System and method for providing seat occupancy information in public facilities
HAN CHANGWOOK, OH JONGSEOK, KIM WONSIK, LIM HYEJIN, KONG TEAHWAN, CHOI MYEONGHO, JUNG YONGGYU
Year of Publication 24.02.2021
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Year of Publication 24.02.2021
Patent
Apparatus and method for Automatic Reduction of Indoor Fine Dust
HAN CHANGWOOK, OH JONGSEOK, KIM WONSIK, LIM HYEJIN, KONG TEAHWAN, CHOI MYEONGHO, JUNG YONGGYU
Year of Publication 24.02.2021
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Year of Publication 24.02.2021
Patent
AUTOMATIC SNOW REMOVAL SYSTEM FOR VINYL HOUSE AND SMART VINYL HOUSE WITH THE SAME
HAN CHANGWOOK, OH JONGSEOK, KIM WONSIK, LIM HYEJIN, KONG TEAHWAN, CHOI MYEONGHO, JUNG YONGGYU
Year of Publication 10.02.2021
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Year of Publication 10.02.2021
Patent
SMART MULTI-TAP FOR CHILLER AND HEATER
HAN CHANGWOOK, OH JONGSEOK, KIM WONSIK, LIM HYEJIN, KONG TEAHWAN, CHOI MYEONGHO, JUNG YONGGYU
Year of Publication 10.02.2021
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Year of Publication 10.02.2021
Patent
SAFETY REINFORCEMENT TYPE SMART STROLLER
HAN CHANGWOOK, OH JONGSEOK, KIM WONSIK, LIM HYEJIN, KONG TEAHWAN, CHOI MYEONGHO, JUNG YONGGYU
Year of Publication 21.12.2020
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Year of Publication 21.12.2020
Patent
Smart Tumbler
KIM WON SIK, JUNG YONG GYU, IM HYAE JIN, HAN CHANG WOOK, KONG TEAHWAN, O JONG SEOK, CHOI MYEONG HO
Year of Publication 11.05.2020
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Year of Publication 11.05.2020
Patent