Patents by Inventor Gun Yong Sung
Gun Yong Sung has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20110180856Abstract: Provided is a sensing device, which includes a reactive material layer (260) responding to a specific functional group in a fluid, a sensing capacitor (B) including first and second electrodes disposed on and under an insulating layer (230), the first electrode being disposed under the reactive material layer (260), and a field effect transistor including a gate electrode connected with the first electrode of the sensing capacitor. Here, the reactive material layer (260) is formed in a conductive three-dimensional structure to widen a surface area. Thus, the sensing device may have high sensitivity by maximizing a capacitor sharing effect and a change in voltage amount applied to a gate, which may be caused by widening a surface area of the conductive three-dimensional structure with respect to the fluid flow.Type: ApplicationFiled: May 27, 2009Publication date: July 28, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Chang Geun Ahn, Chan Woo Park, Jong Heon Yang, In Bok Baek, Chil Seong Ah, An Soon Kim, Tae Youb Kim, Gun Yong Sung
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Patent number: 7982231Abstract: A silicon light emitting diode capable of effectively utilizing light radiated toward the lateral side of a substrate by including a side reflecting mirror is provided. The silicon-based light emitting diode includes a p-type silicon substrate having a plurality of grooves, a light emitting diode layer formed on each of the grooves of the silicon substrate, the light emitting diode layer including an active layer, an n-type doped layer, and a transparent electrode layer, and a metal electrode including a lower metal electrode formed on the bottom surface of the p-type silicon substrate and an upper metal electrode formed on the top surface of the transparent electrode layer. The lateral surface of each of the grooves is separated from the light emitting diode layer and used as a reflecting mirror. The lateral surface is referred to as the side reflecting mirror.Type: GrantFiled: April 25, 2006Date of Patent: July 19, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Tae-Youb Kim, Nae-Man Park, Gun-Yong Sung, Jong-Heon Yang
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Publication number: 20110165557Abstract: Provided are an apparatus and method for detecting biomolecules. The apparatus includes a FET having a substrate, a source electrode, a drain electrode, a channel region between the source and drain electrodes, and probe molecules fixed to the channel region, wherein the source and drain electrodes are separated on the substrate, a microfluid supplier selectively supplying one of a reference buffer solution of low ionic concentration and a reaction solution of high ionic concentration containing target molecules, to the channel region of the FET to which the probe molecules are fixed, and a biomolecule detector detecting the target molecules by measuring a first current value of the channel region of the FET, and a second current value of the channel region of the FET to which the target molecules and the probe molecules that bind to each other in the reaction solution of high ionic concentration are fixed.Type: ApplicationFiled: November 20, 2008Publication date: July 7, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Chil-Seong Ah, Ansoon Kim, Chan-Woo Park, Chang-Geun Ahn, Jong-Heon Yang, In-Bok Baek, Taeyoub Kim, HyeKyoung Yang, Gun-Yong Sung, Seon-Hee Park, Han-Young Yu, Moon-Gyu Jang
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Publication number: 20110151139Abstract: A method for selectively functionalizing a non-modified solid surface to create a photoresponsive coating layer includes: functionalizing a non-modified solid surface only, which is not oxidized and nitrified, with hydrogen; forming an EGPA coating layer on the non-modified solid surface functionalized with hydrogen using light; forming an EGA coating layer by removing an amine protecting group or an amine salt from the EGPA coating layer; and forming a coating layer having a photoresponsive functional group on the non-modified solid surface using the EGA coating layer.Type: ApplicationFiled: November 11, 2010Publication date: June 23, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: An Soon KIM, Wan Joong Kim, Chil Seong Ah, Chan Woo Park, Jong Heon Yang, Tae Youb Kim, Chang Geun Ahn, Gun Yong Sung
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Publication number: 20110139637Abstract: Provided are a method and apparatus for measuring an isoelectric point using a field effect transistor. The method includes providing a field effect transistor including a substrate, source and drain electrodes disposed on the substrate and spaced apart from each other, and a channel region between the source and drain electrodes, providing a first electrolyte solution having a first concentration to the channel region of the field effect transistor and measuring a first current value of the channel region between the source and drain electrodes, providing a second electrolyte solution having a second concentration greater than the first concentration and measuring a second current value of the channel region between the source and drain electrodes, and determining as the isoelectric point of the field effect transistor or a material disposed on the field effect transistor using a difference between the first and second current values.Type: ApplicationFiled: December 16, 2008Publication date: June 16, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Chil Seong Ah, Ansoon Kim, Chan Woo Park, Chang-Geun Ahn, Jong-Heon Yang, In Bok Baek, Taeyoub Kim, Gun Yong Sung, Seon-Hee Park, Han Young Yu
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Publication number: 20110136216Abstract: The present invention relates to a diagnostic kit for a respiratory disease that enables a preprocessing process with respect to a sample to be performed within a diagnostic kit when diagnosing respiratory disease using the diagnostic kit, and thereby enables all the operations starting from collecting the sample to verifying a diagnosis result to be automatically performed within the diagnostic kit. The diagnostic kit for a respiratory disease may perform a field diagnosis at anywhere without being restricted to a specific location, and even a general user may also easily obtain an accurate diagnosis result.Type: ApplicationFiled: October 12, 2010Publication date: June 9, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Kyung-Hyun KIM, Chul Huh, Chil-Seong Ah, Gun-Yong Sung
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Publication number: 20110136691Abstract: Provided are a gold-silver alloy nanoparticle chip, a method of fabricating the same and a method of detecting microorganisms using the same. The gold-silver alloy nanoparticle chip includes a hydrophilized glass substrate, a self-assembled monolayer formed on the glass substrate, and gold-silver alloy nanoparticles fixed on the self-assembled monolayer. The gold-silver alloy nanoparticle chip having such a structure enables microorganisms in a water purifier and tap water to be readily detected and enables detection efficiency to be enhanced.Type: ApplicationFiled: September 9, 2010Publication date: June 9, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Wan Joong KIM, Bong Kyu Kim, Gun Yong Sung, Chul Huh, Hyun Sung Ko, Jong Cheol Hong, Kyung Hyun Kim, Chil Seong Ah
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Publication number: 20110129846Abstract: A photonic biosensor, a photonic biosensor array, and a method of detecting a bio-material using the same are provided. The photonic biosensor includes a light emitting diode configured to emit light, a photodiode (PD), an optical fiber configured to connect the light emitting diode with the PD, and a micro-fluidic channel disposed on the optical fiber. Bio-antibodies or aptamers are fixed to the surface of the optical fiber, and the micro-fluidic channel includes gold (Au) nanoparticles to which bio-antibodies or aptamers are fixed. The photonic biosensor may be configured using absorption of surface plasmons in Au nanoparticles with respect to light traveling through the surface of the optical fiber configured to connect the light emitting diode with the PD, thus simplifying the manufacture of the biosensor and reducing the manufacturing cost.Type: ApplicationFiled: August 20, 2010Publication date: June 2, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Chul Huh, Kyung Hyun Kim, Bong Kyu Kim, Hyun Sung Ko, Wan Joong Kim, Jong Cheol Hong, Gun Yong Sung, Seon Hee Park
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Publication number: 20110101244Abstract: Provided is a treatment apparatus including a target material for generating protons. The treatment apparatus includes a cylindrical bore member having an inner space to receive a patient; a proton generating target material provided to an inner surface of the bore member; and a laser adapted to supply a laser beam to the proton generating target material so that protons are generated from the proton generating target material and projected to a tumor site of the patient. The proton generating target material includes a supporting film and a hydrogenated amorphous silicon (a-Si:H) film provided on the supporting film.Type: ApplicationFiled: July 28, 2010Publication date: May 5, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Moon Youn JUNG, Nam Soo Myung, Hyun Woo Song, Hyeon-Bong Pyo, Seon-Hee Park, Gun Yong Sung
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Publication number: 20110091905Abstract: Provided are a biochip and a method of detecting a reaction from the biochip. This method includes preparing a first mixture solution of polyvinylpyrrolidone (PVP) and a sample including target molecules, measuring absorbance or transmittance of the first mixture solution, preparing a second mixture solution including the PVP, the sample, and a receptor of the target molecules, measuring absorbance or transmittance of the second mixture solution, and calculating an absorbance or transmittance difference between the first mixture solution and the second mixture solution. Thus, it is possible to reduce the production cost of the biochip by inducing a reaction of an antigen and an antibody using PVP. Further, it is possible to detect an accurate quantity of the antigen by analyzing a quantity of antigen on the basis of the absorbance or transmittance difference.Type: ApplicationFiled: September 29, 2010Publication date: April 21, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Chil Seong AH, Gun Yong Sung, Wan Joong Kim, Bong Kyu Kim, Jong Cheol Hong, Chul Huh, Seon Hee Park
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Publication number: 20110068015Abstract: Provided are a biosensor and a method of driving the same. The biosensor includes a transistor including a substrate including a source, a drain, and a channel formed between the source and the drain, a gate insulating layer formed on the channel, and a source electrode and a drain electrode respectively connected with the source and the drain, a fluid line for covering the transistor to have an inner space together with the transistor and in which a sample solution including target molecules flows, a reference electrode formed on an inner wall of the fluid line, and a probe molecule layer attached on the reference electrode and reacting with the target molecules. Accordingly, the reference electrode is formed on the inner wall of the fluid line, enabling miniaturization of the bio device.Type: ApplicationFiled: February 11, 2010Publication date: March 24, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Chan Woo Park, Chang Geun Ahn, Chil Seong Ah, Tae Youb Kim, An Soon Kim, Jong Heon Yang, Gun Yong Sung
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Publication number: 20110068053Abstract: Provided is a filtering device including a filter part having a plurality of filters stacked to filter contaminants in fluid, and a sample part disposed on an outer plane of the filter part and having a plurality of samples corresponding to the filters, respectively. Therefore, a filter exchange period can be accurately determined by measuring properties of the filter varied during filtering of contaminants, and indiscriminate exchange of the filters can be prevented to reduce maintenance cost.Type: ApplicationFiled: July 13, 2010Publication date: March 24, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Bong Kyu KIM, Wan Joong Kim, Gun Yong Sung, Seon Hee Park
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Publication number: 20110053290Abstract: Provided is a biosensor chip. The biosensor chip includes a plurality of biosensor cells that are arranged in a matrix and selectively generate and output a sensed signal by addressing of external light, at least one sensing line that is simultaneously connected with the plurality of biosensor cells and transmits the sensed signal from one selected from the biosensor cells, and an output terminal that receives the sensed signal from the sensing line and outputs the sensed signal to an external reader. Thus, the biosensor cells are set in array in the biosensor chip without a separate driving unit, so that a process of manufacturing the biosensor chip is simplified. The biosensor cell to be sensed is selectively addressed through the external light, so that it is possible to reduce a price of the biosensor chip used as a disposable chip.Type: ApplicationFiled: August 17, 2010Publication date: March 3, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Chang Geun Ahn, Chan Woo Park, Jong Heon Yang, Tae Youb Kim, Chil Seong Ah, An Soon Kim, Bong Kyu Kim, Gun Yong Sung, Seon Hee Park
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Publication number: 20110043758Abstract: There is provided an apparatus for irradiating a beam at a user's eye gaze point and an operation method thereof. The apparatus includes an eye gaze point detecting part analyzing a movement of a user's pupils and detecting the user's eye gaze point, and a beam irradiation part irradiating a beam at the user's eye gaze point detected by the eye gaze point detecting part. The apparatus detects the user's current eye gaze point and irradiates the beam at the user's detected eye gaze point, thereby allowing for the performance of desired control with greater accuracy.Type: ApplicationFiled: April 19, 2010Publication date: February 24, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Chang Geun AHN, Rae Man Park, Gun Yong Sung, Seon Hee Park
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Publication number: 20110018006Abstract: A micro-sized semiconductor light-emitting diode includes an emission material layer formed on a silicon substrate, and including a silicon nano-dot; a hole injecting layer and an electron injecting layer that face each other, wherein the hole injecting layer and an electron injecting layer are formed between the emission material layer; a transparent conductive electrode layer formed on the electron injecting layer; and a first electrode and a second electrode that respectively inject a current in the hole injecting layer and the transparent conductive electrode layer from the outside.Type: ApplicationFiled: October 31, 2007Publication date: January 27, 2011Applicant: Electronics and Telecommunications Research InstituteInventors: Chul Huh, Jaeheon Shin, Kyung-Hyun Kim, JongCheol Hong, Gun-Yong Sung
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Publication number: 20100328774Abstract: Provided is a resonant reflective filter including a substrate and a grating layer, wherein the substrate is formed of a material having a lower reflective index than that of a material forming the grating layer. Thus, the resonant reflective filter can form a resonant spectrum having good symmetry and a sharp shape. Accordingly, the resonant reflective filter can have improved sensitivity and can be applied to optical systems that require a small linewidth.Type: ApplicationFiled: December 5, 2007Publication date: December 30, 2010Applicant: Electronics and Telecommunications Research InstituteInventors: Jongcheol Hong, Jaeheon Shin, Kyung-Hyun Kim, Chul Huh, Gun-Yong Sung
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Publication number: 20100309937Abstract: A semiconductor laser apparatus is provided which can vary an output wavelength of a light source. A semiconductor laser diode and one or more heat source devices arranged around the semiconductor laser diode are integrated on one substrate. The semiconductor laser diode is configured to be uniformly heated by the heat source device. An output wavelength of the semiconductor laser diode can be easily and quickly varied.Type: ApplicationFiled: April 2, 2008Publication date: December 9, 2010Applicant: Electronics and Telecommunications Research InstituteInventors: Hyun Sung Ko, Chul Huh, Kyung Hyun Kim, Jong Cheol Hong, Wan Joong Kim, Gun Yong Sung, Seon Hee Park
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Publication number: 20100296095Abstract: Provided are an optical cavity enhanced turbidimeter and a turbidity measure method. After casting a pulse beam or a beam having a steep intensity gradient into an optical cavity, the turbidity of the inside region of the optical cavity can be calculated using an attenuation rate of an output beam from the optical cavity.Type: ApplicationFiled: July 29, 2008Publication date: November 25, 2010Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITInventors: Jong-Cheol Hong, Gun Yong Sung, Sun-Hee Park, Kyung-Hyun Kim, Chul Huh, Hyun-Sung Ko, Wan-Joong Kim
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Publication number: 20100278694Abstract: A silicon biosensor and a manufacturing method thereof is provided, the silicon biosensor includes: a light source performing self emission a light detector generating a photoelectric current corresponding to an amount of incident light an optical fiber transmitting the light from the light source to the light detector and a micro fluidic channel adjusting an optical transmission rate of the optical fiber according to an antibody-antigen reaction when the antibody-antigen reaction occurs. The silicon biosensor can be easily integrated or bonded with a silicon electronic device, so that it is possible to manufacture the biosensor with a low price, under mass production.Type: ApplicationFiled: June 20, 2008Publication date: November 4, 2010Inventors: Chul Huh, Kyung Hyun Kim, Jong Cheol Hong, Hyun Sung Ko, Wan Joong Kim, Gun Yong Sung, Seon Hee Park
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Publication number: 20100273266Abstract: Provided are a target biomaterial detecting kit and a method of detecting the target biomaterial. The target biomaterial detecting kit includes a guided mode resonance filter comprising a substrate transmitting or reflecting light, a grating layer formed on the substrate, and a capture layer formed on the grating layer to capture a target biomaterial; and a nano complex comprising a nanoparticle head and a connection tail. Therefore, the wavelength peak of a reflection/transmission spectrum of light coming from the guided mode resonance filter can be largely shifted, and thus the presence and quantity of a target biomaterial can be easily detected. Moreover, although the amount of the target biomaterial is small, the target biomaterial can be reliably detected.Type: ApplicationFiled: October 29, 2008Publication date: October 28, 2010Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jong-Cheol Hong, Wan-Joong Kim, Kyung-Hyun Kim, Hyun-Sung Ko, Chul Huh, Gun Yong Sung, Sun-Hee Park