Patent No. EP4238432 (titled "Aerosol Generation Device") was filed by Japan Tobacco on May 10, 2022. The application was issued on Jan 29, 2025.
An inhaler comprises a case (110) containing a chassis (150) and a power supply (BAT), and a detachable heating unit (170). The chassis (150) holds a plurality of magnets (124) arranged with gaps therebetween. An inner member (118) covers a side surface of the chassis (150), and an outer member (115) covers an outer surface of the inner member (118). The outer member (115) is replaceably fixed to the case (110) via the plurality of magnets held by the chassis (150) to maintain coverage of the inner member's outer surface. The device further relates to a power supply unit designed to protect controllers from external noise and improve durability, potentially incorporating a receptacle-mounted board with a charge IC and protection elements.

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