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:
Jan. 08, 2013
Filed:
Feb. 20, 2007
Hiroshi Tominaga, Hyogo, JP;
Kenji Watanabe, Nara, JP;
Masaharu Ohashi, Hyogo, JP;
Shintaro Noguchi, Hyogo, JP;
Tomoya Fujinami, Hyogo, JP;
Hiroshi Tominaga, Hyogo, JP;
Kenji Watanabe, Nara, JP;
Masaharu Ohashi, Hyogo, JP;
Shintaro Noguchi, Hyogo, JP;
Tomoya Fujinami, Hyogo, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An induction heating cooker including a top plate where a pan is placed; a heating coil for induction heating the pan; an inverter circuit for supplying a high frequency current to the heating coil; an infrared sensor, which is arranged under the heating coil and detects an infrared light radiated from the pan; a light guiding part including an upper opening formed at an upper end facing the top plate and a lower opening formed at a lower end, and guiding the infrared light from the pan to the infrared sensor; and a control unit for controlling an output of the inverter circuit according to an output from the infrared sensor; wherein the light guiding part includes a nonmetallic material part in which the upper opening is formed upper than a lower surface of the heating coil.