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:
Jun. 28, 2005
Filed:
Feb. 13, 2003
Applicants:
Takefumi Oguma, Tokyo, JP;
Nobutaka Watanabe, Tokyo, JP;
Inventors:
Takefumi Oguma, Tokyo, JP;
Nobutaka Watanabe, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B001/02 ;
U.S. Cl.
CPC ...
Abstract
A heating element device has a laminate of a plurality of heating element plates, each of the heating element plates having an insulator and a resistor, which is capable of generating heat upon the supply of electric power, provided on the insulator. The plurality of heating element plates are each independently controllable with respect to energization. The heating element device also has a temperature detection plate having an insulator and a resistor, capable of undergoing a change in resistance value upon a change in temperature, provided on the insulator.