US 12,075,831 B2
Aerosol generating device including heating element and aerosol generating system
Sung Wook Yoon, Gyeonggi-do (KR); Yong Hwan Kim, Gyeonggi-do (KR); Seung Won Lee, Gyeonggi-do (KR); and Dae Nam Han, Seoul (KR)
Assigned to KT & G CORPORATION, Daejeon (KR)
Appl. No. 17/268,295
Filed by KT&G CORPORATION, Daejeon (KR)
PCT Filed Nov. 10, 2020, PCT No. PCT/KR2020/015707
§ 371(c)(1), (2) Date Feb. 12, 2021,
PCT Pub. No. WO2021/125561, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 10-2019-0170926 (KR), filed on Dec. 19, 2019; and application No. 10-2020-0067865 (KR), filed on Jun. 4, 2020.
Prior Publication US 2022/0338540 A1, Oct. 27, 2022
Int. Cl. A24F 40/46 (2020.01); A24F 40/10 (2020.01); A24F 40/40 (2020.01); A24F 40/50 (2020.01); A24F 40/70 (2020.01); A24D 1/20 (2020.01); A24F 40/20 (2020.01); A24F 40/30 (2020.01); A24F 40/465 (2020.01); A24F 40/51 (2020.01); H05B 3/42 (2006.01); H05B 3/44 (2006.01); H05B 3/46 (2006.01)
CPC A24F 40/46 (2020.01) [A24F 40/10 (2020.01); A24F 40/40 (2020.01); A24F 40/50 (2020.01); A24F 40/70 (2020.01); A24D 1/20 (2020.01); A24F 40/20 (2020.01); A24F 40/30 (2020.01); A24F 40/465 (2020.01); A24F 40/51 (2020.01); H05B 3/42 (2013.01); H05B 3/44 (2013.01); H05B 3/46 (2013.01); H05B 2203/017 (2013.01); H05B 2203/021 (2013.01); H05B 2203/037 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An aerosol generating device comprising:
a housing having an open end;
a battery arranged at another end of the housing and configured to supply power;
an accommodation space arranged at the open end of the housing and configured to accommodate an aerosol generating article; and
a heating element configured to heat the aerosol generating article and including a first portion and a second portion continuously arranged in a longitudinal direction of the aerosol generating article,
wherein the first portion and the second portion have different surface structures, and
wherein one of the first portion and the second portion of the heating element has an inner surface including a plurality of grooves formed by oxidizing.