GENEVA, Jan. 13 -- YOO, Hyung Ju (401ho, 6-11, Yeonseo-ro 34ga-gilEunpyeong-guSeoul 03352), 유형주 (서울특별시은평구연서로34가길 6-11, 401호), CHOI, Woo Hee (101 dong 1801 ho, 51 Dobong-ro 110da-gilDobong-guSeoul 01461), 최우희 (서울특별시도봉구도봉로110다길 51, 101동 1801호), HWANG, Nan Kyung (321-31, Tongil-roSeodaemun-guSeoul 03731), 황난경 (서울특별시서대문구통일로 321-31) filed a patent application (PCT/KR2024/009292) for "ELECTROMAGNET UNIT...