Patents by Inventor Kyoung Il Lee
Kyoung Il Lee 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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Patent number: 11961551Abstract: A bitline sense amplifier including: an amplifier which is connected between a first sensing bitline and a second sensing bitline, and detects and amplifies a voltage difference between a first bitline and a second bitline in response to a first control signal and a second control signal; and an equalizer which is connected between a first supply line through which the first control signal is supplied and a second supply line through which the second control signal is supplied, and pre-charges the first bitline and the second bitline with a precharge voltage in response to an equalizing control signal, wherein the equalizer includes an equalizing enable transistor in which a source terminal is connected to the first supply line and performs equalizing in response to the equalizing control signal.Type: GrantFiled: January 27, 2022Date of Patent: April 16, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Soo Bong Chang, Young-Il Lim, Bok-Yeon Won, Seok Jae Lee, Dong Geon Kim, Myeong Sik Ryu, In Seok Baek, Kyoung Min Kim, Sang Wook Park
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Publication number: 20240104756Abstract: An apparatus for measuring a depth of a tread groove may include: a camera module capturing a video including an upper end portion of a tire while rotating around an upper end portion of the tire having a plurality of tread grooves, the video including a plurality of frames; a control module obtaining, based on the plurality of frames, a cross-sectional width of the tire in units of pixels by adding widths and depths of each of the plurality of tread grooves in units of pixels, a width of an inner block in units of pixels, and a width of an outer block in units of pixels, the inner and outer blocks are disposed on the tire; and a conversion module converting the depth of the tread groove in units of pixels into the depth in units of pixels.Type: ApplicationFiled: January 6, 2023Publication date: March 28, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Jung Mo KOO, Kyoung Soo WE, Hye Yeon LEE, Gwang Jin KIM, Hyung Il KOO
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Publication number: 20240079249Abstract: An atomic layer etching method using a ligand exchange reaction may include a substrate providing step of putting a substrate with a thin film formed thereon into a reaction chamber, a halogenated thin film forming step of forming a halogenated thin film on a surface of the thin film by infusing a halogenated gas into the reaction chamber, and an etching step of etching the halogenated thin film by infusing a ligand without a metal or metal precursor into the reaction chamber with the substrate with the halogenated thin film.Type: ApplicationFiled: January 17, 2023Publication date: March 7, 2024Inventors: Jae Chul LEE, Hyun Sik NOH, Dong Kyun LEE, Eun Ae JUNG, Kyoung-Mun KIM, Jooyong KIM, Younghun BYUN, Byeong Il YANG, Changhyun JIN
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Patent number: 11136284Abstract: Provided is a hydrogenation method of a phthalate compound. According to the present invention, stereoselectivity of the hydrogenation reaction may be increased, and thus the content of a cis isomer in a product may be increased. As a result, quality of the hydrogenation product as a plasticizer may be improved.Type: GrantFiled: November 1, 2018Date of Patent: October 5, 2021Assignee: HANWHA SOLUTIONS CORPORATIONInventors: Hyo Suk Kim, Ki Taeg Jung, Seong Min Park, Kyoung Il Lee, Hye Won Lee, Jae Heum Jung
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Patent number: 10173212Abstract: The present invention relates to a method for regenerating a hydrogenation catalyst for a phthalate compound. More specifically, the present invention regenerates a hydrogenation catalyst for a phthalate compound by using an alcohol, and thereby provides a method for regenerating a hydrogenation catalyst for a phthalate compound that is capable of continuously hydrogenating a phthalate compound without replacing a catalyst in a catalytic reactor, and is also capable of improving operational stability and the lifetime of a catalyst and increasing economic efficiency.Type: GrantFiled: March 31, 2016Date of Patent: January 8, 2019Assignee: HANWHA CHEMICAL CORPORATIONInventors: Ki Taeg Jung, Kyong Jun Yoon, Hyo Suk Kim, Jang Young Kwak, Pil Je Seong, Kyoung Il Lee
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Patent number: 8926777Abstract: The present invention relates to a method for preparing an optical sheet comprising the steps of: (a) preparing a transfer film having a single roughened side by coating one side of a first substrate with resin component comprising 100 parts by weight of binder resin and 70 to 130 parts by weight of spherical organic polymer beads, followed by drying; (b) laminating the transfer film preparing in step (a) with an ultraviolet-curable (UV-curable) resin-coated layer, which prepared by coating one side of a second substrate with UV-curable resin, such that the roughened side of the transfer film is facing the UV-curable resin-coated side of the second substrate; and (c) forming a roughened diffusive layer on the single-side of the second substrate having refractive index of 1.41 to 1.59 by curing the laminate obtained in step (b), followed by separating and removing the transfer film, wherein the roughened side of the transfer film has a segment angle of 130 to 150°.Type: GrantFiled: September 27, 2012Date of Patent: January 6, 2015Assignee: SKC Haas Display Films Co., Ltd.Inventors: Myung Duck Suh, Hyun Doo Lee, Sang Hun Lee, Kyoung-IL Lee, Jong Sun Yoon
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Patent number: 8672246Abstract: An easy and effective method for purifying graphene powder by removing magnetic impurities, wherein magnetic impurities are incorporated during the process of fabricating the graphene powder, is provided. The method for purifying graphene powder, the method including: (1) ball-milling a graphite material to form graphene powder; (2) dispersing the graphene powder in a solvent to form a suspension; and (3) separating magnetic impurities during stirring the suspension, by using a magnet, Wherein the magnetic impurities were incorporated into the graphene powder during ball-milling from the balls and dispersed in the suspension.Type: GrantFiled: August 17, 2011Date of Patent: March 18, 2014Assignee: Korea Institute of Science and TechnologyInventors: Jae Kap Lee, Kyoung-Il Lee
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Publication number: 20130164209Abstract: Disclosed is a method for fabricating graphene ribbons which are high-functional carbon materials. Provided a method of fabricating graphene ribbons, including (a) preparing a graphene helix carbon structure which is formed by spiral growing of a unit graphene , and (b) applying energy to the carbon structure to obtain ribbon-shaped graphenes.Type: ApplicationFiled: February 21, 2013Publication date: June 27, 2013Inventors: Jae-Kap LEE, Kyoung-Il LEE, So-Hyung LEE
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Patent number: 8358465Abstract: A three-dimensional (3D) display system and a method for use in the same are disclosed. The 3D display system includes: a display panel which includes a plurality of pixels, applies several-direction parallax image signals to the pixels according to regulations of a specific mode, and displays the several-direction parallax image signals; and a filter which is located at at least one of a front part and a rear part of the display panel, forms a predetermined barrier pattern according to regulations of the specific mode to implement a three-dimensional image, and separates the several-direction parallax image signals from each other.Type: GrantFiled: October 11, 2006Date of Patent: January 22, 2013Assignee: LG Electronics Inc.Inventors: Jin Wook Chang, Kyoung Il Lee, Tae Soo Park
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Publication number: 20120043402Abstract: An easy and effective method for purifying graphene powder by removing magnetic impurities, wherein magnetic impurities are incorporated during the process of fabricating the graphene powder, is provided. The method for purifying graphene powder, the method including: (1) ball-milling a graphite material to form graphene powder; (2) dispersing the graphene powder in a solvent to form a suspension; and (3) separating magnetic impurities during stirring the suspension, by using a magnet, Wherein the magnetic impurities were incorporated into the graphene powder during ball-milling from the balls and dispersed in the suspension.Type: ApplicationFiled: August 17, 2011Publication date: February 23, 2012Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jae Kap LEE, Kyoung-Il LEE
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Publication number: 20110097258Abstract: Disclosed is a method for fabricating graphene ribbons which are high-functional carbon materials. Provided a method of fabricating graphene ribbons, including (a) preparing a carbon structure in which a graphene ribbon is spirally grown (a graphene helix), revealing a tube shape, and (b) applying energy to unroll the graphene helix into the graphene ribbons.Type: ApplicationFiled: October 22, 2010Publication date: April 28, 2011Inventors: Jae-Kap LEE, Kyoung-Il LEE, So-Hyung LEE
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Patent number: 7344908Abstract: The present invention relates to an AFM (atomic force microscope) cantilever including a field effect transistor (FET) and a method for manufacturing the same; and, more particularly, to a method for manufacturing an AFM cantilever including an FET formed by a photolithography process, wherein an effective channel length of the FET is a nano-scale. Therefore, The present invention can easily implement a simulation for manufacturing the AFM cantilever including the FET by accurately controlling the effective channel length. And also, the present invention can manufacture the AFM cantilever including the FET having the effective channel ranging several tens to several hundreds nanometers by applying the low price photolithography device, thereby enhancing an accuracy and yield of the manufacturing process and drastically reducing process costs.Type: GrantFiled: December 21, 2006Date of Patent: March 18, 2008Assignee: Korea Electronics Technology InstituteInventors: Moon Suhk Suh, Jin-Koog Shin, Churl Seung Lee, Kyoung IL Lee
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Publication number: 20080016953Abstract: The present invention relates to an AFM(atomic force microscope) cantilever including a field effect transistor(FET) and a method for manufacturing the same; and, more particularly, to a method for manufacturing an AFM cantilever including an FET formed by a photolithography process, wherein an effective channel length of the FET is a nono-scale. Therefore, The present invention can easily implement a simulation for manufacturing the AFM cantilever including he FET by accurately controlling the effective channel length. And also, the present invention can manufacturer the AFM cantilever including the FET having the effective channel ranging several tens to several hundreds nanometers by applying the low price photolithography device, thereby enhancing an accuracy and yield of the manufacturing process and drastically reducing process costs.Type: ApplicationFiled: December 21, 2006Publication date: January 24, 2008Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Moon Suhk Suh, Jin-Koog Shin, Churl Seung Lee, Kyoung Il Lee
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Publication number: 20080011066Abstract: The present invention relates to various types of atomic force microscope (AFM) cantilevers formed by using a photolithography process and an etching process and a method for manufacturing the same, the AFM cantilever includes a handling unit made of a semiconductor substrate, a cantilever unit extendedly formed on a bottom surface of the handling unit in a shape of a rod, a probe unit formed in a shape of a vertically protruded peak by being extendedly formed on one side surface of the cantilever unit and a probe being in contact with a surface of an object to be analyzed by being formed on the peak of the probe unit. Therefore, the present invention has an advantage that the probe of several hundred nanometers can easily formed through a general photolithography process as well as it can easily obtain a natural resonance frequency of the designed cantilever by easily setting a thickness of the cantilever member.Type: ApplicationFiled: December 21, 2006Publication date: January 17, 2008Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Moon Suhk Suh, Jin-Koog Shin, Churl Seung Lee, Kyoung Il Lee
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Patent number: 7095070Abstract: In a method for fabricating a Bi thin film having a great MR (magnetoresistance) at room temperature and a method for fabricating a spintronics device using the same, the Bi thin film is fabricated by an electrodepostiting method and a sputtering method and has very great MR characteristics at room temperature, and it can be applied to various spintronics devices.Type: GrantFiled: March 12, 2004Date of Patent: August 22, 2006Assignee: Korea Institute of Science and TechnologyInventors: Woo Young Lee, Kyung Ho Shin, Suk Hee Han, Joon Yeon Chang, Hi Jung Kim, Dal Young Kim, Kwan Hyi Lee, Kyoung Il Lee, Min Hong Jeun
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Publication number: 20040179309Abstract: In a method for fabricating a Bi thin film having a great MR (magnetoresistance) at room temperature and a method for fabricating a spintronics device using the same, the Bi thin film is fabricated by an electrodepostiting method and a sputtering method and has very great MR characteristics at room temperature, and it can be applied to various spintronics devices.Type: ApplicationFiled: March 12, 2004Publication date: September 16, 2004Applicant: Korea Institute of Science and TechnologyInventors: Woo Young Lee, Kyung Ho Shin, Suk Hee Han, Joon Yeon Chang, Hi Jung Kim, Dal Young Kim, Kwan Hyi Lee, Kyoung Il Lee, Min Hong Jeun
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Patent number: 6304229Abstract: An electromagnetic wave detecting device includes a dipole antenna having a pair of disjointed arms for receiving an electromagnetic wave and a thermocouple having a first and a second leg of two dissimilar conductors, for detecting the electromagnetic wave received by the arms of the antenna.Type: GrantFiled: July 12, 2000Date of Patent: October 16, 2001Assignee: Korea Electronics Technology InstituteInventors: Dae Sung Lee, Se Hong Chang, Kyoung Il Lee, Sang Mo Shin