US 12,251,730 B2
Flexible tactile actuator
Hyeong Jun Kim, Seoul (KR); Myung Sun Park, Seoul (KR); Jong Hun Lee, Seoul (KR); Ji Goo Kang, Seoul (KR); and Nam Seok Kim, Seoul (KR)
Assigned to CK MATERIALS LAB CO., LTD., Seoul (KR)
Filed by CK MATERIALS LAB CO., LTD., Seoul (KR)
Filed on Oct. 19, 2022, as Appl. No. 17/968,969.
Application 17/968,969 is a division of application No. 15/763,206, granted, now 11,504,743, previously published as PCT/KR2017/011485, filed on Oct. 18, 2017.
Claims priority of application No. 10-2016-0148337 (KR), filed on Nov. 8, 2016; and application No. 10-2017-0045359 (KR), filed on Apr. 7, 2017.
Prior Publication US 2023/0049042 A1, Feb. 16, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B06B 1/08 (2006.01); G08B 6/00 (2006.01); G08B 7/00 (2006.01); H10N 35/00 (2023.01); H10N 35/01 (2023.01); H10N 35/85 (2023.01)
CPC B06B 1/08 (2013.01) [G08B 6/00 (2013.01); G08B 7/00 (2013.01); H10N 35/00 (2023.02); H10N 35/01 (2023.02); H10N 35/85 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A tactile actuator comprising:
a tactile transmitter containing magnetic particles;
a magnetic field generator configured to apply a magnetic field to the tactile transmitter; and
an elastic member connected to the tactile transmitter and disposed between the tactile transmitter and the magnetic field generator,
wherein, as the magnetic field generator applies or does not apply a magnetic field to the tactile transmitter, at least a portion of the tactile transmitter moves relative to the magnetic field generator, thereby generating a vibrating force of 0.2 G or more.