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. 20, 2020
Filed:
Jul. 09, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Shingo Hirota, Toride, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A cleaning blade includes an elastic material, a first surface, a second surface and an end surface. The end surface includes a first region and a second region provided on opposite sides of the first region. The elastic material of the cleaning blade has indentation elastic modulus E[MPa] of 3 or more and 20 or less, and indentation elastic modulus E[MPa] of the end surface in the first region is (E+1) or more and 40 or less. Dynamic hardness DH1 [mN/μm] of the first region is 0.10 or more and 0.20 or less, dynamic hardness DH2 [mN/μm] of the second region is 0.15 or more and 0.50 or less, and a difference (DH2−DH1) is 0.05 [mN/μm] or more. A difference in thickness between the end surface in the first region and the end surface in the second region is 25 μm or less.