US 12,444,963 B2
Power supply unit for aerosol generation device
Yasuhiro Ono, Tokyo (JP); Minoru Kitahara, Tokyo (JP); and Shujiro Tanaka, Tokyo (JP)
Assigned to JAPAN TOBACCO INC., Tokyo (JP)
Filed by Japan Tobacco Inc., Tokyo (JP)
Filed on May 2, 2024, as Appl. No. 18/652,876.
Application 18/652,876 is a continuation of application No. 17/972,630, filed on Oct. 25, 2022, granted, now 12,009,685.
Application 17/972,630 is a continuation of application No. 17/369,964, filed on Jul. 8, 2021, granted, now 11,563,334, issued on Jan. 24, 2023.
Claims priority of application No. 2020-118744 (JP), filed on Jul. 9, 2020.
Prior Publication US 2024/0283268 A1, Aug. 22, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 7/00 (2006.01); A24F 40/10 (2020.01); A24F 40/95 (2020.01); A24F 40/60 (2020.01)
CPC H02J 7/0063 (2013.01) [A24F 40/10 (2020.01); A24F 40/95 (2020.01); H02J 7/007 (2013.01); A24F 40/60 (2020.01); H02J 2207/20 (2020.01); H02J 2310/22 (2020.01)] 10 Claims
OG exemplary drawing
 
1. A power supply unit for an aerosol generation device comprising:
a secondary battery configured to supply power to a heater configured to heat an aerosol source;
a step-up system configured to function by a stepped-up voltage supplied from the secondary battery;
a step-down system configured to function by a stepped-down voltage supplied from the secondary battery; and
a direct-coupling system configured to function by a voltage supplied from the secondary battery,
wherein the heater is an electrical resistor configured to heat the aerosol source using the power.