| 摘要 |
PROBLEM TO BE SOLVED: To provide an efficient sheet-like heating element while reducing the radiation amount of electromagnetic waves. SOLUTION: This sheet-like heating element (1) comprises a heating element body (3) provided with a body-side electrode group (31, 33) and a heating sheet (35) and an conductive sheet (5) having almost the same shape as or slightly larger than that of the heating element body (3) and facing the heating element body (3) through insulating layers (39, 59) in a thickness direction. The conductive sheet (5) is provided with a sheet side electrode group (51, 55) individually corresponding to each body-side electrode constituting the body-side electrode group (31, 33), and the the conductive sheet (5) is connected with the heating element body (3) in series. Since a current flowing through the heating sheet and a current flowing through the conductive sheet are in opposite directions, electromagnetic waves emitted from them are also in opposite directions so that they offset each other. Accordingly, the amount of generated electromagnetic waves is reduced. COPYRIGHT: (C)2005,JPO&NCIPI
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