| Patent application number | Description | Published |
|---|
| 20090086519 | Induction Heating Apparatus - An induction heating apparatus capable of stop heating without excessively boosting output voltages of a booster circuit and a power factor correction circuit is provided. | 04-02-2009 |
| 20090134149 | INDUCTION HEATING DEVICE - An induction heating device is provided that can realize an accrete sensing of the temperature of a to-be-heated object and that is user-friendly. To realize this, the induction heating device includes a sensor for sensing the temperature of the to-be-heated object and can carry out a heating operation only when it is determined that the to-be-heated object exists above the sensor. A display having a circular design and characters for example that shows the position of this sensor is provided on a top plate of the induction heating device. | 05-28-2009 |
| 20090152260 | INDUCTION HEATING DEVICE - An induction heating device includes a top plate arranged to have an object placed thereon, a heating coil receiving a high-frequency current to inductively heat the object, an infrared ray sensor for outputting a signal in accordance with energy of received infrared ray, a temperature detector for detecting a temperature of the object based on the signal output from the infrared ray sensor, a heating controller for controlling the high-frequency current supplied to the heating coil based on the detected temperature, and a failure determining unit for determining whether the infrared ray sensor has a failure or not. This induction heating device can detect the failure of the infrared ray sensor, and thus stops or suppresses the heating upon detecting the failure of the infrared ray sensor. | 06-18-2009 |
| 20100051608 | INDUCTION COOKING DEVICE - There is provided an induction cooking device for achieving high heating power at the time of high temperature cooking while ensuring safety. An induction cooking device includes a heating coil ( | 03-04-2010 |
| 20100065550 | INDUCTION HEATING COOKER - An infrared sensor | 03-18-2010 |
| 20100065551 | INDUCTION COOKING DEVICE - An infrared sensor | 03-18-2010 |
| 20100102054 | INDUCTION HEATING DEVICE - An induction heating device includes a top plate, a thermo-sensitive device, a temperature detector, a coil, a controller, and a light-emitting section. The top plate places thereon a cooking utensil containing material to be cooked. The thermo-sensitive device changes its electrical characteristics with the temperature of the cooking utensil. The temperature detector detects the temperature of the cooking utensil based on the electrical characteristics of the thermo-sensitive device. The coil heats the cooking utensil. The controller controls the coil based on the temperature information of the temperature detector, thereby controlling an amount of the electric heating power to be supplied to the cooking utensil. The light-emitting section emits visible light to the area over the thermo-sensitive device. The light from the light-emitting section illuminates the area over the thermo-sensitive device through the top plate. | 04-29-2010 |
| 20100176120 | INDUCTION HEATING COOKER - There is provided an induction heating cooker capable of preventing a pan having a pan bottom warped in a convex shape or a pan having a pan bottom with a small thickness from being excessively heated. The induction heating cooker includes a heating coil ( | 07-15-2010 |
| 20100230401 | INDUCTION HEATING APPARATUS - An induction heating device includes the following elements: a resonance circuit; a power factor improvement circuit for boosting rectified output, supplying the output to an inverter, and improving the power factor of a commercial alternating current; and a load material detector for detecting the material of the load. The inverter includes switching elements forming a full-bridge circuit. The drive frequency of the switching elements is switched between a frequency substantially equal to an integral multiple of the resonance frequency of the resonance circuit and a frequency substantially 1/n time (n being an integer equal to or larger than two) thereof, according to a detection result of the load material. | 09-16-2010 |
