| (19) |
 |
|
(11) |
EP 1 229 153 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
04.02.2004 Bulletin 2004/06 |
| (43) |
Date of publication A2: |
|
07.08.2002 Bulletin 2002/32 |
| (22) |
Date of filing: 19.04.2001 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
Designated Extension States: |
|
AL LT LV MK RO SI |
| (30) |
Priority: |
31.01.2001 KR 2001004575
|
| (71) |
Applicant: LG ELECTRONICS INC. |
|
Seoul (KR) |
|
| (72) |
Inventors: |
|
- Kwan-Ho, Lee
Changwon City, Kyeongnam (KR)
- Jong-Woog, Lee
Changwon City, Kyeongnam (KR)
|
| (74) |
Representative: Henkel, Feiler, Hänzel |
|
Möhlstrasse 37
81675 München
81675 München (DE) |
|
| |
|
| (54) |
Method for manufacturing front sheet and microwave oven having the same |
(57) The present invention relates to a front sheet of a microwave oven and a method for
manufacturing the front sheet. The method for manufacturing the front sheet of the
microwave oven according to the present invention comprises a first process including
a chemical polishing process of removing foreign materials from and polishing a surface
of an aluminum sheet so as to give a predetermined luster thereto; a process of forming
a porous anodic oxide film onto the surface of the aluminum sheet; a process of dipping
the aluminum sheet into a solution containing a dye and penetrating the dye into a
porous film of the anodic oxide film; and a process of sealing the porous film into
which the dye has been penetrated. The microwave oven according to the present invention
includes a colored front sheet manufactured by anodizing and dyeing the surface of
the aluminum sheet and attached to a front face of a door portion or a control panel
portion of the microwave oven.