | TRANSMITTER AND RECEIVER FOR FREQUENCY DOMAIN EQUALIZATION - A transmitter and/or receiver for performing frequency domain equalization is provided. A transmitter includes a pilot position determination unit for determining positions for inserting pilots in a frequency domain based on frequency spectrums of data, and a pilot insertion unit for inserting the pilots between the frequency spectrums of the data according to the determined positions for inserting the pilots. | 08-15-2013 |
20150341942 | SCHEME FOR TRANSMITTING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM - Methods, systems, apparatuses, evolved NodeB (EnBs), User Equipment (UE), and chip sets for all of the same, in cellular communication systems are described. One method for a UE includes receiving a Channel State Information Reference Signal (CSI-RS) transmitted by an eNB according to a pattern in a time-frequency resource grid determined based on the transmission scheme of the eNB, measuring the state of the transmission channel using the CSI-RS, generating channel state information based on the measuring, and transmitting the channel state information as feedback. The UE receives a downlink signal including data and a Cell-specific Reference Signal (CRS) from the eNB and estimates the transmission channel using the CRS and then acquires the data using the estimated channel. | 11-26-2015 |
Patent application number | Description | Published |
20080212987 | IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING THE SAME - An image forming apparatus and a method of controlling the same. The contamination of a transfer roller is determined based on detection results of a peripheral environment using the measured resistance and the internal temperature of the transfer roller, the contaminated transfer roller is cleaned, and then an image corresponding to printing data stored when the transfer roller is contaminated is printed on a new fed sheet. | 09-04-2008 |
20090080910 | METHOD OF DETECTING JAM AND IMAGE FORMING APPARATUS USING THE SAME - A method of detecting a wrap jam or accordion jam type paper jam and stopping a printing process once a wrap jam or according jam type is detected and an image forming apparatus using the same are provided. The method of detecting the paper jam in the image forming apparatus includes sensing to detect a sheet of paper by using an exit sensor, detecting whether the sheet of paper passes between a transfer roller and an OPC (organic photoconductive) drum for a first time period if the exit sensor does not detect the sheet of paper, and stopping a printing operation of the image forming apparatus if the sheet of paper passes between the transfer roller and the OPC drum for the first time period. Accordingly, it is possible to reduce damage to a fusing roller and increase the lifetime of the fusing roller and other components of the image forming device, if a wrap jam or accordion jam type occurs. | 03-26-2009 |
20150200259 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - A method of manufacturing a vertical-cell-type semiconductor device may include stacking alternately first insulating layers and second insulating layers on a substrate, forming a channel hole through the first and second insulating layers, and forming dielectric layers. A channel layer and a gap fill pattern may be formed within the channel hole. The channel layer may cover a top surface of an uppermost first insulating layer. The top surface of the gap fill pattern is at the same level with the top surface of the channel layer. A first conductivity type impurities may be implanted into the channel layer to form a channel impurity region. A top surface of the gap fill pattern may be recessed. A contact pad on the recessed surface of the gap fill pattern may be formed. A ground selection gate electrode, cell gate electrodes, and string selection gate electrodes may be formed in interlayer spaces that be formed by removing the second insulating layers. String selection gate electrodes may formed in the channel impurity region. | 07-16-2015 |