Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Hiroshi Fukuda

Koji Yoshino

Makoto Nishimura

Keizo Nakajima

Masafumi Sadahira

Masaki Shibuya

Masayuki Kubo

Hiroshi Kawai

Takahito Ishii

Katsuhiko Uno

Takashi Takehira

Akihiro Umeda

Daisuke Hosokawa

Ryuta Kondo

Koichiro Kawazoe

Takayuki Akashi

In an induction cooking device according to the present invention, a boiling-over detection portion is adapted to perform a heating-output suppression operation, on detecting boiling over, when the capacitances of electrodes have been changed by an amount equal to or more than a predetermined value. Further, the boiling-over detection portion is prevented from performing the heating-output suppression operation, if the boiling-over detection portion detects that the capacitances of the electrodes have been changed by an amount equal to or more than the predetermined value, due to the fact that the heating output of another heating coil in a heating area which is not subjected to boiling-over detection has been changed by an amount equal to or more than a predetermined change width.

Induction cooking device

A polymer heating element includes an electrically insulating base substrate, at least a pair of electrodes made of a plurality of thin metal wires formed on the electrically insulating base substrate, a polymer resistor which is not in direct contact with the pair of electrodes and which has PTC characteristics, and conductive layers which are in contact with both the electrodes and the polymer resistor. The conductive layers include at least a resin component, a conductor component and an additive component.

Polymer heating element

Growing community of inventors

Hyogo, Japan

Hiroshi Fukuda