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:
Jul. 24, 2007
Filed:
Sep. 08, 2003
Hisakazu Okajima, Aichi-ken, JP;
Hisakazu Okajima, Aichi-ken, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A heater is provided including a plate having a heating surface for heating an object to be heated and a resistance heater element provided in the plate. This resistance heater element includes a continuous wiring pattern including a plurality of flexures and a thermal uniform pattern part which improves thermal uniformity. The continuous wiring pattern includes a plurality of folding parts as the flexures. A first distance between the wirings in a first region of the wiring pattern other than a second region proximate the folding parts is substantially constant, and a second distance between the wirings in the second region is greater than the first distance.