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:
Aug. 27, 2013
Filed:
Feb. 04, 2009
Keizo Nakajima, Shiga, JP;
Akihiro Umeda, Shiga, JP;
Takahito Ishii, Kyoto, JP;
Katsuhiko Uno, Shiga, JP;
Hiroshi Fukuda, Shiga, JP;
Keizo Nakajima, Shiga, JP;
Akihiro Umeda, Shiga, JP;
Takahito Ishii, Kyoto, JP;
Katsuhiko Uno, Shiga, JP;
Hiroshi Fukuda, Shiga, JP;
Panasonic Corporation, Osaka, JP;
Abstract
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.