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:
Apr. 09, 2024
Filed:
Mar. 09, 2022
Canon Kabushiki Kaisha, Tokyo, JP;
Takaomi Uezono, Shizuoka, JP;
Takao Kawazu, Shizuoka, JP;
Teruhiko Namiki, Shizuoka, JP;
Atsushi Iwasaki, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A heater for use in an image heating apparatus includes a substrate, first and second conductors provided on the substrate, and heating elements. The heating elements are arranged between, and electrically connected in parallel to, the first and second conductors. When n denotes a number of heating elements, connected to one second conductor, in one row of the heating elements, a width L denotes a sum (n×Wh) of widths, as seen in a longitudinal direction of the substrate, of shortest current paths of all respective heating elements connected to the one second conductor plus a sum of widths, as seen in the longitudinal direction, of respective gaps between adjacent shortest current paths, and a ratio R denotes a ratio of the sum (n×Wh) of widths to the width L, the heating elements are configured so as to satisfy 0.54≤the ratio R<1.