US 12,245,628 B2
External heating-type aerosol generating device and cigarette used therein
Ki Jin Ahn, Daejeon (KR); Soo Ho Kim, Cheongju-si (KR); Jong Yeol Kim, Sejong (KR); Chang Jin Park, Sejong (KR); and Jin Chul Yang, Sejong (KR)
Assigned to KT&G CORPORATION, Daejeon (KR)
Appl. No. 17/291,335
Filed by KT&G CORPORATION, Daejeon (KR)
PCT Filed Dec. 30, 2020, PCT No. PCT/KR2020/019396
§ 371(c)(1), (2) Date May 5, 2021,
PCT Pub. No. WO2021/177574, PCT Pub. Date Sep. 10, 2021.
Claims priority of application No. 10-2020-0026119 (KR), filed on Mar. 2, 2020.
Prior Publication US 2022/0264938 A1, Aug. 25, 2022
Int. Cl. A24D 1/20 (2020.01); A24D 1/02 (2006.01)
CPC A24D 1/20 (2020.01) [A24D 1/02 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A cigarette for use with an aerosol generating device,
the cigarette comprising:
a medium portion wrapper surrounding a first medium portion which includes a medium configured to generate an aerosol when heated;
a second medium portion directly adjacent to the first medium portion, the second medium portion comprising at least one of a sheet, a strand, or pipe tobacco formed of tiny bits cut from a tobacco sheet to generate nicotine; and
an outer shell surrounding the first medium portion, which is surrounded by the medium portion wrapper, the second medium portion and components other than the first medium portion and the second medium portion, collectively,
wherein the medium portion wrapper comprises laminated paper in which paper and metal having a preset thickness and thermal conductivity are laminated,
wherein the medium portion wrapper is coated with a thermal conductivity enhancement material comprising at least one of potassium citrate and sodium citrate, and
wherein the first medium portion is configured to be heated by a heater external to the cigarette and the second medium portion is configured to be heated by the outer shell.