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. 27, 2015
Filed:
Apr. 28, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Kenji Karashima, Tokyo, JP;
Masaya Kawada, Yokohama, JP;
Tomohiro Tanoue, Yokohama, JP;
Masahiro Watabe, Yokohama, JP;
Shingo Ito, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A urethane rubber cleaning blade, wherein a surface of a contact portion of the cleaning blade that comes into contact with a member to be cleaned has a Young's modulus (Y) of 10 mgf/μmor more and 400 mgf/μmor less, the ratio (Y/Y) of the Young's modulus (Y) of an internal portion of the cleaning blade 50 μm spaced apart from the surface of the contact portion to the Young's modulus (Y) is 0.5 or less, and the average rate of change in Young's modulus from the surface to an internal portion of the cleaning blade 20 μm spaced apart from the surface is greater than or equal to the average rate of change in Young's modulus from the internal portion of the cleaning blade 20 μm spaced apart from the surface to an internal portion of the cleaning blade 50 μm spaced apart from the surface.