Patent ID: 6961991

Claim:
A method of manufacturing a coil unit for a heating apparatus for heating a material to be heated by heat of a heat generating member that generates the heat by a magnetic flux from a coil, said method comprising: a first step of disposing one surface of a coil forming surface on a first frame, said coil having said coil forming surface formed by an arrangement of a coil wire; a second step of disposing a second frame on an other surface of said coil forming surface, wherein a movement of said coil forming surface between said first frame and said second frame is substantially restricted by said second step; a third step of pouring liquid resin between said first frame and said second frame after said second step; and a fourth step of curing the liquid resin to fix said coil between said first frame and said second frame after said third step, wherein said coil forming surface is disposed opposite to a surface of said heat generating member.