Patents by Inventor Kyu-Chul Lee
Kyu-Chul 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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Publication number: 20240136844Abstract: Disclosed is an apparatus and method for controlling step charging of a secondary battery. A charging control unit determines a SOC, an OCV and a polarization voltage of the secondary battery, determines an OCV deviation corresponding to a difference between the OCV and a predefined minimum OCV value, determines a correction factor corresponding to the polarization voltage and the OCV deviation, determines a look-up SOC by correcting the SOC according to the correction factor, determines the magnitude of a charging current corresponding to the look-up SOC, and provides the determined charging current to a charging device.Type: ApplicationFiled: December 5, 2023Publication date: April 25, 2024Applicant: LG ENERGY SOLUTION, LTD.Inventors: Jin-Hyung LIM, Young-Jin KIM, Gi-Min NAM, Hyoung Jun AHN, Kyu-Chul LEE, Won-Tae JOE
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Patent number: 11936233Abstract: A charging control apparatus measures a first temperature of a first secondary battery selected from the plurality of secondary batteries, a second temperature of a coolant flowing into the cooling device, a charging current of the secondary battery pack, a first terminal voltage of the first secondary battery and a second terminal voltage of a second secondary battery closest to the cooling device, estimates a temperature of a temperature estimation point of the second secondary battery from a lumped thermal model having a thermal resistance between two points selected from the temperature estimation point of the second secondary battery, the first temperature measurement point and the second temperature measurement point, and measurement data about temperature, current and voltage, and determines the estimated temperature as a minimum temperature of the secondary battery pack, and varies a charging power provided to the secondary battery pack according to the minimum temperature.Type: GrantFiled: December 4, 2019Date of Patent: March 19, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Jin-Hyung Lim, Gi-Min Nam, Kyu-Chul Lee, Hyoung Jun Ahn, Won-Tae Joe
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Patent number: 11876397Abstract: Disclosed is an apparatus and method for controlling step charging of a secondary battery. A charging control unit determines a SOC, an OCV and a polarization voltage of the secondary battery, determines an OCV deviation corresponding to a difference between the OCV and a predefined minimum OCV value, determines a correction factor corresponding to the polarization voltage and the OCV deviation, determines a look-up SOC by correcting the SOC according to the correction factor, determines the magnitude of a charging current corresponding to the look-up SOC, and provides the determined charging current to a charging device.Type: GrantFiled: October 30, 2019Date of Patent: January 16, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Jin-Hyung Lim, Young-Jin Kim, Gi-Min Nam, Hyoung Jun Ahn, Kyu-Chul Lee, Won-Tae Joe
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Publication number: 20220221516Abstract: A battery management apparatus and method according to an embodiment of the present disclosure estimates an internal state of a battery cell by updating a battery model, and it is aimed to provide a battery management apparatus and method, which may construct a battery model optimized for a battery cell by obtaining a parameter of the battery model through a neural network and then repeatedly updating the parameter of the battery model based on a difference between an output value of the battery model that reflects the obtained parameter and an actually measured value, and control charging of the battery based on the optimized battery model.Type: ApplicationFiled: March 31, 2020Publication date: July 14, 2022Applicant: LG CHEM, LTD.Inventors: Kyu-Chul LEE, Won-Tae JOE
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Publication number: 20220006314Abstract: A charging control apparatus measures a first temperature of a first secondary battery selected from the plurality of secondary batteries, a second temperature of a coolant flowing into the cooling device, a charging current of the secondary battery pack, a first terminal voltage of the first secondary battery and a second terminal voltage of a second secondary battery closest to the cooling device, estimates a temperature of a temperature estimation point of the second secondary battery from a lumped thermal model having a thermal resistance between two points selected from the temperature estimation point of the second secondary battery, the first temperature measurement point and the second temperature measurement point, and measurement data about temperature, current and voltage, and determines the estimated temperature as a minimum temperature of the secondary battery pack, and varies a charging power provided to the secondary battery pack according to the minimum temperature.Type: ApplicationFiled: December 4, 2019Publication date: January 6, 2022Applicant: LG CHEM, LTD.Inventors: Jin-Hyung LIM, Gi-Min NAM, Kyu-Chul LEE, Hyoung Jun AHN, Won-Tae JOE
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Publication number: 20220006313Abstract: Disclosed is an apparatus and method for controlling step charging of a secondary battery. A charging control unit determines a SOC, an OCV and a polarization voltage of the secondary battery, determines an OCV deviation corresponding to a difference between the OCV and a predefined minimum OCV value, determines a correction factor corresponding to the polarization voltage and the OCV deviation, determines a look-up SOC by correcting the SOC according to the correction factor, determines the magnitude of a charging current corresponding to the look-up SOC, and provides the determined charging current to a charging device.Type: ApplicationFiled: October 30, 2019Publication date: January 6, 2022Applicant: LG CHEM, LTD.Inventors: Jin-Hyung LIM, Young-Jin KIM, Gi-Min NAM, Hyoung Jun AHN, Kyu-Chul LEE, Won-Tae JOE
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Publication number: 20150248382Abstract: An apparatus and method for converting an electronic form. After a table is extracted as an image of information on a cell range instead of text by analyzing the table of the PDF document file requested according to a standard operation of the PDF document file requested to be converted and converting the analyzed table into the standard document based on the prescribed reference information, the standard document including information on cell range corresponding to the table of the converted PDF document is converted into the XML document according to the XML conversion format. In turn, as the XML document is structurized and provided according to the prescribed XML reference information and the XML document file, the PDF document file is accurately converted into the XML document file which is in turn provided, thereby improving the form conversion quality of the document, and also easily storing and managing the document.Type: ApplicationFiled: November 12, 2013Publication date: September 3, 2015Applicant: KOREA INSTITUTE OF SCIENCE 7 TECHNOLOGY INFORMATIONInventors: Yong Ju Shin, Kiseok Choi, Jaesoo Kim, Hongro Lee, Kyu Chul Lee, Seung Jun Cha, Gyu Jin Chol
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Patent number: 8739577Abstract: A washing machine is disclosed. A washing machine includes a cabinet configured to define an exterior appearance thereof; a tub installed in the cabinet to hold wash water therein; a drum rotatably installed in the tub to accommodate laundry therein; at least one venting portion provided in an upper portion of the tub to communicate with an outside of the tub; and a ventilation part (300) provided in a lower portion of the tub to communicate with an inside of the tub. The above configuration enables convection current of internal air of the tub generated via the venting portion and the ventilation part (300).Type: GrantFiled: July 30, 2010Date of Patent: June 3, 2014Assignee: LG Electronics Inc.Inventors: Dae Wook Kwak, Jong Min Kim, Cheol Kang Heo, Han Ki Cho, Gyung Hun Nho, Soon Jo Lee, Kyu Chul Lee
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Patent number: 8733863Abstract: A laundry machine (1) including a cabinet (10) having an opening (10a) for loading and/or unloading laundry, a door (300) selectively opening and/or closing the opening of the cabinet (10), and a door positioning unit (A) for positioning the door (300) away from the cabinet (10).Type: GrantFiled: July 29, 2010Date of Patent: May 27, 2014Assignee: LG ELectronics Inc.Inventors: Dae Wook Kwak, Jong Min Kim, Han Ki Cho, Soon Jo Lee, Kyu Chul Lee, Cheol Kang Heo
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Patent number: 8151603Abstract: A door for a washing machine is disclosed. A door for a washing machine includes an inner frame having an opening with a predetermined size, an outer frame provided at a front surface of the inner frame, having an opening in communication with the opening of the inner frame, a glass member fitted between the inner and outer frames, covering the openings of the inner and outer frames, a decorative member provided at a front surface of the outer frame, having an opening in communication with the openings, and a front cover fitted between the decorative member and the outer frame, covering the openings of the inner and outer frames and the decorative member, the front cover having a positioning portion determining a position of the front cover coupled to the outer frame.Type: GrantFiled: April 10, 2009Date of Patent: April 10, 2012Assignee: LG Electronics Inc.Inventors: Min-Gu Kang, Kyu-Chul Lee, Chang-Woo Son
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Publication number: 20120060565Abstract: A washing machine is disclosed. A washing machine includes a cabinet configured to define an exterior appearance thereof; a tub installed in the cabinet to hold wash water therein; a drum rotatably installed in the tub to accommodate laundry therein; at least one venting portion provided in an upper portion of the tub to communicate with an outside of the tub; and a ventilation part (300) provided in a lower portion of the tub to communicate with an inside of the tub. The above configuration enables convection current of internal air of the tub generated via the venting portion and the ventilation part (300).Type: ApplicationFiled: July 30, 2010Publication date: March 15, 2012Applicant: LG ELECTRONICS INC.Inventors: Dae Wook Kwak, Jong Min Kim, Cheol Kang Heo, Han Ki Cho, Gyung Hun Nho, Soon Jo Lee, Kyu Chul Lee
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Publication number: 20120056518Abstract: A laundry machine (1) including a cabinet (10) having an opening (10a) for loading and/or unloading laundry, a door (300) selectively opening and/or closing the opening of the cabinet (10), and a door positioning unit (A) for positioning the door (300) away from the cabinet (10).Type: ApplicationFiled: July 29, 2010Publication date: March 8, 2012Inventors: Dae Wook Kwak, Jong Min Kim, Han Ki Cho, Soon Jo Lee, Kyu Chul Lee, Cheol Kang Heo
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Publication number: 20100031581Abstract: A door for a washing machine is disclosed. A door for a washing machine includes an inner frame having an opening with a predetermined size, an outer frame provided at a front surface of the inner frame, having an opening in communication with the opening of the inner frame, a glass member fitted between the inner and outer frames, covering the openings of the inner and outer frames, a decorative member provided at a front surface of the outer frame, having an opening in communication with the openings, and a front cover fitted between the decorative member and the outer frame, covering the openings of the inner and outer frames and the decorative member, the front cover having a positioning portion determining a position of the front cover coupled to the outer frame.Type: ApplicationFiled: April 10, 2009Publication date: February 11, 2010Applicant: LG ELECTRONICS INC.Inventors: Min-Gu Kang, Kyu-Chul Lee, Chang-Woo Son
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Patent number: 7366549Abstract: An integrated mobile terminal device including an external display unit, a personal digital assistant (PDA) unit and a cellular phone unit combined with one another, and a timer controlled by either the PDA unit or the cellular phone unit for enabling the PDA unit at given time intervals is provided. The cellular phone unit controls the external display unit in an enabled state, directs the PDA unit to control the external display unit when the cellular phone unit is switched off and the cellular phone unit detects the PDA unit to be in an enabled state, and transitions to an off state after activating the timer when the PDA unit is in a disabled state. The PDA unit determines whether the cellular phone unit is in the off state when the PDA unit transitions to the enabled state, and transitions to the disabled state after activating the timer when disabled.Type: GrantFiled: February 4, 2004Date of Patent: April 29, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Kyu-Chul Lee, Won-Sik Lee
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Publication number: 20060216022Abstract: Disclosed is a mobile terminal having multi-directional camera lens modules. The mobile terminal includes a first camera lens module; a second camera lens module located opposite to the first camera lens module; and a printed circuit board interposed between and electrically connected to the first and second camera lens modules to apply an image signal or image signals captured through the first and second camera lens modules to a main body of the mobile terminal.Type: ApplicationFiled: January 10, 2006Publication date: September 28, 2006Applicant: Samsung Electronics Co., Ltd.Inventors: Kyu-Chul Lee, Won-Sik Lee
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Publication number: 20040157642Abstract: An integrated mobile terminal device including an external display unit, a personal digital assistant (PDA) unit and a cellular phone unit combined with one another, and a timer controlled by either the PDA unit or the cellular phone unit for enabling the PDA unit at given time intervals is provided. The cellular phone unit controls the external display unit in an enabled state, directs the PDA unit to control the external display unit when the cellular phone unit is switched off and the cellular phone unit detects the PDA unit to be in an enabled state, and transitions to an off state after activating the timer when the PDA unit is in a disabled state. The PDA unit determines whether the cellular phone unit is in the off state when the PDA unit transitions to the enabled state, and transitions to the disabled state after activating the timer when disabled.Type: ApplicationFiled: February 4, 2004Publication date: August 12, 2004Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kyu-Chul Lee, Won-Sik Lee