Heating apparatus using electromagnetic wave

Details Heating apparatus using electromagnetic wave Heating apparatus using electromagnetic wave

2005-11-07

2008-09-30

Leung, Philip H (Department: 3742)

Electric heating

Microwave heating

Radiation protection

C219S739000, C174S374000, C174S388000

Reexamination Certificate

active

07429721

ABSTRACT:
A heating apparatus using an electromagnetic wave is disclosed, by which cut-of performance of an electromagnetic wave is enhanced by increasing an electromagnetic wave absorption bandwidth having cut-off performance below −70 dB. The present invention includes a door provided to an open front side of a body to be opened/closed and a choke filter having a panel type choke part arranged by at least one row each along an edge of the door and a filter part arranged by at least one row each along an edge of the choke part and having a plurality of slots, wherein a prescribed choke part is provided to a most inner side among rows of the choke and filter part.

REFERENCES:
patent: 3835283 (1974-09-01), Suzuki et al.
patent: 4166207 (1979-08-01), Burke
patent: 4390767 (1983-06-01), Bucksbaum et al.
patent: 4471194 (1984-09-01), Hosokawa et al.
patent: 5036171 (1991-07-01), Kim et al.
patent: 0196214 (1986-10-01), None
patent: 52-3744 (1977-01-01), None
patent: 59142334 (1984-08-01), None

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