The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 16, 2024
Filed:
Feb. 01, 2021
Jahwa Electronics Co., Ltd., Cheongju-si, KR;
Hyo Jun Kim, Cheongju-si, KR;
Soon Koo Shim, Cheongju-si, KR;
Jong Soo Ryu, Cheongju-si, KR;
Hyun Gyu Sung, Cheongju-si, KR;
Jung Hoon Jang, Cheongju-si, KR;
Jun Ki Lee, Bucheon-si, KR;
JAHWA electronics Co., Ltd., Cheongju-si, KR;
Abstract
An actuator for generating vibration, including a shaft; a middle supporter having a fitting portion fitted into an upper portion of the shaft and a support portion below the fitting portion to form a first space where a lower portion of the shaft is exposed; a circuit board having a driving coil and a hollow formed through the middle supporter; a housing having an inner space that accommodates the middle supporter and the circuit board so the circuit board is fixed thereto; a first yoke plate having a first magnet installed to face an upper surface of the driving coil and coupled to an upper portion of the middle supporter; a second yoke plate having a second magnet installed to face a lower surface of the driving coil and coupled to a lower portion of the middle supporter; and a weight installed to at least one of the yoke plates.