Patents by Inventor Hyoung Jun Lee
Hyoung Jun 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: 11975991Abstract: A neutralization/water separation device for an esterified product including: a neutralization tank in which a crude product mixture containing alcohol and an ester compound, a neutralizing agent, and water are put to produce a neutralized mixture; a water separation tank disposed below the neutralization tank to divide the neutralization mixture into a floating layer and an aqueous layer; a partition wall extending downward from a ceiling of the water separation tank to provide a lower passage in the water separation tank; and a transfer line that transfers the neutralized mixture from the neutralization tank to the water separation tank, where the water separation tank includes: a first water separation part into which the neutralized mixture is introduced from the neutralization tank through the transfer line; and a second water separation part into which the neutralized mixture is introduced from the first water separation part through the lower passage, where the first water separation part and the seconType: GrantFiled: July 1, 2020Date of Patent: May 7, 2024Assignee: LG Chem, Ltd.Inventors: Yeon Uk Choo, Sung Kyu Lee, Hyun Kyu Kim, Chan Hyu Jin, Hyoung Jun, Jin Sung Park
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Publication number: 20240145019Abstract: A power source switching circuit for a memory device includes: a first power source voltage terminal for supplying a first power source voltage, a second power source voltage terminal for supplying a second power source voltage, a first metal-oxide-semiconductor field-effect transistor (MOSFET) and a second MOSFET connected in series with the first power source voltage terminal, a first level shifter connected to the first MOSFET and supplied with the first power source voltage, a second level shifter connected to the second MOSFET and supplied with the second power source voltage, a third MOSFET connected to the second MOSFET, and a third level shifter connected to the third MOSFET and supplied with a third power source voltage, and a memory cell of a non-volatile memory is programmed using the first power source voltage or the second power source voltage.Type: ApplicationFiled: June 7, 2023Publication date: May 2, 2024Applicant: Magnachip Semiconductor, Ltd.Inventors: Hyoung Kyu KIM, Il Jun KIM, Kwon Young OH, Sang Ho LEE
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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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Publication number: 20240100629Abstract: The present disclosure discloses a substrate heat-treating apparatus including a process chamber in which a flat substrate to be heat treated is placed, the process chamber comprising a beam transmitting plate placed below the flat substrate and an infrared transmitting plate placed above the flat substrate; a beam irradiating module for irradiating a VCSEL beam having a single wavelength to a lower surface of the flat substrate through the beam transmitting plate; and an temperature measuring module configured to measure the laser beam reflected from the lower surface or an upper surface the flat substrate, thereby measuring the temperature of the flat substrate.Type: ApplicationFiled: December 29, 2021Publication date: March 28, 2024Inventors: Hyoung June Kim, Byung Kuk Kim, Wang Jun Park, Tae Hyeong Kim, Ju Mi Lee, Byeong Gyu Jeong
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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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Publication number: 20240071788Abstract: The present disclosure discloses a flat substrate heating apparatus including a module support plate having a plurality of unit module regions placed on an upper surface thereof; a plurality of laser light source modules having a plurality of laser light source devices and seated on unit module regions of the module support plate, respectively; a power supply board placed below the module support plate and configured to supply power to the laser light source module; and an electrode terminal electrically connecting the laser light source module and the power supply board while detachably securing them to upper and lower surfaces of the module support plate.Type: ApplicationFiled: December 30, 2021Publication date: February 29, 2024Inventors: Hyoung June Kim, Byung Kuk Kim, Wang Jun Park, Jin Hong Lee, Nam Chun Lee
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Publication number: 20240071786Abstract: The present disclosure provides substrate heat-treating apparatus including a process chamber in which a flat substrate to be heat treated is placed, the process chamber comprising a beam irradiating plate placed below the flat substrate and an infrared transmitting plate placed above the flat substrate; a beam irradiating module for irradiating a laser beam to a lower surface of the flat substrate through the beam irradiating plate; and a gas circulation cooling module for spraying a cooling gas to an upper surface of the infrared transmitting plate, thereby cooling the infrared transmitting plate.Type: ApplicationFiled: December 23, 2021Publication date: February 29, 2024Inventors: Hyoung June Kim, Byung Kuk Kim, Wang Jun Park, Oh Sung Kwon, Jin Hong Lee, Nam Chun Lee
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Patent number: 10629421Abstract: A mass spectrometry device includes a sample seating part including an ultrasonic vibrator having a through hole through which liquid particles formed by the ultrasonic vibrator from an adsorbent material including a sample and a solvent are discharged, the adsorbent material being seated on the ultrasonic vibrator; a reaction part in which plasma or an ionization medium generated by plasma come into contact with the liquid particles discharged from the through hole to form an ionized material; an introduction part discharging and introducing the ionized material to a detection part; and the detection part analyzing the ionized material discharged from the introduction part. The mass spectrometry device and the mass spectrometry method can detect the components of various samples by converting a sample into liquid particles using ultrasonic waves and applying plasma and can detect samples in various fields without regard to locations.Type: GrantFiled: October 25, 2016Date of Patent: April 21, 2020Assignees: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE, KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHInventors: Yong-Hyeon Yim, Sung Woo Heo, Hyoung Jun Lee, Ji-Seon Oh, Byoung Chul Park, Jeong Hee Moon, Sung Goo Park, Jeong Hoon Kim
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Publication number: 20190006163Abstract: A mass spectrometry device includes a sample seating part including an ultrasonic vibrator having a through hole through which liquid particles formed by the ultrasonic vibrator from an adsorbent material including a sample and a solvent are discharged, the adsorbent material being seated on the ultrasonic vibrator; a reaction part in which plasma or an ionization medium generated by plasma come into contact with the liquid particles discharged from the through hole to form an ionized material; an introduction part discharging and introducing the ionized material to a detection part; and the detection part analyzing the ionized material discharged from the introduction part. The mass spectrometry device and the mass spectrometry method can detect the components of various samples by converting a sample into liquid particles using ultrasonic waves and applying plasma and can detect samples in various fields without regard to locations.Type: ApplicationFiled: October 25, 2016Publication date: January 3, 2019Inventors: Yong-Hyeon YIM, Sung Woo HEO, Hyoung Jun LEE, Ji-Seon OH
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Patent number: D555177Type: GrantFiled: September 12, 2006Date of Patent: November 13, 2007Assignee: LG Electronics Inc.Inventors: In Sun Yeo, In Young Hwang, Hyoung Jun Lee
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Patent number: D555178Type: GrantFiled: September 12, 2006Date of Patent: November 13, 2007Assignee: LG Electronics Inc.Inventors: In Sun Yeo, In Young Hwang, Hyoung Jun Lee
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Patent number: D640713Type: GrantFiled: September 22, 2010Date of Patent: June 28, 2011Assignee: LG Electronics Inc.Inventors: Sang Hun Kim, Hyoung Jun Lee, Jung Kyu Son, Mi Young Kim
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Patent number: D664388Type: GrantFiled: September 22, 2010Date of Patent: July 31, 2012Assignee: LG Electronics Inc.Inventors: So Jin Park, Hyoung Jun Lee, Jung Kyu Son, Mi Young Kim