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:
Nov. 14, 2017
Filed:
Jun. 03, 2016
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/20 (2006.01);
U.S. Cl.
CPC ...
G03G 15/206 (2013.01); G03G 2215/2035 (2013.01); G03G 2215/2061 (2013.01);
Abstract
The roller for use in a fixing device, includes a metal core, a first elastic layer formed on an outer side of the metal core, the first elastic layer having voids, and a second elastic layer formed on an outer side of the first elastic layer, the second elastic layer having a microhardness higher than a microhardness of the first elastic layer, in which an outer diameter of an end portion of the roller is larger than an outer diameter of a middle portion of the roller in a longitudinal direction of the roller, and in which the microhardness of the second elastic layer is 25 degrees or more and 50 degrees or less.