MICROWAVE HEATING DEVICE

Japanese Patent JP2005050643

A

To provide an improved microwave heating device capable of attaining a uniform heating with high efficiency.

Electric field of microwave and heating efficiency are heightened by adopting a resonance cavity. An object to be heated is inserted into an area of a weak electric field so that a Q value does not become lower than a necessary value and resonance of a required mode is obtained even when the object to be heated is inserted. The problem of mode selectivity is solved by maintaining the Q value higher than a prescribed value. The sheet-shaped object to be heated is inserted in the electric field almost uniform in z-direction and made to move in x-direction by adding a signal with a frequency very near to that of a resonant frequency in TM 110 mode to an almost cubic-shaped resonance cavity 1. The uniform heating with high efficiency is obtained by adding an almost uniform electromagnetic energy to the object to be heated.

OKAMOTO TADASHI
YASUDA MASAHIRO
SON HIYO

JP2003281005A

February 24, 2005

July 28, 2003

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TOKYO ELECTRONICS

H05B6/64; F27D11/12; (IPC1-7): H05B6/64; F27D11/12

JPS62128476A	1987-06-10
JPH08124670A	1996-05-17
JPH07294122A	1995-11-10
JPS5894792A	1983-06-06
JPS4739252B1
JPS4514950B1
JPH04308681A	1992-10-30
JPS5743386A	1982-03-11

Tadashi Otsuka

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