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. 29, 2002
Filed:
Aug. 06, 2001
Hisataka Hisakuni, Ibaraki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In a cleaning device having a cleaning blade which is abutted against an image bearing member that bears an image and cleans the surface of the image bearing member, the cleaning blade includes at least a first rubber layer which is abutted against the image bearing member; and a second rubber layer that supports the first rubber layer; wherein the tan&dgr; peak temperature obtained by a dynamic viscoelasticity test of the first rubber layer is a value close to the surface temperature of the image bearing member; and wherein the tan &dgr; peak temperature obtained by a dynamic viscoelasticity test of the second rubber layer is lower than the tan&dgr; peak temperature of the first rubber layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile