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:
May. 07, 2019
Filed:
Jun. 21, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Naofumi Murata, Tokyo, JP;
Shoichiro Ikegami, Yokohama, JP;
Yutaka Arai, Kawasaki, JP;
Jun Miura, Kawasaki, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A roller usable in an image fixing device for an electrophotographic image forming apparatus includes a first elastic layer; a second elastic layer provided closer to a center of the roller than the first elastic layer, the second elastic layer having a thermal conductivity in a thickness direction higher than that of the first elastic layer; a third elastic layer provided between the first elastic layer and the second elastic layer, wherein an indentation elastic modulus EITof the first elastic layer, an indentation elastic modulus EITof the second elastic layer, and an indentation elastic modulus of the third elastic layer satisfy E<E<E.