The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2014
Filed:
Mar. 11, 2008
Hiroshi Tominaga, Hyogo, JP;
Kenji Watanabe, Nara, JP;
Izuo Hirota, Hyogo, JP;
Sadatoshi Tabuchi, Osaka, JP;
Keiko Isoda, Hyogo, JP;
Hiroshi Tominaga, Hyogo, JP;
Kenji Watanabe, Nara, JP;
Izuo Hirota, Hyogo, JP;
Sadatoshi Tabuchi, Osaka, JP;
Keiko Isoda, Hyogo, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An induction cooking device includes a heating coil performing induction heating of a cooking container placed on a top plate, an inverter circuit supplying high frequency current to the heating coil, an infrared sensor detecting an amount of infrared light radiated from the cooking container and outputting a detection signal based on the detected amount, a temperature sensor detecting a temperature of the cooking container by thermal conduction through the top plate, and a control unit controlling an output of the inverter circuit so that the outputs of the infrared and temperature sensors do not exceed the respective control temperature. The control unit judges whether or not the infrared sensor is normally detecting the temperature of the cooking container, and when it is judged that the infrared sensor is normally detecting the temperature of the cooking container, the control unit raises the control temperature of the temperature sensor.