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. 14, 2026
Filed:
Oct. 22, 2021
Lg Chem, Ltd., Seoul, KR;
Jong Seol Yoon, Daejeon, KR;
Jun Seok Nho, Daejeon, KR;
Chang Seok Ryoo, Daejeon, KR;
Dong Hwan Kim, Daejeon, KR;
Eun Kyu Seong, Daejeon, KR;
Myoung Hwan Oh, Daejeon, KR;
Young Min Ko, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
A rotary kiln comprises: a sintering device provided with a cylindrical rotation tube for mixing an input powder raw material while rotating in a horizontal direction; an external heating device for heating the powder raw material input into the rotation tube by heating the outside of the rotation tube; and an internal heating device for stirring and heating the powder raw material input into the rotation tube simultaneously. The internal heating device includes a microwave generation part for generating microwaves; a guide part for guiding the microwaves generated from the microwave generation part into the rotation tube; and a stirring heat generation part coupled to an inner circumferential surface of the rotation tube for stirring the powder raw material input into the rotation tube and simultaneously generating heat when absorbing the microwaves so as to heat the powder raw material.