Hyeon, KR
Byeong-Bae Hyeon, Daejeon KR
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20090085889 | PORTABLE COMMUNICATION DEVICE HAVING A TOUCH KEY - A portable communication device having a panel and a touch key with a touch sensor pad integrally attached to the panel is provided. More particularly, the portable communication device includes a panel, a printed circuit board, and a control unit, wherein the portable communication device includes one or more touch sensor pads disposed on the panel for detecting a touch of the panel and for generating respective signals corresponding to the detection, and one or more connection terminals provided with the touch sensor pads, respectively, the one or more connection terminals for electrically connecting to one or more interconnection devices on the printed circuit board, respectively, for applying the signals from the touch sensor pads to the control unit. | 04-02-2009 |
Byeongcheol Hyeon, Gyeongsanbuk-Do KR
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20090309861 | POWER SUPPLY AND PLASMA DISPLAY DEVICE HAVING THE SAME - A power supply and a plasma display device having the power supply is disclosed. The power supply reduces power used in a power factor correction unit and a DC converter by distributing the total power of the power supply between the power factor correction unit and the DC converter. | 12-17-2009 |
Byeong-Cheol Hyeon, Suwon KR
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20150106104 | DISPLAY DEVICE AND CONTROL METHOD THEREOF - Disclosed is a display device including: a signal receiver which receives a remote control signal from a remote controller that includes a plurality of input buttons; a storage which stores therein voice information corresponding to the plurality of input buttons of the remote controller; a voice output which outputs the voice information; and a voice output controller which identifies one of the plurality of input buttons that has been selected from the input buttons, based on the received remote control signal, and controls the voice output to output the stored voice information corresponding to the identified input button. | 04-16-2015 |
Byeong-Cheol Hyeon, Suwon-Si KR
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20130169517 | POWER SUPPLYING APPARATUS, POWER SUPPLYING METHOD, ORGANIC LIGHT-EMITTING DIODE DISPLAY APPARATUS - A power supplying apparatus, a power supplying method, an organic light-emitting diode (OLED) display apparatus are provided. The OLED display apparatus includes: a plurality of components which are to perform an operation of the OLED display apparatus; a power supplying unit; a rectifier which rectifies an input voltage supplied from the power supplying unit; and a voltage level converter which converts a level of the input voltage rectified by the rectifier and supplies the input voltage having the converted level to the plurality of components. | 07-04-2013 |
20130169695 | POWER SUPPLY DEVICE, DISPLAY APPARATUS HAVING THE SAME, AND POWER SUPPLY METHOD - A display apparatus includes an OLED panel receiving an input of a video signal and a plurality of driving power levels for RGB colors and displaying an image, a video signal providing unit providing the video signal to the OLED panel, and a power supply supplying the plurality of driving power levels to the OLED panel unit and performing individual feedback control for each of the plurality of driving power levels. | 07-04-2013 |
20130169697 | DEVICE AND METHOD FOR DISPLAYING IMAGE, DEVICE AND METHOD FOR SUPPLYING POWER, AND METHOD FOR ADJUSTING BRIGHTNESS OF CONTENTS - A device and a method for displaying an image, a device and a method for supplying power, and a method for adjusting brightness of contents are provided. The device for displaying the image includes: a pixel value converter which, if a plurality of color pixel values of the image is received, converts the received color pixel values; a display panel which includes a plurality of color light-emitting devices and which drives each of the plurality of color light-emitting devices based on the converted color pixel values; a light-emission controller which provides the display panel with a control signal which variably controls respective driving times of each of the color light-emitting devices based on colors; and a global controller which controls the light-emission controller to variably adjust a duty ratio of the control signal based on colors and the converted color pixel values. | 07-04-2013 |
20140001975 | LIGHT EMITTING DIODE DRIVING APPARATUS, DRIVING METHOD OF LIGHT EMITTING DIODE, AND COMPUTER-READABLE RECORDING MEDIUM | 01-02-2014 |
20140056034 | DC/DC CONVERTER, ELECTRONIC APPARATUS HAVING THE SAME AND DC/DC CONVERSION METHOD THEREOF - A multi-output DC/DC converter, which may be included in an electronic apparatus, performs sync switching control using a simplified configuration. The DC/DC converter may include a first switching unit which alternately switches input DC power and converts the DC power into AC power, a converter which converts the AC power and outputs first power and second power, a first output unit which receives the first power and outputs an output voltage, a second output unit which includes a second switching unit, and receives and switches the second power through the second switching unit and outputs an output voltage, and a controller which detects a voltage applied to a winding wire of the first output unit, generates a sync signal by using the detected voltage, compares the sync signal with a predetermined reference and controls the second switching unit to synchronize the second switching unit with the first switching unit. | 02-27-2014 |
20140218421 | DISPLAY APPARATUS AND CONTROL METHOD THEREOF - Disclosed are a display apparatus and a control method thereof, the display apparatus including: a display unit which includes a plurality of pixels with an organic light emitting diode (OLED); a power supply which supplies power to the display unit; an image processor which processes an image signal in accordance with the plurality of pixels; and a controller which divides the frame into a plurality of sub-frames, assigns bit weights to each of the divided sub-frames, and controls the power supply to supply a voltage which is adjusted by the assigned bit weights in accordance with the sub-frames to the display unit. | 08-07-2014 |
20140354168 | POWER SUPPLY AND METHOD FOR CONTROLLING THE SAME - A power supply includes an inputter including an input capacitor and configured to receive an input DC voltage, a converter including an output capacitor and configured to convert the input DC voltage and to output the converted DC voltage, and a controller configured to control the converter to output a voltage corresponding to a reference voltage. | 12-04-2014 |
20150128183 | BROADCAST RECEIVING APPARATUS AND METHOD FOR TUNING CHANNEL THEREOF - A broadcast receiving apparatus and a method for tuning a channel of a broadcast receiving apparatus is provided. The method includes displaying contents received through a broadcast channel, changing, if a channel zapping command is received, the broadcast channel, displaying, if the channel zapping command is consecutively received a plurality of times within a predetermined amount of time, a user interface (UI) using which a user can select a broadcast channel, and tuning, if a broadcast channel is selected from the UI, the selected broadcast channel. | 05-07-2015 |
Byeong-Gyu Hyeon, Seoul KR
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20150210175 | ELECTRIC VEHICLE, AND DEVICE AND METHOD FOR CHARGING SAME - An electric vehicle and a device and method for charging the electric vehicle are disclosed. The device for charging an electric vehicle includes a charger cable communication unit, a charger security unit, and a control unit. The charger cable communication unit receives encrypted electric vehicle charging information from an electric vehicle. The charger security unit decrypts the encrypted electric vehicle charging information. The control unit determines whether the decrypted electric vehicle charging information is identical with charger charging information. The charger security unit encrypts the charger charging information if the control unit of the device for charging an electric vehicle determines that the decrypted electric vehicle charging information is not identical with the charger charging information. The charger cable communication unit sends the encrypted charger charging information to the electric vehicle. The control unit charges the electric vehicle when an acknowledgement message is received from the electric vehicle. | 07-30-2015 |
Changho Hyeon, Seoul KR
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20090001877 | ORGANIC LIGHT EMITTING DEVICE - An organic light emitting device is disclosed. The organic light emitting device includes a first substrate, a display unit that is positioned on the first substrate and includes a plurality of subpixels, a second substrate facing the first substrate, a seal member attaching the first substrate to the second substrate, and at least one projection. The seal member substantially has a water vapor permeation rate of 10 | 01-01-2009 |
Chang Ho Hyeon, Yongin-Si KR
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20080231565 | Light emitting display device and driving method thereof - A method of driving an organic light emitting display device includes: receiving an image signal by sub-field with respect to a single frame comprising the N number of sub-fields (N is a natural number greater than 2) from the exterior; dividing a single sub-field into an address period and a display period and selectively calling a data signal of a single sub-field from the M number of sub-field memories (M is a natural number greater than 2); and applying the called data signal of the single sub-field to a sub-pixel. | 09-25-2008 |
20090134765 | DISPLAY DEVICE - A display device and a temperature control unit having the same are disclosed. The display device includes a substrate with a display element, and a transparent plate which is in contact with the substrate and has a larger area than that of the substrate. | 05-28-2009 |
Jeong Min Hyeon, Suwon KR
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20130089703 | SOLDER RESIST COMPOSITION, BOARD FOR PACKAGE COMPRISING SOLDER RESIST OPENING USING THE COMPOSITION, AND METHOD FOR PREPARING THE BOARD FOR PACKAGE - The present invention relates to a solder resist composition including: 1 to 10 parts by weight of a triazene curing agent; 1 to 10 parts by weight of a curing accelerator; and 10 to 50 parts by weight of a diluent, with respect to 100 parts by weight of an epoxy base, a board for a package comprising a solder resist opening using the same, and a method for preparing the board for a package. | 04-11-2013 |
Jinho Hyeon, Yongin-Si KR
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20150235055 | METHOD AND APPARATUS FOR PROCESSING BIOMETRIC INFORMATION IN ELECTRONIC DEVICE - A method and apparatus for processing biometric information in an electronic device including a processor that operates at a normal mode or at a secure mode, the method comprising, detecting a biometric input event from a biometric sensor module at normal mode, creating biometric data based on sensed data from the biometric sensor module at the secure mode, performing biometric registration or biometric authentication based on the created biometric data at the secure mode, and providing result information of biometric registration or biometric authentication at the normal mode. | 08-20-2015 |
Jinho Hyeon, Gyeonggi-Do KR
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20150074418 | METHOD AND APPARATUS FOR OUTPUTTING RECOGNIZED ERROR OF SENSOR IN ELECTRONIC DEVICE - A method and an apparatus are provided for operating an electronic device. The electronic device recognizes biometric data of a user that is input to the electronic device. Information related to an input error of the biometric data based on the recognition of the biometric data is presented to the user. | 03-12-2015 |
20150234757 | SECURITY INFORMATION INPUTTING/OUTPUTTING METHOD AND ELECTRONIC DEVICE ADAPTED TO THE METHOD - A method is provided that inputs/outputs security information to/from an electronic device. The security information inputting method includes sensing a motion for inputting security information by a sensor module; creating an interrupt according to the security information inputting motion; and reading the security information by a security information inputting module, in response to the interrupt. | 08-20-2015 |
Ju-Hee Hyeon, Yongin-City KR
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20130257839 | Organic Light Emitting Diode Display - An organic light emitting diode display with improved aperture ratio includes: a substrate; first and second pixels disposed in a first row of the substrate and third and fourth pixels disposed in a second row adjacent to the first row and respectively disposed in the same columns as the first and second pixels; a scan line and a previous scan line applying a scan signal and a previous scan signal, respectively, to the pixel units; a data line and a driving voltage line applying a data signal and a driving voltage, respectively, to the pixel units; and a common initialization voltage line disposed between the first and second pixels and between the third and fourth pixels, commonly connected to the pixel units, and applying an initialization voltage. One common initialization contact hole connected to all pixels units and one initialization voltage line connected to the common initialization contact hole are surrounded by the pixel units. | 10-03-2013 |
Moon Cheol Hyeon, Muan-Gun Jeollanam-Do KR
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20150191329 | ELECTRICITY GENERATING ELEVATOR - Provided is an electricity generating elevator, which includes a cage installed in a shaft formed in a building in order to carry passengers or loads, a drive unit vertically moving the cage along the shaft, and an electricity generation unit including a coil section installed on the cage and a magnetic force generator that is installed in the shaft so as to face the coil section and provides a magnetic force to the coil section so as to generate an induced electromotive force according to a change in a position of the coil section while the cage moves up and down. Thereby, the electricity generating elevator includes the coil section attached to the cage and the magnetic force generator arranged in the shaft at a position facing the coil section, so that electric energy can be produced by the coil section according to a change in a position of the cage while the cage vertically reciprocates in the shaft, and the produced electric energy can be used as a power source for vertically moving the cage. Thus, maintenance expenses of the elevator can be reduced. | 07-09-2015 |
Seog San Hyeon, Seoul KR
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20110172505 | CARDIOVASCULAR ANALYZER - The present invention relates to a cardiovascular diagnostic system which enables early detection of cardiovascular diseases and defines their causes. Unlike known electrocardiographs, the cardiovascular diagnosis system can further measure elastic coefficient of blood vessels (the degree of arteriosclerosis), blood vessel compliance, blood flow, and blood flow resistance and velocity in blood vessel branches of the right and left coronary arteries. The elastic coefficient shows organic changes to blood vessels. The compliance shows organic and functional changes of blood vessels simultaneously. The blood flow shows blood flow resistance. | 07-14-2011 |
Seong-Yeol Hyeon, Gimhae-Si KR
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20100242721 | LINEAR COMPRESSOR - The present invention provides a linear compressor, including: a cylinder having a compression space of refrigerant therein; a piston linearly reciprocated inside the cylinder to compress the refrigerant; a supporter connected to the back of the piston; a plurality of front and rear main springs for elastically supporting the supporter; a motor cover installed at the front of the supporter with a predetermined interval in an axis direction to support the front main springs, a pair of supporting ends being formed by partially cutting an inner portion of the motor cover and bent backward; and a rear cover installed at the back of the supporter with a predetermined interval in an axis direction to support the rear main springs, and fixedly welded to the supporting ends of the motor cover. Unnecessary parts of the motor cover can be welded to the rear cover to prevent a material loss, and a mass-production process can be simplified to improve productivity. | 09-30-2010 |
20100310393 | STATOR FOR LINEAR COMPRESSOR - A stator for a linear compressor comprises a coil winding, in which a coil winds in a circumference direction and current flows; a bobbin set, which is wound with the coil winding and which insulates the coil winding; and a plurality of core blocks, which are arranged in a circumference direction of the bobbin set at predetermined intervals from an axial direction of the bobbin set, which is advantageously used for simplifying the manufacturing process, enhancing the clamping force, cutting an overall production cost, and reducing the size of a product incorporating the same. | 12-09-2010 |
20100316513 | LINEAR COMPRESSOR - A linear compressor comprises: a fixed member including a cylinder for providing a refrigerant compression space; a movable member, which includes a piston for compressing refrigerant inside the cylinder and a supporter composed of a center portion being aligned with a center of the piston and a support portion extended radially of the piston and which makes a linear reciprocating movement about the fixed member; a plurality of mainsprings supported on the support portion of the supporter, for elastically supporting the piston in an axial direction; and a mass member, which includes a center portion to couple with the center portion of the supporter and a plurality of ends extended from the center portion to maintain an air-gap towards the support portion of the supporter and towards the mainsprings. The linear compressor of the present invention can accommodate a maximum mass member in a defined space of a linearly reciprocating movable member, so material loss is prevented and more installation space can be secured. | 12-16-2010 |
Seung Heon Hyeon, Busan KR
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20090290482 | METHOD FOR ESTIMATING TRANSMISSION DELAY AND RECEIVER USING THE SAME - There is provided a receiver for processing a ranging channel. The receiver includes a Fourier transformer for transforming a received signal into a frequency domain signal, a ranging channel extraction and ranging code elimination unit for extracting a ranging channel from the frequency domain signal, and eliminating a code of a ranging code from the ranging channel and a ranging channel processor for estimating transmission delay or transmission power from a time domain signal. By estimating transmission delay and/or transmission power in a time domain, it is possible to rapidly and accurately adjust the transmission delay and transmission power intensity in the ranging procedure. | 11-26-2009 |
Seung-Heon Hyeon, Seoul KR
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20100246727 | Multi-Antenna Subsystem for Software Defined Radio - The present invention relates to a multi-antenna subsystem for a SDR (software defined radio) capable of supporting a multi-antenna technique to an antenna system using a multi-antenna subsystem. The multi-antenna subsystem of a multi-antenna system includes an algorithm executing unit for carrying out an algorithm for a multi-antenna technique to be required in the multi-antenna system, a frame synchronization unit for a synchronization acquisition, and a control unit for controlling the algorithm executing unit and the frame synchronization. The algorithm executing unit has a plurality of functional blocks and the functional block has state information, which can be referred by other functional blocks, for supporting SDR system. | 09-30-2010 |
Soon-Pil Hyeon, Yongin-Si KR
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20150020882 | SEALING MEMBER AND SOLAR CELL INCLUDING THE SAME - A sealing member according to an exemplary embodiment of the present invention includes a first plate having a predetermined width with a plate shape, and a second plate with a plate shape connected to both ends of the first plate, wherein the first plate and the second plate have the same plate shape and form a closed line. | 01-22-2015 |
Su-Gyeong Hyeon, Daegu KR
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20140317573 | DISPLAY APPARATUS AND METHOD OF DISPLAYING A CONTEXT MENU - A method of displaying a context menu of a display apparatus is provided. The method includes displaying a content list including at least one menu; displaying a menu identification icon that indicates on a menu of the at least one menu the existence of the context menu; and in response to any one menu of the at least one menu being focused, displaying the at least one context menu included in a focused menu. The context menu is a menu for at least one function that can be performed in relation to the menu of the at least one menu. | 10-23-2014 |
20150082249 | IMAGE DISPLAY APPARATUS, DRIVING METHOD THEREOF, AND IMAGE DISPLAY METHOD - An image display apparatus, a driving method thereof, and an image display method are provided. The image display apparatus includes: an image processor configured to generate a plurality of thumbnail images based on a plurality of reference images respectively corresponding to a plurality of contents, and set a thumbnail image from among the plurality of thumbnail images as a background image; and a display configured to display the plurality of thumbnail images on the background image. | 03-19-2015 |
Su-Gyeong Hyeon, Suwon KR
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20130212456 | BROADCAST RECEIVING APPARATUS AND METHOD OF PROVIDING WEBSITE ACCESSING ROUTE USING THE SAME - A broadcast receiving apparatus and a method of providing a website accessing route using the broadcast receiving apparatus are provided. The broadcast receiving apparatus includes: a signal processing unit which performs signal processing with respect to received broadcast contents; a communicating unit which communicates with an external server to access websites; a display unit which displays the signal processed broadcast contents or the websites; and a controlling unit which provides links to a plurality of websites regarding a plurality of categories based on information about previous visits or current visits of a user to the websites and, if one of the plurality of categories is selected, the controlling unit provides a link to a website corresponding to the selected category. | 08-15-2013 |
Su-Gyeong Hyeon, Suwon-Si KR
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20110145745 | METHOD FOR PROVIDING GUI AND MULTIMEDIA DEVICE USING THE SAME - A method for providing a graphical user interface (GUI) and a multimedia device using the same, the method including: determining if a user command is input to select a specific section of a GUI item including a plurality of sections; and extending a length of the selected section and reducing lengths of non-selected sections if it is determined that the user command is input to select the specific section of the GUI item. Therefore, the user can manipulate the GUI item more precisely. | 06-16-2011 |
20130198651 | DISPLAY APPARATUS AND ADDITIONAL INFORMATION PROVIDING METHOD USING THE SAME - A display apparatus is disclosed. The display apparatus includes a receiver which receives contents, a display unit which displays the received contents, a controller which displays a UI (User Interface) which, if a predetermined event occurs, poses a question regarding whether additional information corresponding to the contents is intended to be received, and, when an additional information reject command is input through the UI, the controller controls to change a display format of the UI when the UI is displayed thereafter. | 08-01-2013 |
20130291037 | METHOD AND SERVER FOR THE SOCIAL NETWORK-BASED SHARING OF TV BROADCAST CONTENT, AND METHOD AND DEVICE FOR RECEIVING A SERVICE FOR THE SOCIAL NETWORK-BASED SHARING OF TV BROADCAST CONTENT - A method and apparatus for transceiving television (TV)-content-related information based on a social network. A TV content sharing method for providing TV-content-related information to a plurality of TV users based on a social network includes receiving from a TV user a request to check in a TV content sharing service; providing real-time user information regarding users who check in a content checked-in by the TV user, in real time; and providing related service information regarding accessible related services in the social network in relation to the checked-in content. | 10-31-2013 |
20130311942 | DISPLAY APPARATUS AND CONTROL METHOD THEREOF - A display apparatus and a control method thereof are provided. The display apparatus includes: a display unit which displays a content image on a screen; a communication unit which communicates with an external server to receive a social network service (SNS); and a controller which displays the content image in a first area of the screen, displays an SNS image in a second area of the screen so that the SNS image and the content image do not overlap, and adjusts both a size of the content image and a size of the SNS image according to a user's input to one of the content image and the SNS image so that the content image and the SNS image do not overlap. | 11-21-2013 |
20140033238 | METHOD OF PROVIDING INFORMATION AND DISPLAY DEVICE THEREOF - A method for providing information which is performable by a display device is provided. The method includes: receiving at least one piece of broadcasting program information; obtaining at least one of viewing history information which relates to at least one piece of content that was watched before a predetermined point of time and recording information which relates to at least one piece of content that was recorded before the predetermined point of time; and displaying at least one piece of broadcasting program information from among the at least one piece of broadcasting program information which corresponds to the predetermined point of time on a first region of the display device based on the predetermined point of time, and displaying at least one of the viewing history information and the recording information on a second region of the display device based on the predetermined point of time. | 01-30-2014 |
Taeghwan Hyeon, Seoul KR
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20100228045 | BIOCOMPATIBLE SUSPENSION STABILIZER FOR DISPERSING INORGANIC NANOPARTICLES INTO AQUEOUS SOLUTION - The present invention relates to a suspension stabilizer for dispersing inorganic nanoparticles into aqueous medium. More particularly, the present invention is directed to a biocompatible suspension stabilizer which comprises phosphoryl domain having an affinity to the surface of an inorganic nanoparticle and poly(ethylene glycol) having an affinity to the aqueous medium, and which is prepared by reacting a biocompatible poly(ethylene glycol)-derivatized polymer with phosphine oxide having a leaving group. | 09-09-2010 |
20100247423 | GOETHITE NANOTUBE AND PROCESS FOR PREPARING THEREOF - The present invention relates to a goethite nanotube. Particularly, the present invention is directed to goethite nanotubes, which can be used as a catalyst relating to environment or a drug delivery system, and process for preparing the goethite nanotube, and process for preparing magnetite and hematite nanoparticles. | 09-30-2010 |
20110098453 | MAGNETIC NANOCOMPOSITE, AND PROCESS FOR SELECTIVE BINDING, SEPARATION AND PURIFICATION OF PROTEIN USING THE SAME - The present invention relates to a magnetic nanocomposite, a process for production thereof, a reusable protein-binding agent for separation of a protein including the magnetic nanocomposite, and a process for selective binding, separation and purification of a protein using the magnetic nanocomposite. In particular, the present invention is directed to a magnetic nanocomposite with a magnetic nanoparticle core of a magnetic nanoparticle, a silica shell coating said core, and a nanoparticle layer of a fourth period transition metal oxide, which coats said silica shell, a process for production of the magnetic nanocomposite, a reusable protein-binding agent the magnetic nanocomposite, and a process for selective binding, separation and purification of a protein using the magnetic nanocomposite. | 04-28-2011 |
20110303869 | CUBIC OR OCTAHEDRAL SHAPED FERRITE NANOPARTICLES AND METHOD FOR PREPARING THEREOF - The present invention relates to cubic or octahedral ferrite nanoparticles and a method for preparing the same. In particular, the present invention is directed to a ferrite nanocube which is superparamagnetic or ferromagnetic, and a method for preparing a ferrite nanocube, comprising heating a mixture of a metal precursor, a surfactant and a solvent. | 12-15-2011 |
20120114564 | MRI T1 CONTRASTING AGENT COMPRISING MANGANESE OXIDE NANOPARTICLE - The present invention relates to the use of and method for using MnO nanoparticles as MRI T1 contrasting agents which reduces T1 of tissue. More specifically, the present invention is directed to MRI T1 contrasting agent comprising MnO nanoparticle coated with a biocompatible material bound to a biologically active material such as a targeting agent, for example tumor marker etc., and methods for diagnosis and treatment of tumor etc. using said MRI T1 contrasting agent, thereby obtaining more detailed images than the conventional MRI T1-weighted images. The MRI T1 contrasting agent of the present invention allows a high resolution anatomic imaging by emphasizing T1 contrast images between tissues based on the difference of accumulation of the contrasting agent in tissues. Also, the MRI T1 contrasting agent of the present invention enables to visualize cellular distribution due to its high intracellular uptake. The MRI T1 contrasting agent of the present invention can be used for target-specific diagnosis and treatment of various diseases such as tumor etc. when targeting agents binding to disease-specific biomarkers are conjugated to the surface of nanoparticles. | 05-10-2012 |
20130065995 | Surface-Modified Tantalum Oxide Nanoparticles, Preparation Method Thereof, and Contrast Medium for X-Ray Computed Tomography and Highly Dielectric Thin Film Using Same - The present invention relates to a surface-modified tantalum oxide nanoparticle, a method for preparation thereof, a contrast agent (medium) for X-ray computed tomography, and a highly dielectric (high- | 03-14-2013 |
20130133484 | Method for the Mass Production of Silver Nanoparticles Having a Uniform Size - The present invention relates to a process for preparing uniform silver nanoparticles. In particular, the present invention is directed to a process for preparing silver nanoparticles comprising: (i) heating a mixture of a silver precursor and a surfactant under inert atmosphere to prepare silver nanoparticles; and (ii) separating the silver nanoparticles from the reaction products of the step (i). | 05-30-2013 |
20130272965 | Biocompatible Agent for Dispersing Nanoparticles into an Aqueous Medium Using Mussel Adhesive Protein-Mimetic Polymer - Provided are a mussel adhesive protein-mimetic dispersion stabilizing agent to disperse nanoparticles in an aqueous medium, a colloidal solution including nanoparticles dispersed and stabilized by the dispersion stabilizing agent, and a contrast agent including the colloidal solution. More particularly, the mussel adhesive protein-mimetic dispersion stabilizer is a polyethyleneimine-graft-(poly-ethyleneglycol;polyDOPA) PEI-graft-(PEG;PDOPA). The graft polymer is formed of two parts. One is polyethyleneglycol grafted with a polyethyleneime which has an affinity to an aqueous medium, and the other is polyDOPA which has an affinity to the surface of nanoparticles. Because of those characteristics, the stabilizer shows a stable dispersion of nano particles in the aqueous medium. | 10-17-2013 |
20130323182 | METHOD OF PREPARING IRON OXIDE NANOPARTICLES COATED WITH HYDROPHILIC MATERIAL, AND MAGNETIC RESONANCE IMAGING CONTRAST AGENT USING THE SAME - The present invention relates to a method of preparing biocompatible iron oxide nanoparticles by coating iron oxide nanoparticles having improved magnetism via annealing treatment using salt particles with a hydrophilic material and to a magnetic resonance imaging (MRI) contrast agent including the iron oxide nanoparticles prepared thereby. Among hydrophilic materials, carboxymethyl dextran (CM-dextran) is the most efficient in terms of stabilizing the annealed iron oxide nanoparticles and exhibiting contrast effects. | 12-05-2013 |
20140023594 | MRI CONTRAST AGENT FOR LYMPHOGRAPHY BASED ON IRON OXIDE NANOPARTICLES AND METHOD FOR IMAGING LYMPH NODE USING THE SAME - Provided are a contrast agent for contrast imaging lymph node, which includes iron oxide nanoparticles dispersed and stabilized in an aqueous medium by a mussel adhesive protein-mimetic copolymer, a method for contrast enhanced lymphography using the foregoing contrast agent, and a method for diagnosis of lymph node cancers using the foregoing contrast agent. Using such a mussel adhesive protein-mimetic copolymer, the surface of iron oxide is modified and dispersed well in water to prepare a colloidal solution, which in turn forms the contrast agent containing the colloidal solution. The inventive contrast agent does not have toxicity and is easily taken up to the lymph node to exhibit excellent contrast imaging effects. The contrast agent of the present invention is useful for diagnosis of metastatic cancers. | 01-23-2014 |
20150079162 | CERIA NANOCOMPLEX, PHARMACEUTICAL COMPOSITION COMPRISING SAID CERIA NANOCOMPLEX, AND METHOD FOR PREPARING SAME - The present invention relates to ceria nanocomposite, pharmaceutical composition comprising the ceria nanocomposite, and method for preparing same. More particularly, the present invention is directed to a ceria nanocomposite comprising a ceria nanoparticle, wherein the ceria nanoparticle is encapsulated with a surfactant and the surfactant is encapsulated with polyethylene glycol-phospholipid, pharmaceutical composition for preventing or treating ischemic stroke comprising thereof and method for preparing the same. | 03-19-2015 |
20150221488 | METHOD FOR IMPROVING MASS SPECTRUM REPRODUCIBILITY AND QUANTITATIVE ANALYSIS METHOD USING SAME - Methods are described for improving reproducibility of mass spectrum and quantitative analysis method using the same. More particularly, methods for improving reproducibility of a mass spectrum of a chemical compound, wherein temperatures of an ion generation reaction are controlled to be the same with each other, or wherein spectra of which temperature of ion generation reaction are the same with each other are selected from mass spectra of a chemical compound are described. In addition, methods for measuring an equilibrium constant of a proton transfer reaction between a matrix and an analyte at a certain temperature, for obtaining a calibration curve for quantitative analysis, and for quantitative analysis of an analyte by using mass spectra area described. | 08-06-2015 |
Taeghwan Hyeon, Gangnam-Gu KR
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20140170078 | MAGNETIC RESONANCE IMAGING T2 CONTRAST MEDIUM FOR CELL CONTRASTING, AND METHOD FOR MANUFACTURING SAME - The invention relates to a magnetic resonance imaging T | 06-19-2014 |
20140356272 | VOLUME PRODUCTION METHOD FOR UNIFORMLY SIZED SILICA NANOPARTICLES - The present invention relates to a method for large-scale production of uniform-sized silica nanoparticles, using a basic buffer solution. In particular, the present invention is directed to a method for producing uniform-sized silica nanoparticles, comprising: (i) adding a solution of a silica precursor and an organic solvent to a basic buffer solution, followed by heating; and (ii) separating silica nanoparticles produced in the step (i). | 12-04-2014 |
20150079006 | IRON OXIDE NANOCOMPOSITE, MAGNETIC RESONANCE IMAGING T2 CONTRAST MEDIUM COMPRISING SAME, AND METHOD FOR MANUFACTURING SAME - The present invention relates to iron oxide nanocomposite, magnetic resonance imaging T2 contrast medium comprising same, and method for manufacturing same. More particularly, the present invention is directed to An MRI (magnetic resonance imaging) T2 contrast agent, comprising an iron oxide nanocomposite which includes an iron oxide nanoparticle, wherein said iron oxide nanoparticle is encapsulated with a surfactant and said surfactant is encapsulated with polyethylene glycol-phospholipid and method for preparing the same. | 03-19-2015 |
Taeg Hwan Hyeon, Seoul KR
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20130164222 | Preparation of Extremely Small and Uniform Sized, Iron Oxide-Based Paramagnetic or Pseudo-Paramagnetic Nanoparticles and MRI T1 Contrast Agents Using the Same - Provided are a preparation method of iron oxide-based paramagnetic or pseudo-paramagnetic nanoparticles, iron oxide-based nanoparticles prepared by the same, and a T1 contrast agent including the same. More particularly, the disclosure describes a method for preparation of iron oxide nanoparticles having a extremely small and uniform size of 4 nm or less based on thermal decomposition of iron oleate complex, iron oxide-based paramagnetic or pseudo-paramagnetic nanoparticles prepared by the same, and a T1 contrast agent including iron oxide-based paramagnetic or pseudo-paramagnetic nanoparticles. | 06-27-2013 |
Tae-Jin Hyeon, Gyeonggi-Do KR
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20120317590 | METHOD AND APPARATUS FOR MERGING APPLICATIONS IN A PORTABLE TERMINAL - Merger of applications in a portable terminal includes selecting a basic application and an additional application by a user; obtaining information of the additional application; and performing a function of the additional application using the basic application and using the information of the additional application. | 12-13-2012 |
Won Yong Hyeon, Pyeongtaek KR
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20120298345 | HEAT SINK SHEET INCLUDING AN ADHESIVE HAVING GOOD HEAT CONDUCTIVITY - The present invention relates to a heat sink sheet including an adhesive containing a carbon nano-complex and having good heat conductivity. The adhesive having good heat conductivity is coated on a graphite sheet to improve heat conductivity, and an existing adhesive process and adhesive coating process are combined into a single process to manufacture a heat sink sheet, thereby providing a heat sink sheet having improved heat conductivity so as to contribute to cost reduction and increased yield. | 11-29-2012 |
Wook Hyeon, Gyeonggi-Do KR
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20100149539 | APPARATUS FOR SENSING PRECIPITATION DENSITY OF SLUDGE IN WASTE WATER TREATMENT TANK AND METHOD THEREFOR - The present invention relates to an apparatus for sensing precipitation density of sludge in a wastewater treatment tank, more particularly to an apparatus and method for precisely taking density of sludge precipitated in a wastewater treatment tank without being contaminated by sludge. The present invention of an apparatus for sensing precipitation density of sludge in a waste water treatment tank comprises a container which is tube-shaped with a bottom thereof open and submerged in wastewater as filled with gas therein; and a sensor which is installed in the space in the container, and senses sludge density as not directly contacting with wastewater. | 06-17-2010 |
Yong Cheol Hyeon, Seoul KR
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20110071398 | THREE-DIMENSIONAL PROBE APPARATUS - An ultrasound probe includes an elongated member having a longitudinal axis and a distal housing; a transducer having a transducing surface, the transducer pivotally disposed in the housing and configured so that the transducing surface is capable of selectively rotating between a first position perpendicular to the longitudinal axis and a second position at least collinear with the longitudinal axis; a transmission unit coupled to the transducer to rotate the transducer between the first and second positions; and a location detector coupled to the transmission unit to provide a signal corresponding to an orientation of the transducer between the first and second positions. | 03-24-2011 |
Yong Cheol Hyeon, Namyangju-Si KR
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20110092820 | PROBE OF ULTRASONIC DIAGNOSTIC APPARATUS AND CONTROL METHOD THEREOF - A probe of an ultrasonic diagnostic apparatus and a method of controlling the same are disclosed. The probe includes a transducer movably disposed inside a housing of the probe, a detector detecting movement of the probe, and a drive unit controlling operation of the transducer in response to an output from the detector. Acceleration of the probe is measured to adjust intensity of a holding current in order to suppress operation of the transducer depending on the acceleration of the probe, so that, if there is no movement of the probe, a low holding current is output to increase a transmission current by suppressing heat generation, thereby improving image quality. | 04-21-2011 |