Patents by Inventor Dong-hui Lee
Dong-hui 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: 12157661Abstract: An ice-making water purifier includes a water tank unit, an instantaneous heating device, an extraction member, an ice-maker, a supply pump, an ice-making water inlet passage, an ice-making water supply valve, a flow rate sensor, and a controller configured to control driving of the supply pump and the opening and closing of the ice-making water supply valve such that purified water corresponding to a predetermined supply amount of ice-making water is supplied to the ice-maker on the basis of a flow rate value measured by the flow rate sensor. The controller controls the opening and closing of the channel such that purified water is preferentially supplied to the instantaneous heating device among the instantaneous heating device and the ice-maker.Type: GrantFiled: May 18, 2021Date of Patent: December 3, 2024Assignee: COWAY CO., Ltd.Inventors: Min-Suk Chang, Yong-Yeon Noh, Woo-Jin Joo, Myeong-Hoon Kang, Ki-Hong Min, Jin-Woo Choi, Young-Jae Lee, Dong-Hui Kim, Sang-Jin Youn, Gyeong-Jong Kim
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Publication number: 20240377848Abstract: A water purifier includes: a water outlet unit; a water temperature sensor; a filter; a cold water module for cooling the purified water to provide cold water; a hot water module including a heater for heating water, and a hot water body providing a space which receives the hot water or through which the hot water flows; a flow channel connected to the water outlet unit, the filter, the cold water module, and the hot water module to provide a passage through which the purified water, the cold water, the hot water, and discharge water flow; a valve module that are selectively opened/closed to control the flow of water in the flow channel; and a controller for controlling the valve module such that a temperature of the water discharged from the water outlet unit measured by the water temperature sensor is a target temperature.Type: ApplicationFiled: April 24, 2024Publication date: November 14, 2024Applicant: COWAY Co., Ltd.Inventors: Jin Ho HEO, Je Ho LEE, Byoung Phil LEE, Dong Hui KIM
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Patent number: 12103934Abstract: The present specification provides a heterocyclic compound represented by Chemical Formula 1, an organic light emitting device comprising the same, a composition for an organic material layer of an organic light emitting device, and a method for manufacturing an organic light emitting device.Type: GrantFiled: October 2, 2019Date of Patent: October 1, 2024Assignee: LT MATERIALS CO., LTD.Inventors: Mi-Jin Kim, Jun-Tae Mo, Ji-Yoon Byun, Yong-Hui Lee, Jong-Su Lee, Young-Seok No, Dong-Jun Kim
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Publication number: 20240270697Abstract: The present application provides a heterocyclic compound and an organic light emitting device in which the heterocyclic compound is contained in an organic material layer.Type: ApplicationFiled: January 25, 2022Publication date: August 15, 2024Applicant: LT MATERIALS CO., LTD.Inventors: Jun-Tae MO, Yong-Hui LEE, Dong-Jun KIM
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Patent number: 10530029Abstract: A modularization of a circulator and a directional coupler used in a wireless communication system comprises: a circulator; and a signal coupler, where the signal coupler does not have directivity by itself, and directivity of the circulator module is controlled by isolation characteristics of the circulator to improve electrical characteristics of a wireless communication system and miniaturize the wireless communication system by applying the electrical characteristics in common with a circulator to modularize the wireless communication system without implementation of a circuit of a directional coupler capable of sampling high-frequency signals.Type: GrantFiled: April 20, 2016Date of Patent: January 7, 2020Assignee: 3RWAVE CO., LTD.Inventors: Yong Ju Ban, Dong Hui Lee, Mi Yeon Kim
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Publication number: 20180159192Abstract: A modularization of a circulator and a directional coupler used in a wireless communication system comprises: a circulator; and a signal coupler, where the signal coupler does not have directivity by itself, and directivity of the circulator module is controlled by isolation characteristics of the circulator to improve electrical characteristics of a wireless communication system and miniaturize the wireless communication system by applying the electrical characteristics in common with a circulator to modularize the wireless communication system without implementation of a circuit of a directional coupler capable of sampling high-frequency signals.Type: ApplicationFiled: April 20, 2016Publication date: June 7, 2018Inventors: Yong Ju BAN, Dong Hui LEE, Mi Yeon KIM
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Patent number: 8485794Abstract: According to the present invention, a reciprocating compressor with a rotary valve comprises a cylinder block with plural cylinder bore, a drive shaft which is supported and permitted to rotate in relation to the cylinder block, a piston which is housed in the cylinder bore and allowed to reciprocate therein, a power transmitting unit which connects the piston and drive shaft, a rear housing wherein an intake chamber and exhaust chamber are formed, and a rotary valve which rotates with the drive shaft and is installed in the inner surface of a coupling hole formed in the cylinder block and permitted to slide and rotate therein. In the inner circumference of the cylinder block, connection holes are respectively connected to the cylinder bore. A bypass unit is included between the coupling hole and rotary valve and bypasses the refrigerant remaining in the connection hole of one cylinder bore during the compressive stroke of the piston, then discharges it through the connection hole of another cylinder bore.Type: GrantFiled: June 9, 2009Date of Patent: July 16, 2013Assignees: Doowon Technical College, Doowon Electronic Co., Ltd.Inventors: Geon Ho Lee, Dong Hui Lee, Seok Bong Lee, Ki Beom Kim, Joung Hyun Park
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Patent number: 8459962Abstract: Provided is a variable displacement swash plate type compressor including a cylinder block having a plurality of cylinder bores, a drive shaft rotatably supported by the cylinder block, a lug plate fixedly installed at the drive shaft, a swash plate rotated by the lug plate to vary its inclination angle, and pistons reciprocally accommodated in the cylinder bores depending on rotation of the swash plate, the compressor including a projection projecting from the lug plate toward the swash plate and disposed only behind the rotational direction of the drive shaft, a slope formed on the rear part of the lug plate at one side of the projection, an arm projecting from the swash plate toward the lug plate, a first guide coupled to the arm in front of the rotational direction of the drive shaft to move along the slope in a contact manner, and a second guide coupled to the arm adjacent to the projection to move along the slope in a contact manner.Type: GrantFiled: October 17, 2008Date of Patent: June 11, 2013Inventors: Geon-ho Lee, Dong-hui Lee, Tae-jin Lee, Ki-beom Kim
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Publication number: 20110107906Abstract: According to the present invention, a reciprocating compressor with a rotary valve comprises a cylinder block with plural cylinder bore, a drive shaft which is supported and permitted to rotate in relation to the cylinder block, a piston which is housed in the cylinder bore and allowed to reciprocate therein, a power transmitting unit which connects the piston and drive shaft, a rear housing wherein an intake chamber and exhaust chamber are formed, and a rotary valve which rotates with the drive shaft and is installed in the inner surface of a coupling hole formed in the cylinder block and permitted to slide and rotate therein. In the inner circumference of the cylinder block, connection holes are respectively connected to the cylinder bore. A bypass unit is included between the coupling hole and rotary valve and bypasses the refrigerant remaining in the connection hole of one cylinder bore during the compressive stroke of the piston, then discharges it through the connection hole of another cylinder bore.Type: ApplicationFiled: June 9, 2009Publication date: May 12, 2011Applicants: DOOWON TECHNICAL COLLEGE, DOOWON ELECTRONIC CO., LTD.Inventors: Geon Ho Lee, Dong hui Lee, Seok Bong Lee, Ki Beom Kim, Joung Hyun Park
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Publication number: 20100209261Abstract: Provided is a variable displacement swash plate type compressor including a cylinder block having a plurality of cylinder bores, a drive shaft rotatably supported by the cylinder block, a lug plate fixedly installed at the drive shaft, a swash plate rotated by the lug plate to vary its inclination angle, and pistons reciprocally accommodated in the cylinder bores depending on rotation of the swash plate, the compressor including a projection projecting from the lug plate toward the swash plate and disposed only behind the rotational direction of the drive shaft, a slope formed on the rear part of the lug plate at one side of the projection, an arm projecting from the swash plate toward the lug plate, a first guide coupled to the arm in front of the rotational direction of the drive shaft to move along the slope in a contact manner, and a second guide coupled to the arm adjacent to the projection to move along the slope in a contact manner.Type: ApplicationFiled: October 17, 2008Publication date: August 19, 2010Inventors: Geon-ho Lee, Dong-hui Lee, Tae-jin Lee
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Publication number: 20100135828Abstract: Provided is a variable displacement swash plate type compressor including a cylinder block having a plurality of cylinder bores, a front housing disposed in the front of the cylinder block to form a swash plate chamber, a drive shaft rotatably supported by the cylinder block, a lug plate disposed in the swash plate chamber of the front housing and fixed to the drive shaft, a rear housing disposed in the rear of the cylinder block to form a suction chamber and a discharge chamber in communication with the cylinder bores through suction/discharge valves, a swash plate rotated by the lug plate to vary its inclination angle, a spring supported between the lug plate and the swash plate, and pistons slidably engaged with the swash plate and reciprocally accommodated in the cylinder bores, characterized in that a power transmission groove is formed at a rear part of the lug plate opposite to the swash plate, a hooking projection inserted into the power transmission groove is formed at a front part of the swash plateType: ApplicationFiled: April 26, 2007Publication date: June 3, 2010Applicant: Doowon Technical CollegeInventors: Geonho Lee, Tae-jin Lee, Dong-hui Lee, Ho-Cheol Ki