Patent No. EP3984387 (titled "Aerosol-Generating Device Having Improved Heating Efficiency") was filed by Kt&G on Jul 16, 2021. The application was issued on Oct 29, 2025.
An aerosol generation device comprises a case with an insertion hole for receiving an aerosol-generating article and a heater configured to heat the article to generate an aerosol. To improve heating efficiency, reduce preheating time, and enhance tobacco smoke taste, an adapter is disposed between the insertion hole and the heater. The adapter is configured to deform the medium portion of the inserted aerosol-generating article into a desired pressed shape. In some embodiments, the adapter features a first open end on the insertion hole side and a second open end on the heater side; as the article moves toward the second open end, its medium portion is deformed by the adapter's inner shape. The device further facilitates easy removal of the aerosol-generating article.

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