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公开(公告)号:US20240389657A1
公开(公告)日:2024-11-28
申请号:US18269181
申请日:2023-04-06
Applicant: KT&G CORPORATION
Inventor: Wonkyeong LEE , Paul Joon SUNWOO , Moonsang LEE
Abstract: A heating structure includes a substrate including a first surface and a second surface opposite to the first surface, a surface plasmon resonance (SPR) structure positioned on the first surface, and a reflective layer positioned on the second surface.