(19)
(11) EP 0 503 899 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.11.1992 Bulletin 1992/47

(43) Date of publication A2:
16.09.1992 Bulletin 1992/38

(21) Application number: 92302033.3

(22) Date of filing: 10.03.1992
(51) International Patent Classification (IPC)5: H05B 6/76, F24C 15/04
(84) Designated Contracting States:
DE FR GB

(30) Priority: 14.03.1991 JP 74611/91

(71) Applicant: KABUSHIKI KAISHA TOSHIBA
Kawasaki-shi, Kanagawa-ken 210 (JP)

(72) Inventor:
  • Wada, Masahiko, Nagoya Works, K.K. Toshiba
    Nagoya (JP)

(74) Representative: Freed, Arthur Woolf et al
MARKS & CLERK, 57-60 Lincoln's Inn Fields
London WC2A 3LS
London WC2A 3LS (GB)


(56) References cited: : 
   
       


    (54) Microwave oven


    (57) A microwave oven includes an inner barrier (28) mounted for electric wave shielding on a frame (20) of a door (13) for opening and closing a cooking chamber (12). The inner barrier (28) includes a transparent base plate (30) and a mesh conductor pattern (31) formed on a counter cooking chamber side of the base plate (30). The conductor pattern (31) includes a portion (33, 34) disposed along the peripheral edge of the base plate (30). The portion (33, 34) of the conductor pattern (31) has a line width larger than the other portion of the base plate (30). The portion (33, 34) of the conductor pattern (31) is in contact with the frame (20) of the door (13).






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