Patent ID: 7386243
Filing Date: 2008-06-10
Classification: G03G

Abstract:
1. A heating apparatus comprising: a heating member including a conductive layer having a first conductive member positioned in a first area and a second conductive member positioned in a second area which is at least partially different from the first area; and an induction heating unit including one coil and a control unit which controls a frequency of a high-frequency current to be supplied to the coil, the induction heating unit induction-heating the conductive layer by a magnetic field generated from the coil, wherein the first conductive member has a property of a skin resistance Rs≧4.7×10 the second conductive member has a property of a skin resistance Rs≧88×10 wherein ρ (Ω·m) denotes a resistivity of the conductive member, μ denotes a relative permeability of the conductive member, and f (Hz) denotes the frequency of the high-frequency current flowing through the coil at a time when the frequency f of the high-frequency current which flows through the coil is in a range of 20 kHz to 30 kHz.