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:
Oct. 04, 2016
Filed:
Jun. 10, 2011
Takashi Takehira, Hyogo, JP;
Fumitaka Ogasawara, Hyogo, JP;
Masashi Kinoshita, Hyogo, JP;
Yuji Yamamoto, Hyogo, JP;
Takashi Takehira, Hyogo, JP;
Fumitaka Ogasawara, Hyogo, JP;
Masashi Kinoshita, Hyogo, JP;
Yuji Yamamoto, Hyogo, JP;
Abstract
An induction heating cooker includes an inverter for supplying a current to a heating coil, a control portion for driving the inverter, an electrostatic capacitance detecting portion for measuring electrostatic capacitance of a plurality of electrodes, and a boiling over detecting portion. The boiling over detecting portion reduces an output of the inverter from a first set value to a second set value after a sensed value of the electrostatic capacitance is within a first variation range (ΔV) or more, and returns the output of the inverter to the first set value when a sensed value during a boiling over establishing period (T) performed after the sensed value has reached the first variation range or more and falls within a second variation range (ΔV).