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:
Mar. 30, 2004
Filed:
Jul. 05, 2002
Applicant:
Inventors:
Seong-Deog Jang, Suwon, KR;
Dae-Sung Han, Hwasung, KR;
Yong-Woon Han, Kunpo, KR;
Han-Seong Kang, Suwon, KR;
Kwang-Seok Kang, Suwon, KR;
Assignee:
Samsung Electronics Co., Ltd., Suwon, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 2/550 ; H05B 4/116 ;
U.S. Cl.
CPC ...
H01J 2/550 ; H05B 4/116 ;
Abstract
A microwave oven includes a filter unit having choke coils disposed on ground lines, to which low and high voltage units are grounded, and on a power line connected to a controller so as to block high frequency noise. Impedances of the ground and power lines are greatly increased by the choke coils. Accordingly, noise is prevented from being radiated to the outside through the ground lines, and from flowing to the controller through the power line, thus allowing the controller to perform a stable operation.