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:
Mar. 15, 2016
Filed:
Jun. 10, 2011
Fumitaka Ogasawara, Hyogo, JP;
Takashi Takehira, Hyogo, JP;
Masashi Kinoshita, Hyogo, JP;
Yuji Yamamoto, Hyogo, JP;
Fumitaka Ogasawara, Hyogo, JP;
Takashi Takehira, Hyogo, JP;
Masashi Kinoshita, Hyogo, JP;
Yuji Yamamoto, Hyogo, JP;
Abstract
An induction heating cooker includes a boiling over detecting portion that reduces the heating output of an inverter to a predetermined value when a change amount of an electrostatic capacitance detected by a capacitance detecting portion with respect to a reference value is equal to or greater than a threshold value. The boiling over detecting portion stops a heating action or reduces the heating output to a third set value lower than a second set value when a change rate of the capacitance is equal to or greater than a predetermined change rate, and maintains the heating output at the second set value when the change rate of the capacitance is less than the predetermined change rate, during a boiling over determining period started from the time that the change amount of the capacitance with respect to the reference value is equal to or greater than the output reducing threshold value.