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. 05, 2011
Filed:
Oct. 28, 2008
Hiroaki Sakai, Mishima, JP;
Norio Hashimoto, Odawara, JP;
Yuko Sekihara, Tokyo, JP;
Kazuo Kishino, Yokohama, JP;
Masaaki Takahashi, Yokohama, JP;
Katsuhisa Matsunaka, Inagi, JP;
Atsushi Iwasaki, Susono, JP;
Hiroyuki Sakakibara, Yokohama, JP;
Hiroaki Sakai, Mishima, JP;
Norio Hashimoto, Odawara, JP;
Yuko Sekihara, Tokyo, JP;
Kazuo Kishino, Yokohama, JP;
Masaaki Takahashi, Yokohama, JP;
Katsuhisa Matsunaka, Inagi, JP;
Atsushi Iwasaki, Susono, JP;
Hiroyuki Sakakibara, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A pressure member contacts a heating member to form a nip part where a recording material is heated and pinched-conveyed, and includes a first elastic layer and a second elastic layerhaving a higher thermal conductivity than that of the first elastic layer. An elastic layer is formed of a combination of the first elastic layer and the second elastic layer so that the thickness of the second elastic layer at the end portion is thicker than the thickness of the second elastic layer at the center portion in a longitudinal direction perpendicular to a recording material conveyance direction. Accordingly, when using the pressure member to contact the heating member to form the nip part, it is possible to reduce the difference between a center nip width and an end-portion nip width of the nip part.