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. 29, 2025
Filed:
Mar. 27, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Yusaku Iwasawa, Shizuoka, JP;
Takaaki Tsuruya, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A fixing member includes a conductive layer that generates heat when a circulation current in a circumferential direction of the fixing member having a tubular shape is induced. The conductive layer includes segments arranged in a row in a longitudinal direction of the tubular shape and electrically separated from each other. Each segment is formed continuously over an entire circumference of the tubular shape in the circumferential direction. The conductive layer is configured such that a heat generation amount in an end portion of the fixing member in the longitudinal direction is less than a heat generation amount in a central portion of the fixing member in the longitudinal direction when an alternating magnetic field is applied to a whole area of the fixing member in the longitudinal direction in a state where a temperature of the central portion is equal to a temperature of the end portion.