Patents by Inventor Byung Hee Kang
Byung Hee Kang 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: 20240092141Abstract: An air conditioning device for a vehicle includes: a housing having an inside divided into an inflow space, a heat exchange space, and an outflow space, which are straightly arranged, and having a plurality of discharge ports, which communicates with an interior, at the inflow space; a blowing unit disposed at the inflow space of the housing and configured to blow air; a heat exchange unit disposed at the heat exchange space of the housing and configured to adjust a temperature of conditioned air by exchanging heat with air; and an opening-closing door disposed at the outflow space of the housing and configured to open and close the plurality of discharge ports such that conditioned air at an adjusted temperature selectively flows to the plurality of discharge ports. The air conditioning device adjusts the temperature of conditioned air for respective modes and reduces a flow resistance of air.Type: ApplicationFiled: March 8, 2023Publication date: March 21, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, DOOWON CLIMATE CONTROL CO., LTD.Inventors: Kwang Ok Han, Young Tae Song, Yong Chul Kim, Gee Young Shin, Su Yeon Kang, Jae Sik Choi, Dae Hee Lee, Byeong Moo Jang, Ung Hwi Kim, Jae Won Cha, Won Jun Joung, Byung Guk An
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Publication number: 20240074965Abstract: The present disclosure relates to an ultraviolet light-blocking composition containing a centipede grass extract and a cosmetic composition and, more specifically, to an ultraviolet light-blocking composition comprising a centipede grass (Eremochloa ophiuroides) leaf extract as an active ingredient; and a cosmetic composition containing the ultraviolet light-blocking composition.Type: ApplicationFiled: January 6, 2022Publication date: March 7, 2024Applicant: KOREA ATOMIC ENERGY REREARCH INSTITUTEInventors: Byung-Yeoup CHUNG, Hyoung-Woo BAI, Seong-Hee KANG, Sung-Beom LEE, Seung-Sik LEE, Tae-Hoon KIM, Mi-Yeon KIM
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Patent number: 11469587Abstract: The present invention comprises a drive control unit configured such that, when a first power supply (Vin1) is abnormal, an OFF signal is simultaneously applied to the gates of first and second semiconductor switches (Q1, Q2) of a first switching element, and at the same time, an SCR switch of a second switching element and an FET bidirectional switch are turned on in order.Type: GrantFiled: July 17, 2019Date of Patent: October 11, 2022Assignee: SINAENG CO., LTD.Inventors: Byung Hee Kang, Jong Chan Park
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Publication number: 20210273440Abstract: The present invention comprises a drive control unit configured such that, when a first power supply (Vin1) is abnormal, an OFF signal is simultaneously applied to the gates of first and second semiconductor switches (Q1, Q2) of a first switching element, and at the same time, an SCR switch of a second switching element and an FET bidirectional switch are turned on in order.Type: ApplicationFiled: July 17, 2019Publication date: September 2, 2021Inventors: Byung Hee KANG, Jong Chan PARK
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Patent number: 10026979Abstract: Disclosed herein is an apparatus for controlling a fuel cell system, which includes multiple hot boxes including multiple fuel cell stacks, using a reconfigurable network having linear switching complexity, includes: a power conversion system for supplying outputs of normal stacks among the multiple fuel cell stacks to a load; at least one auxiliary power conversion system for supplying an output of at least one deteriorated stack among the multiple stacks to a load; a reconfigurable switch network for connecting in series or in parallel stacks of any hot box to stacks of another hot box; and a control unit for controlling an operation of the reconfigurable switch network by detecting a state of each of the stacks.Type: GrantFiled: March 17, 2015Date of Patent: July 17, 2018Assignees: SK INNOVATION CO., LTD., SNU R&DB FOUNDATIONInventors: Byung Hee Kang, Seong Je Wu, Kyung Bin Yoo, Naehyuck Chang, Jaemin Kim
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Patent number: 9312553Abstract: Disclosed herein is an apparatus for controlling a fuel cell system, including: a plurality of stack state detecting units for detecting respective states of a plurality of fuel cell stacks; a switching unit for connecting at least parts of the plurality of fuel cell stacks to each other in series or in parallel; and a control unit for detecting at least one degraded stack based on the states of the stacks detected by the plurality of stack state detecting units, and forming at least one degraded stack unit including the detected at least one degraded stack by controlling the operation of the switching unit, so the apparatus can quickly and easily connect the stacks to each other in series, in parallel or in series-parallel using cheap electric switches instead of using a plurality of power conditioning system (PCS).Type: GrantFiled: April 23, 2014Date of Patent: April 12, 2016Assignee: SK INNOVATION CO., LTD.Inventors: Kyung Bin Yoo, Young Dae Kim, Seong Je Wu, Su Hyun Lee, Byung Hee Kang, Jeong Pyo Lee
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Publication number: 20150270563Abstract: Disclosed herein is an apparatus for controlling a fuel cell system, which includes multiple hot boxes including multiple fuel cell stacks, using a reconfigurable network having linear switching complexity, includes: a power conversion system for supplying outputs of normal stacks among the multiple fuel cell stacks to a load; at least one auxiliary power conversion system for supplying an output of at least one deteriorated stack among the multiple stacks to a load; a reconfigurable switch network for connecting in series or in parallel stacks of any hot box to stacks of another hot box; and a control unit for controlling an operation of the reconfigurable switch network by detecting a state of each of the stacks.Type: ApplicationFiled: March 17, 2015Publication date: September 24, 2015Inventors: Byung Hee KANG, Seong Je WU, Kyung Bin YOO, Naehyuck CHANG, Jaemin KIM
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Publication number: 20150064587Abstract: Disclosed herein is an apparatus and method for controlling a fuel cell system. The apparatus includes a main power conditioning system which supplies output of normal stacks among a plurality of fuel cell stacks to a load, a sub-power conditioning system which supplies output of one or more deteriorated stacks among the fuel cell stacks to a load, a switching unit which changes a target to which output of each of the fuel cell stacks is connected, and a control unit which senses conditions of each of the fuel cell stacks and controls the switching unit. The apparatus prevents deterioration in performance of some stacks from affecting the other normal stacks. Furthermore, the deteriorated fuel cell stacks are separately controlled to provide power to a sub-load through a sub-power conditioning system.Type: ApplicationFiled: April 7, 2014Publication date: March 5, 2015Applicant: SK Innovation Co., Ltd.Inventors: Byung Hee Kang, Jin Sik Yang
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Publication number: 20150064588Abstract: Disclosed herein is an apparatus for controlling a fuel cell system, including: a plurality of stack state detecting units for detecting respective states of a plurality of fuel cell stacks; a switching unit for connecting at least parts of the plurality of fuel cell stacks to each other in series or in parallel; and a control unit for detecting at least one degraded stack based on the states of the stacks detected by the plurality of stack state detecting units, and forming at least one degraded stack unit including the detected at least one degraded stack by controlling the operation of the switching unit, so the apparatus can quickly and easily connect the stacks to each other in series, in parallel or in series-parallel using cheap electric switches instead of using a plurality of power conditioning system (PCS).Type: ApplicationFiled: April 23, 2014Publication date: March 5, 2015Applicant: SK Innovation Co., Ltd.Inventors: Kyung Bin YOO, Young Dae KIM, Seong Je WU, Su Hyun LEE, Byung Hee KANG, Jeong Pyo LEE
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Patent number: 6840198Abstract: An air-proportionality type boiler is provided. Since the air-proportionality type boiler directly controls a current proportionality gas valve according to an amount of air by using a low-price AC air blower, a low-price current proportionality gas valve and a low-price airflow sensor, a gas supply amount can be adjusted with respect to all ranges of the airflow amount. Also, an appropriate calorie required for proportionally controlling a present circulation water temperature to a set temperature, can be supplied. The boiler can be safely ignited to perform a combustion operation under the optimal condition although abnormal weathers and conditions. Accordingly, since a combustion performance is enhanced, combustion efficiency is high and a fuel cost can be saved.Type: GrantFiled: May 15, 2003Date of Patent: January 11, 2005Assignee: Kyungdong Boilor Co., Ltd.Inventors: Sin Gu Kang, Byung Hee Kang
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Publication number: 20040226522Abstract: An air-proportionality type water heater is provided. Since the air-proportionality type water heater directly controls a current proportionality gas valve according to an amount of air by using a low-price AC air blower, a low-price current proportionality gas valve and a low-price airflow sensor, a gas supply amount can be adjusted with respect to all ranges of the airflow amount. Also, an appropriate calorie required for proportionally controlling a present hot water temperature to a set temperature, can be supplied. The water heater can be safely ignited to perform a combustion operation under the optimal condition although abnormal weathers and conditions. Accordingly, since a combustion performance is enhanced, combustion efficiency is high and a fuel cost can be saved.Type: ApplicationFiled: May 15, 2003Publication date: November 18, 2004Inventors: Byung Hee Kang, Sin Gu Kang
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Publication number: 20040226521Abstract: An air-proportionality type boiler is provided. Since the air-proportionality type boiler directly controls a current proportionality gas valve according to an amount of air by using a low-price AC air blower, a low-price current proportionality gas valve and a low-price airflow sensor, a gas supply amount can be adjusted with respect to all ranges of the airflow amount. Also, an appropriate calorie required for proportionally controlling a present circulation water temperature to a set temperature, can be supplied. The boiler can be safely ignited to perform a combustion operation under the optimal condition although abnormal weathers and conditions. Accordingly, since a combustion performance is enhanced, combustion efficiency is high and a fuel cost can be saved.Type: ApplicationFiled: May 15, 2003Publication date: November 18, 2004Inventors: Sin Gu Kang, Byung Hee Kang