Kang, Pohang-Si
Bongkoo Kang, Pohang-Si KR
Patent application number | Description | Published |
---|---|---|
20080211404 | PLASMA DISPLAY PANEL, AND METHOD OF DRIVING AND MANUFACTURING THE SAME - A plasma display panel and method of driving the panel is disclosed. The plasma display panel includes a front substrate, a rear substrate that is positioned opposite to the front substrate and a phosphor layer positioned between the front substrate and the rear substrate. The phosphor layer includes particles of phosphor material and particles of oxide material. The oxide material particles are positioned in the phosphor layer in such a manner that illumination at the front surface from at least one phosphor material particle in the phosphor layer is unobstructed by the oxide material particles. | 09-04-2008 |
Bong Koo Kang, Pohang-Si KR
Patent application number | Description | Published |
---|---|---|
20100117551 | Driver for backlight unit - A backlight unit, with a parallel configuration of plural lamps, having improved reliability is disclosed. The backlight unit driver includes: first and second lamps connected parallel to each other; a DC/AC inversion portion inverting a DC voltage into an AC voltage to apply the AC voltage to the lamps; a transformer transforming the AC voltage from the DC/AC inversion portion; a positive polarity AC signal compensator compensating an electric current difference between the first and second lamps using positive polarity AC signals from the first and second lamps; and a negative polarity AC signal compensator compensating the electric current difference between the first and second lamps using negative polarity AC signals from the first and second lamps. | 05-13-2010 |
20140092075 | DC-DC CONVERTER CONTROL CIRCUIT, IMAGE DISPLAY DEVICE USING THE SAME AND DRIVING METHOD THEREOF - A DC-DC converter control circuit with enhanced driving efficiency while securing circuit stability during light-load driving of the DC-DC converter through variation of an on/off duty ratio of a burst mode according to load. The control circuit includes a detection unit for detecting an amount of current and a voltage at an output stage of a DC-DC converter, and generating and outputting a differential voltage according to a level of the detected voltage, a comparison unit for comparing the differential voltage with a reference voltage having a triangle or sawtooth waveform, thereby generating a duty signal, and a converter controller for generating an on/off control signal corresponding to a duty ratio of the duty signal, and supplying the on/off control signal to the DC-DC converter, to control on/off of the DC-DC converter. | 04-03-2014 |
20140340022 | BALANCING CONTROL CIRCUIT FOR BATTERY CELL MODULE USING LC SERIES RESONANT CIRCUIT - Provided is a battery cell balancing circuit including: a battery cell module including a plurality of battery cells connected in series; a series resonant circuit including an inductor unit and a capacitor unit which are connected in series so as to store electric energy recovered from a corresponding battery cell of the battery cell module and supply the stored electric energy to a corresponding battery cell of the battery cell module; and a switch unit configured to provide an electric energy recovery path for storing the electric energy recovered from the corresponding battery cell of the battery cell module into the capacitor unit of the series resonant circuit and provide an electric energy supply path for supplying the stored electric energy to the corresponding battery cell of the battery cell module. | 11-20-2014 |
Dae Hyun Kang, Pohang-Si KR
Patent application number | Description | Published |
---|---|---|
20120126891 | POWER AMPLIFICATION APPARATUS - A power amplification apparatus includes a first amplifier turned on at a preset low input power; and a second amplifier connected in parallel with the first amplifier and turned off at a low input power due to a relatively low bias current. Output capacitors of the first amplifier and the second amplifier are compensated for by inductors or microstrip lines of dc power supply paths. An output matching circuit of the first amplifier includes a λ/4 transformer. An output matching circuit of the second amplifier has the phase of 0°. Input matching circuits of the first amplifier and the second amplifier include delay compensation circuits. The output matching circuit of the first amplifier, the output matching circuit of the second amplifier, and a final output matching circuit have the same impedance transformation rates. | 05-24-2012 |
20130241657 | MULTI-MODE DOHERTY POWER AMPLIFIER - The present invention relates to a Doherty power amplifier in which a new operation mode for accomplishing high efficiency at a lower output power level is added to operation of a conventional Doherty power amplifier, thereby achieving high efficiency at various output power levels of the power amplifier. The multi-mode Doherty power amplifier to which a second power mode is added may be reduced in size so as to be integrated into a chip. | 09-19-2013 |
Daesil Kang, Pohang-Si KR
Patent application number | Description | Published |
---|---|---|
20120074965 | AREA-VARYING CAPACITIVE SENSOR, AND SELF COMPENSATION AND SIGNAL LINEARIZATION METHOD THEREOF - An area varying capacitive sensor for substantially reducing a drift and an offset without performing a complicated process by linearizing a signal while automatically compensating the offset and the drift by additionally disposing an electrode and performing a simple signal process without applying complicated signal processing to an area varying capacitive sensor having a periodic electrode, a self compensation and signal linearization method of the area varying capacitive sensor are provided. A self compensation and signal linearization method of the sensor having four electrode sets that are disposed to generate a phase difference signal of 90 degrees comprises: controlling the four electrode sets to respectively output a signal with a phase difference of 90 degrees; acquiring two signals from which common signal components including a drift and an offset are eliminated by subtracting the signals that have opposite phases from among the signals that are output by the four electrode sets; controlling peak values of the two signals from which the common signal components are eliminated to have the same size, and acquiring two signals from which absolute values are taken; and comparing sizes of the two signals from which the absolute values are taken, taking a lesser value, and acquiring a linearized triangular wave. | 03-29-2012 |
Hee-Jae Kang, Pohang-Si KR
Patent application number | Description | Published |
---|---|---|
20080210346 | Method of Manufacturing Super Formable High Strength Steel Sheet - A super formable high strength thin steel sheet suitable for use in various applications, e.g., automobiles, and a method for manufacturing the thin steel sheet. The thin steel sheet has a composition which comprises 0.010 wt % or less of C, 0.02 wt % or less of Si, 1.5 wt % or less of Mn, 0.03-0.15 wt % or less of P, 0.02 wt % or less of S, 0.03-0.40 wt % of Sol. Al, 0.004 wt % or less of N, 0.005-0.040 wt % of Ti, 0.002-0.020 wt % of Nb, one or both of 0.001-0.02 wt % of B and 0.005-0.02 wt % of Mo, and the balance of Fe and inevitable impurities, wherein the components P, Mn, Ti, Nb and B satisfy the relationship represented by the following Formulae 1-1 and 1-2, depending on a desired tensile strength: Formula 1-1—tensile strength: 35 kg and 40 kg grades 29.1+89.4P(%)+3.9Mn(%)−133.8Ti(%)+157.5Nb(%)+0.18[B(ppm) or Mo(%)] 15=3544.9 Formula 1-2—tensile strength: 45 kg grade 29.1+98.3P(%)+4.6Mn(%)86.5Ti(%)62.5Nb(%)+0.21 [B(ppm) or Mo(%)]—4550, the components Ti, N, C and Nb satisfy the relationship represented by the following Formula 2: 0.6≦(1/0.65)(Ti−3.43N)/4C≦3.5, and Formula 3: 0.4≦(1/0.35)(Nb/7.75C)≦2.2. | 09-04-2008 |
Hyo Jin Kang, Pohang-Si KR
Patent application number | Description | Published |
---|---|---|
20100196937 | CASCADE ENZYME-LINKED IMMUNOSORBENT ASSAY - The present invention relates to a cascade enzyme-linked immunosorbent assay, more precisely a cascade enzyme-linked immunosorbent assay using magnetic microparticles (MMPs) immobilized with the target antigen specific primary antibody and silica nanoparticles (SPs) immobilized with a cascade reaction initiator and the antigen-specific secondary antibody. When the method of the present invention is applied in the detection of an antigen in biosamples, the detection sensitivity can be significantly increased. | 08-05-2010 |
20100209945 | METHOD FOR PREPARING ANTIBODY MONOLAYERS WHICH HAVE CONTROLLED ORIENTATION USING PEPTIDE HYBRID - The present invention relates to a method for preparing an protein monolayer using a peptide hybrid for protein immobilization, more precisely a peptide hybrid for protein immobilization which has improved solubility by introducing a PEG linker and a proper reaction group to the oligopeptide having specific affinity to selected types of proteins and is designed to provide enough space between solid substrates and proteins immobilized, whereby various solid substrates treated by the hybrid catch specific proteins effectively on. The peptide hybrid for protein immobilization of the present invention facilitates the control of orientation of an antibody on various solid surfaces and immobilization of various antibodies of different origins or having different isotypes with different affinity. Therefore, the surface treatment technique using the peptide hybrid of the invention can be effectively used for the production of various immunosensors and immune chips. | 08-19-2010 |
Hyung Gu Kang, Pohang-Si KR
Patent application number | Description | Published |
---|---|---|
20150345361 | Ferritic Stainless Steel for Automotive Exhaust System, Which Have Excellent Corrosion Resistance Against Condensate, Moldability, and High-Temperature Oxidation Resistance, and Method for Manufacturing Same - Provided is a ferritic stainless steel having excellent corrosion resistance against condensate, moldability, and high-temperature oxidation resistance, wherein the ferritic stainless steel is capable of being manufactured in an economically advantageous manner without adding expensive alloying elements. The ferritic stainless steel includes, by weight %, C: greater than 0 and 0.01% or less, Cr: 9 to 13%, Si: 0.5 to 1.0%, Mn: greater than 0 and 0.5% or less, P: greater than 0 and 0.035% or less, S: greater than 0 and 0.01% or less, Ti: 0.15 to 0.5%, N: greater than 0 and 0.01% or less, Sn: 0.05 to 0.5%, and the remainder is Fe and inevitable impurities, wherein Sn concentrated at the surface part of the stainless steel is 10 times or more than Sn concentrated at the base part. | 12-03-2015 |
In-Seok Kang, Pohang-Si KR
Patent application number | Description | Published |
---|---|---|
20080225087 | APPARATUS AND METHOD FOR EJECTING DROPLETS USING CHARGE CONCENTRATION AND LIQUID BRIDGE BREAKUP - Disclosed is an apparatus and method for ejecting droplets using charge concentration and liquid bridge breakup. The droplet ejection apparatus includes a reservoir storing a liquid; a capillary nozzle having a lower end submerged in the liquid stored in the reservoir and an upper end exposed outside the surface of the liquid, the capillary nozzle transferring the liquid to the upper end using capillary force; a potentiostat for applying a voltage to the liquid; a substrate mount on which a substrate is disposed to face the upper end of the capillary nozzle; and a distance adjusting unit for reciprocatingly moving the substrate between first and second positions with respect to the capillary nozzle, wherein the first position denotes a position where a distance between the upper end of the capillary nozzle and the surface of the substrate is less than a effective distance. | 09-18-2008 |
20080316261 | DROPLET PRINTING APPARATUS USING CAPILLARY ELECTRIC CHARGE CONCENTRATION - A droplet printing apparatus using capillary electric charge concentration includes a reservoir which contains a solution, a capillary nozzle comprising a back-end part and a front-end part disposed substantially opposite the back-end part, a target member spaced apart from the front-end part of the capillary nozzle at a predetermined distance, and a voltage supplier which supplies a voltage to the solution, wherein the back-end part is immersed in the solution and transmits the solution to the front-end part. | 12-25-2008 |
20090189932 | DROPLET EMITTING APPARATUS HAVING PIEZOELECTRIC VOLTAGE GENERATOR AND METHOD OF EMITTING A DROPLET USING THE SAME - Provided are a droplet emitting apparatus and a method of emitting droplets using the same. The apparatus includes a solution tank for containing a solution; a nozzle including an opening through which at least a droplet of the solution is emitted; and a voltage generator including a piezoelectric material for generating a voltage by instantaneous pressure application, wherein the voltage generated by the pressure to the piezoelectric material is applied to the solution in order for the at least a droplet of the solution to be emitted through the nozzle | 07-30-2009 |
20090322828 | DEVICE FOR PRINTING DROPLET OR INK ON SUBSTRATE OR PAPER - A device for printing a droplet onto a substrate includes: a droplet generating member which is needle-shaped and comprises a receiving portion disposed vertically to receive a solution, and a discharge hole connected to the receiving portion and formed on a bottom of the receiving portion so that the solution can be discharged from the receiving portion; a substrate disposed below the droplet generating member, the substrate includes a target portion to which the droplet discharged from the discharge hole of the droplet generating member is dropped and attached; a voltage applier applying a voltage to the droplet so that the droplet can be dropped onto the target portion of the substrate; a volume measuring unit measuring the volume of the droplet; and a droplet control unit maintaining the volume of the droplet at a predetermined level based on the measured volume of the droplet. | 12-31-2009 |
20100060697 | METHOD OF PRINTING DROPLET USING CAPILLARY ELECTRIC CHARGE CONCENTRATION - A method of printing droplets using capillary electric charge concentration includes: providing a capillary nozzle comprising a back-end part and a front-end part disposed substantially opposite the back-end part; spacing a target member apart from the front-end part of the capillary nozzle at a predetermined distance; immersing the back-end part in a solution; and supplying a voltage to the solution. The back-end part transmits the solution to the front-end part. | 03-11-2010 |
20110015094 | APPARATUS AND METHOD FOR EJECTING DROPLETS USING CHARGE CONCENTRATION AND LIQUID BRIDGE BREAKUP - Disclosed is an apparatus and method for ejecting droplets using charge concentration and liquid bridge breakup. The droplet ejection apparatus includes a reservoir storing a liquid; a capillary nozzle having a lower end submerged in the liquid stored in the reservoir and an upper end exposed outside the surface of the liquid, the capillary nozzle transferring the liquid to the upper end using capillary force; a potentiostat for applying a voltage to the liquid; a substrate mount on which a substrate is disposed to face the upper end of the capillary nozzle; and a distance adjusting unit for reciprocatingly moving the substrate between first and second positions with respect to the capillary nozzle, wherein the first position denotes a position where a distance between the upper end of the capillary nozzle and the surface of the substrate is less than a effective distance. | 01-20-2011 |
Kwan Hyoung Kang, Pohang-Si KR
Patent application number | Description | Published |
---|---|---|
20140219823 | MICROPUMP - A micropump configured to control flow of an insulation fluid includes: a rectangular channel | 08-07-2014 |
Myung-Su Kang, Pohang-Si KR
Patent application number | Description | Published |
---|---|---|
20150283112 | COMPOSITION COMPRISING MYRICETIN AS ACTIVE INGREDIENT FOR ENHANCING EXERCISE PERFORMANCE OR FATIGUE RECOVERY - Provided is a composition containing myricetin or a pharmaceutically available salt thereof as an active ingredient. The composition increases exercise capacity and enhances physical strength. In addition, the composition prevents aging and recovers from fatigue. The composition increases energy efficiency by improving the function of mitochondria, and also has an antiobesity effect by increasing energy consumption. Therefore, the composition may be significantly applied in a functional food or medicine field. | 10-08-2015 |
Young Yun Kang, Pohang-Si KR
Patent application number | Description | Published |
---|---|---|
20110130090 | RF RELAY OF FULL-DUPLEX AND METHOD FOR REMOVING INTERFERENCE OF EM LEVEL THEREOF - A RF relay of a full-duplex generates a conversion matrix to belong to a null space of a channel matrix of an interference channel, generates a transmitting signal by converting a received signal using the conversion matrix, and then outputs the transmitting signal to a transmitting antenna. Therefore, an interference signal of an electromagnetic wave level (EM level) that can be generated while the transmitting signal passes through the interference channel can be canceled. | 06-02-2011 |
20110244790 | RELAY AND METHOD FOR SIGNAL TRANSMISSION THEREOF - A method for signal transmission of a relay, includes estimating a first modulation/demodulation channel between a transmitter and the relay and a second modulation/demodulation channel between the relay and a receiver, and an interference channel of the relay, receiving a radio frequency signal from a transmitter, generating a transformation vector using the channel estimate in order to reduce self-interference of the relay under a predetermined level, converting the radio frequency signal using the transformation vector, and transmitting the converted radio frequency signal to the receiver. | 10-06-2011 |