Patents by Inventor Ki-Woong Lee
Ki-Woong 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: 11973106Abstract: A semiconductor device includes a lower electrode; a supporter supporting an outer wall of the lower electrode; a dielectric layer formed on the lower electrode and the supporter; an upper electrode on the dielectric layer; a first interfacial layer disposed between the lower electrode and the dielectric layer and selectively formed on a surface of the lower electrode among the lower electrode and the supporter; and a second interfacial layer disposed between the dielectric layer and the upper electrode, wherein the first interfacial layer is a stack of a metal oxide contacting the lower electrode and a metal nitride contacting the dielectric layer.Type: GrantFiled: July 5, 2022Date of Patent: April 30, 2024Assignee: SK hynix Inc.Inventors: Jae Hee Song, Dong Hyun Lee, Kyung Woong Park, Cheol Hwan Park, Ki Vin Im
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Patent number: 11936318Abstract: Charging system and method using a motor driving system are proposed. The charging system includes a battery, an inverter to which D.C. power stored in the battery is applied, including a plurality of legs each including two switching elements, a motor including a plurality of coils of which first ends are respectively connected to connection nodes of the switching elements of each of the plurality of legs, and second ends are connected to each other to form a neutral point, and an inverter driving part configured to control switching of the switching elements, so that switching speeds of the switching elements are different for each mode of a motor driving mode and a charging mode so as to change magnitude of charging voltage supplied to the neutral point of the motor and to output the charging voltage to the battery.Type: GrantFiled: June 1, 2022Date of Patent: March 19, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Ji Woong Jang, Sang Cheol Shin, Yoo Jong Lee, Ki Jong Lee, Ho Tae Chun
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Publication number: 20220301650Abstract: The present technology provides a method of operating a controller that controls a semiconductor memory device including a plurality of memory cells. The method of operating the controller includes controlling the semiconductor memory device to perform a read operation on selected memory cells among the plurality of memory cells by using a read voltage set including at least one read voltage, receiving read data from the semiconductor memory device, and changing at least one read voltage included in the read voltage set by counting, based on the read data, a number of memory cells each having a threshold voltage lower than the at least one read voltage included in the read voltage set.Type: ApplicationFiled: August 30, 2021Publication date: September 22, 2022Inventors: Ki Woong LEE, Chan Young OH
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Patent number: 11442655Abstract: The present technology relates to a semiconductor device and a method of operating the same. The semiconductor device includes a sensing voltage generator configured to generate a temperature voltage having a voltage level determined according to an internal temperature of the semiconductor device and a reference voltage having a constant voltage level, a code generator configured to generate a temporary code including a sensing code value corresponding to the internal temperature and a boundary value indicating whether the internal temperature is included in a boundary portion associated with at least one temperature range corresponding to the sensing code value based on the temperature voltage and the reference voltage, and a code correction component configured to generate a correction code for generating an operation voltage of the semiconductor device by correcting the temporary code, based on the temporary code and a previously generated correction code.Type: GrantFiled: October 29, 2020Date of Patent: September 13, 2022Assignee: SK hynix Inc.Inventors: Young Gyun Kim, Ki Woong Lee, Sang Jin Lee
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Patent number: 11315650Abstract: A memory system is provided to include a memory device and a memory controller configured to control the memory device. The memory device includes a first data latch storing information about a state of the memory cell and is configured to: execute a first verification operation and a second verification operation on the memory cell in response to receiving, from the memory controller, a suspend command to suspend a program operation being performed on the memory cell; store, in the first data latch, a temporary value obtained based on a result value of the first verification operation and a result value of the second verification operation; and execute, a resumption command to resume the program operation, a third verification operation, and restore the result value of the first verification operation and the result value of the second verification operation.Type: GrantFiled: January 22, 2021Date of Patent: April 26, 2022Inventors: Ju Yong Kim, Young Gyun Kim, Ki Woong Lee
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Publication number: 20210407607Abstract: A memory system is provided to include a memory device and a memory controller configured to control the memory device. The memory device includes a first data latch storing information about a state of the memory cell and is configured to: execute a first verification operation and a second verification operation on the memory cell in response to receiving, from the memory controller, a suspend command to suspend a program operation being performed on the memory cell; store, in the first data latch, a temporary value obtained based on a result value of the first verification operation and a result value of the second verification operation; and execute, a resumption command to resume the program operation, a third verification operation, and restore the result value of the first verification operation and the result value of the second verification operation.Type: ApplicationFiled: January 22, 2021Publication date: December 30, 2021Inventors: Ju Yong KIM, Young Gyun KIM, Ki Woong LEE
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Publication number: 20210397362Abstract: The present technology relates to a semiconductor device and a method of operating the same. The semiconductor device includes a sensing voltage generator configured to generate a temperature voltage having a voltage level determined according to an internal temperature of the semiconductor device and a reference voltage having a constant voltage level, a code generator configured to generate a temporary code including a sensing code value corresponding to the internal temperature and a boundary value indicating whether the internal temperature is included in a boundary portion associated with at least one temperature range corresponding to the sensing code value based on the temperature voltage and the reference voltage, and a code correction component configured to generate a correction code for generating an operation voltage of the semiconductor device by correcting the temporary code, based on the temporary code and a previously generated correction code.Type: ApplicationFiled: October 29, 2020Publication date: December 23, 2021Inventors: Young Gyun KIM, Ki Woong LEE, Sang Jin LEE
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Publication number: 20210292592Abstract: An embodiment of the present invention provides a coating composition comprising a composite in which a dissociated natural polymer compound is bound onto at least a portion of the surface of acrylic polymer particles.Type: ApplicationFiled: November 1, 2018Publication date: September 23, 2021Inventors: Ki Woong LEE, Dae Yong YEON, Woo Jin KIM, Kwang Ho CHOI, Jae Yong CHOI
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Patent number: 10850989Abstract: An embodiment of the present invention provides a method for preparing a solid lithium salt from a lithium solution including the steps of, preparing a mixture in which a phosphorus-containing material is added to a lithium solution in step 1; adding a basic solution to the prepared mixture to adjust the pH in step 2; making the pH-adjusted mixture react by raising its temperature and filtering to recover lithium phosphate in step 3; preparing an acid lithium solution in which distilled water and acid are added to the recovered lithium phosphate, in step 4; and recovering a solid lithium salt by evaporative concentration of the acid lithium solution, in step 5.Type: GrantFiled: August 31, 2017Date of Patent: December 1, 2020Assignee: SUNGEEL HITECH CO., LTD.Inventors: Suk-Hyun Byun, Kang-Myung Yi, Ki-Woong Lee, Kwang-Joong Kim, Woo-Young Jung
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Patent number: 10697041Abstract: The present invention provides a manufacturing method of crude copper from low-grade copper sludge, one embodiment of the present invention comprises the steps of: (1) calcining a low-grade copper sludge (step 1); (2) producing a mixture by adding at least one selected from a group consisting of binder, flux and combinations thereof to the calcined low-grade copper sludge (step 2); (3) producing a briquette by compression molding the mixture (step 3); (4) melting and reducing by charging the briquette into a submerged arc furnace with adding flux (step 4); and (5) separating crude copper and slag produced by melting and reducing (step 5).Type: GrantFiled: November 22, 2017Date of Patent: June 30, 2020Assignee: SUNGEEL HIMETALInventors: Young-Myoung Seo, Kang-Myung Yi, Ki-Woong Lee, Suk-Hyun Byun, Hyun-Jin Sung
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Patent number: 10566664Abstract: An embodiment of the present invention provides a method for producing lithium phosphate from a lithium solution, comprising the steps of, preparing a mixture in which a phosphorus-containing material is added to a lithium solution in step 1; adding a basic solution to the prepared mixture to adjust the pH to 10 to 12 in step 2; and making the pH-adjusted mixture react by raising its temperature and filtering to recover lithium phosphate in step 3.Type: GrantFiled: August 31, 2017Date of Patent: February 18, 2020Assignee: SUNGEEL HITECH CO., LTD.Inventors: Suk-Hyun Byun, Kang-Myung Yi, Ki-Woong Lee, Kwang-Joong Kim, Woo-Young Jung
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Patent number: 10465065Abstract: Disclosed herein is a compound composition for a vehicle interior material using a natural fiber, which has use for enhancing physical properties, such as shock resistance, tensile strength, flexural strength, elongation, flexural modulus of elasticity, and heat deflection temperature, while realizing a reduction in weight of a vehicle. The compound composition is composed of a base resin obtained by mixing a high-fluidity polypropylene resin and a high-impact polypropylene resin, the base resin being a thermoplastic resin, a reinforcing filler that is a lightweight, eco-friendly, and low-density natural fiber, an impact modifier that is ethylene-propylene-octene rubber, an inorganic filler that functions as a nuclear agent, and a maleic-anhydride compatibilizer.Type: GrantFiled: August 11, 2017Date of Patent: November 5, 2019Assignees: HANYANG ADVENCED MATERIALS CO., LTD., SEOYON E-HWA CO., LTD.Inventors: Cheol Woo Kim, Deuk Ki Joo, Ki Woong Lee
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Patent number: 10041145Abstract: The disclosure describes a method of separating and recovering valuable metals from remanufacturing solution of a spent desulfurization catalyst containing vanadium, and more particularly, to a method of separating and recovering a valuable metal from remanufacturing solution of a spent desulfurization catalyst containing vanadium, which includes: adding organic acid to a spent hydrodesulfurization catalyst after collecting the spent hydrodesulfurization catalyst in order to prepare the remanufacturing solution of the spent hydrodesulfurization catalyst; adding an extracting agent and a diluent to the remanufacturing solution to extract molybdenum and extracting vanadium from an extracted filtrate to obtain an organic phase; and adding a stripping agent to the organic phase to strip and recover vanadium.Type: GrantFiled: October 4, 2013Date of Patent: August 7, 2018Assignee: SUNGEEL HIMETALInventors: Kang-Myung Yi, Ki-Woong Lee, Hong-In Kim, Mishra Debaraj, Kwang-Joong Kim
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Publication number: 20180170763Abstract: An embodiment of the present invention provides a method for preparing a solid lithium salt from a lithium solution including the steps of, preparing a mixture in which a phosphorus-containing material is added to a lithium solution in step 1; adding a basic solution to the prepared mixture to adjust the pH in step 2; making the pH-adjusted mixture react by raising its temperature and filtering to recover lithium phosphate in step 3; preparing an acid lithium solution in which distilled water and acid are added to the recovered lithium phosphate, in step 4; and recovering a solid lithium salt by evaporative concentration of the acid lithium solution, in step 5.Type: ApplicationFiled: August 31, 2017Publication date: June 21, 2018Applicant: SUNGEEL HITECH CO., LTD.Inventors: Suk-Hyun BYUN, Kang-Myung YI, Ki-Woong LEE, Kwang-Joong KIM, Woo-Young JUNG
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Publication number: 20180166753Abstract: An embodiment of the present invention provides a method for producing lithium phosphate from a lithium solution, comprising the steps of, preparing a mixture in which a phosphorus-containing material is added to a lithium solution in step 1; adding a basic solution to the prepared mixture to adjust the pH to 10 to 12 in step 2; and making the pH-adjusted mixture react by raising its temperature and filtering to recover lithium phosphate in step 3.Type: ApplicationFiled: August 31, 2017Publication date: June 14, 2018Applicant: SUNGEEL HITECH CO., LTD.Inventors: Suk-Hyun BYUN, Kang-Myung YI, Ki-Woong LEE, Kwang-Joong KIM, Woo-Young JUNG
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Publication number: 20180148812Abstract: The present invention provides a manufacturing method of crude copper from low-grade copper sludge, one embodiment of the present invention comprises the steps of: (1) calcining a low-grade copper sludge (step 1); (2) producing a mixture by adding at least one selected from a group consisting of binder, flux and combinations thereof to the calcined low-grade copper sludge (step 2); (3) producing a briquette by compression molding the mixture (step 3); (4) melting and reducing by charging the briquette into a submerged arc furnace with adding flux (step 4); and (5) separating crude copper and slag produced by melting and reducing (step 5).Type: ApplicationFiled: November 22, 2017Publication date: May 31, 2018Inventors: Young-Myoung SEO, Kang-Myung YI, Ki-Woong LEE, Suk-Hyun BYUN, Hyun-Jin SUNG
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Publication number: 20180044512Abstract: Disclosed herein is a compound composition for a vehicle interior material using a natural fiber, which has use for enhancing physical properties, such as shock resistance, tensile strength, flexural strength, elongation, flexural modulus of elasticity, and heat deflection temperature, while realizing a reduction in weight of a vehicle. The compound composition is composed of a base resin obtained by mixing a high-fluidity polypropylene resin and a high-impact polypropylene resin, the base resin being a thermoplastic resin, a reinforcing filler that is a lightweight, eco-friendly, and low-density natural fiber, an impact modifier that is ethylene-propylene-octene rubber, an inorganic filler that functions as a nuclear agent, and a maleic-anhydride compatibilizer.Type: ApplicationFiled: August 11, 2017Publication date: February 15, 2018Applicants: SEOYON E-HWA CO., LTD., HANYANG ADVENCED MATERIALS CO., LTD.Inventors: CHEOL WOO KIM, DEUK KI JOO, KI WOONG LEE
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Publication number: 20160138131Abstract: The disclosure describes a method of separating and recovering valuable metals from remanufacturing solution of a spent desulfurization catalyst containing vanadium, and more particularly, to a method of separating and recovering a valuable metal from remanufacturing solution of a spent desulfurization catalyst containing vanadium, which includes: adding organic acid to a spent hydrodesulfurization catalyst after collecting the spent hydrodesulfurization catalyst in order to prepare the remanufacturing solution of the spent hydrodesulfurization catalyst; adding an extracting agent and a diluent to the remanufacturing solution to extract molybdenum and extracting vanadium from an extracted filtrate to obtain an organic phase; and adding a stripping agent to the organic phase to strip and recover vanadium.Type: ApplicationFiled: October 4, 2013Publication date: May 19, 2016Inventors: Kang-Myung YI, Ki-Woong LEE, Hong-In KIM, Mishra DEBARAJ, Kwang-Joong KIM
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Publication number: 20100310740Abstract: Provided are a composition for the ketogenic diet and a preparation method thereof, specifically a composition suitable for the ketogenic diet provided in a liquid form, which has the ketogenic ratio of 3-5:1, and a preparation method thereof. The composition for the ketogenic diet according to the preparation method of the present invention can be easily taken by patients since it does not cause rejections such as vomit or diarrhea which may occur with the start of the ketogenic diet, and eliminate the inconvenience of taking additional food for obtaining other functional elements required for the human body owing to functional substances included therein. Moreover, the homogenous liquid form of the present composition allows it to easily slide down the throat and provides good texture in the mouth, thereby it helps a patient to easily take the same.Type: ApplicationFiled: December 3, 2009Publication date: December 9, 2010Applicant: Namyang Dairy Products Co., Ltd.Inventors: Dong Wook Kim, Heung Dong Kim, Seung Hwan Jeong, Hyun Seok Jin, Kyoung Ae Park, Sang Cheon Lee, Ki Woong Lee, Young Hoon Cho, Eun Ju Lee
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Patent number: 6406646Abstract: A resistive paste composition comprising 5 to 75% by weight of ruthenium(Ru) metal or ruthemium oxide particles having a specific surface area of 5 to 30 m2/g, 5 to 75% by weight of silver(Ag) metal or its compound particles having an average particle size of 0.1 to 3 &mgr;m and a maximum particle size of 8 &mgr;m or less, 5 to 40% by weight of a glass frit having a softening point of 400 to 550° C. and 5 to 45% by weight of an organic binder can be coated by a conventional screen-printing or dipping method on a substrate and then calcined at a low temperature of about 500 to 600° C. to form an electrically heat-generating thick film layer having good stability, uniformity and heat-up characteristics.Type: GrantFiled: December 15, 2000Date of Patent: June 18, 2002Assignee: Daejoo Fine Chemical Co., Ltd.Inventors: Ki-Woong Lee, Jong-Hyun Park, Kyung-Won Chung