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Joo, Yongin-Si

Alex Joo, Yongin-Si KR

Patent application number	Description	Published
20100097112	DUTY CYCLE CORRECTION CIRCUITS HAVING SHORT LOCKING TIMES THAT ARE RELATIVELY INSENSITIVE TO TEMPERATURE CHANGES - A duty cycle correction circuit includes a duty cycle correction portion that is configured to output a correction signal that is obtained by correcting a duty cycle of an input signal and to output a delayed signal that is obtained by delaying the correction signal, a complementary portion that is configured to output a complementary signal that is the complement of the delayed signal, and a phase interpolator that is configured to phase interpolate the complementary signal and the correction signal.	04-22-2010
20100194456	Delay locked loop, electronic device including the same, and method of operating the same - A delay locked loop controls a plurality of delay blocks included in a delay line and thus generate a plurality of clock signals which have a frequency obtained by multiplying a frequency of a reference clock signal, an accurate phase delay, and a constant duty cycle. The delay locked loop calculates an initial delay value and applies it to the delay blocks, thereby preventing harmonic locking and reducing locking time.	08-05-2010
20100219867	Delay-locked loop and electronic device including the same - A delay locked loop is provided. The delay locked loop controls the number of delay cells that delay the phase of an input clock during a locking operation and controls a phase delay value of at least one delay cell among a plurality of delay cells after the locking operation is completed.	09-02-2010

Chulmin Joo, Yongin-Si KR

Patent application number	Description	Published
20110043118	LIGHT-EMITTING DIODE BACKLIGHTING SYSTEMS - Lighting system embodiments are provided to energize and calibrate strings of light-emitting diodes. These embodiments are particularly useful for calibration of strings of light-emitting diodes that are arranged to provide backlighting of liquid crystal displays. The systems are structured around the use of a single comparator that is multiplexed to facilitate calibration of a plurality of current sources. The systems can be adapted for use in displays in which different techniques (e.g., “analog dimming” and “pulse-width modulation”) are used to vary the brightness of the display. The systems remove the need for special structures (e.g., fuse arrays, special test equipment, and interfaces).	02-24-2011

Joon-Yong Joo, Yongin-Si KR

Patent application number	Description	Published
20090140313	Nonvolatile memory devices and methods of forming the same - A method of forming nonvolatile memory devices according to example embodiments of the present invention includes forming a device isolation layer defining active regions in a semiconductor substrate; forming a plurality of transistors on the active regions, the plurality of transistors comprising a pair of adjacent string selection transistors, a pair of adjacent ground selection transistors, and a plurality of memory cell transistors connected in series between the string selection transistors and ground selection transistors; forming a common source line using SEG between a pair of adjacent ground selection transistors so that the common source line has a top surface lower than a top surface of the pair of adjacent ground selection transistors.	06-04-2009

Jung Suk Joo, Yongin-Si KR

Patent application number	Description	Published
20100202367	VELOCITY BASED RANDOM ACCESS SCHEME - A communications method includes establishing two or more access slot groups corresponding to velocity ranges of mobile units, receiving a signal from a mobile unit in an access slot of an access slot group, where the signal includes a sequence, and detecting the sequence using a detection algorithm, where the detection algorithm used is assigned to the access slot group.	08-12-2010

Kwang Chul Joo, Yongin-Si KR

Patent application number	Description	Published
20090096012	FLASH MEMORY DEVICE AND METHOD OF FABRICATING THE SAME - A flash memory secures a desired coupling ratio in a target thickness by lowering the leakage current through a high-dielectric (k) layer employing a combination of energy band gaps. The flash memory device includes a tunnel insulating layer formed on a semiconductor substrate, a first conductive layer formed on the tunnel insulating layer, a high-dielectric (k) layer having a stacked structure of first, second and third high-k insulating layers formed on the first conductive layer, and a second conductive layer formed on the high-k layer. The first high-k insulating layer has a first energy bandgap, the second high-k insulating layer has a second energy bandgap greater than the first energy bandgap, and the third high-k insulating layer has a third energy bandgap smaller than the second energy bandgap.	04-16-2009

Kyu-Nam Joo, Yongin-Si KR

Patent application number	Description	Published
20090009690	LIGHT EMISSION DEVICE AND DISPLAY DEVICE USING THE LIGHT EMISSION DEVICE AS LIGHT SOURCE - A light emission device for improving high voltage stability and a display device using the same as a light source includes first and second substrates facing each other, an electron emission unit located on one side of the first substrate and including a plurality of electron emission elements, and a light emission unit located on one side of the second substrate and emitting a visible light. Each of the electron emission elements includes first electrodes spaced apart from each other by a predetermined interval along a first direction of the first substrate, second electrodes arranged between the first electrodes along the first direction, and first electron emission regions electrically connected to the first electrodes and formed at a predetermined height lower than that of the first electrodes.	01-08-2009
20110049440	METHOD OF PREPARING CONDUCTIVE NANO INK COMPOSITION - A method of preparing a conductive nano ink composition. The method includes preparing a low temperature solution by adding a portion of a metal ion solution in a mixture solvent obtained by mixing polyethylene glycol and polyvinyl alcohol, and mixing the rest of the metal ion solution to the low temperature solution.	03-03-2011
20110052997	NEGATIVE ELECTRODE FOR LITHIUM BATTERY AND LITHIUM BATTERY INCLUDING THE SAME - A negative electrode for a lithium battery includes an active material layer and a current collector. The active material layer has a plurality of crystal grains and the plurality of crystal grains include a plurality of pores. A first pore of the plurality of pores has a first length and a second length, the first length being the maximum length orthogonal to the current collector and the second length being the maximum length orthogonal to the first length, and the first length is greater than the second length.	03-03-2011
20110085965	LITHIUM TITANIUM OXIDE FOR ANODE ACTIVE MATERIAL FOR LITHIUM RECHARGEABLE BATTERY, METHOD OF PREPARING LITHIUM TITANIUM OXIDE, AND LITHIUM RECHARGEABLE BATTERY INCLUDING LITHIUM TITANIUM OXIDE - A lithium titanium oxide for an anode active material of a lithium rechargeable battery, wherein a X-ray diffraction (XRD) spectrum has a first peak of Li	04-14-2011
20110086275	LITHIUM TITANIUM OXIDE, METHOD OF PREPARING LITHIUM TITANIUM OXIDE, AND LITHIUM RECHARGEABLE BATTERY INCLUDING LITHIUM TITANIUM OXIDE - A spherical primary particle of a lithium titanium oxide of which average diameter is in the range of about 1 to about 20 μm, a method of preparing the spherical primary particle of the lithium titanium oxide, and a lithium rechargeable battery including the spherical primary particle of the lithium titanium oxide.	04-14-2011
20110118123	SUPER-CONDUCTIVE NANOPARTICLE, SUPER-CONDUCTIVE NANOPARTICLE POWDER, AND LITHIUM BATTERY COMPRISING THE POWDER - A super-conductive nanoparticle, a super-conductive nanoparticle powder, and a lithium battery including the super-conductive nanoparticle powder.	05-19-2011
20110129733	NEGATIVE ELECTRODE FOR LITHIUM BATTERY AND LITHIUM BATTERY INCLUDING NEGATIVE ELECTRODE - A negative electrode for a lithium battery and a lithium battery including the negative electrode, the negative electrode including: a matrix of a Sn grain and a metal M grain; and a carbon-based material grown on the matrix.	06-02-2011
20110151322	Negative electrode for lithium ion secondary battery and lithium ion secondary battery including the same - A negative electrode for a lithium ion secondary battery and a lithium ion secondary battery, the negative electrode including a multilayer film, the multilayer film having three or more layers on a metal base, wherein the multilayer film includes one or more porous layers.	06-23-2011

Moon Sig Joo, Yongin-Si KR

Patent application number	Description	Published
20090253242	Method of Fabricating Non-Volatile Memory Device - A method of fabricating a non-volatile memory device includes: forming a tunnel insulation layer pattern and a floating gate electrode layer pattern over a semiconductor substrate; forming an isolation trench by etching an exposed portion of the semiconductor substrate so that the isolation trench is aligned with the tunnel insulation layer pattern and the floating gate electrode layer pattern; forming an isolation layer by filling the isolation trench with a filling insulation layer; forming a hafnium-rich hafnium silicon oxide layer over the isolation layer and the floating gate electrode layer pattern; forming a hafnium-rich hafnium silicon oxynitride layer by carrying out a first nitridation on the hafnium-rich hafnium silicon oxide layer; forming a silicon-rich hafnium silicon oxide layer over the hafnium-rich hafnium silicon oxynitride layer; forming a silicon-rich hafnium silicon oxynitride layer by carrying out a second nitridation on the silicon-rich hafnium silicon oxide layer; and forming a control gate electrode layer over the silicon-rich hafnium silicon oxynitride layer.	10-08-2009
20110014759	Method of Fabricating Non-volatile Memory Device - A method of fabricating a non-volatile memory device includes: forming a tunnel insulation layer pattern and a floating gate electrode layer pattern over a semiconductor substrate; forming an isolation trench by etching an exposed portion of the semiconductor substrate so that the isolation trench is aligned with the tunnel insulation layer pattern and the floating gate electrode layer pattern; forming an isolation layer by filling the isolation trench with a filling insulation layer; forming a hafnium-rich hafnium silicon oxide layer over the isolation layer and the floating gate electrode layer pattern; forming a hafnium-rich hafnium silicon oxynitride layer by carrying out a first nitridation on the hafnium-rich hafnium silicon oxide layer; forming a silicon-rich hafnium silicon oxide layer over the hafnium-rich hafnium silicon oxynitride layer; forming a silicon-rich hafnium silicon oxynitride layer by carrying out a second nitridation on the silicon-rich hafnium silicon oxide layer; and forming a control gate electrode layer over the silicon-rich hafnium silicon oxynitride layer.	01-20-2011

Sang Hoon Joo, Yongin-Si KR

Patent application number	Description	Published
20080220309	NANOCOMPOSITE, NANOCOMPOSITE ELECTROLYTE MEMBRANE INCLUDING THE SAME AND FUEL CELL INCLUDING THE NANOCOMPOSITE ELECTROLYTE MEMBRANE - A nanocomposite includes metal-carbon nanotubes and a sulfonated polysulfone. In the nanocomposite, the sulfonated polysulfone and the metal-carbon nanotubes have strong attraction therebetween due to π-π interactions or van der Waals interactions, and thus the nanocomposite has excellent ionic conductivity and mechanical properties. In addition, the nanocomposite includes a metal that can be used as a catalyst for an anode, and thus the reduction in power generation caused by methanol crossover can be minimized. Therefore, a nanocomposite electrolyte membrane prepared using the nanocomposite can minimize the reduction in power generation caused by the crossover of a polar organic fuel such as methanol. In a fuel cell employing the nanocomposite electrolyte membrane, when an aqueous methanol solution is used as a fuel, crossover of the methanol is more suppressed, and accordingly, the fuel cell has an improved operating efficiency and a longer lifetime.	09-11-2008
20100073059	Duty control circuit and semiconductor device having the same - A duty control circuit including a clock input unit connected to a first node and a second node, the clock input unit receiving an input clock signal through the first node and changing a voltage of the second node to one of a first voltage level and a second voltage level in response to respective low and high logic levels of the input clock signal, a slew controller connected to the second node, the slew controller including one or more switches controlled by respective control signals, the one or more switches providing one of the first voltage level and the second voltage level to the second node in response to the control signals such that a slew rate of a signal at the second node is varied, and a clock output unit, the clock output unit outputting an output clock signal having a duty that varies.	03-25-2010
20100294369	DYE-SENSITIZED PHOTOVOLTAIC CELL - A counter electrode for a photovoltaic cell and a photovoltaic cell including the same include a transparent substrate and a catalyst layer formed on the transparent substrate using a supported catalyst The counter electrode of the present invention has an economical preparation cost and process, and also has an enlarged contact area with an electrolyte layer of the cell, leading to improved catalytic activity. Thus, in the case where the counter electrode is applied to the photovoltaic cell, excellent photoconversion efficiency is exhibited. In an exemplary embodiment, the photovoltaic cell is a dye-sensitized photovoltaic cell including such a counter electrode.	11-25-2010

Sung-Joong Joo, Yongin-Si KR

Patent application number	Description	Published
20090001585	METHOD OF MANUFACTURING FLASH MEMORY DEVICE - A method of manufacturing a flash memory that can include forming a titanium nitride (TiN) layer on the pre-metal dielectric having the via hole and then forming a TiSiN layer by injecting silane (SiH	01-01-2009
20100155811	SEMICONDUCTOR DEVICE, METHOD OF FABRICATING THE SAME AND FLASH MEMORY DEVICE - A semiconductor device includes a semiconductor substrate, a gate formed over the semiconductor substrate, a source region formed in the semiconductor substrate at one side of the gate, a drain region formed in the semiconductor substrate at another side of the gate, and a channel region formed between the source region and the drain region, the channel region including a first channel region having a first threshold voltage and a second channel region having a second threshold voltage higher than the first threshold voltage. Accordingly, the semiconductor device has two channel regions having different threshold voltages.	06-24-2010

Sung-Yong Joo, Yongin-Si KR

Patent application number	Description	Published
20100141037	POWER SUPPLY DEVICE AND METHOD OF CONTROLLING THE SAME - Provided are a power supply device and a method of controlling the same. The power supply device includes: a power factor corrector which corrects a power factor of an initial power; a standby power supply unit which is connected to the power factor corrector, the standby power supply unit including a transformer which converts an input power received from the power factor corrector to a predetermined level of a standby power and comprises first and second coils; a sensor which is coupled to the second coil of the transformer and detects a level of an induced power corresponding to the input power; and a power supply controller which determines whether the level of the induced power exceeds a critical value when a system-on signal is received, activates the power factor corrector to correct the power factor of the initial power if the level of the induced power exceeds the critical value, and supplies a driving power to the system based on the level of the induced power detected after the power factor corrector is activated.	06-10-2010
20110096242	DISPLAY APPARATUS AND POWER SUPPLYING METHOD THEREOF - A display apparatus and a power supplying method are provided. The display apparatus includes a signal receiver which receives a video signal; a signal processor which processes the video signal; a display unit which displays an image based on a video signal processed by the signal processor; and a power supply which converts an alternating current (AC) voltage into a direct current (DC) voltage and supplies an operation voltage to the display unit, the power supply including: a power factor correction (PFC) unit which adjusts the DC voltage and corrects a power factor of the power supply; a detector which detects a plurality of voltages in the power supply and outputs a common detection signal indicating whether at least one of the plurality of voltages is abnormal; and a controller which receives the common detection signal, and controls the PFC unit based on the common detection signal.	04-28-2011
20110163602	METHOD AND APPARATUS FOR PROVIDING STANDBY POWER FOR VISUAL DISPLAY DEVICE - Provided are an apparatus and method thereof for providing standby power to a visual display, the apparatus including: a light collection unit which is operable to receive light and output a charging current; a battery which is operable to receive the charging current and providing the standby power to the visual display; and a controller which determines whether the battery has a voltage below a predetermined value, wherein if the voltage is below the predetermined value, the controller controls the battery to receive the charging current from the light collection unit, and wherein if the voltage is not below the predetermined value, the controller controls the battery to provide the standby power to the visual display.	07-07-2011

Won Jae Joo, Yongin-Si KR

Patent application number	Description	Published
20100133992	COMPOUND COMPRISING PHOSPHORESCENCE UNIT, EMITTING POLYMER AND ORGANIC EMITTING DEVICE COMPRISING THE EMITTING POLYMER - Provided are compounds containing a phosphorescence unit, an emitting polymer, and an organic light emitting device (OLED) containing an organic layer including the emitting polymer. The OLED is useful in portable electronic equipment where low power consumption and low driving voltage are desirable.	06-03-2010
20110040068	Method for forming organic layer pattern, organic layer pattern prepared by the same and organic memory devices comprising the pattern - Disclosed are a method for forming an organic layer pattern which is characterized by forming a thin layer by coating a coating solution including a polyimide-based polymer having a heteroaromatic pendant group including a heteroatom in its polyimide major chain, a photoinitiator and a crosslinking agent on a substrate and drying the substrate, and exposing and developing the thin layer, an organic layer pattern prepared by the method, and an organic memory device comprising the pattern. According to example embodiments, a high-resolution micropattern may be formed without undergoing any expensive process, e.g., photoresist, leading to simplification of the preparation process and cost reduction.	02-17-2011
20110121338	FLUORO GROUP-CONTAINING COMPOUND, FLUORO GROUP-CONTAINING POLYMER, ORGANIC LIGHT EMITTING DEVICE INCLUDING THE POLYMER, AND METHOD OF MANUFACTURING THE DEVICE - A fluoro group-containing compound, a fluoro group-containing polymer, an organic light emitting device including the polymer, and a method of manufacturing the organic light emitting device are provided.	05-26-2011

Young-Jae Joo, Yongin-Si KR

Patent application number	Description	Published
20090273076	Tape for heat dissipating member, chip on film type semiconductor package including heat dissipating member, and elctronic apparatus including the same - Disclosed is a chip-on-film (COF) type semiconductor package and a device using the same. The COF type semiconductor package may include an insulation substrate including a top surface and bottom surface, a semiconductor device on the top surface of the insulation substrate, a heat dissipating component on the bottom surface of the insulation substrate, and at least one space between the bottom surface of the insulation substrate and a top surface of the heat dissipating component.	11-05-2009
20110143625	TAPE FOR HEAT DISSIPATING MEMBER, CHIP ON FILM TYPE SEMICONDUCTOR PACKAGE INCLUDING HEAT DISSIPATING MEMBER, AND ELECTRONIC APPARATUS INCLUDING THE SAME - Disclosed is a chip-on-film (COF) type semiconductor package and a device using the same. The COF type semiconductor package may include an insulation substrate including a top surface and bottom surface, a semiconductor device on the top surface of the insulation substrate, a heat dissipating component on the bottom surface of the insulation substrate, and at least one space between the bottom surface of the insulation substrate and a top surface of the heat dissipating component.	06-16-2011

Yu-Sung Joo, Yongin-Si KR

Patent application number	Description	Published
20110125885	METHOD FOR SETTING NETWORK ENVIRONMENT AND STORAGE DEVICE APPLYING THE SAME - A method for setting a network environment and a storage device applying the same are provided. The method includes, if a storage device is connected to a first electronic device, executing a specific application stored in the storage device by the first electronic device, setting a network environment of the first electronic device by the specific application, and storing set network environment information of the first electronic device in the storage device by the specific application. Accordingly, a user automatically sets a network of diverse electronic devices using a storage device.	05-26-2011