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:
Oct. 19, 1999
Filed:
Mar. 02, 1998
Tetsuya Sano, Numazu, JP;
Koichi Tanigawa, Mishima, JP;
Hideo Nanataki, Tokyo, JP;
Atsuyoshi Abe, Susono, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image heating device includes a movable member including an electroconductive layer; an excitation coil for generating magnetic flux; wherein the magnetic flux generated by the excitation coil generates an eddy current which in turn generates heat in the movable member to heat an image on a recording material; and a magnetic member for guiding the magnetic flux; wherein the magnetic member is elongated in a direction perpendicular to a movement direction of the movable member, and the excitation coil is extended in a longitudinal direction of the magnetic member; wherein the magnetic member including a first magnetic portion adjacent to the movable member, a second magnetic portion, and a third magnetic portion between the first magnetic portion and the second magnetic portion and adjacent to the movable member with the excitation coil therebetween, as seen in the longitudinal direction.