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.

Date of Patent:
Jul. 17, 2012

Filed:

Jun. 12, 2009
Applicants:

Masahiro Ohmori, Yokohama, JP;

Yohta Sakon, Isehara, JP;

Yasuyuki Yamashita, Zama, JP;

Masanobu Gondoh, Ebina, JP;

Sayaka Katoh, Atsugi, JP;

Inventors:

Masahiro Ohmori, Yokohama, JP;

Yohta Sakon, Isehara, JP;

Yasuyuki Yamashita, Zama, JP;

Masanobu Gondoh, Ebina, JP;

Sayaka Katoh, Atsugi, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A cleaning blade for removing fine particles from a cleaning target by contact with the cleaning target, a method of using the cleaning blade, and an image forming apparatus and process cartridge using the cleaning blade. The cleaning blade includes an elastic blade. A leading edge of the elastic blade includes a friction coefficient of 0.5 or less. The cleaning blade also includes a surface layer that covers the leading edge of the elastic blade. A thickness of the surface layer is between 1 to 50 μm at a position 50 μm away from the leading edge, and a hardness of the surface layer is greater hardness than the elastic blade.


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