US 12,186,576 B2
Energy concentration apparatus having central hole and micro-slit
Heon Jin Choi, Seoul (KR); and Jae Suk Sung, Suwon-si (KR)
Assigned to UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITY, Seoul (KR)
Filed by UIF (University Industry Foundation), Yonsei University, Seoul (KR)
Filed on Jun. 3, 2021, as Appl. No. 17/337,718.
Claims priority of application No. 10-2020-0083376 (KR), filed on Jul. 7, 2020.
Prior Publication US 2022/0008740 A1, Jan. 13, 2022
Int. Cl. A61N 2/00 (2006.01); A61N 2/02 (2006.01); H01Q 7/00 (2006.01); H01Q 13/10 (2006.01)
CPC A61N 2/006 (2013.01) [A61N 2/02 (2013.01); H01Q 7/00 (2013.01); H01Q 13/106 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An energy concentration apparatus comprising:
a body part;
a loop antenna coil part disposed on the body part; and
a cover part coupled to the body part in order to cover the loop antenna coil part;
wherein the cover part comprises a lower cover part and an upper cover part,
the lower cover part is coupled to the body part in order to cover the loop antenna coil part;
the upper cover part is coupled to a top surface of the lower cover part,
the lower cover part includes a lower central hole and at least one lower micro-slit,
the upper cover part includes an upper central hole and at least one upper micro-slit; and
at least one of the lower cover part and the upper cover part is rotatably provided, and an exposed space is variable as the central holes and the micro-slits overlap each other through rotation.