US 7,402,781 B2
Induction heating cooler
Masao Kondo, Gifu (Japan); and Katsuharu Matsuo, Aichi (Japan)
Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan); Toshiba Ha Products Co., Ltd., Osaka (Japan); and Toshiba Consumer Marketing Corporation, Tokyo (Japan)
Appl. No. 10/545,378
PCT Filed Dec. 26, 2003, PCT No. PCT/JP03/17087
§ 371(c)(1), (2), (4) Date Aug. 12, 2005,
PCT Pub. No. WO2004/073355, PCT Pub. Date Aug. 26, 2004.
Claims priority of application No. 2003-036146 (JP), filed on Feb. 14, 2003.
Prior Publication US 2006/0091135 A1, May 04, 2006
Int. Cl. H05B 6/12 (2006.01)
U.S. Cl. 219—622  [219/620; 362/92] 5 Claims
OG exemplary drawing
 
1. An induction heating cooker comprising:
induction heating means having an induction heating coil;
a top plate made of a glass and provided over the induction heating means so that an object to be heated is placed thereon;
a heater which is provided below the top plate so as to self-heat;
a light-emitting display section provided in the top plate for displaying an output state of the induction heating means;
a light-emitting element disposed below the top plate, wherein:
a heat-insulating container is provided below the top plate and having an open top, the heat-insulating container having a bottom on which the heater is disposed;
the top plate includes a portion corresponding at least to the induction heating coil and the light-emitting element, said portion being coated with a light transmissible thin film comprising a semiconductor, a metal or a metal oxide and having such a light-transmittance characteristic that a larger amount of light from the light-emitting element is allowed to pass therethrough than other visible light;
the top plate has a heat-radiating opening formed in an entire or part of region thereof located over the heater, the heat-radiating opening being provided with a heat-resistant paint film; and
the heat-resistant paint film has a circumferential edge including a part overlapping the light transmissible thin film on a circumferential edge of the heat-radiating opening, and the heat-insulating container has an upper end surface which is arranged so as to abut against the overlapping part.