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:
Dec. 23, 2003

Filed:

Mar. 15, 2002
Applicant:
Inventors:

Makoto Sakanobe, Ebina, JP;

Noriaki Kojima, Ebina, JP;

Takashi Fuchiwaki, Ebina, JP;

Yasunori Unagida, Ebina, JP;

Hiroyuki Koide, Ebina, JP;

Yoshinori Nakano, Ebina, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 2/100 ;
U.S. Cl.
CPC ...
G03G 2/100 ;
Abstract

A cleaning blade of an image forming apparatus is formed of urethane rubber, a modulus of repulsion elasticity (JIS K6255) is not less than 20% at 10° C. to not more than 70% at 40° C., a 300% modulus (JIS K6251) is not less than 200 kgf/cm , and a tear strength (JIS K6252 crescent type) is not less than 35 kgf/cm. A tension set (JIS K6262) of the cleaning blade ( ) is preferably not more than 2.5%, and is more preferably not more than 1.0%, and is still more preferably not more than 0.5%.


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