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:
Oct. 19, 2021
Filed:
Nov. 21, 2018
Lg Electronics Inc., Seoul, KR;
Hyo Jin An, Seoul, KR;
Younghwan Kwack, Seoul, KR;
Seongho Son, Seoul, KR;
Jaekyung Yang, Seoul, KR;
Yongsoo Lee, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
An induction heating device includes a casing, a cover plate coupled to a top of the casing, and a first induction heating module located within the casing and configured to heat an object on the cover plate. The first induction heating module includes: a working coil; an inverter configured to apply a resonant current to the working coil; a light guide located outside of the working coil, where the light guide includes a light-emission surface that is located at a top of the light guide, that is configured to indicate whether the working coil is driven, and that is configured to indicate an intensity of the working coil; a light emitting element vertically located below the light guide and configured to emit light to the light guide; and a control module configured to control the inverter and the light emitting element.